Bash Script to Automatically Restart and Resume Failed rsync Transfers

#!/bin/bash
# automatically restart and resume rsync transfer on failure
 
while [ 1 ]
do
    rsync --progress --partial-dir=.rsync-partial rsync://site.onion/dir/Inventory1.rar ./
    if [ "$?" = "0" ] ; then
        echo "rsync completed normally"
        exit
    else
        echo "rsync failure. Retrying soon..."
        sleep 30
    fi
done

Setup pass on multiple computers

Instructions:

1. Create GPG Key

   gpg --full-generate-key
   gpg -k
   gpg --export-secret-key 6002450973C62F2FD9F8353101C4ECCB53ACCE05 > key-gpg-pws.private
   

   Note: Copy the private key to all of your devices.

2. Initialize git repository on first computer and gitlab (create new project on gitlab first)

   pass init 6002450973C62F2FD9F8353101C4ECCB53ACCE05
   pass git init
   pass git remote add origin ssh://git@gitlab.com/username/pws
   pass insert email/gmail.com
   pass insert forum/reddit.com
   pass git push origin master
   

3. Setup additional computer

   gpg --import 6002450973C62F2FD9F8353101C4ECCB53ACCE05
   git clone ssh://git@gitlab.com/username/pws ~/.password-store
   

Compatible client list can be found at: https://www.passwordstore.org/ (including ones for Android and iOS)

Note: I will probably go with Bitwarden or KeepassXC instead because this one would not encrypt the paths to the passwords…

Get email alerts when a door is opened or closed.

Requirements: ESP8266 compatible board, a Reed switch, a magnet, some wires and a USB cable (and a computer).

Schematic: One side of the reed switch connected to the ground and the other side to Pin D1 of the D1-Mini board (Pin 5 for ESP8266) and a 10k Ohm pull-up resistor.

Instructions:

1. Install MicroPython on your ESP8266 board:

   • Connect board to your computer using a USB cable
   • Download MicroPython’s current firmware:

   • Install esptool:

     pip install --user esptool
     

   • Install ampy (Fedora):

     sudo dnf install ampy
     

   • Erase board’s flash:

     esptool.py --port /dev/ttyUSB0 erase_flash
     

   • Install new firmware:

     esptool.py --port /dev/ttyUSB0 --baud 460800 write_flash --flash_size=detect 0 esp8266-20xxxxxx-vx.x.x.bin
     

2. Setup webrpl

   picocom /dev/ttyUSB0 -b115200 -t "$(echo -ne '\r\nimport webrepl_setup\r\n')"
   press <e> and set your_password
   press <y> to reboot
   

3. Install alarm code (the code can be found below):

   • Setup the board to act as a Wi-Fi client at boot time (change SSID and wifi_password before uploading):

     ampy --port /dev/ttyUSB0 put boot.py
     

   • Install alarm code (change email and email_password):

     ampy --port /dev/ttyUSB0 put main.py
     

   • Reboot board to make changes effective:

     picocom /dev/ttyUSB0 -b115200 -t "$(echo -ne '\r\nimport machine\r\nmachine.reset()\r\n')"
     

boot.py (setup webrepl and Wi-Fi):

import gc
import webrepl
import network

# change the value of the 2 variables below
ssid = "your_SSID"
pwd  = "wifi_password"

webrepl.start()
gc.collect()
sta_if = network.WLAN(network.STA_IF)
ap_if  = network.WLAN(network.AP_IF)
ap_if.active(False)
if not sta_if.isconnected():
  print('Connecting to WiFi...')
  sta_if.active(True)
  sta_if.connect(ssid, pwd)
  while not sta_if.isconnected():
    pass$
print('network config:', sta_if.ifconfig()

main.py (credit):

import machine
from time import sleep
# Micropython
try:
  import usocket as socket
  import ussl as ssl

# Python3
except:
  import socket
  import ssl

try:
    switch = machine.Pin(5, machine.Pin.IN) # D1/GPIO5
except:
    print("s:e")
    switch = 0 # open

prevValue      = 0
doorOpenTimer  = 0
email_user     = "user@gmail.com"
email_pwd      = "my_password"
email_user_b64 = "xxxxxxxxxxxxxxxxxxxxxx=" # base64 encoded email    (echo -n 'user@gmail.com' | base64)
email_pwd_b64  = "xxxxxxxxxxxxxxxxxxxxxx=" # base64 encoded password (echo -n 'my_password' | base64)

def send_email(username, subject, body):
    msg = """To: {0}\r\nSubject: {1}

    {2}
    """
    msg = msg.format(username,subject,body)

    endmsg = "\r\n.\r\n"

    mailserver = "smtp.gmail.com"
    port = 587

    # Create socket called clientSocket and establish a TCP connection with mailserver
    clientSocket = socket.socket()
    clientSocket.connect(socket.getaddrinfo(mailserver, port)[0][-1])
    recv = clientSocket.recv(1024)
    print(recv)
    print(recv[:3])
    if recv[:3] != b'220':
        print('220 reply not received from server.')

    # Send HELO command and print server response.
    heloCommand = 'EHLO Alice\r\n'
    clientSocket.send(heloCommand.encode())
    recv1 = clientSocket.recv(1024)
    recvCount=recv1.decode().count('\n')
    print(recv1)
    if recv1[:3] != b'250':
        print('250 reply not received from server.')

    # Request an encrypted connection
    startTlsCommand = 'STARTTLS\r\n'
    clientSocket.send(startTlsCommand.encode())
    tls_recv = clientSocket.recv(1024)
    print(tls_recv)
    if tls_recv[:3] != b'220':
        print('220 reply not received from server')

    # Encrypt the socket
    ssl_clientSocket = ssl.wrap_socket(clientSocket)
    print("Secure socket created")

    heloCommand = 'EHLO Alice\r\n'
    ssl_clientSocket.write(heloCommand.encode())
    recv1=''
    for index in range(0,recvCount):
      recv1 = recv1+ssl_clientSocket.readline().decode()
    print(recv1)

    # Send the AUTH LOGIN command and print server response.
    authCommand = 'AUTH LOGIN\r\n'
    ssl_clientSocket.write(authCommand.encode())
    auth_recv = ssl_clientSocket.readline()
    print(auth_recv)
    if auth_recv[:3] != b'334':
        print('334 reply not received from server')

    print("Sending username / password")
    # Send username and print server response.
    uname = email_user_b64 # base64 encoded email
    pword = email_pwd_b64  # base64 encoded password
    print(str(uname))
    ssl_clientSocket.write(uname)
    ssl_clientSocket.write('\r\n'.encode())
    uname_recv = ssl_clientSocket.readline()
    print(uname_recv)
    if uname_recv[:3] != b'334':
        print('334 reply not received from server')
    print(str(pword))
    ssl_clientSocket.write(pword)
    ssl_clientSocket.write('\r\n'.encode())
    pword_recv = ssl_clientSocket.readline()

    print(pword_recv)
    if pword_recv[:3] != b'235':
        print('235 reply not received from server')

    # Send MAIL FROM command and print server response.
    mailFromCommand = 'MAIL FROM: <' + username + '>\r\n'
    ssl_clientSocket.write(mailFromCommand.encode())
    recv2 = ssl_clientSocket.readline()
    print(recv2)
    if recv2[:3] != b'250':
        print('250 reply not received from server.')

    # Send RCPT TO command and print server response.
    rcptToCommand = 'RCPT TO: <' + username + '>\r\n'
    ssl_clientSocket.write(rcptToCommand.encode())
    recv3 = ssl_clientSocket.readline()
    print(recv3)
    if recv3[:3] != b'250':
        print('250 reply not received from server.')

    # Send DATA command and print server response.
    dataCommand = 'DATA\r\n'
    ssl_clientSocket.write(dataCommand.encode())
    recv4 = ssl_clientSocket.readline()
    print(recv4)
    if recv4[:3] != b'354':
        print('354 reply not received from server.')

    # Send message data.
    ssl_clientSocket.write(msg.encode())

    # Message ends with a single period.
    ssl_clientSocket.write(endmsg.encode())
    recv5 = ssl_clientSocket.readline()
    print(recv5)
    if recv5[:3] != b'250':
        print('250 reply not received from server.')

    # Send QUIT command and get server response.
    quitCommand = 'QUIT\r\n'
    ssl_clientSocket.write(quitCommand.encode())
    recv6 = ssl_clientSocket.readline()
    print(recv6)
    if recv6[:3] != b'221':
        print('221 reply not received from server.')

    clientSocket.close()

while True:
    sleep(1)
    print("s.v.: " + str( switch.value() ) )
    if prevValue != switch.value():
        if switch.value() == 0: # door opened
            send_email(email_user, "Door Opened", prevValue)
        if switch.value() == 1: # door closed
            send_email(email_user, "Door Closed", prevValue)
        try:
            prevValue = switch.value()
        except:
            prevValue = -1

If the internet is not working in your Gnome Boxes/qemu virtual machine guest after replacing the firewalld service with the iptables.service in the host OS, it might be because the iptables rules relating to the virbr0 interface and the 192.168.122.0/24 network are missing.

Edit /etc/sysconfig/iptables

:~$ sudo vim /etc/sysconfig/iptables

Add the following lines before the line : -A INPUT -j REJECT –reject-with icmp-host-prohibited

-A INPUT -i virbr0 -p udp -m udp --dport 53 -j ACCEPT
-A INPUT -i virbr0 -p tcp -m tcp --dport 53 -j ACCEPT
-A INPUT -i virbr0 -p udp -m udp --dport 67 -j ACCEPT
-A INPUT -i virbr0 -p tcp -m tcp --dport 67 -j ACCEPT
-A FORWARD -d 192.168.122.0/24 -o virbr0 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
-A FORWARD -s 192.168.122.0/24 -i virbr0 -j ACCEPT
-A FORWARD -i virbr0 -o virbr0 -j ACCEPT
-A FORWARD -o virbr0 -j REJECT --reject-with icmp-port-unreachable
-A FORWARD -i virbr0 -j REJECT --reject-with icmp-port-unreachable
-A OUTPUT -o virbr0 -p udp -m udp --dport 68 -j ACCEPT
-A POSTROUTING -o virbr0 -p udp -m udp --dport 68 -j CHECKSUM --checksum-fill
-A POSTROUTING -s 192.168.122.0/24 -d 224.0.0.0/24 -j RETURN
-A POSTROUTING -s 192.168.122.0/24 -d 255.255.255.255/32 -j RETURN
-A POSTROUTING -s 192.168.122.0/24 ! -d 192.168.122.0/24 -p tcp -j MASQUERADE --to-ports 1024-65535
-A POSTROUTING -s 192.168.122.0/24 ! -d 192.168.122.0/24 -p udp -j MASQUERADE --to-ports 1024-65535
-A POSTROUTING -s 192.168.122.0/24 ! -d 192.168.122.0/24 -j MASQUERADE

Restart the iptables service

 :~$ sudo /bin/systemctl restart  iptables.service

DRAFT

TV Remote

1. Setup electronic; 1x 200ohm resistor, 1x 10k ohm resistor, 1x transistor (any NPN should work) and 1 Infrared LED (http://www.raspberry-pi-geek.com/Archive/2015/10/Raspberry-Pi-IR-remote)

   

2. Install and configure lirc

   sudo apt-get install lirc

   sudo nano /etc/modules

   # /etc/modules: kernel modules to load at boot time.
   #
   # This file contains the names of kernel modules that should be loaded
   # at boot time, one per line. Lines beginning with "#" are ignored.
   
   lirc_dev
   lirc_rpi gpio_out_pin=22
   

   sudo nano /etc/lirc/hardware.conf

   # /etc/lirc/hardware.conf
   #
   # Arguments which will be used when launching lircd
   LIRCD_ARGS="--uinput"
   
   #Don't start lircmd even if there seems to be a good config file
   #START_LIRCMD=false
   
   #Don't start irexec, even if a good config file seems to exist.
   #START_IREXEC=false
   
   #Try to load appropriate kernel modules
   LOAD_MODULES=true
   
   # Run "lircd --driver=help" for a list of supported drivers.
   DRIVER="default"
   # usually /dev/lirc0 is the correct setting for systems using udev
   DEVICE="/dev/lirc0"
   MODULES="lirc_rpi"
   
   # Default configuration files for your hardware if any
   LIRCD_CONF=""
   LIRCMD_CONF=""
   

   Create a configuration file for your remote (http://lirc-remotes.sourceforge.net/remotes-table.html). Here’s mine for a Sharp Aquos TV:

   # brand:                       Sharp
   # model no. of remote control: GA840WJSA
   # devices being controlled by this remote: Sharp Aquos LED TV
   #
   
   begin remote
   
       name  Sharp
       bits           15
       flags SPACE_ENC|CONST_LENGTH
       eps            30
       aeps          100
   
       one           320  1750
       zero          320   700
       ptrail        321
       gap          64241
       toggle_bit_mask 0x0
       toggle_mask    0x3FF
       min_repeat    2
   
       begin codes
           KEY_POWER                0x41A2
           KEY_DISPLAY              0x4362
           KEY_POWER_SOURCE         0x460E
           KEY_REWIND               0x448E
           KEY_PLAY                 0x450E
           KEY_FASTFORWARD          0x468E
           KEY_PAUSE                0x46CE
           KEY_PREV_CHAPTER         0x44CE
           KEY_STOP                 0x470E
           KEY_NEXT_CHAPTER         0x474E
           KEY_RECORD               0x458E
           KEY_OPTION               0x444E
           KEY_SLEEP                0x4162
           KEY_POWER_SAVING         0x47B2
           KEY_REC_STOP             0x478E
           KEY_1                    0x4202
           KEY_2                    0x4102
           KEY_3                    0x4302
           KEY_4                    0x4082
           KEY_5                    0x4282
           KEY_6                    0x4182
           KEY_7                    0x4382
           KEY_8                    0x4042
           KEY_9                    0x4242
           KEY_DOT                  0x4572
           KEY_0                    0x4142
           KEY_ENT                  0x4342
           KEY_CC                   0x40B2
           KEY_AV_MODE              0x407E
           KEY_VIEW_MODE            0x4016
           KEY_FLASHBACK            0x43D2
           KEY_MUTE                 0x43A2
           KEY_VOLUMEUP             0x40A2
           KEY_VOLUMEDOWN           0x42A2
           KEY_CHANNELUP            0x4222
           KEY_CHANNELDOWN          0x4122
           KEY_INPUT                0x4322
           KEY_AQUOS_NET            0x4726
           KEY_MENU                 0x4012
           KEY_DOCK                 0x475A
           KEY_UP                   0x43AA
           KEY_LEFT                 0x42BE
           KEY_ENTER                0x43BE
           KEY_RIGHT                0x41BE
           KEY_DOWN                 0x406A
           KEY_EXIT                 0x433E
           KEY_RETURN               0x40BE
           KEY_FAVORITE             0x47C6
           KEY_SURROUND             0x41DA
           KEY_AUDIO                0x4062
           KEY_FREEZE               0x432A
           KEY_RED                  0x4236
           KEY_GREEN                0x42C9
           KEY_YELLOW               0x4336
           KEY_BLUE                 0x40B6
   
       end codes
   
   end remote
   

3. Reboot and start lircd

   sudo reboot
   sudo lircd --device /dev/lirc0
   

4. Test lircd, send number 1

   irsend SEND_ONCE Sharp key_1
   

5. Setup uwsgi server (https://www.digitalocean.com/community/tutorials/how-to-serve-flask-applications-with-uwsgi-and-nginx-on-ubuntu-14-04)

   sudo apt-get update
   sudo apt-get install python-pip python-dev
   sudo pip install virtualenv
   mkdir ~/tvremote
   cd ~/tvremote
   virtualenv tvremoteenv
   source tvremoteenv/bin/activate
   pip install uwsgi flask
   

6. Install Static files

   extract this archive into your home directory ~/tvremote.

7. Create and start uwsgi service (https://blog.frd.mn/how-to-set-up-proper-startstop-services-ubuntu-debian-mac-windows/)

   sudo cp ~/tvremote/uwsgi /etc/init.d/
   sudo update-rc.d uwsgi defaults
   sudo service uwsgi start
   

8. Ready to test, point browser to your RPi’s IP address

   http://192.168.2.51:8080/index.html
   

• Bowline Knot
• Truckers hitch Knot
• Half Hitch Knot
• Uni-Knot

Stream Youtube to RaspberryPi From Remote Computer Using Omxplayer

~/$ omxplayer -b `/usr/local/bin/youtube-dl -g https://www.youtube.com/watch?v=ID`

• Install and setup IP Webcam on Android phone(s), change settings, start server and turn off the screen to help prevent overheating (removing the back cover also helps) and for conserving power, even if it is plugged in.
• Install motion software on the Linux computer (sudo apt-get install motion if using Ubuntu) and set it up (edit /etc/motion/motion.conf)
  • ffmpeg_cap_new off # to only capture images
  • netcam_url http://phone-ip-address:8080/video
  • netcam_userpass login:password # if any
• Install and setup mutt for sending emails from Linux computer
• Install inotify-tools on the Linux computer (for monitoring the creation of new image files)

• Create a Bash script for monitoring motion’s temporary directory for new files (You should change my@email.com for your email but the default MONITORDIR directory should be fine)

  #!/bin/sh
  MONITORDIR="/tmp/motion/"
  inotifywait -m -r -e create --format '%w%f' "${MONITORDIR}" | while read NEWFILE
  
  timestamp() {
    date +"%T"
  }
  
  do
  echo "File ${NEWFILE} is attached.\r\n" | mutt -s "Motion detected @ $(timestamp)" my@email.com -a ${NEWFILE}
  done
  

• Start motion software on Linux computer

• Start the Bash script on the Linux computer for monitoring for new image files in /tmp/motion/ and automatically emailing them to you.

You should now be getting 1 email per image captured when motion is detected.

I changed the camera resolution to 1280x720 and the motion config setting “treshold” to 750, to increase sensitivity.

Count video frames using melt:

~/$ melt video.mp4 -consumer xml | grep length

Using transcode:

transcode -J stabilize –mplayer_probe -i yourmovie.avi
transcode -J transform –mplayer_probe -i yourmovie.ext -y raw -o yourstabilizedmovie.ext

1. Microwave humidified dirt mix to sterilize it and let it cool down
2. Using a sharpie, identify Ziplock bags with palm type, date, etc…
3. Add humid dirt to Ziploc bags (not too wet or the seeds will rot)
4. Add seeds to bags
   • For queen palm seeds, I have had better luck so far with orange seeds that just fell off the tree (as opposed to green seeds that I cut off the tree).
5. Set the bags on a shelf at room temperature (they don’t need light)
6. Wait from 1 to 6 months (no need to add water if you keep Ziplock bags sealed)
7. Transplant germinated seeds to pots

The sprouted seeds should look similar to this:

Source: Germinating Palm Seeds

Using Ghostscript to combine PDF files

gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite -dPDFSETTINGS=/prepress -sOutputFile=out.pdf in1.pdf in2.pdf in3*.pdf

The prepress option is used to preserve higher quality (high quality, color preserving, 300 dpi imgs).

Block Google, completely

1. Find Google IP addresses ranges

   Go to https://whois.arin.net/ui/advanced.jsp and Search for “Google LLC”, by Organization… Click each organization found and then select “Related Networks”.

