83a

spoiler for first challenge:

   data = 'MAL TIRRUEZF CR MAL RKZYIOL EX MAL OIY UAE RICF MAL ACWALRM DYEUPLFWL CR ME DYEU MAIM UL IZL RKZZEKYFLF GH OHRMLZH'
   c = {'I': 'a', ' ': ' ', 'L': 'e', 'Y': 'n', 'F': 'd', 'H': 'y', 'P': 'l', 'K': 'u', 'O': 'm', 'G': 'b', 'D': 'k', 'A': 'h', 'Z': 'r', 'C': 'i', 'R': 's', 'W': 'g', 'X': 'f', 'M': 't', 'E': 'o', 'U': 'w', 'T': 'p'}
   "".join((c[i] if i in c else i for i in data))
   > 'the password is the surname of the man who said the highest knowledge is to know that we are surrounded by mystery'

are there any open hardware projects to create such point clouds?

http://docs.syncthing.net/users/faq.html#what-if-there-is-a-...

  > When a file has been modified on two devices 
  > simultaneously, one of the files will be renamed to
  > <filename>.sync- conflict-<date>-<time>.<ext>.

yes. you can force the streamable mpg4 download with the -f option (-f22), but it seems not all videos are encoded that way. livestreamer might be the tool of choice if you don't want to use your browser to watch a youtube video.

i'm using https://www.requestpolicy.com/ (ghostery seems to phone home, requestpolicy not (afaik))

http://hiking.waymarkedtrails.org/ is a quite impressive example for this. you may choose other layers in the right top!

last time i tried mpc-hc had good support for v-sync (and "debugging" it) and vlc had problems with screen tearing.

originally i wanted to use linux, but the screen tearing there was even worse.

why not just add three microphones to your table and use a dump stick as your pencil. the sound waves are delayed proportional to the distance. by correlating the three signals you are able to get the distance between pencil and microphone. knowing the position of your three microphones you are able to calculate the position of the pencil.

i think there was a demo with piezo microphones on a wall or chipboard, but i'm not able to find it.

good point. missed that. but does your text editor have a trim function, too?

i've thought of a case i used a regex the last time. and it was removing whitespace in some code file.

so how do you e.g. remove trailing whitespace?

what do you want to store? who's gonna use it? why not use a wiki?

if it's about collaborative working on a long text: perhaps plain text-files and a version control system like git is the way to go?

if you want to discuss about a medium-length text