2. It gave me this list:

   GOOGLE-CLOUD (NET-104-154-0-0-1)    104.154.0.0 - 104.155.255.255
   GOOGLE-CLOUD (NET-35-208-0-0-1)     35.208.0.0 - 35.247.255.255
   GOOGLE-CLOUD (NET-35-192-0-0-1)     35.192.0.0 - 35.207.255.255
   MEEBO (NET6-2620-84-1)  2620:84:: - 2620:84:1:FFFF:FFFF:FFFF:FFFF:FFFF
   GOOGLE-CLOUD (NET-173-255-112-0-1)  173.255.112.0 - 173.255.127.255
   GOOGLE-CLOUD (NET-104-196-0-0-1)    104.196.0.0 - 104.199.255.255
   GOOGLE-CLOUD (NET-192-158-28-0-1)   192.158.28.0 - 192.158.31.255
   GOOGLE-CLOUD (NET-199-192-112-0-1)  199.192.112.0 - 199.192.115.255
   GOOGLE-CLOUD (NET6-2600-1900-1)     2600:1900:: - 2600:190F:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF
   GOOGLE-CLOUD (NET-162-222-176-0-1)  162.222.176.0 - 162.222.183.255
   GOOGLE-CLOUD (NET-107-167-160-0-1)  107.167.160.0 - 107.167.191.255
   GOOGLE-CLOUD (NET-107-178-192-0-1)  107.178.192.0 - 107.178.255.255
   GOOGLE-CLOUD (NET-108-59-80-0-1)    108.59.80.0 - 108.59.95.255
   GOOGLE-CLOUD (NET-130-211-0-0-1)    130.211.0.0 - 130.211.255.255
   GOOGLE-CLOUD (NET-146-148-0-0-1)    146.148.0.0 - 146.148.127.255
   GOOGLE-CLOUD (NET-162-216-148-0-1)  162.216.148.0 - 162.216.151.255
   GOOGLE-CLOUD (NET-199-223-232-0-1)  199.223.232.0 - 199.223.239.255
   GOOGLE-CLOUD (NET-23-251-128-0-1)   23.251.128.0 - 23.251.159.255
   GOOGLE-CLOUD (NET-23-236-48-0-1)    23.236.48.0 - 23.236.63.255
   LVLT-GOOGL-2-8-35-200 (NET-8-35-200-0-1)    8.35.200.0 - 8.35.207.255
   LVLT-GOOGL-2-8-34-216 (NET-8-34-216-0-1)    8.34.216.0 - 8.34.223.255
   LVLT-GOOGL-2-8-34-208 (NET-8-34-208-0-1)    8.34.208.0 - 8.34.215.255
   LVLT-GOOGL-2-8-35-192 (NET-8-35-192-0-1)    8.35.192.0 - 8.35.199.255
   GOOGLE-CLOUD (NET-35-184-0-0-1)     35.184.0.0 - 35.191.255.255
   GOOGLE-CLOUD (NET6-2602-FF11-1)     2602:FF11:: - 2602:FF11:FFF:FFFF:FFFF:FFFF:FFFF:FFFF
   GOOGLE-CLOUD (NET6-2600-2D00-1)     2600:2D00:: - 2600:2D0F:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF
   GOOGLE-CORP-74-125-116-0 (NET-74-125-116-0-1)   74.125.116.0 - 74.125.119.255
   GOOGLE-CORP-74-125-120-0 (NET-74-125-120-0-1)   74.125.120.0 - 74.125.123.255
   GOOGLE-CORP-216-239-35-0 (NET-216-239-35-0-1)   216.239.35.0 - 216.239.35.255
   GOOGLE-CORP (NET-104-132-0-0-1)     104.132.0.0 - 104.135.255.255
   GOOGLE-CORP-74-125-56-0 (NET-74-125-56-0-1)     74.125.56.0 - 74.125.63.255
   GOOGLE-CORP-72-14-224-0 (NET-72-14-224-0-1)     72.14.224.0 - 72.14.231.255
   GOOGLE-CORP-66-249-86-0 (NET-66-249-86-0-1)     66.249.86.0 - 66.249.87.255
   GOOGLE-CORP-66-102-14-0 (NET-66-102-14-0-1)     66.102.14.0 - 66.102.14.255
   GOOGLE-CORP-216-239-39-0 (NET-216-239-39-0-1)   216.239.39.0 - 216.239.39.255
   GOOGLE-CORP-216-239-44-0 (NET-216-239-44-0-1)   216.239.44.0 - 216.239.45.255
   GOOGLE-CORP-216-239-33-0 (NET-216-239-33-0-1)   216.239.33.0 - 216.239.33.255
   GOOGLE-CORP-216-239-55-0 (NET-216-239-55-0-1)   216.239.55.0 - 216.239.55.255
   GOOGLE-CORP-72-14-241-0 (NET-72-14-241-0-1)     72.14.241.0 - 72.14.241.255
   GOOGLE-CORP-V6 (NET6-2620-15C-1)    2620:15C:: - 2620:15C:FFF:FFFF:FFFF:FFFF:FFFF:FFFF
   GOOGLE-IT-IPV6 (NET6-2620-1000-1)   2620:0:1000:: - 2620:0:10FF:FFFF:FFFF:FFFF:FFFF:FFFF
   GOOGLE-TATAC (NET-63-243-224-0-1)   63.243.224.0 - 63.243.224.63
   GOOGLE-TATAC (NET6-2001-5A0-4400-1)     2001:5A0:4400:: - 2001:5A0:4400:FFFF:FFFF:FFFF:FFFF:FFFF
   GOOGLE-VPN (NET-172-102-8-0-1)  172.102.8.0 - 172.102.15.255
   GOOGLE-VPN (NET6-2605-EF80-1)   2605:EF80:: - 2605:EF80:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF
   GOOGLE-VPN (NET-192-104-160-0-1)    192.104.160.0 - 192.104.161.255
   GOOGLE-VPN (NET-216-252-220-0-1)    216.252.220.0 - 216.252.223.255
   GOOGLE-VPN (NET-209-107-176-0-1)    209.107.176.0 - 209.107.191.255
   UU-65-216-183 (NET-65-216-183-0-1)  65.216.183.0 - 65.216.183.255
   UU-63-88-22 (NET-63-88-22-0-1)  63.88.22.0 - 63.88.23.255
   UU-65-220-13 (NET-65-220-13-0-1)    65.220.13.0 - 65.220.13.255
   UU-65-202-192 (NET-65-202-192-0-1)  65.202.192.0 - 65.202.192.255
   UU-65-196-120 (NET-65-196-120-0-1)  65.196.120.0 - 65.196.121.255
   GOOGLE (NET-199-89-220-0-1)     199.89.220.0 - 199.89.220.255
   GOOGLE (NET6-2620-E7-C000-1)    2620:E7:C000:: - 2620:E7:C000:FFFF:FFFF:FFFF:FFFF:FFFF
   Q1208-63-226-245-56 (NET-63-226-245-56-1)   63.226.245.56 - 63.226.245.63
   GOOGLE (NET6-2620-E7-4000-1)    2620:E7:4000:: - 2620:E7:4000:FFFF:FFFF:FFFF:FFFF:FFFF
   GOOGLE (NET-199-88-130-0-1)     199.88.130.0 - 199.88.130.255
   SAVV-S232078-3 (NET-209-185-108-128-1)  209.185.108.128 - 209.185.108.255
   Q0702-63-158-137-224 (NET-63-158-137-224-1)     63.158.137.224 - 63.158.137.231
   Q0708-63-237-119-112 (NET-63-237-119-112-1)     63.237.119.112 - 63.237.119.119
   Q0708-208-46-199-160 (NET-208-46-199-160-1)     208.46.199.160 - 208.46.199.167
   Q0807-67-148-177-136 (NET-67-148-177-136-1)     67.148.177.136 - 67.148.177.143
   GOOGLE (NET-216-239-32-0-1)     216.239.32.0 - 216.239.63.255
   EC12-1-GOOGLE (NET-64-68-80-0-1)    64.68.80.0 - 64.68.87.255
   GOOGLE (NET-66-102-0-0-1)   66.102.0.0 - 66.102.15.255
   GOOGLE (NET-108-177-0-0-1)  108.177.0.0 - 108.177.127.255
   MICH-6184 (NET-198-108-100-192-1)   198.108.100.192 - 198.108.100.207
   SAVV-S232078-1 (NET-216-33-229-144-1)   216.33.229.144 - 216.33.229.151
   SAVV-S232078-2 (NET-216-33-229-160-1)   216.33.229.160 - 216.33.229.167
   SAVV-S232078-26 (NET-64-68-88-0-1)  64.68.88.0 - 64.68.95.255
   SAVV-S232078-11 (NET-216-109-75-80-1)   216.109.75.80 - 216.109.75.95
   SAVV-S232078-24 (NET-64-68-64-64-1)     64.68.64.64 - 64.68.64.127
   SAVV-S232078-21 (NET-64-41-221-192-1)   64.41.221.192 - 64.41.221.207
   MEEBO (NET-199-36-152-0-1)  199.36.152.0 - 199.36.159.255
   GOOGLE (NET-142-250-0-0-1)  142.250.0.0 - 142.251.255.255
   GOOGLE-I83-80 (NET-12-216-80-0-1)   12.216.80.0 - 12.216.80.255
   GOOGLE (NET-216-58-192-0-1)     216.58.192.0 - 216.58.223.255
   GOOGLE (NET-172-217-0-0-1)  172.217.0.0 - 172.217.255.255
   Q0312-2001-0428-6402-0204-0000-0000-0000-0000 (NET6-2001-428-6402-204-1)    2001:428:6402:204:: - 2001:428:6402:204:FFFF:FFFF:FFFF:FFFF
   LVLT-GOGL-8-8-4 (NET-8-8-4-0-1)     8.8.4.0 - 8.8.4.255
   LVLT-GOGL-4-3-2 (NET-4-3-2-0-1)     4.3.2.0 - 4.3.2.255
   LVLT-GOGL-8-8-8 (NET-8-8-8-0-1)     8.8.8.0 - 8.8.8.255
   MEEBO1 (NET-208-81-188-0-1)     208.81.188.0 - 208.81.191.255
   GOOGLE (NET-74-114-24-0-1)  74.114.24.0 - 74.114.31.255
   NET-209-141-120-128-GOOGLE-26 (NET-209-141-120-128-1)   209.141.120.128 - 209.141.120.191
   NET-2605-5800-0-9-DC-64 (NET6-2605-5800-0-9-1)  2605:5800:0:9:: - 2605:5800:0:9:FFFF:FFFF:FFFF:FFFF
   GOOGLE-IPV6 (NET6-2001-4860-1)  2001:4860:: - 2001:4860:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF
   GOOGLE-IPV6 (NET6-2607-F8B0-1)  2607:F8B0:: - 2607:F8B0:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF
   GOOGLE (NET-108-170-192-0-1)    108.170.192.0 - 108.170.255.255
   GOOGLE (NET-172-253-0-0-1)  172.253.0.0 - 172.253.255.255
   GOOGLE (NET-173-194-0-0-1)  173.194.0.0 - 173.194.255.255
   GOOGLE (NET-192-178-0-0-1)  192.178.0.0 - 192.179.255.255
   GOOGLE (NET-207-223-160-0-1)    207.223.160.0 - 207.223.175.255
   GOOGLE (NET-209-85-128-0-1)     209.85.128.0 - 209.85.255.255
   GOOGLE (NET-64-233-160-0-1)     64.233.160.0 - 64.233.191.255
   GOOGLE (NET-66-249-64-0-1)  66.249.64.0 - 66.249.95.255
   GOOGLE (NET-70-32-128-0-1)  70.32.128.0 - 70.32.159.255
   GOOGLE (NET-72-14-192-0-1)  72.14.192.0 - 72.14.255.255
   GOOGLE (NET-74-125-0-0-1)   74.125.0.0 - 74.125.255.255
   METAWEB-001 (NET-208-68-108-0-1)    208.68.108.0 - 208.68.111.255
   NET-209-141-121-192-GOOGLE-26 (NET-209-141-121-192-1)   209.141.121.192 - 209.141.121.255
   NET-209-141-121-128-GOOGLE-26 (NET-209-141-121-128-1)   209.141.121.128 - 209.141.121.191
   NET-2605-5800-0-20-64 (NET6-2605-5800-0-20-1)   2605:5800:0:20:: - 2605:5800:0:20:FFFF:FFFF:FFFF:FFFF
   NET-2605-5800-0-21-64 (NET6-2605-5800-0-21-1)   2605:5800:0:21:: - 2605:5800:0:21:FFFF:FFFF:FFFF:FFFF
   GOOGLE-IPV6 (NET6-2604-31C0-1)  2604:31C0:: - 2604:31C0:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF
   GL-654 (NET-136-22-6-0-1)   136.22.6.0 - 136.22.7.255
   

3. Next create an iptables/ip6tables script similar to this but with all the IP ranges from above:

   #!/bin/sh  
   # /etc/init.d/firewall
   
   IPT="/sbin/iptables"  
   IPT6="/sbin/ip6tables"  
   
   # Block Google
   $IPT -A INPUT -s 64.233.160.0/19 -j DROP  
   $IPT -A OUTPUT -d 64.233.160.0/19 -j DROP
   $IPT -A INPUT -s 2c0f:fb50:4000::/36 -j DROP
   $IPT -A OUTPUT -d 2c0f:fb50:4000::/36 -j DROP
   

GPG defaults to exporting to a binary format, the –armor command line argument can to be used for exporting to ASCII format for easy sharing using copy & paste.

~$ gpg --output my-public-key.gpg --armor --export one@email.com

Problem:

[2015/02/27 00:23:41] minidlna.c:955: error: Unable to set db_path [/var/cache/minidlna] ownership to 1000: Operation not permitted
[2015/02/27 00:23:41] minidlna.c:960: fatal: Failed to switch to uid '1000'. [Operation not permitted] EXITING.
[2015/02/27 00:27:25] minidlna.c:452: warn: Unable to change pidfile ownership
[2015/02/27 00:27:25] minidlna.c:960: fatal: Failed to switch to uid '1000'. [Operation not permitted] EXITING.

Solution:

$ chown -R myuser /var/cache/minidlna
$ chgrp -R myuser /var/cache/minidlna
$ vi /etc/default/minidlna
     add line: USER="myuser"
$ vi /etc/minidlna.conf
     change line: user=minidlna for user=myuser
     add line: media_dir=/home/myuser/media/

After issuing a command like xrandr –output LVDS1 –off, you can switch to a console (--), edit /home/user/.kde/share/apps/kscreen/filename (where filename is the one from that directory that was last modified) and change “enabled” : false to “enabled” : true.

[ { "enabled" : false, "id" : "LVDS1", "metadata" : { "name" : "LVDS1" }, "mode" : { "refresh" : 60, "size" : { "height" : 768, "width" : 1366 } }, "pos" : { "x" : 1280, "y" : 128 }, "primary" : false, "rotation" : 1 }, { "enabled" : false, "id" : "thisid", "metadata" : { "fullname" : "thisname", "name" : "VGA1" }, "mode" : { "refresh" : 60, "size" : { "height" : 1024, "width" : 1280 } }, "pos" : { "x" : 0, "y" : 0 }, "primary" : true, "rotation" : 1 } ]

In this example, use monitor VGA1 / monitor #0 and set it’s brightness:

export SDL_VIDEO_FULLSCREEN_HEAD=0
export SDL_VIDEO_FULLSCREEN_DISPLAY=0
xrandr --output VGA1 --gamma 2:2:2

Another way to set the monitor that will be used by a game (steam games for example) is to edit ~/.config/monitors.xml and change the primary monitor to the one the game should start in.

<primary>no</primary>;
<primary>yes</primary>;

Note: a restart was required for the change to take effect.

IPTABLES: Open Firewall Ports for Serving Files Using DLNA/UPnP

iptables -A INPUT -s 192.168.1.0/24 -p tcp -m tcp --dport 8200 -j ACCEPT
iptables -A INPUT -s 192.168.1.0/24 -p udp -m udp --dport 1900 -j ACCEPT

By converting the movie’s video to Xvid and it’s audio to ac3 using avconv, I have found that it plays nicely on my Vizio TV. The libav-tools package and the mkv library needed to be installed first on my system (Ubuntu). Also avconv’s default video encoding quality is too low, hence the -b:v 1500k option.

sudo apt-get install libav-tools libmkv0
avconv -i input.mkv -vcodec mpeg4 -vtag xvid -b:v 1500k -c:a ac3 output.avi

Using this template, you can order 6 passport pictures printed on one 4×6 photo for about $0.20 (only one needed per application). Download the JPG or Gimp’s XCF.

Using ImageMagick’s convert utility, it can be done easily:

1) Reverse order of layers (page one is bottom layer)

2) Save as .mng (Multiple Network Graphic files – an animated image file format)

3) On command line, ‘convert file.mng file.pdf’

Source

Note: That will only programs the lock/unlock/panic buttons. You will still need to get the immobilizer chip programmed at the dealer to be able to start the car.

Source

The host xbian.brantje.com has been replaced with apt.xbian.org… so if you get the following error:

Err http://xbian.brantje.com stable/main Translation-en    
  Something wicked happened resolving 'xbian.brantje.com:http' (-5 - No address associated with hostname)

You need to edit /etc/apt/sources.lst so that it looks like this:

deb http://mirrordirector.raspbian.org/raspbian/ wheezy main contrib non-free rpi
deb mirror://apt.xbian.org/mirror.txt stable main

Also see the FAQ at http://www.xbian.org/faq/.

Below you can find instructions on how to add an action to the right-click context menu in Dolphin file manager for stripping one or multiple .JPG files from their Exif information.

First, find out where the new config file should be located:

$ kde4-config -path services
/home/user1/.kde/share/kde4/services/:/usr/share/kde4/services/

I chose to add it only for the current user:

$ vi /home/user1/.kde/share/kde4/services/strip_exif.desktop 

[Desktop Entry]
Type=Service
Name=convert
ServiceTypes=KonqPopupMenu/Plugin
Actions=Strip;
MimeType=image/jpeg;

[Desktop Action Strip]
Name=StripEXIF
Exec=convert -strip %f 'basename "%f" .JPG'_stripped.JPG
Icon=/usr/share/icons/Humanity/places/24/user-pictures.svg

It will not overwrite the picture, it will append _stripped to the filename. Just restart Dolphin for the changes to take effect.

Source and some reference.

Bonus: Here is a .desktop file for resizing one or multiples files to 1024×768:

$ vi /home/user1/.kde/share/kde4/services/resize_1024.desktop 

[Desktop Entry]
Type=Service
Name=convert
ServiceTypes=KonqPopupMenu/Plugin
Actions=Resize1024;
MimeType=image/jpeg;

[Desktop Action Resize1024]
Name=Resize1024
Exec=convert -resize 1024x768 %f 'basename "%f" .JPG'_1024x768.jpg
Icon=/usr/share/icons/Humanity/places/24/user-pictures.svg

wget -q -O - http://192.168.0.10/DCIM/100OLYMP | awk -F\" '/wlansd\[[0-9]/ {print "http://192.168.0.10" $2}' | sed -E 's/.*JPG|MOV|AVI.+/\1/' | sed 's/,/\//' | xargs wget

via SOLVED using terminal: Olympus Compact Camera Talk Forum: Digital Photography Review.

Kubuntu’s GUI printer configuration application ignores the queue name when setting up an LPR/LPD printer… If the router uses the default IP address, the address of the printer should be set to lpd://192.168.2.1/LPRServer but it is being set at lpd://192.168.2.1 (missing the queue name).

“Anonymize” and remove way-points (only keep ordered track points) from Windows-Phone-8 OSM-Logger .gpx GPS traces using a Perl script:

#!/usr/bin/perl
use strict;
use warnings;
use 5.010;
use File::Slurp;

die "Usage: $0 [FILENAME.gpx]\n" if @ARGV < 1;
my $text = read_file($ARGV[0]);
$text =~ s/<name>.*?<\/name>/<name>name<\/name>/g;
$text =~ s/<desc>.*?<\/desc>/<desc>desc<\/desc>/g;
$text =~ s/<email .*? \/>/<email id="none" domain="test.com" \/>/g;
$text =~ s/<time>.*?<\/time>/<time>2000-01-01T00:00:00Z<\/time>/g;
$text =~ s/<wpt.*<\/wpt>//sg;
write_file( $ARGV[0], $text );

• Electronic firing
• Metal Storm
• Voere VEC-91 or Voere VEC-91 or Voere VEC-91 (ATF)
• Caseless ammunition

I used the running bowline knot (slip knot) and a buntline hitch knot:

If your energy saving’s power button action setting for “When power button is pressed” in AC Power and Battery Power is being ignored, you can comment two lines in /etc/acpi/acpi_handler.sh to fix this issue:

Comment:

#      power) /sbin/init 0
#         ;;

Commented out /etc/acpi/acpi_handler.sh:

#!/bin/sh
# Default acpi script that takes an entry for all actions

IFS=${IFS}/
set $@

case "$1" in
  button)
    case "$2" in
#      power) /sbin/init 0
#         ;;
      *) logger "ACPI action $2 is not defined"
         ;;
    esac
    ;;
  *)
    logger "ACPI group $1 / action $2 is not defined"
    ;;
esac

No reboot necessary, it should be fixed instantly.

Krita is a KDE program for sketching and painting, offering an end–to–end solution for creating digital painting files from scratch by masters. Fields of painting that Krita explicitly supports are concept art, creation of comics and textures for rendering. Modelled on existing real-world painting materials and workflows, Krita supports creative working by getting out of the way and with a snappy response.

via Frequently Asked Questions

Assuming the server is using the LightDM display manager and no users are logged in:

Run from server:

sudo /usr/bin/x11vnc -auth /var/run/lightdm/root/:0 -display :0

Run from client:

ssh -f -L 5900:localhost:5900 SERVERHOSTNAME -N -p 22
vinagre 127.0.0.1:5900

Perl script:

#!/usr/bin/env perl  
use strict;  
use warnings;  
use File::Slurp;  
use Try::Tiny;  

# Set the random seed  
srand (time ^ $$ ^ unpack "%L*", 'ps axww | gzip');  

unless ( @ARGV == 1 ) {  
  print "\nUsage: $0 filename > newfilename\n\n";  
  exit;  
}  

try {  
  my @lines = read_file( $ARGV[0] );  
  # Get random lines, write 'em out, mark 'em done.  
  while ( @lines ) {  
    my $line = splice(@lines, rand @lines, 1);  
    print $line;  
  }  
} catch { warn "*** $_"; };

1. Copy ‘/home/xbian/.xbmc/userdata/Database/MyVideos75.db’ from the XBMC machine to your local computer.

2. Open with SQLite3:

   :~$ sqlite3 MyVideos75.db
   

3. Select rows that have have a play count of more then 1 time:

   SELECT strFilename FROM files WHERE playCount > 0;
   

Use the following script:

#!/bin/bash

## XBMC: Remotely Start Playing a Media File From the Command Line Using the JSON API

## Configure your XBMC RPC details here
XBMC_HOST=192.168.1.10
XBMC_PORT=8080
XBMC_USER=xbmc
XBMC_PASS=xbmc

# You should not have to touch anything below
ID=$1
if [ "$ID" == " ];
then
  echo "Syntax $0 </full/path/file.[mp4|mp3|etc]>"
  exit
fi

function xbmc_req {
  curl -s -i -X POST --header "Content-Type: application/json" -d "$1" http://$XBMC_USER:$XBMC_PASS@$XBMC_HOST:$XBMC_PORT/jsonrpc >/dev/null
}

echo -n "Opening video id $ID on $XBMC_HOST ..."
xbmc_req '{"jsonrpc": "2.0", "method": "Playlist.Clear", "params":{"playlistid":1}, "id": 1}';
xbmc_req '{"jsonrpc": "2.0", "method": "Playlist.Add", "params":{"playlistid":1, "item" :{ "file" : "'$ID'"}}, "id" : 1}';
xbmc_req '{"jsonrpc": "2.0", "method": "Player.Open", "params":{"item":{"playlistid":1, "position" : 0}}, "id": 1}';
echo " done."

thanks to this post, which it was based on.

ALTER TABLE YourTable RENAME TO OldTable;
CREATE TABLE YourTable (/* old cols with new requirements */);
INSERT INTO YourTable SELECT * FROM OldTable;
DROP TABLE OldTable;
VACUUM;
.q

Source

From the command line:

sudo apt-get install exo-utils  
exo-preferred-applications

In the window that opens, click on Utilities and change it in the File Manager section.

source

Betteridge’s law of headlines is an adage that states: “Any headline which ends in a question mark can be answered by the word no.” It is named after Ian Betteridge, a British technology journalist, although the general concept is much older. The observation has also been called “Davis’ law” or just the “journalistic principle”.

via Betteridge’s law of headlines - Wikipedia, the free encyclopedia

via Francois Gissy hits 285 km/h on his rocket-powered bicycle

“In effect, the cyclist’s pedaling is a bit harder during easy stretches and easier during intense stretches, such as sustained ascents, making for a smoother, more uniform effort. A regenerative brake replaces the bike’s standard rear brake, adding another form of energy generation.”

Bike+ light hybrid system unplugs the e-bike for a Prius-like ride

via Bike+ light hybrid system unplugs the e-bike for a Prius-like ride

Key 3D printing patent:

Apparatus and method for producing parts with multi-directional powder delivery: Google or USPTO

Method and apparatus for producing parts by selective sintering patent: Google or USPTO

Discussion

Article

rsync.net Warrant Canary

via http://www.rsync.net/resources/notices/canary.txt

[Abstract]

via 3ders.org – ‘3-Sweep’ software can create 3D models from a single photo (video) | 3D Printer News & 3D Printing News.

MP3

$ sudo apt-get install faad lame
$ faad --stdio INPUT.m4b | lame --preset standard - OUTPUT.mp3

OGG

$ sudo apt-get install faad vorbis-tools
$ faad --stdio INPUT.m4b | oggenc -Q -q6 - -o OUTPUT.ogg

Thanks to https://www.linuxquestions.org/questions/linux-software-2/convert-m4b-to-mp3-batch-682854/ and http://robert.penz.name/94/convert-m4b-to-ogg-on-linux/

ワークショップ用羽ばたき機3Dプリントパーツ入荷 via Amazing flight of a 3D printed rubber band powered ornithopter.

Alternative Internet (Source, which is probably more up-to-date)

A – B – C – D – E – F – G – H – I – J – K – L – M – N – O – P – Q – R – S – T – U – V – W – X – Y – Z

A

AnoNet

AnoNet is a decentralized friend-to-friend network built using VPNs and software BGP routers. anoNet works by making it difficult to learn the identities of others on the network allowing them to anonymously host IPv4 and IPv6 services)

B

BitPhone

BitPhone is a mobile communications device with the features of a modern smartphone built on top of decentralized BitCoin-style proof-of-work networking.

BitMessage

BitMessage is a P2P communications protocol used to send encrypted messages to another person or to many subscribers. It is decentralized and trustless, meaning that you need-not inherently trust any entities like root certificate authorities. See whitepaper

Books

Books are a stable, production tested communication protocol suitable for a wide range of information services.

buddycloud

buddycloud is a set of tools, open source software and protocols to help you build a distributed social network. All the code is on GitHub.

C

Camlistore

Camlistore is your personal storage system for life. It is an acronym for “Content-Addressable Multi-Layer Indexed Storage” and could be described as “Like git for all content in your life”

Commotion Wireless

Commotion Wireless is an open-source communication tool that uses mobile phones, computers, and other wireless devices to create decentralized mesh networks.

Cryptosphere

The Cryptosphere is a global peer-to-peer cryptosystem for publishing and securely distributing both data and HTML5/JS applications pseudonymously with no central point of failure. It’s built on top of the next-generation Networking and Cryptography (NaCl) library and the Git data model.

CryptAByte

CryptAByte CryptAByte.com is a free online drop box that enables secure (encrypted) message and file sharing over the web using a public-key infrastructure. Messages and files are encrypted using a public key and can only be decrypted using the passphrase entered when your key is created. Your data is never stored in plaintext, and is impossible to decrypt without your passphrase.

D

Diaspora*

Diaspora* is a free social network consisting of personal web server that implements a distributed social networking service. Diaspora* is a fun and creative community that puts you in control.

DeadC

DeadC Create a one-click expiring link

Drogulus

The Drogulus (WIP) is a programmable peer-to-peer data store. It’s an open, federated and decentralised system where the identity of users and provenance of data is ensured by cryptographically signing digital assets. Redecentralise Video interview

E

eDonkey network (eD2k)

eDonkey network is a decentralized, mostly server-based, peer-to-peer file sharing network best suited to share big files among users, and to provide long term availability of files

F

Firecloud

Firecloud is a P2P web publishing platform in your using Persona and WebRTC to work its magic.

Freenet

Freenet is free software which lets you anonymously share files, browse and publish “freesites” (web sites accessible only through Freenet) and chat on forums, without fear of censorship. Freenet is decentralised to make it less vulnerable to attack, and if used in “darknet” mode, where users only connect to their friends, is very difficult to detect.

Freifunk

Freifunk is a non-commercial initiative for free decentraliced wireless mesh networks. Technically Freifunk firmwares are based on OpenWRT and OLSR or B.A.T.M.A.N.

G

GNUnet

GNUnet is GNU’s framework for secure peer-to-peer networking that does not use any centralized or otherwise trusted services.

Grimwire

Grimwire is a browser OS which uses Web Workers for process isolation, and WebRTC for peer-to-peer communication.

Guifi

Guifi is a european (especially spanish) large network with over 22000 active nodes. Uses wifi in both infrastructure and mesh mode. Over 25km of fiber as well so far.

H

I

I2P

I2P is an anonymizing network, offering a simple layer that identity-sensitive applications can use to securely communicate. All data is wrapped with several layers of encryption, and the network is both distributed and dynamic, with no trusted parties.

J

K

Kademlia

Kademlia is a distributed hash table for decentralized peer-to-peer computer networks

Kune

Kune is based on Apache Wave and is a free/open source distributed social network focused on collaboration rather than just on communication.2 That is, it focuses on online real-time collaborative editing, decentralized social networking and web publishing, while focusing on workgroups rather than just on individuals.

L

LibreVPN

LibreVPN is a virtual mesh network using tinc plus configuration scripts that even let you build your own mesh VPN. It’s also IPv6 enabled.

M

Mixmaster

Mixmaster is a remailer network. It represents the second generation of remailers. Mixmaster can be used via a web sites like Anonymouse or as a stand-alone client.

Mixminion

Mixminion is a new remailer approach. The so-called type III remailer allows it to receive and send anonymous messages. However the development has stalled and the current software needs improvement.

Movim

Movim is a decentralized open source social network based on XMPP.

N

NameCoin

NameCoin is a decentralized naming system based on Bitcoin technology.

Nightweb

Nightweb connects your Android device or PC to an anonymous, peer-to-peer social network. You can write posts and share photos, and your followers will retrieve them using BitTorrent running over the I2P anonymous network. It is still experimental.

O

OneTime (1ty)

1TY is “One Time Self Destructing Links For Sharing Sensitive Information”

OpenNIC

OpenNIC Project is an alternative DNS provider that is open and democratic.

Osiris

Osiris is software for decentralized portal, managed and shared via P2P between members.

P

P

P is a small JavaScript library for creating peer-to-peer applications in browsers. It allows for transitive connections across peers which makes certain network topologies, such mesh networks, easy to establish.

PeerCDN

PeerCDN automatically serves a site’s static resources (images, videos, and file downloads) over a peer-to-peer network made up of the visitors currently on the site.

PeerServer

PeerServer is a peer-to-peer client server using WebRTC, where your browser acts as a server for other browsers across WebRTC peer-to-peer data channels.

Phantom

Phantom is (was?) a system for generic, decentralized, unstoppable internet anonymity

Project Byzantium

Project Byzantium – Ad-hoc wireless mesh networking for the zombie apocalypse. The goal of Project Byzantium is to develop a communication system by which users can connect to each other and share information in the absence of convenient access to the Internet. This is done by setting up an ad-hoc wireless mesh network that offers services which replace popular websites often used for this purpose, such as Twitter and IRC.

Project Meshnet

Project Meshnet aims to build a sustainable decentralized alternative internet. Used by Hyperboria and built on CJDNS.

pubsubhubbub

pubsubhubbub is a simple, open, server-to-server webhook-based pubsub (publish/subscribe) protocol for any web accessible resources.

pump.io

pump;io Described as “a stream server that does most of what people really want from a social network”. It’s a social stream with support for federated comunication.

Q

qaul.net

qaul.net implements a redundant, open communication principle, in which wireless-enabled computers and mobile devices can directly form a spontaneous network. Chat functions, file sharing and voice chat is possible independent of internet and cellular networks.

Quick mesh project

Quick mesh project is an openwrt based mesh networking firmware. Can be installed on any openwrt supported system. Auto configures any needed connections, auto detects internet connections and aunounces them. Native IPv6 support with IPv4 tunnels for current networking support.

R

Retroshare

RetroShare is an open source, decentralised communication platform. It lets you chat and share with friends and family, with a web-of-trust to authenticate peers.

S

Serval Project

The Serval Project lets mobile phones make phone calls to each other peer-to-peer without a base station.

Sneer

Sneer is a free and open source sovereign computing platform. It runs on your Windows, Mac or Linux machine (like Skype or Firefox) using the Java VM. It enables you to create your personal cluster by sharing hardware resources (CPU, disk space, network bandwidth) with your friends, host your own social network, information and media, create sovereign applications and share them with others, download and run sovereign applications created by others. You can do all these things directly with your peers, in an autonomous, sovereign way, without depending on online service providers such as email providers, Google, Facebook, etc.

Syndie

Syndie is an open source system for operating distributed forums offering a secure and consistent interface to various anonymous and non-anonymous content networks.

StatusNet

StatusNet is an open source microblogging platform that supports federation.

T

Tahoe-LAFS

Tahoe-LAFS is a Free and Open cloud storage system. It distributes your data across multiple servers. Even if some of the servers fail or are taken over by an attacker, the entire filesystem continues to function correctly, preserving your privacy and security.

Tavern

Tavern is a distributed, anonymous, unblockable network designed to ensure that no one is silenced, censored, or cut off from the rest of the world

Telehash

Telehash a new encrypted P2P JSON-based protocol enabling developers to quickly build apps that are distributed and private (see v2 of the spec)

Tent protocol

Tent is a protocol that puts users back in control. Users should control the data they create, choose who can access it, and change service providers without losing their social graph. Tent is a protocol, not a platform. Like email, anyone can build Tent apps or host Tent servers, all Tent servers can talk to each other, and there is no central authority to restrict users or developers.

The FNF

The FNF is the free network foundation: teaching how to build wireless community networks.

Tidepools

Tidepools is being developed within the Red Hook Mesh Network, for addressing local, social incentives for mesh use. An Open Source, Collaborative, Mobile Mapping & Social Hub, Reflecting Community Needs & Culture through Custom Apps, Time-based Maps, & Data Feeds.

Tonika

Tonika is a (digital) social network, which (by design) restricts direct communication to pairs of users who are friends, possesses many of the security properties (privacy, anonymity, deniability, resilience to denial-of-service attacks, etc.) that human sociaties implement organically in daily life.

Tor

Tor protects you by bouncing your communications around a distributed network of relays run by volunteers all around the world: it prevents somebody watching your Internet connection from learning what sites you visit, and it prevents the sites you visit from learning your physical location.

Tox

Tox The goal of this project is to create a configuration free p2p skype replacement.

Tribler

Tribler Aims to create a censorship-free Internet. Already deployed, used and incrementally improved for 8-years. Tribler uses an upcoming IETF Internet Standard for video streaming and is backward compatible with Bittorrent. Future aim is using smartphones to even bypass Internet kill switches. An early proof-of-principle Tribler-mobile is available on the Android Market. Key principle: ‘the only way to take it down is to take The Internet down’. Overview paper.

Truecrypt

TrueCrypt Free open source disk encryption software for Windows 7/Vista/XP/Mac OSX/ & Linux. Creates a virtual encrypted disk within a file and mounts it as a real disk. Encrypts an entire partition or storage device such as USB flash drive or hard drive. Encrypts a partition or drive where Windows is installed (pre-boot authentication). Encryption is automatic, real-time (on-the-fly) and transparent. Parallelization and pipelining allow data to be read and written as fast as if the drive was not encrypted. Encryption can be hardware-accelerated on modern processors. Provides plausible deniability, in case an adversary forces you to reveal the password: Hidden volume (steganography) and hidden operating system. More information on documentation page

U

Unhosted

Unhosted – also known as “serverless”, “client-side”, or “static” web apps, unhosted web apps do not send your user data to their server. Either you connect your own server at runtime, or your data stays within the browser.

V

Vole

Vole is a web-based social network that you use in your browser, without a central server. It’s built on the power of Bittorrent, Go and Ember.js. Uses bittorrent sync.

W

Webfist

Webfist is a fallback for when providers don’t support WebFinger natively. It lets you do WebFinger lookups for email addresses even if the owner of the domain name isn’t playing along. WebFist works because of a judo move on an existing infrastructure: DKIM.

Wave / Apache Wave

Wave is a distributed, near-real-time, rich collaboration platform that allows users to work together in new and exciting ways. Wave allows for flexible modes of communication, blending chat, email and collaborative document editing in to one seamless environment.

X

Y

YaCy

YACY is a peer-to-peer search that anyone can use to build a search portal for their intranet or to help search the public internet. When contributing to the world-wide peer network, the scale of YaCy is limited only by the number of users in the world and can index billions of web pages. It is fully decentralized, all users of the search engine network are equal, the network does not store user search requests and it is not possible for anyone to censor the content of the shared index.

Z

ZeroTier One

ZeroTier One is an open source application that creates huge distributed Ethernet networks. It makes use of supernodes, but these run the same code as ordinary nodes and end-to-end encryption protects all unicast traffic. Semi-commercial with a freemium model.

Currencies

Bitcoin

BitCoin is a digital currency, a protocol, and a software that enables it. Decentralized crypto-currency

Litecoin

LiteCoin is a peer-to-peer Internet currency that enables instant payments to anyone in the world (was based on Bitcoin)

See Namecoin above

PeerCoin/PPCoin

PeerCoin/PPCoin is the first known cryptocurrency based on an implementation of a combined proof-of-stake/proof-of-work system

Others

See bitcointalk for a list of others.

via How the Tesla Model S is Made — Behind The Scenes — The Window – Wired – YouTube.

This version uses the whole sha1sum:

#!/usr/bin/sh
for fname in *.mp3;
do
mv "$fname" $(echo "$fname" | sha1sum | cut -f1 -d' ').mp3
done

This version uses only the first 8 characters of the sha1sum (WARNING: might overwrite files)

#!/usr/bin/sh
for fname in *.mp3;
do
mv "$fname" $(echo "$fname" | sha1sum | cut -b -8).mp3
done

Lockitron deadbolt

Green Access

Goji Smart Lock

Unikey/Kwikset’s Kevo

President John F Kennedy Secret Society Speech version 2

via President John F Kennedy Secret Society Speech version 2 – YouTube.

Tell-all telephone | Data Protection | Digital | ZEIT ONLINE.

Hanlon’s razor is an eponymous adage that allows the elimination of unlikely explanations for a phenomenon. It reads: Never attribute to malice that which is adequately explained by stupidity.

via Hanlon’s razor – Wikipedia.

The Texas sharpshooter fallacy is an informal fallacy in which pieces of information that have no relationship to one another are called out for their similarities, and that similarity is used for claiming the existence of a pattern.1 This fallacy is the philosophical/rhetorical application of the multiple comparisons problem (in statistics) and apophenia (in cognitive psychology). It is related to the clustering illusion, which refers to the tendency in human cognition to interpret patterns where none actually exist.

The name comes from a joke about a Texan who fires some shots at the side of a barn, then paints a target centered on the biggest cluster of hits and claims to be a sharpshooter.

via Texas sharpshooter fallacy – Wikipedia.

signsofrain I would not be surprised if eventually (Google-)Glass was able to read ECG/EKG data […]

via Google Glass demo video – Boing Boing.

We speak of three kinds of laziness. The first is simply to spend all your time eating and sleeping. The second is to tell yourself, “Someone like me will never manage to perfect themselves.” In the Buddhist context, such laziness makes you feel that it’s pointless even trying, you’ll never attain any spiritual realization. Discouragement makes you prefer not even to begin making any effort. And the third kind… is to waste your life on tasks of secondary importance, without ever getting down to what’s most essential. You spend all your time trying to resolve minor problems, one after another in an endless sequence, like ripples on the surface of a lake. You tell yourself that once you’ve finished this or that project you’ll start giving some meaning to your life.

…

The antidote to the first kind of laziness— only wanting to eat and sleep— is to reflect on death and the impermanent nature of everything. We never know when we’re going to die or what circumstances are going to lead to our death. So there isn’t a moment to lose in getting down to what’s really essential. The antidote to the second kind of laziness — feeling too discouraged to commit ourselves to spiritual practice—is to reflect on the benefits that such inner transformation will bring. The antidote to the third kind—attending to details rather than to the essentials—is to realize that the only way to get to the end of our endless projects is to drop them, and then turn to what gives life its meaning without waiting any longer. Life is short, and if we want to develop our inner qualities it’s never too soon to start getting down to it.

via The Three Kinds of Laziness – garry’s subposthaven.

Soap doesn’t work. Toilets don’t flush. Clothes washers don’t clean. Light bulbs don’t illuminate. Refrigerators break too soon. Paint discolors. Lawnmowers have to be hacked. It’s all caused by idiotic government regulations […]

via How Government Wrecked the Gas Can | Laissez-Faire Bookstore.

When in doubt, click: “I have no clue what copyright law I’m subject to” here: Go To Hellman: It’s LEGAL to download The Great Gatsby….

This is an MP3 of the last hour and a half before they catch the 2nd Boston bomber. They already know that he is hiding under a boat’s shrink-wrap in someone’s backyard. I truncated the silences, it is now about 52 minutes: boston-2nd-bomber-apprehension_minus_silences.mp3

boston-2nd-bomber-apprehension minus silences from aaa on Vimeo.

Thanks to http://www.ustream.tv/channel/ma-rt-9-window-cam for streaming the police scanners live at that time.

You will need the fuel-cell (Minipak) to generate the power and the hydrogen generator (Hydrofill) to re-fill the fuel. The Minipak is a USB charger/power generator and the Hydrofill is used to charge the tanks (Hydrostiks, included with the Minipak). You could also use bottled industrial hydrogen in place of the Hydrofill hydrogen generator.

You can find more information at http://www.horizonfuelcell.com/portable_power_minipak.htm.

Ever need to record something on your computer exactly as it comes out of your speakers? Enabling “Stereo Mix” will let you do exactly that, and here’s how to do it. Nowadays, most sound cards have the ability to record whatever is being output. The only hang-up is accessing that recording channel, which can be done rather easily. Go down to the audio icon in your system tray, right-click it, and go to “Recording Devices” to open up the proper settings pane. In the pane, right-click on a blank area, and make sure both “View Disabled Devices” and “View Disconnected Devices” options are checked. You should see a “Stereo Mix” option appear. Right-click on “Stereo Mix” and click “Enable” to be able to use it. In some cases you might not see it because your drivers don’t support this feature. This was the case on my Asus Eee PC 1000HE, but I got around the issue by downloading and installing the older Windows XP/Vista drivers for my audio chipset. As always, before changing your drivers, make sure create a system restore point in case things don’t go as planned.

How Do I Use This? With “Stereo Mix” enabled, you can open up your favorite recording program and select that instead of your microphone before you record. If you don’t see the option, or your program doesn’t give you the ability to change the recording device, you can disable or unplug your microphone and make “Stereo Mix” the default recording device.This works well for when you want to capture audio for a screen-sharing session, or record audio from streaming sources – such as live web-casts – that don’t necessarily allow you to download content immediately. In order to do that, you’d open up your audio-recording application of choice like Audacity, be sure other recording devices are muted or disabled, and click record.

via How To Enable “Stereo Mix” in Windows 7 to Record Audio.

AbstractOur goal is to reveal temporal variations in videos that are difficult or impossible to see with the naked eye and display them in an indicative manner. Our method, which we call Eulerian Video Magnification, takes a standard video sequence as input, and applies spatial decomposition, followed by temporal filtering to the frames. The resulting signal is then amplified to reveal hidden information. Using our method, we are able to visualize the flow of blood as it fills the face and also to amplify and reveal small motions. Our technique can run in real time to show phenomena occurring at temporal frequencies selected by the user.

via Eulerian Video Magnification.

A python application that detects and highlights the heart-rate/pulse of an individual (using only their own webcam) in real-time.

via thearn/webcam-pulse-detector · GitHub.

Download repository (Current as of 4/16/2013)

Since Google is not willing to add ad-hoc wifi support to Android (see https://code.google.com/p/android/issues/detail?id=82), some nice folks have added support for it in a modified cyanogenmod available at: http://www.thinktube.com/android-tech/46-android-wifi-ibss.

via Android AdHoc IBSS Wifi support – Google Groups.

This is a part of the private collections of cooking videos for the staff training at Nihonryori Ryugin in Roppongi, Tokyo.

via TOKYOGASTRONOMY さんのチャンネル – YouTube.

Building a low-cost light-cured resin 3D printer

via 3ders.org – Building a low-cost light-cured resin 3D printer | 3D Printer News & 3D Printing News.

DIY Weapons of the Syrian Rebels – In Focus – The Atlantic.

A beautiful, simple way to convert almost any video to MP4, WebM vp8, Ogg Theora, or for Android, iPhone, and iPad. Batch conversion, custom sizing, and more!

via Miro Video Converter FREE – Convert any video to MP4, WebM vp8, iPhone, Android, iPod, iPad, and more..

Explorer refresh horror solved? 12 solutions and workarounds for a 5-year-old Windows Explorer bug

via What to do when Windows Explorer doesn’t refresh | ITworld.

Download: Aaron-H-Swartz-FBI-File.pdf

via http://news.firedoglake.com/2013/02/19/aaron-swartzs-fbi-file/ and http://www.scribd.com/doc/126146785/Aaron-H-Swartz-FBI-File

Also, from one of Aaron’s previous blog post:

“Want to meet the man behind the headlines? Want to have the F.B.I. open up a file on you as well? Interested in some kind of bizarre celebrity product endorsement? I’m available in Boston and New York all this month — contact me by email, Facebook, and web form.”

via NYT Personals Aaron Swartz’s Raw Thought.

GLSL Sandbox Gallery.

PrintrBoard SD Card & Boot-up fix

via PrintrBoard SD Card & Boot-up fix | Building a 3D Printer.

Best practices

• Fix broken links
  • W3C link checker
  • iWebTool Broken Link Checker
• Spelling and grammar
  • Capitalization
  • Writing Style
  • Word Variations e.g. UK vs US
• Check website in all browsers
  • BrowserShots.org
  • Browserling.com
  • Spoon.net
• Decide on www-subdomain
  • no-www.org score of ‘B’
  • …or www.yes-www.org
  • Handle ‘www’ in web.config

Mobile

• MobileOK score of 75+
  • W3C mobile checker
• Use ‘viewport’ meta-tag
  • Don’t Forget the Viewport Meta Tag
  • Make your website mobile friendly
• Use correct input types
  • Input type: Email, Url, Phone
  • Diving in to HTML5 forms
• Manual check using emulators
  • Online media query tester
  • 6 free mobile emulators
  • Opera Mobile Emulator
• Test using real devices
  • Use Open Device Labs to test multiple devices

Analytics

• Uptime monitoring
  • Uptime robot
  • GotSiteMonitor.com
• Traffic analysis
  • Google Analytics
  • StatCounter
  • Clicky
  • Piwik

Performance

• Google Page Speed score of 90+
  • Google Page Speed
• Yahoo YSlow score of 85+
  • Yahoo’s YSlow
• Optimize HTTP headers
  • redbot.org
• Optimize images
  • SmushIt.com
  • PunyPNG.com
  • PNGGauntlet for Windows
  • Image Optim for Mac

Usability

• HTML5 compatibility check
  • Compat Inspector
  • modern.IE
  • Modernizr JS library
• Custom 404 page
  • A more useful 404
• Favicon
  • Real Favicon Generator
  • Favicon Cheat Sheet
• Use friendly URLs
  • 11 best practices for URLs
  • URL rewriting in IIS
  • URL rewrite in Apache
• Print-friendly CSS
  • Set up a print stylesheet
• Add search feature
  • Google Custom Search
  • Consider ‘Open Search’
• Environment Integration
  • Safari on iOS
  • Internet Explorer on Windows
  • Windows 8 Tiles

Semantics

• Add meaning with structured data
  • Schema.org reference
  • Schema-Creator.org
• Check the semantics
  • W3C semantic extractor
  • Google Structured Data Testing Tool
  • Facebook OpenGraph Debugger
  • Twitter Card Validator

SEO

• SenSEO score of 85+
  • SenSEO for Firefox
• Google Rich Snippets
  • Online tester
  • Getting started
• robots.txt
  • robots.txt tutorial
  • Create robots.txt online
• XML sitemap
  • Create sitemap online

Code quality

• HTML validation
  • W3C HTML validator
  • Dr. Watson
• CSS validation
  • W3C CSS validator
• Run CSS Lint
  • Run CSS Lint online
• Run JSLint/JSHint
  • Run JSLint online
  • Run JSHint online
• World ready
  • W3C i18n checker
• Automated testing
  • Testomato

Accessibility

• Accessibility validation
  • Common problems and solutions
  • IDI Web Accessibility Checker
  • Test using a screen reader
• Color contrast
  • Check color contrast online
• WAI-ARIA Landmarks
  • Using WAI-ARIA Landmarks
  • Guide to WAI-ARIA
  • Practical examples

Security

• Follow best practices
  • ASafaaWeb security analyzer
  • OWASP Top 10 project
  • OWASP Cheat Sheets
  • CWE/SANS Top 25
• Cross-site scripting
  • XSS cheat sheet
  • DOM based XSS cheat sheet
  • Free XSS scanner
  • Cross-site request forgery
  • Explanation and walkthrough
  • CSRF cheat sheet
• Secure connection (SSL)
  • Setup SSL on IIS 7
  • Setup SSL on Apache
  • SSL Server Test
• HTTP Strict Transport Security
  • MDN Overview
  • OWASP Overview
• Enable Content Security Policy
  • Content Security Policy
  • MDN Guide
  • OWASP Overview
  • CSP Tester

Social Media

• Open Graph protocol
  • Open Graph protocol reference
• Twitter Cards
  • Documentation
• Facebook Insights
  • Facebook Insights
• Google+
  • Google+ Authorship
  • Google+ Publisher

…and finally

• Add humans.txt
  • We are humans, not machines!

Source

How To Make Thermite:

Now, I am not going to tell you guys what thermite is, or what you can do with it. Just do a Google search and you’ll find tons of sites telling you a bunch of uses for it. I will however, tell you how to make the stuff.

Obtaining the Aluminum

1) Go to a machine shop. They will usually give you aluminum powder for sweeping the floor or something.

2) Break open an Etch-A-Sketch, the stuff inside is pure aluminum powder.

3) Go to a paint store, they usually have powdered aluminum that people use to mix into paints to give it pigment.

4) Get a grinder, and something made of aluminum. Good ideas are soda cans, bike frames, and lacrosse sticks. Start grinding the aluminum and collect the sparks in a container.

5) Search eBay, they sell it for pretty cheap.

Obtaining the Iron Oxide (Rust)

1) Take some steel wool then put it in a jar and then cover it wool with water. Use a magnet to make sure the steel wool doesnt float during the reaction process. Next, put in 5 tablespoons of regular bleach into the water and 5 tablespoons of regular vinager. Wait a day or so and then filter the brown paste with a coffee filter. Leave it out to dry overnight.
2) Go to a paint store, they usually have powdered iron oxide that people use to mix into paints to give it pigment.

3) Connect wires to a direct current (9-volt battery), strip both ends and put them into a saltwater solution. Let them sit for five minutes. One of them will start bubbling more than the other. This is the POSITIVE(+) wire. Put a nail tied to the positive wire into the jar. Now put the negative wire in the other end. Now let it sit overnight and in the morning scrape the rust off of the nail & repeat until you have a bunch of rust on the bottom of the glass. Let it dry out, and crush it into a powder.

4) Search eBay, they sell it for pretty cheap.

Mixing the Stuff
Thermite is 8 grams of iron oxide to 3 grams of aluminum. The formula is by weight but because aluminum is very light, it will appear to be approximately a 50-50 mix. Put them together in a container and mix them until it is an even mixture. If you want, mix four parts thermite with one part clay or Play-Doh and knead thoroughly for moldable thermite.

Igniting

Thermite needs a lot of heat to light, that means magnesium. Find some magnesium ribbon, or a sparkler that contains magnesium and put it into a pile of thermite. Light it with a torch, and run!

Source http://how2dostuff.blogspot.com/2006/01/how-to-make-thermite.html

Free DIY Shed Plans Complying To The Florida Building Code

Update: 109 PDF shed plans complying to the 2014 Florida Building Code as of 03-06-2016.

Download free PDF shed plans complying to the 2010 Florida Building Code (latest code as of 12/23/2012) shed.zip.   There is barn-style and standard slope style roofs.  Many are master plans that can be built to many different sizes.  They have been approved by the Department of Business and Professional Regulation and have an engineer’s seal so they could be used for permit application at the city’s building department.

Source

Move your boat trailer, without a truck.

To disable Facebook Messenger for Firefox, simply right-click the blue F button in the top-right corner of your Firefox window and then select the option to remove it.

“The new Facebook Messenger integration, which is the first new service to come out of Mozilla’s new Social API project, is optional and must be turned on by the user, according to a Nov. 20 post on The Mozilla Blog. So far, the Facebook integration is a preview into the fledgling service, and more capabilities and features will be added.”

Thoughts on Technology: Raspberry Pi vs MK802.

Installing Perl under your home directory « Roger Cuddy.

Capture an image every 2 seconds and keep the last 43,200 images (24 hours).

startuvc.sh

#!/bin/sh
cd /home/pi/uvccapture
uvccapture -v -S45 -B190 -C35 -G50 -x640 -y480  -t2 -c/home/pi/uvccapture/copyimage.pl

copyimage.pl

#!/usr/bin/perl
use warnings;
use strict;
use File::Copy;

my $newImage = "/home/pi/uvccapture/snap.jpg";
my $destdir = "/home/pi/uvccapture/images";
my $frames = 43200;

chdir $destdir or die "cannot change directory";
my $newest_file = 'ls -t | head -1';
chomp $newest_file;

my $lastNum = 0;
my $currentNum = 1;

if ($newest_file =~ m/(.*?)\.jpg/) {
  $lastNum = $1;

  if ($lastNum < $frames) {
    $currentNum = $lastNum + 1;
  }

  copy($newImage,"$destdir/$currentNum.jpg") || print "\n Failed to copy $newImage\n";
}

Error:

Error: ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.front

Fix:

pi@raspberrypi ~ $ sudo vi /usr/share/alsa/alsa.conf
change the line "pcm.front cards.pcm.front"
             to "pcm.front cards.pcm.default"

Super Wi-Fi

Super WiFi,or IEEE 802.22 and IEEE 802.11af as it’s Technically known, is a term coined by the United States Federal Communications Commission (FCC) to describe a wireless networking proposal which the FCC plans to use for the creation of longer-distance wireless internet.¹² The use of the trademark “Wi-Fi” in the name has been criticized because it is not based on Wi-Fi technology or endorsed by the Wi-Fi Alliance.¹

Instead of using the 2.4 GHz radio frequency of Wi-Fi, the ‘Super Wi-Fi’ proposal uses the lower-frequency white spaces between television channel frequencies.³ These lower frequencies allow the signal to travel further and penetrate walls better than the higher frequencies previously used.³ The FCC’s plan is to allow those white space frequencies to be used for free, as happens with Wi-Fi and Bluetooth.³

via Super Wi-Fi – Wikipedia, the free encyclopedia.

Software defined radio DVB-T dongles based on the Realtek RTL2832U can be used as a cheap SDR, since the chip allows transferring the raw I/Q samples to the host, which is officially used for DAB/DAB+/FM demodulation. The possibility of this has been discovered by the V4L/DVB kernel developer  Antti Palosaari{.ext-link}.

rtl-sdr – OsmoSDR.

ACRA – Know your BUGS..

In telecommunication, a log-periodic antenna (LP, also known as a log-periodic array or log periodic beam antenna/aerial) is a broadband, multi-element, directional, narrow-beam antenna{.mw-redirect} that has impedance and radiation characteristics that are regularly repetitive as a logarithmic function of the excitation frequency.

via Log-periodic antenna – Wikipedia, the free encyclopedia.

3d object file viewer in browser

via My Applications: 3d object file viewer in browser.

Smart home automation webserver on OpenWRT router WR703N interfaced to Arduino

via Smart home automation webserver on OpenWRT router WR703N interfaced to Arduino, compared to Raspberry Pi and Ubuntu.

Off-the-Record OTR Messaging allows you to have private conversations over instant messaging

via Off-the-Record Messaging.

Books on the Knob, Pixel of Ink, and iReader Review are three blogs that feature free & bargain ebooks daily. If you want to start simple there’s OpenCulture’s 375 Free eBooks list but if you don’t mind doing some footwork then there’s this very comprehensive 614 Places for Free eBooks Online post (with divisions of content by genre) on Gizmo’s Freeware.

more sites featuring free & cheap ebooks:

*ManyBooks

*Feedbooks (free public domain & original books)

*Daily Cheap Reads (UK edition)

*AddAll ebooks

*eReaderIQ

*Bargain eBook Hunter

*Free Kindle Books and Tips

*Kindle Nation Daily

*Bargain eBooks

*Book Depository

*for romance readers, both Dear Author and Smart Bitches, Trashy Books feature regular deal posts

*and of course there’s always the Baen Free Library

Not to mention the granddaddy of them all, easy to ignore because it’s been around so long: Gutenberg

Also: Openlibrary.org

For those with iDevices, there’s always the Free Books app

via free & cheap ebooks | MetaFilter.

JSLint,The JavaScript Code Quality Tool.

JSHint,A JavaScript Code Quality Tool.

Closure Compiler Service.

The Online Lint.

Mp3tag is a powerful and yet easy-to-use tool to edit metadata of common audio formats where it supports ID3v1, ID3v2.3, ID3v2.4, iTunes MP4, WMA, Vorbis Comments and APE Tags.

via Mp3tag – the universal Tag Editor ID3v2, MP4, OGG, FLAC, ….

Note: Don’t use ID3v2.4 as is causes issues with Windows Media Player and possible other players.

Create Bingo Cards in Excel

BingoCard_101.pdf (10 unique bingo cards)

BingoCard_101.xls (if you need to print more then 10)

via Create Bingo Cards in Excel « Contextures Blog.

BingoCard_visually_impaired.pdf

USBPIC Boards and Software

1. TRANS: Eight TO220 FET open drain drivers;

2. MATRIX: Sixteen medium power drivers, using ULN2803 or UDN2982 chips;

3. HBSW: Four TO220 FETs and one L298 (2-channel) H-bridge chip.

via USBPIC Board Documentation.

The TL-WR703N is marketed as a “3G travel router”. It does not include a 3G modem – it simply means that the OEM firmware supports USB 3G modems, and that the oem firmware contains drivers for USB modems! Ridiculous, since with OpenWrt ANY router with USB supports 3G hardware… ;-)

via TP-Link TL-WR703N – OpenWrt Wiki.

2 Channel USB/Wireless 5V Relay Module Bluetooth Remote Control Kit

via 2 Channel USB/Wireless 5V Relay Module Bluetooth Remote Control Kit.

Mathematical Challenge 1: The Mathematics of the Brain

Develop a mathematical theory to build a functional model of the brain that is mathematically consistent and predictive rather than merely biologically inspired.

Mathematical Challenge 2: The Dynamics of Networks

Develop the high-dimensional mathematics needed to accurately model and predict behavior in large-scale distributed networks that evolve over time occurring in communication, biology and the social sciences.

Mathematical Challenge 3: Capture and Harness Stochasticity in Nature

Address Mumford’s call for new mathematics for the 21st century. Develop methods that capture persistence in stochastic environments.

Mathematical Challenge 4: 21st Century Fluids

Classical fluid dynamics and the Navier-Stokes Equation were extraordinarily successful in obtaining quantitative understanding of shock waves, turbulence and solitons, but new methods are needed to tackle complex fluids such as foams, suspensions, gels and liquid crystals.

Mathematical Challenge 5: Biological Quantum Field Theory

Quantum and statistical methods have had great success modeling virus evolution. Can such techniques be used to model more complex systems such as bacteria? Can these techniques be used to control pathogen evolution?

Mathematical Challenge 6: Computational Duality

Duality in mathematics has been a profound tool for theoretical understanding. Can it be extended to develop principled computational techniques where duality and geometry are the basis for novel algorithms?

Mathematical Challenge 7: Occam’s Razor in Many Dimensions

As data collection increases can we “do more with less” by finding lower bounds for sensing complexity in systems? This is related to questions about entropy maximization algorithms.

Mathematical Challenge 8: Beyond Convex Optimization

Can linear algebra be replaced by algebraic geometry in a systematic way?

Mathematical Challenge 9: What are the Physical Consequences of Perelman’s Proof of Thurston’s Geometrization Theorem?

Can profound theoretical advances in understanding three dimensions be applied to construct and manipulate structures across scales to fabricate novel materials?

Mathematical Challenge 10: Algorithmic Origami and Biology

Build a stronger mathematical theory for isometric and rigid embedding that can give insight into protein folding.

Mathematical Challenge 11: Optimal Nanostructures

Develop new mathematics for constructing optimal globally symmetric structures by following simple local rules via the process of nanoscale self-assembly.

Mathematical Challenge 12: The Mathematics of Quantum Computing, Algorithms, and Entanglement

In the last century we learned how quantum phenomena shape our world. In the coming century we need to develop the mathematics required to control the quantum world.

Mathematical Challenge 13: Creating a Game Theory that Scales

What new scalable mathematics is needed to replace the traditional Partial Differential Equations (PDE) approach to differential games?

Mathematical Challenge 14: An Information Theory for Virus Evolution

Can Shannon’s theory shed light on this fundamental area of biology?

Mathematical Challenge 15: The Geometry of Genome Space

What notion of distance is needed to incorporate biological utility?

Mathematical Challenge 16: What are the Symmetries and Action Principles for Biology?

Extend our understanding of symmetries and action principles in biology along the lines of classical thermodynamics, to include important biological concepts such as robustness, modularity, evolvability, and variability.

Mathematical Challenge 17: Geometric Langlands and Quantum Physics

How does the Langlands program, which originated in number theory and representation theory, explain the fundamental symmetries of physics? And vice versa?

Mathematical Challenge 18: Arithmetic Langlands, Topology and Geometry

What is the role of homotopy theory in the classical, geometric and quantum Langlands programs?

Mathematical Challenge 19: Settle the Riemann Hypothesis

The Holy Grail of number theory.

Mathematical Challenge 20: Computation at Scale

How can we develop asymptotics for a world with massively many degrees of freedom?

Mathematical Challenge 21: Settle the Hodge Conjecture

This conjecture in algebraic geometry is a metaphor for transforming transcendental computations into algebraic ones.

Mathematical Challenge 22: Settle the Smooth Poincare Conjecture in Dimension 4

What are the implications for space-time and cosmology? And might the answer unlock the secret of “dark energy”?

Mathematical Challenge 23: What are the Fundamental Laws of Biology?

This question will remain front and center in the next 100 years. This challenge is placed last, as finding these laws will undoubtedly require the mathematics developed in answering several of the questions listed above.

via 23 Mathematical Challenges.

pwnieexpress/Raspberry-Pwn · GitHub.

The best place on the web to learn anything, free.

via No Excuse List.

Common Crawl is a non-profit foundation dedicated to building and maintaining an open crawl of the web, thereby enabling a new wave of innovation, education and research.

via Common Crawl.

Sketchup is pretty handy for Reprap design once you install:

• http://www.guitar-list.com/download-software/convert-sketchup-skp-files-dxf-or-stl
• http://sketchuptips.blogspot.com/2010/03/sketchup-stl-importer-redo.html
• http://www.cad-addict.com/2009/07/sketchup-plugins-delete-coplanar-edges.html
• http://code.google.com/p/sketchup-svg-outline-plugin/
• http://support.ponoko.com/entries/20337512-find-holes-in-you

3ders.org – price compare 3D printers.

]1

If you have the Windows firewall blocking all unauthorized outgoing connections, some Flash content doesn’t work properly.

1. Start “Windows Firewall With Advanced Security” as an administrator
2. Create a new Outbound Rule and allow the following program file: C:\Windows\SysWOW64\Macromed\Flash\FlashPlayerPlugin_11_3_300_257.exe Filename may vary depending on Flash and Windows version.

https://www.youtube.com/watch?v=quGhaggn3cQ

via An open source implementation of Xbox KinectFusion – Point Cloud Library 3D Scanning.

https://www.youtube.com/watch?v=yOWkwUqzqPk

SHA-1 hash of password “supersecret$f2%38h##f23” is “33438b91ce09e6959232f698b7939e6ee1d0712a”

Should you use randomly generated password + salt for each visitor?

OPENROV

OpenROV is a
 Do It Yourself telerobotics community centered around underwater exploration and education. We have developed a low-cost telerobotic submarine that can be built with mostly off-the-shelf parts.
The goal of OpenROV is to democratize exploration by allowing anyone to explore and study underwater environments.

Note: run as Administrator.

Default Programs Editor makes it easy to fix file association settings in Windows, including context menu items, icons, and descriptions. Also: auto-play settings and default programs settings …all without fiddling around in the registry.

Download Default Programs Editor.

That is right, no more search terms are required… their algorithm doesn’t require any direct input from the user.

Ready in : ¹⁄₂ day

Quantity: approx. 1 pound (454g) of cheese per 1 gallon of milk

Ingredients:

• 1 gallon of whole milk (or non-homogenized raw milk)
• ¹⁄₄ tsp calcium chloride
• 1 packet of thermophilic culture (lactose, S.Thermophilus, D.S.Bulgaricus, L.Helveticus)
  • Note: 1 packet can process up-to 2 gallons of milk
• ¹⁄₄ tsp Rennet
• 2 tbs water
• Kosher salt to taste (or coarse sea salt)

Note: these ingredients are probably also available at your local grocery store.

Equipement:

• 1 large stainless pot
• 1 large stainless spoon
• 1 thermometer
• 1 large strainer
• 1 cheesecloth (approx. 12pouces X 24pouces (30cm X 60cm))
• 1 long stainless knife

** All stainless equipment should be very clean. Sterilize if possible. **

Directions:

1. Pour milk in the pot and start heating at the lowest setting until the temperature reaches 85°F (30°C).

2. Add calcium chloride and the envelope of culture and mix well (rinse spoon with cold water)

3. Turn off the stove so that the temperature stop rising.

4. Let stand for 45 minutes.

5. Mix ¹⁄₄ tsp of Rennet with 2 table spoon of water

6. Add rennet mix to milk and mix well (Rince spoon under cold water)

7. Let stand for another 45 minutes.

8. Check the condition of the curd by planting the thermometer and the emerging at an angle of 90 degrees. If the break is sharp, the curd is ready. Otherwise, wait another 15 minutes.

9. Start the heat at the lowest setting

10. Cut the curd into slices about ¹⁄₂ inch across the width of the cauldron. Rotate a quarter turn and cut in the other direction, so that the curd is completely diced ¹⁄₂ inch wide. Then cut diagonally downward in both directions.

11. Let stand for 10 minutes.

12. Stir gently every 2-3 minutes, until the temperature reaches 110°F (44°C). This step is long and laborious, but it is allowing the whey out of the cheese and prevents the curds from clumping.

13. Close the heat when the temperature reaches 110°F (44°C)

14. Check the texture of the curd by taking a piece between your fingers. If it collapses well, without gelatinous texture and it is spongy but still firm, it’s ready. Otherwise, keep going (with the heat off)

15. Cover the strainer with cheesecloth folded in two (to form a square) and pour everything.

16. Let drain about 10 minutes and then squeeze with your hands to release the whey. This step is also quite long! (30 minutes to 1 hour)

17. When everything seems to be out, break your cheese curds with your hands and put it back in the pot

18. Salt to taste with coarse salt (I used 1 tsp)

Your cheese is ready for tasting! It will keep at room temperature for 24 hours, it is advisable to refrigerate afterwards.

Sources: http://www.travelblog.org/Oceania/Australia/New-South-Wales/Sydney/Bondi-Beach/blog-349194.html and http://www.cheesemaking.com/Recipe_CheeseCurds.html.

Durée totale : ¹⁄₂ journée

Quantité: approx. 454g (1 livre) de fromage par 4 litres de lait

Ingrédients:

• 4 litres de lait 3.25% (ou non-homogénéisé)
• ¹⁄₄ c. à thé de chlorure de calcium (Acheter chez Amazon)
• 1 sachet de culture thermophile (lactose, S.Thermophilus, D.S.Bulgaricus, L.Helveticus) (Acheter chez Amazon)
  • Note: 1 sachet peut traiter jusqu’a 7.6 litres (2 gallons) de lait
• ¹⁄₄ c. à thé de Rennet (Acheter chez Amazon)
• 2 c. à table d’eau
• Sel Kosher au goût (ou gros sel de mer)

Note: ces ingrédients sont probablement aussi disponible à l’épicerie.

Équipement:

• 1 grand chaudron en acier inoxydable
• 1 louche ou grande cuillère en acier inoxydable
• 1 thermomètre
• 1 grande passoire
• 1 grand coton à fromage (cheesecloth) (approx. 30cm X 60cm (12pouces X 24pouces))
• 1 grand couteau en acier inoxydable

** Il est important que tout soit en acier inoxydable et que tout soit d’une propreté irréprochable. Stériliser l’équipement si possible. **

Mode de préparation:

1. Verser le lait dans le chaudron et mettre à chauffer à la plus basse température jusqu’à ce que la température atteigne 30°C (85°F).

2. Ajouter le chlorure de calcium et l’enveloppe de culture et bien mélanger (rincer la louche à l’eau froide)

3. Fermer le rond pour que la température cesse d’augmenter et couvrir le chaudron.

4. Laisser reposer 45 minutes.

5. Diluer ¹⁄₄ c. à thé de Rennet dans 2 c. à table d’eau

6. Ajouter au lait et bien brasser. (Rincer la louche à l’eau froide)

7. Laisser reposer un autre 45 minutes.

8. Vérifier l’état du caillé en plantant la thermomètre et en le ressortant en formant un angle de 90 degrés. Si la coupure est nette, le caillé est prêt. Sinon, attendre un autre 15 minutes.

9. Ouvrir le rond à la plus basse température.

10. Couper le caillé en tranches d’environ ¹⁄₂ pouce sur toute la largeur du chaudron. Tourner d’un quart de tour et couper dans l’autre sens, de manière à ce que le caillé soit entièrement coupé en cubes d’¹⁄₂ pouce de large. Couper ensuite en diagonale vers le bas, dans les deux sens.

11. Laisser reposer 10 minutes.

12. Brasser doucement à toutes les 2-3 minutes, jusqu’à ce que la température atteigne les 44°C (110°F). Cette étape est longue et laborieuse, mais c’est ce qui permet au lactosérum de sortir du fromage et empêche le caillé de s’agglutiner.

13. Fermer la chaleur quand la température aura atteint 44°C (110°F)

14. Vérifier la texture du caillé en prenant un morceau entre vos doigts. S’il s’écrase bien, sans texture gélatineuse et qu’il est bien spongieux mais quand même ferme, c’est prêt. Sinon, continuer de brasser (avec le rond éteint)

15. Couvrir la passoire avec le coton à fromage plié en 2 (pour former un carré) et y verser le caillé.

16. Laisser s’égoutter environ 10 minutes et ensuite, presser avec les mains pour faire sortir le lactosérum. Cette étape est aussi plutôt longue! (de 30 minutes a 1 heure)

17. Lorsque tout semble être sorti, défaire votre fromage en grains, avec les mains, et le remettre dans le chaudron.

18. Saler au goût, avec le sel en flocons (J’ai utilisé ~1 c. à thé)

Votre fromage est prêt à être dégusté! Il se conserve à température ambiante pendant 24 heures, il est conseillé de le réfrigérer par la suite.

Sources: http://www.travelblog.org/Oceania/Australia/New-South-Wales/Sydney/Bondi-Beach/blog-349194.html and http://www.cheesemaking.com/Recipe_CheeseCurds.html.

Our Not-So-Friendly Northern Neighbor – NYTimes.com.

Leap Motion sensor offers 3D gesture control at an affordable price.

List of emerging technologies – Wikipedia, the free encyclopedia.

Long-life [living] hinges are made from polypropylene or polyethylene. If the hinge is not expected to last forever, engineering resins like nylon and acetal can be used.

via Living Hinge Design.

Software list:

• 123D Catch (Autodesk)
• PhotoScan (Agisoft)
• Photomodeller, Bundler
• Visual SFM
• Photosynth (Microsoft)
• Acutrans 3D
• Zsurf

Motorola Triumph CM9 Android 4.0 (ICS)

via [ROM][ALPHA] Triumph CM9 v0.6.13.3 Released – Android Forums.

Music Sequencer

Digital Audio Workstation

Rosegarden

LMMS

MIDI Editors and Sequencers

FL Studio

Audio Mixing Programs (Free & Open Source)

Gallery of pictures taken in the United States and Canada (most states and provinces) that should be attributed to Léandre Bouchard released under the Creative Commons Attribution-Share Alike 3.0

Phrack issue #68 | Release date : 14/04/2012

Split picture into multiple images to be able to print a large image on a regular printer on 8-¹⁄₂ x 11 paper

PosteRazorMake your own poster!

via PosteRazor – Make your own poster!.

10 Million hits a day with WordPress using a $15 server

via 10 Million hits a day with WordPress using a $15 server | Ewan’s Blog on IT and stuff like it.

Software-Defined Radio For $11.

DVB-T sticks based on the Realtek RTL2832U can be used as a cheap SDR.

RTL-SDR compatibility list [work in progress, please help!].

USRP Interfaces – SpenchWiki.

Windows instructions

HDSDR

Winrad

WRPLUS

Ten Simple Rules for Starting a Company

via PLoS Computational Biology: Ten Simple Rules for Starting a Company.

Tell Everyone About Your Business Idea – Don’t Keep It A Secret

via Tell Everyone About Your Business Idea – Don’t Keep It A Secret | Entrepreneurship As An Adventure Sport.

Rule based on ‘%SystemRoot%\System32\svchost.exe’

Under the “Programs and Services” tab, Go to the “Settings” tab, select “apply to this service”, select “windows update” OK.

Only TCP remote ports 80, 443 are required.

via Allow Windows Update through windows firewall – Neowin Forums.

‘c:\netsh firewall set logging droppedpackets = enable’

Although the log file doesn’t include the name of the program that is trying to make an outbound connection, the log file can then be found at: %systemroot%\system32\LogFiles\Firewall\pfirewall.log

via Enabling Windows firewall “dropped packets” log – Microsoft Answers.

Add these custom filters to Adblockplus:

• ||addthis.com^$third-party
• ||addtoany.com^$third-party
• ||sharethis.com^$third-party

via Adblock Plus – View topic – Share/Save pop-ups.

12 Free Or Almost Free Tools To Grow Your Business In 2012.

This laptop is ok, besides the keyboard that broke down after only 1 year (right after the warranty expired, some keys fell/broke off). It is about $50 to get a (DIY) replacement keyboard on Ebay..

Portege R835-P84 Laptop Specifications (PDF)

Performance

Processor*

Intel® Core™ i5-2435M processor

Operating System*

Genuine Windows 7 Home Premium (64-bit), SP1

Graphics Engine*

Mobile Intel® HD Graphics

Graphics Memory*

64MB-1696MB dynamically allocated shared graphics memory

Memory and Storage

Memory*

4GB DDR3 1333MHz memory

Hard Drive*

640GB HDD (5400rpm)

Optical Drive*

DVD-SuperMulti drive (+/-R double layer)

Audio and Video

Display Size

13.3″ widescreen

Display Type*

HD TruBrite® LED Backlit display with Intel® Wireless Display Technology

Display Resolution

Supports 720p content, 16:9 aspect ratio, 1366×768 (HD)

Audio

Headphone jack (stereo), Standard stereo speakers, Microphone jack (mono)

Communication

Webcam

Webcam and microphone built into LCD bezel

Wireless LAN*

Intel® Wi-Fi® Wireless networking (802.11b/g/n + WiDi Capable)*

Bluetooth

No Bluetooth (No Antenna)

Modem*

No Modem port

LAN

10/100/1000 Ethernet LAN

Power

AC Adapter

65W (19V 3.42A) Auto-sensing, 100-240V / 50-60Hz input

Battery

Li-Ion (66Wh, 6-Cell)

Battery Life*

Up to 9 hours

via Toshiba Portégé® R835-P84 13.3″ widescreen Laptop (Blue) | Laptops | Computers | us.toshiba.com.

Connect your things to the Internet, without a nerd degree.

via Twine : Listen to your world, talk to the Internet by Supermechanical — Kickstarter.

Web Search by the people, for the people

via YaCy – The Peer to Peer Search Engine: Home.

Download World’s ugliest song mp3.

http://ddeville.com/derek/Qu8k.html

Lately we’ve been inundated with 100k’ balloon flights and amazing video footage from space — the flights usually taking better than an hour to achieve apogee. Derek Deville took a shortcut to 121k’ using a ‘home made’ Q rocket motor and a ton of engineering genius. On September 30, 2011 at 11:08am, Qu8k (pronounced ‘Quake’) launched from the Black Rock Desert in Nevada to an altitude of 121,000′ in 92 seconds before returning safely to earth.This small documentary on the flight is probably one of the most brilliant Amateur Rocket videos out there right now.

via Qu8k Rockets Above the Balloons – Slashdot.

At page 14 of Google’s results for keywords “android touchpad”, they list 447,000 results and at page 15 it drops to 144 results. Inflated result counts?

Pranav Mistry: The thrilling potential of SixthSense technology

via Pranav Mistry: The thrilling potential of SixthSense technology – YouTube.

The world in parties

via The world in parties? – festival travel parties | Ask MetaFilter.

1. use the web interface – enable this through Settings, Network

2. use an EventClient app – there’s a really slick one at a URL I’ve forgotten (hopefully someone around here will remember it) or I have a really crude one at http://swarchive.ratsauce.co.uk/eventclient.zip that was written as a quick test

3. the next version, Dharma (in beta now), will support JSON though I must admit I’m not sure what this is or how it works

via remotly control xbmc using laptop? – XBMC Community Forum.

WGU is a fully accredited online university offering online bachelor’s and master’s degree programs.

via WGU Online University | Online Degree Programs, Accredited Bachelor’s and Master’s.

• Macbook Air 11.6-Inch or 13.3-Inch (no USB 3.0)
• Lenovo IdeaPad U300s (Coming November 2011 at about $1,200)
• Lenovo X220 (There is also the Lenovo X1)
• Asus UX21 (11.6-Inch) or UX31 (13.3-Inch)
• Sony Vaio VPC-Z212GX/B 13.1-Inch
• Samsung-900X3A 13.3-Inch
• LG P220 12.5-Inch (no USB 3.0)
• Toshiba Portege Z830 Ultrabook (Available November 2011 under $1000)
• Acer Aspire S3 (from $899)

LifeNet is a WiFi-based data communication solution designed for post-disaster scenarios. It is open-source software and designed to run on consumer devices such as laptops, smart-phones and wireless routers. LifeNet is an ad hoc networking platform over which critical software applications including chat, voice messaging, MIS systems, etc. can be easily deployed. LifeNet can grow incrementally, is robust to node failures and enables Internet sharing. A novel multi-path ad-hoc routing protocol present at its core, enables LifeNet to achieve these features.

via LifeNet: About LifeNet.

Hannu’s Boatyard

Free Boat Plans

Last updated September 9. 2009

via Hannu’s Boatyard | Free Boat Plans.

Where are the Files?

via T E X T F I L E S D O T C O M.

Build thread: submicro brushless motors.

Set up 4 to 6 passwords:

one for all the low-security sites,

another for any site that has your credit card number,

another for social networking,

another for email,

another for work,

and the most secure for your banking sites. Sleep better.

Keep them on a piece of paper somewhere safe like your wallet.

These rules are not always possible, but they help reduce the numbers of passwords while staying fairly secure.

It can be difficult to remember every sites that you used if you decide to update your passwords, but what I do is keep the latest two versions of my passwords handy.

via Observations: How to Know if Hackers Have Stolen Your Password.

http://www.politicsdaily.com/2011/01/06/huck-finn-censorship-and-the-n-word-controversy/

local mirror of huckfinn.pdf uncensored

dropbox mirror of huckfinn.pdf uncensored

The 3M Aqua-Pure AP903 is a whole house water filter system which is one of the best single cartridge whole house water filter systems on the entire water filter market. The 3M Aqua-Pure AP903 features high flow rates up to 20 gallons per minute (GPM) using 1″ FNPT inlet/outlet water line connections.

via 3M Aqua-Pure AP903 Whole House Water Filter System Only $215.

Fuligo septica is a species of plasmodial slime mold, and a member of the Myxomycetes{.mw-redirect} class. It is commonly known as the dog vomit slime mold^[2] or scrambled egg slime because of its peculiar yellowish, bile-colored appearance. A common species with a worldwide distribution, it is often found on bark mulch in urban areas after heavy rain or excessive watering. Their spores are produced on or in aerial sporangia{.mw-redirect} and are spread by wind.

Fuligo septica – Wikipedia, the free encyclopedia.

Gosmart Clip – A Cell Phone Holder That Mounts Your Smartphone, iPhone, Blackberry, Droid onto Your Car’s Steering Wheel for GPS Navigation and easy access.

UPDATE: EFF Applauds New Electronic Privacy Bill That Tells the Government: Come Back With a Warrant!

As the law stands now, the authorities may obtain cloud e-mail without a warrant if it is older than 180 days, thanks to the Electronic Communications Privacy Act adopted in 1986. At that time, e-mail left on a third-party server for six months was considered to be abandoned, and thus enjoyed less privacy protection. However, the law demands warrants for the authorities to seize e-mail from a person’s hard drive.

via Justice Dept. to Congress: Don’t Saddle 4th Amendment on Us | Threat Level | Wired.com.

I tried to add a 2nd google account on my Android phone and got the following error even if I connected using wifi: “can’t establish a reliable data connection to the server”.

The workaround that I found is to register your Google account through your YouTube app, after which your gmail for that account will be available for syncing.

Source http://forum.xda-developers.com/showthread.php?t=780545

Source http://ask.metafilter.com/181167/Google-is-driving-me-nuts

Download annoyinggoogle.xml, extract and save this file to ~/.mozilla/firefox/yourprofile/searchplugins/ in Linux or “’%PROGRAM_FILES%\Mozilla Firefox\searchplugins’” or “’%APPDATA%\Mozilla\Firefox\Profiles\XXXXXXXX.default\searchplugins’”  in Windows and restart Firefox.

[xml]

<SearchPlugin xmlns=&#8221;http://www.mozilla.org/2006/browser/search/&#8221;>

<ShortName>G00gle</ShortName>

<Description>Non Crappy Google Search</Description>

<InputEncoding>UTF-8</InputEncoding>

<Image width=&#8221;16&#8243; height=&#8221;16&#8243;>data:image/jpg;base64,/9j/4AAQSkZJRgABAQEAxwDHAAD/4QAWRXhpZgAATU0AKgAAAAgAAAAAAAD/2wBDAAUDBAQEAwUEBAQFBQUGBwwIBwcHBw8LCwkMEQ8SEhEPERETFhwXExQaFRERGCEYGh0dHx8fExciJCIeJBweHx7/2wBDAQUFBQcGBw4ICA4eFBEUHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh7/wAARCAAQABADASIAAhEBAxEB/8QAFQABAQAAAAAAAAAAAAAAAAAABAj/xAAlEAABBAIBAwQDAAAAAAAAAAABAgMEBRESBwAGIRMiMUEyUWH/xAAVAQEBAAAAAAAAAAAAAAAAAAACBf/EAB8RAAEDAwUAAAAAAAAAAAAAAAEAAhEEMWESIUKRof/aAAwDAQACEQMRAD8AqHke4l08SqcbL7MGRYtsWEplGyozKkq958HUbhCSrHgE/Hz0TjB6zkSu4nJVnJtK5NjpWTHVDV1kITsE4ABCVladh+WvQuRrK3ZtalDce3doypwWIqhmQFYwgED3afvX+5+ui8TQXaWVcMwWrGJ24842qrhTyS6yvCvVIBJUlBJGATnwT9+aQ0CkNpPu/YdixbmEOS//2Q==</Image>

<Url type=&#8221;application/x-suggestions+json&#8221; method=&#8221;GET&#8221; template=&#8221;http://suggestqueries.google.com/complete/search?output=firefox&client=firefox&hl={moz:locale}&q={searchTerms}&#8221;/>

<Url type=&#8221;text/html&#8221; method=&#8221;GET&#8221; template=&#8221;http://www.google.com/search&#8221;>

<Param name=&#8221;q&#8221; value=&#8221;allinanchor:{searchTerms}%20OR%20allintext:{searchTerms}%20OR%20allinurl ={searchTerms}%20OR%20allintitle ={searchTerms}&#8221;/>

<Param name=&#8221;ie&#8221; value=&#8221;utf-8&#8243;/>

<Param name=&#8221;oe&#8221; value=&#8221;utf-8&#8243;/>

<Param name=&#8221;aq&#8221; value=&#8221;t&#8221;/>

<!&#8211; Dynamic parameters &#8211;>

<Param name=&#8221;rls&#8221; value=&#8221;{moz:distributionID}:{moz:locale}:{moz:official}&#8221;/>

<MozParam name=&#8221;client&#8221; condition=&#8221;defaultEngine&#8221; trueValue=&#8221;firefox-a&#8221; falseValue=&#8221;firefox&#8221;/>

</Url>

<SearchForm>http://www.google.com/</SearchForm>

</SearchPlugin>[/xml]

Or you can add &nfpr=1 to the address bar of your search query. Example: https://www.google.com/search?q=term1+term2+term3**&nfpr=1** . Apparently, it removes links from the search results that Google think are good but that could possibly not contain any of your keywords.

Via http://ask.metafilter.com/181167/Google-is-driving-me-nuts

Classic application to disable autoruns and more: HijackThis.

Another option would be Autoruns from Sysinternals by Microsoft: Autoruns

Flash

Open Source

3D Modeler

http://www.19.5degs.com/3d.php

Sandy is an intuitive and user-friendly 3D open-source library developed in Actionscript 2.0 and now Actionscript 3.0 for Adobe Flash.

http://www.flashsandy.org/blog/

PaperVision3D – Open Source realtime 3D engine for Flash

http://blog.papervision3d.org/

Tutorial: http://rozengain.com/?postid=28&replyto=2296

Away3D – Open Source realtime 3D engine for Flash

http://www.away3d.com/

Commercial

Kaon’s vSpace™ – From lightweight web 3D product tours, to stills and videos for Flash applications, extraordinary PowerPoint presentations, and now 3D PDFs, vSpace tools make interactive solutions possible for everyone.

http://www.kaon.com/software/swindex.html

Google Earth Extension for AutoCAD (publish your 3D models from AutoCAD directly into Google Earth)

http://labs.autodesk.com/utilities/google_earth_extension_beta/

Content creation programs which support Collada

https://collada.org/mediawiki/index.php/Portal:Products_directory

Where to find Collada plugins: http://www.terathon.com/wiki/index.php?title=Collada_Plugins

SketchUp (you’ll have to unzip the .kmz file to find the .dae inside)

Blender 3D

Truespace

DX studio

Photoshop CS3 Plugin

AutoCAD 2008

3D Studio Max

Maya

Swift3D (Flash only)

http://www.terathon.com/wiki/index.php?title=Collada_Plugins

tag =3d&cad&animation

see-through inch-long glass frog

“Germany—The see-through skin of an inch-long glass frog reveals her eggs. Native to Venezuela, the frogs lay eggs in bushes and trees overhanging streams. Tadpoles hatch, then tumble into the current to be swept away.”

You can find the original at: http://ngm.nationalgeographic.com/visions-of-earth/visions-earth-2008. This one was slightly modified.

Using iptel and IPKall, you can receive free phone calls:

First, create a free account at iptel in the form of “user@iptel.org”. Configure your SIP device (mine was Handytone 386) with the IPTel.org login details. Then create a free US inbound number at IPKall with “SIP Phone Number” set as “your_user” and “SIP Proxy” set as “sip.iptel.org”.

Bonus: You can even use this free DID to verify/use a google voice account.

via DID Service Providers – voip-info.org.

I was trying to do a DHCP reservation but D-Link’s DIR-615 wouldn’t accept my phone’s MAC address because it didn’t start with “00”. Although the firmware was fixed since version 3.11NA (download update), here is what I did to work around this problem:

1. Using Firebug in Firefox, set a break-point at line 420 in file public.js
2. Edit temp_mac’s array value at position 0 from “fc” to “00” (“fc” or anything else)
3. Continue execution of script

Imagine going to the grocery store only once every 6 months. Imagine paying less than a dollar per meal. Imagine never washing dishes, chopping vegetables or setting the table ever again. It sounds pretty good, doesn’t it?  But can a human subsist on a constant diet of pelletized, nutritionally complete food like puppies and monkeys do? For the good of human kind, I’m about to find out. On June 3, 2006, I began my week of eating nothing but monkey chow: “a complete and balanced diet for the nutrition of primates, including the great apes.”

via The Monkey Chow Diaries.

Minimum requirements for a notebook/laptop as of november 19th 2010:

1. Screen size: >=13 inches
2. Battery life: >5 hours
3. Video Card: at least Nvidia ION2 or Intel HD
4. Screen finish: non-glossy
5. Case temperature: <95F @ palm rest and underneath
6. Keyboard: backlit
7. Networking: Ethernet, 802.11n, Bluetooth
8. Video out (vga or hdmi?)
9. Multi-card reader (at least Fuji’s xD)
10. Front facing webcam (back facing webcam would also be nice)
11. Decent speakers
12. Linux Compatible
13. SSD Hardrive

If, like me, you never use button mode you can set the location to text mode permenantly via the gconf editor. The easiest way to do this is to ALT+F2, type in gconf-editor and hit Run.In the configuration editor go to apps > nautilus > preferences then tick check always_use_locaion_entry. With that checked you’ll permenantly have the text based location bar.

via Text-based location address bar Ubuntu Lucid Lynx | Daniel Gibbs Journal.

From my experience, anything over 1000:1 for contrast ratio is marketing speak. over 1000:1 is great. Anything under a 5msGTG is fine for movies. 3msGTG is fine for gaming. This one is 2msGTG. Anything over 250 cd/m2 is great for brightness. This monitor has a 400 cd/m2. Resolution is perfect. 1900×1080 allows you to watch 1080p movies with no problem. Viewing angle is actually where you want to start to be for multiple people watching. a 170H allows for people to be as much as 85 degrees off the center, but you still can not see it from the sides, nor from too low or standing up looking down on it with the 160V. For a model this large, the dot pitch is ok, but if you are <3ft in front of it, you would look for something closer to a .260. this measures the distance from one red pixel to another red pixel.The one thing I look for that this does not have is the LED backlighting. It seems to be hard to get monitors this large with it and at least 1900×1080, but it is possible.The other things you have to have is HDCP support if you ever want to legally watch a HD movie on it, and a comprehensive warranty. Bear in mind that for some companies, a few dead pixels are enough to trigger a warranty, while some require quite a lot.The final thing to bear in mind is what you are going to be using the monitor for. For gaming and movies, a TN twisted nematic panel is ideal because of the low response times. If you are using it for spreadsheet and database work, you are looking for a VA vertical alignment panel. These include MVA multi-domain and PVA patterned, which may also come in higher-contrast AMVA advanced MVA and S-PVA super PVA versions. All these VA types reduce eyestrain.If you do professional photo editing or video editing, a monitor with an in-plane switching IPS panel is what you want. These monitors have the best LCD color accuracy plus wide viewing angles. Super-IPS S-IPS, premium-IPS P-IPS and horizontal-IPS H-IPS are the best-quality IPS panels. Eventually, we will have OLED displays that will rival the LCD for size and price, but this is where we are now.I generally try to stick with Samsung, LG, BenQ, Dell, Some HP monitors, Apple, and Viewsonic. I did have a 27.5 Hanns·G I got for real cheap, but I prefer my 2x 23″ LG W2486L s.The Hanns·G HZ281HPB was a pretty good monitor, but I like multiple monitors for the way I work better than one large monitor. It was less than $350, and it is less than $300 now. ViewSonic also makes the VA2702w for less than the Hanns·G, and their warranty is generally better, as is their customer service, however, dealing with Newegg, you should not have to deal with either, because if it is not DOA, it should be fine.

via What do I look for in a monitor? : hardware.

This simple 2 transistor audio transmitter will send the sounds picked up in a room to any FM radio tuned to the same frequency as the transmitter, somewhere between 80 and 100 Megahertz. The expected range will be at least 100 feet and could be substantially longer depending on the parts used and the quality of your final product. This circuit is based on one that has been around since the 1960s and published thousands of times, so it is tried, tested and guaranteed to work if you follow the instructions. Performance is “OK”, but since this is the one of the most basic transmitter circuits possible, don’t expect high quality or rock solid performance.

via LucidScience – Build the BASIC SPY TRANSMITTER – Page 1 of 16.

Edit prefs.js file located in Firefox’s profile directory to:

• Stop Referrers
• Stop all known communication with Google
• Disable SafeBrowsing
• Disable cache. (If you want a few cookies for your favourite sites, set browser.cache.disk.enable to true and then back to false when done).

• Stop writing to disk and instead only write to memory.

  *Accepts no Third party cookies and will not accept any new ones while browser.cache.disk.enable is false

• Turn off geolocation.

• Turn off DNS prefetching

• Turn off content prefetching

• Remove all application handlers

• Remove address bar searching and url making

• Remove google as default keyword search and disables that search

• Disable Download manager and form retention.

• Turn of javascript

Disabling javascript, referers and cookies completely is probably a bad idea (many trusted website can become unusable), one should probably use NoScript, ModifyHeaders or CookieSafe add-ons insteads.

# Mozilla User Preferences

/* Do not edit this file.

*

* If you make changes to this file while the application is running,

* the changes will be overwritten when the application exits.

*

* To make a manual change to preferences, you can visit the URL about:config

* For more information, see http://www.mozilla.org/unix/customizing.html#prefs

*/

user_pref("app.update.lastUpdateTime.addon-background-update-timer", 1287207323);

user_pref("app.update.lastUpdateTime.blocklist-background-update-timer", 1287207586);

user_pref("app.update.lastUpdateTime.microsummary-generator-update-timer", 1287207396);

user_pref("app.update.lastUpdateTime.places-maintenance-timer", 1287206929);

user_pref("app.update.lastUpdateTime.search-engine-update-timer", 1287287126);

user_pref("browser.cache.disk.enable", false);

user_pref("browser.cache.offline.enable", false);

user_pref("browser.contentHandlers.types.0.title", ");

user_pref("browser.contentHandlers.types.0.type", ");

user_pref("browser.contentHandlers.types.0.uri", ");

user_pref("browser.contentHandlers.types.1.title", ");

user_pref("browser.contentHandlers.types.1.type", ");

user_pref("browser.contentHandlers.types.1.uri", ");

user_pref("browser.contentHandlers.types.2.title", ");

user_pref("browser.contentHandlers.types.2.type", ");

user_pref("browser.contentHandlers.types.2.uri", ");

user_pref("browser.contentHandlers.types.3.title", ");

user_pref("browser.contentHandlers.types.3.type", ");

user_pref("browser.contentHandlers.types.3.uri", ");

user_pref("browser.contentHandlers.types.4.title", ");

user_pref("browser.contentHandlers.types.4.type", ");

user_pref("browser.contentHandlers.types.4.uri", ");

user_pref("browser.contentHandlers.types.5.title", ");

user_pref("browser.contentHandlers.types.5.type", ");

user_pref("browser.contentHandlers.types.5.uri", ");

user_pref("browser.download.manager.retention", 0);

user_pref("browser.formfill.enable", false);

user\_pref("browser.history\_expire_days", 0);

user\_pref("browser.history\_expire_days.mirror", 0);

user\_pref("browser.history\_expire\_days\_min", 0);

user\_pref("browser.history\_expire_sites", 0);

user_pref("browser.migration.version", 1);

user_pref("browser.places.importBookmarksHTML", false);

user_pref("browser.places.smartBookmarksVersion", 2);

user_pref("browser.safebrowsing.enabled", false);

user_pref("browser.safebrowsing.malware.enabled", false);

user_pref("browser.safebrowsing.malware.reportURL", ");

user_pref("browser.safebrowsing.provider.0.gethashURL", ");

user_pref("browser.safebrowsing.provider.0.keyURL", ");

user_pref("browser.safebrowsing.provider.0.lookupURL", ");

user_pref("browser.safebrowsing.provider.0.name", ");

user_pref("browser.safebrowsing.provider.0.reportErrorURL", ");

user_pref("browser.safebrowsing.provider.0.reportGenericURL", ");

user_pref("browser.safebrowsing.provider.0.reportMalwareErrorURL", ");

user_pref("browser.safebrowsing.provider.0.reportMalwareURL", ");

user_pref("browser.safebrowsing.provider.0.reportPhishURL", ");

user_pref("browser.safebrowsing.provider.0.reportURL", ");

user_pref("browser.safebrowsing.provider.0.updateURL", ");

user_pref("browser.safebrowsing.warning.infoURL", ");

user_pref("browser.search.defaultenginename", ");

user_pref("browser.search.order.1", ");

user_pref("browser.search.order.2", ");

user_pref("browser.search.suggest.enabled", true);

user\_pref("browser.startup.homepage\_override.mstone", "rv:1.9.2.10");

user_pref("extensions.enabledItems", "langpack-en-GB@firefox-3.6.ubuntu.com:3.6,ubufox@ubuntu.com:0.9rc2,{972ce4c6-7e08-4474-a285-3208198ce6fd}:3.6.10");

user_pref("extensions.lastAppVersion", "3.6.10");

user_pref("gecko.handlerService.defaultHandlersVersion", ");https://addons.mozilla.org/en-US/firefox/addon/967/

user_pref("gecko.handlerService.schemes.irc.0.name", ");

user_pref("gecko.handlerService.schemes.irc.0.uriTemplate", ");

user_pref("gecko.handlerService.schemes.irc.1.name", ");

user_pref("gecko.handlerService.schemes.irc.1.uriTemplate", ");

user_pref("gecko.handlerService.schemes.irc.2.name", ");

user_pref("gecko.handlerService.schemes.irc.2.uriTemplate", ");

user_pref("gecko.handlerService.schemes.irc.3.name", ");

user_pref("gecko.handlerService.schemes.irc.3.uriTemplate", ");

user_pref("gecko.handlerService.schemes.ircs.0.name", ");

user_pref("gecko.handlerService.schemes.ircs.0.uriTemplate", ");

user_pref("gecko.handlerService.schemes.ircs.1.name", ");

user_pref("gecko.handlerService.schemes.ircs.1.uriTemplate", ");

user_pref("gecko.handlerService.schemes.ircs.2.name", ");

user_pref("gecko.handlerService.schemes.ircs.2.uriTemplate", ");

user_pref("gecko.handlerService.schemes.ircs.3.name", ");

user_pref("gecko.handlerService.schemes.ircs.3.uriTemplate", ");

user_pref("gecko.handlerService.schemes.mailto.0.name", ");

user_pref("gecko.handlerService.schemes.mailto.0.uriTemplate", ");

user_pref("gecko.handlerService.schemes.mailto.1.name", ");

user_pref("gecko.handlerService.schemes.mailto.1.uriTemplate", ");

user_pref("gecko.handlerService.schemes.mailto.2.name", ");

user_pref("gecko.handlerService.schemes.mailto.2.uriTemplate", ");

user_pref("gecko.handlerService.schemes.mailto.3.name", ");

user_pref("gecko.handlerService.schemes.mailto.3.uriTemplate", ");

user_pref("gecko.handlerService.schemes.webcal.0.name", ");

user_pref("gecko.handlerService.schemes.webcal.0.uriTemplate", ");

user_pref("gecko.handlerService.schemes.webcal.1.name", ");

user_pref("gecko.handlerService.schemes.webcal.1.uriTemplate", ");

user_pref("gecko.handlerService.schemes.webcal.2.name", ");

user_pref("gecko.handlerService.schemes.webcal.2.uriTemplate", ");

user_pref("gecko.handlerService.schemes.webcal.3.name", ");

user_pref("gecko.handlerService.schemes.webcal.3.uriTemplate", ");

user_pref("general.smoothScroll", true);

user_pref("general.useragent.extra.firefox", "Firefox");

user_pref("general.useragent.vendor", "Windows NT 6.1");

user_pref("general.useragent.vendorComment", ");

user_pref("general.useragent.vendorSub", ");

user_pref("general.warnOnAboutConfig", false);

user_pref("geo.enabled", false);

user_pref("geo.wifi.uri", ");

user_pref("idle.lastDailyNotification", 1287209609);

user_pref("intl.charsetmenu.browser.cache", "UTF-8");

user_pref("javascript.enabled", false);

user_pref("keyword.URL", ");

user_pref("keyword.enabled", false);

user_pref("layout.spellcheckDefault", 2);

user_pref("network.cookie.cookieBehavior", 1);

user_pref("network.cookie.prefsMigrated", true);

user_pref("network.dns.disablePrefetch", true);

user_pref("network.http.sendRefererHeader", 0);

user_pref("network.prefetch-next", false);

user\_pref("places.last\_vacuum", 1287209609);

user_pref("privacy.clearOnShutdown.cache", false);

user_pref("privacy.clearOnShutdown.cookies", false);

user_pref("privacy.clearOnShutdown.sessions", false);

user_pref("privacy.sanitize.didShutdownSanitize", true);

user_pref("privacy.sanitize.migrateFx3Prefs", true);

user_pref("privacy.sanitize.sanitizeOnShutdown", true);

user_pref("urlclassifier.gethashnoise", 0);

user_pref("urlclassifier.gethashtables", ");

user_pref("urlclassifier.updatecachemax", 0);

Sources: Lock Down Firefox & #1227136 – Pastie.

DOWNLOAD: hdcp-0.3.tgz

COMPILE: make

TEST: ./hdcp -t

(If there is any "!" in the output, then there was an error)

BENCHMARK: ./hdcp -S

http://www.metafilter.com/95814/HDCP-master-key-is-valid-encryption-is-now-only-token-protection

HDCP MASTER KEY (MIRROR THIS TEXT!)

This is a forty times forty element matrix of fifty-six bit

hexadecimal numbers.

To generate a source key, take a forty-bit number that (in

binary) consists of twenty ones and twenty zeroes; this is

the source KSV. Add together those twenty rows of the matrix

that correspond to the ones in the KSV (with the lowest bit

in the KSV corresponding to the first row), taking all elements

modulo two to the power of fifty-six; this is the source

private key.

To generate a sink key, do the same, but with the transposed

matrix.

6692d179032205 b4116a96425a7f ecc2ef51af1740 959d3b6d07bce4 fa9f2af29814d9

82592e77a204a8 146a6970e3c4a1 f43a81dc36eff7 568b44f60c79f5 bb606d7fe87dd6

1b91b9b73c68f9 f31c6aeef81de6 9a9cc14469a037 a480bc978970a6 997f729d0a1a39

b3b9accda43860 f9d45a5bf64a1d 180a1013ba5023 42b73df2d33112 851f2c4d21b05e

2901308bbd685c 9fde452d3328f5 4cc518f97414a8 8fca1f7e2a0a14 dc8bdbb12e2378

672f11cedf36c5 f45a2a00da1c1d 5a3e82c124129a 084a707eadd972 cb45c81b64808d

07ebd2779e3e71 9663e2beeee6e5 25078568d83de8 28027d5c0c4e65 ec3f0fc32c7e63

1d6b501ae0f003 f5a8fcecb28092 854349337aa99e 9c669367e08bf1 d9c23474e09f70

3c901d46bada9a 40981ffcfa376f a4b686ca8fb039 63f2ce16b91863 1bade89cc52ca2

4552921af8efd2 fe8ac96a02a6f9 9248b8894b23bd 17535dbff93d56 94bdc32a095df2

cd247c6d30286e d2212f9d8ce80a dc55bdc2a6962c bcabf9b5fcbe6f c2cfc78f5fdafa

80e32223b9feab f1fa23f5b0bf0d ab6bf4b5b698ae d960315753d36f 424701e5a944ed

10f61245ebe788 f57a17fc53a314 00e22e88911d9e 76575e18c7956e c1ef4eee022e38

f5459f177591d9 08748f861098ef 287d2c63bd809e e6a28a6f5d000c 7ae5964a663c1b

0f15f7167f56c6 d6c05b2bbe8800 544a49be026410 d9f3f08602517f 74878dc02827f7

d72ef3ea24b7c8 717c7afc0b55a5 0be2a582516d08 202ded173a5428 9b71e35e45943f

9e7cd2c8789c99 1b590a91f1cffd 903dca7c36d298 52ad58ddcc1861 56dd3acba0d9c5

c76254c1be9ed1 06ecb6ae8ff373 cfcc1afcbc80a4 30eba7ac19308c d6e20ae760c986

c0d1e59db1075f 8933d5d8284b92 9280d9a3faa716 8386984f92bfd6 be56cd7c4bfa59

16593d2aa598a6 d62534326a40ee 0c1f1919936667 acbaf0eefdd395 36dbfdbf9e1439

0bd7c7e683d280 54759e16cfd9ea cac9029104bd51 436d1dca1371d3 ca2f808654cdb2

7d6923e47f97b5 70e256b741910c 7dd466ed5fff2e 26bec4a28e8cc4 5754ea7219d4eb

75270aa4d3cc8d e0ae1d1897b7f4 4fe5663e8cb342 05a80e4a1a950d 66b4eb6ed4c99e

3d7e9d469c6165 81677af04a2e15 ada4be60bc348d dfdfbbad739248 98ad5986f3ca1f

971d02ada31b46 2adab96f7b15da 9855f01b9b7b94 6cef0f65663fbf eb328e8a3c6c5d

e29f0f0b1ef2bf e4a30b29047d31 52250e7ae3a4ac fe3efc3b8c2df1 8c997d15d6078b

49da8b4611ff9f b1e061bc9be995 31fd68c4ad6dc6 fd8974f0c506dd 90421c1cd2b26c

53eec84c91ed17 5159ba3711173b 25e318ddceea6a 98a14125755955 2bb97fd341cea2

3f8404769a0a8e bce5c7a45fb5d4 9608307b43f785 2a98e5856afe75 b4dbead4815cac

d1118af62c964a 3142667a5b0d14 6c6f90933acd3d 6b14a0052e2be4 1b1811fda0f554

12300aa7f10405 1919ca0bff56ea d3e2f3aad5250c 4aeeea5101d2ec 377fc499c07057

6cb1a90cdb7b11 3c839d47a4b814 25c5ac14b5ec28 4ef18646d5b9c2 95a98cc51ebd3b

310e98028e24de 092ffc76b79f44 0740a1ca2d4737 b9f38966257c99 a75afc7454abe4

a6dd815be8ccbf ec2cac2df0c675 41f7636aa4080f 30e87b712520fd d5dfdc6d3266ac

ee28f5479f836f 0bf8ee2112173f 43ae802fa8d52d 4e0dffd36c1eac 3cbda974bb7585

fb60a4700470e3 d9f6b6083ef13d 4a5840f02d0130 6c20ef5e35e2bf dad2f85c745b5b

61c5ddc65d3fc9 7f6ec395d4ae22 2b8906fb3996e2 e4110f59eb92ac 1cb212b44128bb

545afda80a4fd1 b1ffea547eab6b fac3d9166afce8 3fe35fe17586f2 9d082667026a4c

17ffaf1cb50145 24f27b316acfff b6bb758ec4ad60 995e8726359ef7 c44952cb424035

5ec53461dbd248 40a1586f04aee7 49ea3fa4474e52 c13e8f52c51562 30a1a70162cfb8

ccbada27b91c33 33661064d05759 3388bb6315b036 0380a6b43851fb 0228dadb44ad3d

b732565bc37841 993c0d383cfaae 0bea49476758ac accc69dbfcde8b f416ab0474f022

2b7dbcc3002502 20dc4e67289e50 0068424fde9515 64806d59eb0c18 9cf08fb2abc362

8d0ee78a6cace9 b6781bd504d105 af65fab8ee6252 64a8f8dd8e2d14 cb9d3354e06b5b

53082840d3c011 8e080bedab3c4c e30d722a455843 24955a20397c17 82495c1c5114e8

656e71c31d813d 1f0a6d291823a1 6327f9534353fa b89529c2f034fb 70e9b12205c7b3

a06c87969407a2 520bfa2fe80f90 da1efc3d345c65 313936ec023811 a8cc87128be2fa

4cd0e8645ee141 be7975519e2b63 9543d23113c2a8 3d87b0da033f22 df0464c704e9d4

7e1a30947e867e 014ae464b37935 5c4babf689fa4e c4aec0cb01cc35 328c0e4a0230e4

fdacb93b419594 26deefc8a553e6 6e75a2d790cb55 2c4554518f7396 94b77184cb145d

95f883f620a8bb edff42866a2783 7b4ee6304b711d ed56e077a4b9fb c4e60e687ff6c3

0cbf144b8f64d5 023dd10a35eddd beaa3323e999c6 d2e016b31c38c4 8d2917a888f799

18c3abd28e736b 8d38e69b4966cc 624db0143dd2e7 5e2fa510f632b7 ee6e64d45b139a

a1c6d852e74be7 429843b9e6bb7e db9ab07c8dc267 9efa092299f071 dcca9e0e61e960

94406fac95f1d8 d19122f3f88782 1b11a662e9c83f d161fd6fb7f032 89f7d984da9d48

a3583fea45fe58 885e2c4839e254 47e87235f713b1 f4732e05b71aee ae026d063f4349

0a481d2db197af abfce1039d4ac0 4a6b89d2d1aeac 0842eb7178cc53 b82ce2835f1937

3b4002ca21d6b6 e64a78a78abb27 8bd6142ad04526 e035dacb23624a 4cf80110135771

7a52fafc92745e efa28a290ea782 735617cd8b0221 b095e9f4b286a5 021e9ba0727645

3e58e9ec16ed1c d7732bb5ba99a6 374bde43fa89a9 cb83e5ef2e4d04 1da4f73566d134

e01da194625c25 d62018764d7473 64643721313d24 5a01badd970941 481c9578781414

a4d3faa92d1fef bd4b247d37862a 5332a7ca3c2ca6 393ee51989d5a9 01a6e564040d37

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760c159ce2a619 d58d83243fe0ba 1c1e5e83aa79b5 75c8bbae9baabf 2ed91bdb632ae8

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2f05fd5ca0230b 1008345afdd18c dac73c313ace60 346d535e500b62 12e6357496459b

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9c55b95581c1d5 e1fb86e6219639 c72a22d8404448 95dc5d7b966027 457f3fec730d5d

469cd82a2b3cec 021d9de560b8d6 85b4d126933886 c8265dafb87325 8741d99af7f420

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c657798a3aebd1 ce9c37c494cfc8 156efce8330e42 d0d95860d39040 dfb0fb66f814c4

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cdabffa646baca 7a6c7bb29875f7 1a87a53a2139c1 1ecf7ae823158a b1087bf595f7f2

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bb99fd5bfaebc1 665902d08610e8 8af0db91b80b6e 00d4995f9a6ce8 1d503d26442bd9

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1446a05c1023ab 459c93a9f5ad37 1ea5f5aa4060b2 a48215350fcd60 ac21e2a4729a51

f18cf87ecf430f 0fd48c241ac6bc 33964cd2e3d9ec 8bebeffc2e848e bb84a5c2ea9b0e

311f20ff7ce601 752573f4effe98 79dbe4d184dce5 6bb04def99d322 7d2d5f23c2475b

7f93f7dbddf04e fff303e751fffe 08d205f8999a3d 5750d14f75e056 1107a3f96ca8e9

f62b50c8ad9f20 53e7fcc55d72d8 6345dec1054cb6 01d52c21dc654a aa0bd78e39c594

2265b675381cd5 57cc03dd65f821 1fa373049059a8 9885886b48085f 8357ab98192a14

5bb6cfbf84048b 5cf862f25ff6ab c9382e36ab2dbd 2357b5ade91fcf 2db77558ceef24

d4a0cb3ba50a2a 12c3cb633dfe47 db805410168807 a5e635ac766e1a 25252810f49fad

cae296fce18ed4 b9932d5822c519 4b7006cc54ea84 2546d761d284cf 2346d0a11b1ed9

81ce0d028c4474 c8002fd0315372 8670db1a6ad6eb 4c7f942260e9c9 822bb2c423cc53

e3b67febea3672 59c24223d913c3 6f4b196f69400f 51bfb6cc7f3603 fb9fbef84ffaf4

7c1632636806f6 a50ec42076931f f68b2be9e5e7ad 7603302a518bd4 d7cd9bb97ffa3c

acf1faaebf7412 f55d55d548bd86 5b34112ed53d06 1b58692e1e33b7 cc7e3cb6d32fe2

8f7b35c14a744f 9a4ed599399554 8eb369e71641af d4a6d1a5c74123 8cc7ec376acf04

ec0a470647b248 2fd9e8eea1f10e 94439285677960 4d11f6e6a426e0 06378817230b68

ec14f2df152cb7 199a8c0bd5f05d ecad5aab44ac2b ca87ab2ba6e905 69c0bf2acdb36c

d66279737bc807 4dd946eb19d81b 4e9c473b5e9846 5a016f7ca86f9d d02c2b7dca744a

Now get “instantly” bad results with Google Instant, since 9/08/2010.

I’d rather not have this distraction (so I turned it off). Plus, if they really wanted you to save time, they would give you more then 10 results per page (as the default setting).

Spiceworks: complete network management software, helpdesk, PC inventory tools & IT reporting solution (for free).

• Full-Body Scan Technology Deployed In Street-Roving Vans
• The Government’s New Right to Track Your Every Move With GPS without a warrant by installing a tracking device on your car while it’s in your driveway.

I had this error:

Permission denied: .htaccess pcfg_openfile: unable to check htaccess file, ensure it is readable

I fixed it by changing all directories (and sub-directories) permissions using this command: bash-3.00$ find ./ -type d -exec chmod 755 {} \;

** Warning: This command changes all sub-folders permissions. **

Chemical Injection Methods for Irrigation.

• http://sourceforge.net/projects/licenseplate/
• http://javaanpr.sourceforge.net/ (this one needs to be adapted to US license plates)

1. Execute the following commands:

   :~$ sudo apt-get install pulse-audio-module-raop paprefs
   :~$ paprefs
   

2. Make these changes:

   check "Make discoverable network sound devices available locally"
   check "Make discoverable Apple Airtunes sound devices available locally"
   

3. Reboot (or restart pulseaudio)

4. Go to Sound Preferences – Output (by clicking on the speaker in the taskbar)

5. Select Base Sation as output

6. Start your favorite radio station (Pandora?), mp3, etc..

While “Addthis” is supposed to be an helper, it is an annoyance for me because when you hover the mouse over it, a window popups and stays there until you manually close it.

An easy way to block it if you use Adblock plus, is to add the following filter (Tools – Adblock Plus Preferences – Filters – Add Filter..):

.addthis.com/*

Xiaolin Wei and Jinxiang Chai developed a program that tracks human bodies in videos to create animated 3D models (which can then be viewed from any angle). It will be presented at Siggraph in Los Angeles.

Download a PDF or download the video.

Via New Scientist.

If you want Excel to keep a field’s leading zeros when opening a CSV file using Excel, you can change it to =”value”.

For example, if you have a row with 4 values that looks like this:

test,00016102,test,test

Change it to:

test,="00016102",test,test

BP brands to boycott include Castrol, Arco, Aral, am/pm, Amoco, and Wild Bean Cafe

Build Your Own Tri-Copter

• Shrediquette HowTo by W. Thielicke.pdf

via http://www.tomsguide.com/us/tricopter-diy-gadget

A few programs:

• Tor: “enabling Internet anonymity by thwarting network traffic analysis”
• Privoxy: “It has filtering capabilities for protecting privacy, modifying web page data, managing cookies, controlling access, and selectively removing content such as ads, banners and pop-ups.”
• Enigmail: “It enables you to write and receive email messages signed and/or encrypted with the OpenPGP standard.”
• Off-the-Record Messaging (OTR): “cryptographic protocol that provides strong encryption for instant messaging conversations”

An interesting talk on Youtube:

http://www.youtube.com/watch?v=kpHWnHxmnXg (Part 1)

http://www.youtube.com/watch?v=QOEMv0S8AcA (Part 2)

Using Firefox and Adblock Plus, you can block some unwanted “features” of Facebook: http://blog.makezine.com/archive/2010/05/how-to_avoid_facebook_malware.html. For example, it should prevent Facebook from sharing information with other websites.

Or if you want, you can completely delete your account, thanks to the The Consumerist. You could also just deactivate your account if you plan on re-using it.

How-to move the minimize, maximize and close buttons to the right of the window in Ubuntu 10.04 (Lucid Lynx).

1. Press ALT-F2, type: ‘gconf-editor’ and click Run
2. Go to: ‘apps > metacity > general’ and right-click on ‘button_layout’ and choose “Edit Key….”
3. Type in ‘menu:minimize,maximize,close’ and click OK
4. That’s it.
   

Find answers at Naturalization Test: Civics (History and Government) Questions with MP3 Audio.

Download all mp3 files to burn an audio CD or wait for your biometric appointment and receive a “free” CD.

Start slef-test at USCIS!

Using this method, it records every sounds going to your sound card, so you might want to disconnect any microphone (or turn them off) and stop using any program that generate sounds while you are recording.

1. Download and install Audacity and Lame for Audacity (lame is only required if you want to save the songs as MP3 files)
2. Start Audacity and click record
3. Start playing the music at Pandora
4. Try to record long enough to have complete songs, you can record as many songs as you like in the same file (as HD space allows), you can split them later
5. Push Stop in Audacity at anytime
6. To split the recording in multiple songs, follow these directions (if you want to keep it as-is, just choose File – Export):
   1. Click to place the cursor at the start of the first song.
   2. Choose “Add Label at Selection” from the Project menu. If you wish, you can type the name of the song.
   3. Repeat steps 1 and 2 for each song.
   4. When you are finished, choose “Export Multiple” from the File menu. When you click the “Export” button, Audacity will save each song as a separate file, using the format and location you choose.(if you choose MP3 output, it will ask you for Lame’s DLL which is located in “c:\Program Files\Lame for Audacity&#8221; if you use Windows)
7. Done!

Note: it might not be the easiest way right now to rip music from online radio, but it is the one that is the most likely to still work tomorrow.

Goldman Sachs e-mails show bank sought to profit from housing downturn

By Zachary A. Goldfarb

Washington Post Staff Writer

Saturday, April 24, 2010; 11:43 AM

But the prevailing view of executives, as described in the paper, was not that the housing market was headed into a prolonged decline. They were not looking to short the market overall. That would have entailed making such large bets against mortgage securities that the firm would turn a profit if the market as a whole collapsed, which in fact it did.

The document acknowledges that Goldman at times shorted the overall market but describes those periods as temporary while the firm was rebalancing its portfolio to limit losses if mortgage securities were to lose more value.

At some moments, executives were actually considering making new bets, buying potentially undervalued securities that could pay off when the mortgage market turned around. A day after Viniar met with traders and risk managers, he wrote to Tom Montan, co-head of the securities division, saying, “There will be very good opportunities as the markets goes into what is likely to be even greater distress and we want to be in position to take advantage of them.”

The back-and-forth over which way the market would go, and how to invest in it, continued into 2007.

On March 14, Goldman co-president Jon Winkelried e-mailed Sparks and others asking what the bank was doing to protect itself from a decline in prices of not just subprime loans, but also other loans traditionally considered less risky. Sparks replied that the firm was trying to have “smaller” exposure to those loans also.

But managing director Richard Ruzika took issue with that answer a few days later, saying that Goldman might be overestimating the decline in housing. “It does feel to me like the market in general underestimated how bad it could get. And now could be overestimating where we are heading,” he wrote in an e-mail. “While undoubtedly there will be some continued spillover, I’m not so convinced this is a total death spiral. In fact, we may have terrific opportunities.”

Sparks later endorsed that optimistic view, suggesting as late as August 2007 that Goldman begin buying more mortgage securities.

The bank did not immediately follow that path, and by Nov. 30, 2007, Goldman had largely canceled out its exposure to subprime mortgages by increasing its bets that the market would continue to slide, according to the document.

But by that account, Goldman also continued to have $13.5 billion in exposure to safer, prime mortgages. That cost the bank. In 2008, the firm lost $1.7 billion on investments in residential mortgages.

To avoid getting the error “Your operating system does not meet system requirements”, I had to use User Agent Switcher to download the spreadsheet at http://office.microsoft.com/en-us/templates/TC300022771033.aspx for electric meter logging for energy efficiency. Then I used cabextract to extract the .cab file and used Open Office to view the 30002277.xltx file. Here it is saved using Open Office’s ODS format: electricity_tracking.

The Boxee Box by D-Link

Vudu XL

Popcorn Hour C-200

LG BD390

PlayOn!HD

Roku

Mvix Ultio

Netgear EVA2000

Neuros Link

Another option would be to use an Home Theater PC (HTPC), more expensive but also more versatile. [

http://www.linuxtech.net/features/best_linux_htpc_motherboards.html][10] has some good tips for building your own.

I fixed it by installing libsdl1.2debian-pulseaudio (which replaces libsdl1.2debian-alsa). So it might be worth a try if you get sound problems with any other programs.

Source: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/372843

Interesting thoughts:

One:

“I have the largest seashell collection on the planet. I keep it

scattered on beaches around the world.” – Steven Wright

Two:

Coveting possessions is unhealthy. Here’s how I look at it:

All of the computers on Ebay are mine. In fact, everything on Ebay is

already mine. All of those things are just in long term storage that I

pay nothing for. Storage is free.

When I want to take something out of storage, I just pay the for the

storage costs for that particular thing up to that point, plus a

nominal shipping fee, and my things are delivered to me so I can use

them. When I am done with them, I return them to storage via

Craigslist or Ebay, and I am given a fee as compensation for freeing

up the storage facilities resources.

This is also the case with all of my stuff that Amazon and Walmart are

holding for me. I have antiques, priceless art, cars, estates, and

jewels beyond the dreams of avarice.

The world is my museum, displaying my collections on loan. The James

Savages of the world are merely curators.

Quote from

http://www.metafilter.com/65284/Collect-em-all#1862024

Number three: Watch www.aetv.com/hoarders for a few episodes and that might cure you!

If your Ubuntu installation (or any other linux distribution that has a liveCD) is broken and can’t boot because of a faulty update, you can try to update your installation after booting from the LiveCD.

Start a terminal and use these commands (/dev/sda2 might need to be changed to match your configuration, you can use fdisk to figure out which partition is your main one):

sudo mkdir /media/karmic  
sudo mount /dev/sda2 /media/karmic  
sudo mount -o bind /proc /media/karmic/proc  
sudo mount -o bind /dev /media/karmic/dev/  
sudo cp  /etc/resolv.conf /media/karmic/etc/resolv.conf  
sudo chroot /media/karmic apt-get update  
sudo chroot /media/karmic apt-get upgrade  
sudo chroot /media/karmic apt-get dist-upgrade

There is lot’s of different cheap design for building your own 3D scanner, here are a few:

• SCAN Z
• Building a Homemade Laser Line Scanner (CS6998, Spring ’01)
• Build Your Own 3D Scanner: Optical Triangulation for Beginners
• Scanalicious: A 3D Scanner GUI Client and Micro-controller Software
• 3-D Laser Scanner
• Scanalicious: A 3D Scanner for You and Me
• 3D Scannerless Scanning for Fabbers
• Splinescan: Open Source 3D Scanning
• NXT™ 3D scanner
• DAVID-laserscanner: Low-Cost 3D Scanner for Everyone!
• stripo-3DSCAN Light
• Structured Light 3D Scanning
• Milkscanner: Displacement Mapping
• Using Meshlab to Clean and Assemble 3D Scan Data
• Build your own 3D scanner
• 3D Photography on your desk
• Build Your Own 3D Scanner: Optical Triangulation for Beginners
• Project DASER: Introduction
• Kinect-fusion Open-source Point-cloud

Using Digi Watchport/H USB Serial Humidity/Temperature Sensor in Linux

Ubuntu 9.04 has everything you need except for minicom. So all I had to do was to:

• plug it in

  dmesg should get you the following output:

  usb 2-9: new full speed USB device using ohci_hcd and address 50
  usb 2-9: configuration #1 chosen from 1 choice
  io_ti 2-9:1.0: Edgeport TI 1 port adapter converter detected
  usb 2-9: Edgeport TI 1 port adapter converter now attached to ttyUSB0'
  

• Install minicom:

  sudo apt-get install minicom
  

• Edit minicom settings:

  minicom -s
  

  1. Change the ‘Serial Device’ to ‘/dev/ttyUSB0’

  2. Change the ‘Bps/Par/Bits’ field to ‘9600 8N1’, (9600 baud, 8 bits, no parity, 1 stop bit). These are the default settings used by the Linux kernel; they can, if necessary, be overridden from the kernel command line by adding extra parameters to the ‘console=’ option. See ‘kernel-parameters.txt’ and ‘serial-console.txt’.

  3. Turn off both ‘Hardware Flow Control’ and ‘Software Flow Control’.

  4. In the ‘Modem and dialing’ menu, remove the ‘Init string’ and ‘Reset string’ completely if required.

  5. Save your new config

  6. start minicom

  7. more details

• Use one of the following commands:

Download Watchport’s manual

Now all I need is a perl script to automate the posting of these values to twitter?

Here is a nice hardware chart:

Here is a larger version. If this link is down, try http://www.google.com/search?q=Computer_hardware_poster_1_7_by_Sonic840

I tried many other add-ons and extensions, but these are the ones I can’t live without:

1. Adblock Plus
2. No Script
3. Firebug (mostly for web development)

Bonus:

1. ShareMeNot
2. HTTPS Everywhere

1. First, do edge detection using GIMP (or any other image editing program)
2. Then, convert to SVG using Inkscape (File – Import, then Path – Trace Bitmap)
3. Save as a DXF
4. Fix DXF in AutoCAD (because it probably created too many lines)

See also , an old screenshot I took from 2006.

Perl; The Ternary Operator

The ternary is actually a sequence of operators. The operator is used like this:

CONDITION-PART ? TRUE-PART : FALSE-PART

which is shorthand for the following statement:

if (CONDITION-PART) {
    TRUE-PART
} else {
    FALSE-PART
}

Example: If $firstVar is zero, then assign $secondVar a value of zero. Otherwise, assign $secondVar the value in the first element in the array @array.

$secondVar = ($firstVar == 0) ? 0 : $array[0];

via Perl 5 By Example.

My first attempt at using the Arduino (Duemilnove). This sketch is based on this and that but mine uses 2 LEDs, one for the sensor and one for the feedback. And instead of getting bright when more ambient light is present, it turns OFF if ambient light is bright, stays ON in the dark and blinks if it’s in between.

//
// This example shows one way of using an LED as a light sensor.
// You will need to wire up your components as such:
//LED #1:
// + digital2 (N side)
// |
// <
// > 100 ohm resistor
// <
// |
// |
// -----
// / \ LED #1, 5mm, clear plastic is good (or translucent green lense)
// -----
// |
// |
// + digital3 (P side)
//
//////////////////////////////////
//LED #2  (only required if you don't have the on-board LED on pin 13):
// + digital13 (P side)
// |
// |
// -----
// / \ LED #2
// -----
// |
// |
// + Ground
//
// What we are going to do is apply a positive voltage at digital2 and
// a low voltage at digital3. This is backwards for the LED, current will
// not flow and light will not come out, but we will charge up the
// capacitance of the LED junction and the Arduino pin.
//
// Then we are going to disconnect the output drivers from digital2 and
// count how long it takes the stored charge to bleed off through the
// the LED. The brighter the light, the faster it will bleed away to
// digital3.
//
// Then just to be perverse we will display the brightness back on the
// same LED by turning it on for a millisecond. This happens more often
// with brighter lighting, so the LED is dim in a dim room and brighter
// in a bright room. Quite nice.
//
//
#define LED1_N_SIDE 2 // original code uses pin 2
#define LED1_P_SIDE 3 // original code uses pin 3
#define LED2 13 // LED 2 is on-board or external on pin 13 and ground
//
// -1 = very dark ; 1 = very bright
int extreme = 0;
//
void setup() {
pinMode(LED1_N_SIDE, OUTPUT); // N side is output or input but starts w/ output
pinMode(LED1_P_SIDE, OUTPUT); // P side is alway output pin (drive low or high)
pinMode(LED2, OUTPUT);
}
//
void loop() {
unsigned int waitDischarge, extenLimit;
//
// Apply reverse voltage, charge up the pin and led capacitance
digitalWrite(LED1_N_SIDE,HIGH);
digitalWrite(LED1_P_SIDE,LOW);
delay(30);
//
// Isolate the pin 2 end of the diode
pinMode(LED1_N_SIDE,INPUT);
digitalWrite(LED1_N_SIDE,LOW); // turn off internal pull-up resistor
//
// Turn LED on if ambient light is very dark or medium
if (extreme <= 0) {
    digitalWrite(LED2,HIGH);
}
//
// Count how long it takes the diode to bleed back down to a logic zero
for ( waitDischarge = 0; waitDischarge < 65534; waitDischarge++) {
  if ( digitalRead(LED1_N_SIDE)==0) {
    // very dark (you might need to sligthly change this number depending
    // on the color of the lense of LED #1 for example)
    if ( waitDischarge > 6 ) extreme = -1; 
    // very bright (you might need to sligthly change this number depending
    // on the color of the lense of LED #1 for example)
    else if ( waitDischarge < 3 ) extreme = 1;
    else extreme = 0;
    break;
  }
  delay(30); // to avoid going above 65534
}
//
// Turn LED off if ambient light is very bright or medium
if (extreme >= 0) digitalWrite(LED2,LOW);
delay(200);
}

By using the ALSA / OSS wrapper:

~$ sudo apt-get install alsa-oss    
~$ aoss "app_that_usually_use_OSS"

Mac Netbook.

Here is a list of devices where you might be able to find stepper motors:

• floppy disk drives
• flatbed scanners
• printers
• plotters
• shredders
• faxes
• photocopiers
• robots
• webcams
• watches
• really old harddrives
• backup tape drives

Large stepper motors can be found in automated industrial equipment.

How-To Change The Default Sound Card in Slackware Linux

My case: I have an on-board sound card that I use for everything except for Skype, where I use my Logitech ClearChat Wireless USB Headset. It is easy in Skype to select a different sound device. So I needed to set my on-board sound card as the default output for everything else.

If they both use a different kernel module you can easily make sure the right one is the default card.

Find out what module is being used for your soundcards:

cat /proc/asound/modules

On my computer this gave

Sound card 0 is the default one (snd_usb_audio in this case). This is the module’s name.

You can’t assign card 0 because whichever card get’s loaded first get # 0. So, you have to assign # 1 to the one you don’t want as the default card. This can be done by adding one simple line to /etc/modprobe.d/sound (create it if it doesn’t exist):

options name_of_offending_module index=1

So, in my case this would be

options snd_usb_audio index=1

Reboot and try

via HOWTO make one soundcard default.

From the command line:

-bash-3.00$ find ./ -type f -exec chmod 600 {} \;
-bash-3.00$ find ./ -type d -exec chmod 700 {} \;

Product Page

Ed Ulbrich shows how Benjamin Button got his face | Video on TED.com.

ToneMatrix.swf (application/x-shockwave-flash Object).

http://thepiratebay.org/

While trying to burn a 900mb ISO file on a dual layer DVD, I got the error. “more than 50% of space will be wasted! use single layer media for this recordiong”. I avoided it by burning a multi-session DVD (e.g.: growisofs -Z /dev/hdc -R -J /home/user/files/*). Another solution would be to add more files to the iso (using isomaster) until it is more then 50% of the capacity of a dual-layer DVD.

Debug output:

growisofs: 7.1
growisofs
-----------------------
Executing 'builtin_dd if=/dev/fd/0 of=/dev/hda obs=32k seek=0'
:-( more than 50% of space will be *wasted*!
use single layer media for this recording
growisofs command:
-----------------------
/usr/bin/growisofs -Z /dev/hda=/dev/fd/0 -use-the-force-luke=notray -use-the-force-luke=tty -use-the-force-luke=tracksize:437396 -dvd-compat -speed=2.4 -use-the-force-luke=bufsize:32m 

If you need to select the whole data region (it might included some empty cells) in Excel without selecting all cells (<CTRL>+<A>), click on any cell inside that group and then type: <CTRL>+<SHIFT>+<8>. It is very useful for large data sets.

You should then get something like this:

Try http://www.rnib.org.uk/xpedio/groups/public/documents/publicwebsite/public_rnib003503.hcsp for more keyboard shortcuts.

With my Logitech Quickcam Pro 9000, I use this:

Live video:

mplayer -fps 30 driver=v4l2:width=960:height=720:device=/dev/video0 tv://

Or to grab a single jpeg frame from the command line:

mplayer driver=v4l2:width=960:height=720:device=/dev/video0 tv:// -nosound -vo jpeg -fps 1 -frames 1

When starting Skype 2.0.0.72 from the console in Ubuntu 8.10, I got the following error:

“ALSA lib pcm.c;2196:(snd\_pcm\_open_noupdate) Unknown PCM cards.pcm.hdmi”.

I fixed it by commenting the following line in /usr/share/alsa/alsa.conf.

# pcm.hdmi cards.pcm.hdmi

Texturized Vegetable Protein (TVP), also known as Textured Soy Protein (TSP) is a good meat replacement for several reasons:

• texture similar to ground beef or sausage (unlike tofu)
• low cost
• high protein
• low fat
• long shelf life

Buy Textured Soy Protein from iHerb

USE CODE: ALE408 to get $5.00 off your first purchase (no minium)

The best solution/workaround I found is to create an executable script (eg: start_firefox) with the following lines (1, 2):

#!/bin/sh<br />
export LD_PRELOAD="/usr/lib/libGL.so.1"
/home/alexb/apps/firefox/firefox

chmod +x start_firefox
./start_firefox'

Another solution is to disable the hardware acceleration in Flash (probably a bad solution):

1. Right click on the embedded Flash window inside Firefox (flash video)
2. Settings…
3. go to the first tab
4. un-check “Enable hardware acceleration”

Now you should be able to go full screen…

Here is the version of the software I was using.

• Flash v10,0,15,3
• Firefox 3.0.5 and 3.5.2
• NVIDIA video driver 180.22
• Kernel 2.6.27.7-smp

Safer Security Camera System with Motion

Now that you have your motion activated security camera system, you could make if safer by uploading the captured images automatically to a remote server just in case something happens to your computer. I’m using Slackware Linux but the setup should be very similar on other distributions.

1. Create an executable batch file containing the following (pico ~/batch_file):

   rsync -avz /usr/local/apache2/htdocs/cam1 destinationserver.com:~/
   

2. Edit /etc/motion.conf and add/uncomment the following line

   on_event_end /home/user/batch_file
   

3. Edit ~/.ssh/config (create the .ssh folder if it doesn’t exist) and add the following lines to it:

   Host destinationserver.com
   HostName destinationserver.com
   IdentityFile ~/.ssh/id_dsa
   User your_user_name
   

Install and setup keychain so that ssh doesn’t ask for your pass-phrase every time it tries to connect. Take a look at this keychain/ssh-agent tutorial

You can use a webcam like the one listed below, which features infrared lights for improved night vision (and it is USB so don’t need any special hardware for composite input).

Infrared Night Vision Security Camera

1. Add your module to /etc/modules

   # /etc/modules: kernel modules to load at boot time.
   #
   # This file contains the names of kernel modules
   # that should be loaded at boot time, one per line.
   # Lines beginning with "#" are ignored.
   saa7134
   

2. Add options saa7134 card=42 at the end of /etc/modprobe.d/options

   # Enable double-buffering so gstreamer et. al. work
   options quickcam compatible=2
   # Default hostap to managed mode
   options hostap_pci iw_mode=2
   options hostap_cs iw_mode=2
   # Stop auto-association.
   # LP: #264104
   options ipw2200 associate=0
   # XXX: Ignore HPA by default. Needs to be revisted in jaunty
   options libata ignore_hpa=1
   options saa7134 card=42
   

• GLOBALSAT BU353 Waterproof USB GPS Receiver
• GARMIN 010-00321-00 GPS 18 Deluxe USB Sensor

The Globalsat BU-353 would be my first choice, it has very good reviews and it is waterproof.

There are only 2 files you need to backup:

• signons.sqlite
• key3.db

You can find those in your Firefox profile:

Linux

~/.mozilla/firefox/xxxxxxxx.default/

Windows

1. Click the Windows Start button, and select Run…
2. Type in %APPDATA%\Mozilla\Firefox\Profiles\ then click OK.

You can then copy those file to another computer in your Firefox profile to use them.

The instructions for this project are incomplete, but you basically step on the circuit on each tile with a conductive sole shoe (you could use aluminum tape glued under your shoe) to close the circuits. I hope to be able to add more detailed instructions and pictures soon. For now, you can check out http://royconejo.host.sk/, it was heavily inspired from it.

WARNING: Before anybody attempts to build this dance pad, please note that after a while I suddenly started having intermittent problems (it stops working). If I unplug it and plug it back, it starts working fine again for a while. I think the problem is caused by the wires connected to the circuit board being too long. It might change the inductance and/or capacitance too much and the circuit board can’t handle it. I don’t know much about electronics so If anyone know how to fix this, please let me know. I tried with a USB circuit board and a USB board with a PS/2 adapter without any luck.

Finished Dance Pad

Tools and Supplies List

• Tacker
• Wire Strippers
• Screw Driver & Screws
• Circular Saw
• Jigsaw
• Utility Knife
• Drill
• Drill bit (from ¹⁄₁₆″ to ¹⁄₈″ (1.5mm to 3mm) should do)
• Plyers
• Soldering Iron & Solder
• Sand Paper
• Pen
• Framing Square
• Hammer
• Punch
• Plywood
• Copper Wire (I stripped Cat5 network cable and phone cable)
• Measuring Tape
• Paint
• Cardboard
• 8×11 Paper
• Aluminum Tape
• Level (4ft)
• Large Tape
• Clamps
• Shoes with aluminum tape taped underneath (to create the shorts when you dance)
• USB Keyboard (or PS/2 if you current keyboard is not PS/2) Note: A few tools and supplies are optional but they either make the job easier or the dance pad prettier.

Get keyboard circuits (find out how we will use them at http://www.instructables.com/id/S9XKHQXFDIY309O/)

keyboard opened

keyboard's circuit board

dance pad painted w/o wires

• Cut plywood Mine is 37″ x 37″ not including the header (where the circuit board is going to be installed

• Paint the hole plywood sheet black

• Stick strips of aluminum paper on edges and to create a grid with 9 even squares

• Paint symbols using red spray paint and stencils

  

  spray paint stencil

  

  spray paint stencil 1

wires_underneath_1

wires_underneath_2

wires_underneath_3

wires_underneath_4

finished_dance_pad_1

finished_dance_pad_2

…DOOM 1, a 15 year old game converted to flash, is jerky on a fairly recent computer.

It’s still worth a try, play now.

Verismo’s VuNow allows you to stream Internet video content directly to your TV. The MediaMVP was a similar device, but was used to get content off your computer (unless you use something like MVPMC). According to Verismo, it’s simple to use and easy to install. We can find out on December 15th for $99.

VuNow™ Features

Verismo’s VuNow is the only solution that provides everything a consumer wants. Access to the broadest online content, simple to use, easy to install, and compact in size — all at an affordable price.

• A Standard Definition and a High Definition model of the VuNow PoD that can connect to any TV

  • Support for wired or wireless connectivity
  • Navigation using a TV-friendly and intuitive User Interface
  • Watch YouTube™ videos on TV by categories
  • Search for videos with the powerful built-in video search engine
  • Choose from a large selection of movies and download from CinemaNow™
  • Download videos using BitTorrent™ protocol
  • Watch videos directly from popular websites by categories
  • Watch Live TV Channels from around the world
  • Access to Personal Media such as video, music, and photos from the home network stored on a PC, Networked Attached Storage device, or even on a connected USB storage device
  Verismo’s VuNow
  

Mcor’s http://www.mcortechnologies.com/index.html 3D printerhttp://en.wikipedia.org/wiki/3D_printinguses plain 8 x11 paper and glue for rapid prototyping http://en.wikipedia.org/wiki/Rapid_prototyping. “The printer takes standard sheets of printer paper (A4 size) and deposits regular old PVA glue in a pattern determined by the design. Another sheet of paper is added, and a tungsten carbide blade cuts away the excess paper…”

Source: Wired http://blog.wired.com/gadgets/2008/11/3d-printer-feed.html & http://www.slashgear.com/mcor-matrix-3d-printer-uses-regular-paper-0722025http://gizmodo.com/photogallery/3dprinter/1004428172 hackaday.com http://hackaday.com/2008/11/06/3d-printer-uses-office-paper/.

DISPSILH

DISPSILH (Quick Reference) Type: Integer Saved in: Drawing Initial value: 0

Controls display of silhouette edges of 3D solid objects in a 2D wireframe or 3D wireframe visual style.

You can use the REGEN command to display the results.

DISPSILH also suppressess the mesh displayed when using the HIDE command in the 2D wireframe visual style.

Check String for Non-ASCII Characters in Perl

if ( $string =~ /[[:^ascii:]]/ ) {
    print "String contains characters that are NOT pure ASCII";
}
else {
    print "Everything is good, string/pure is valid ASCII.";
}

E.G.: If it contains bytes > 127, it’s not valid ASCII.

This list guides you to online calculators that will help you calculate everything from algebra equations and mortgage interest to fuel costs and body fat.

Greatest projector / iPhone clone combo handset in the world now up for sale

N70 Mini Video Projector 2.4″ Touch LCD Dualband GSM Cell Phone * EMS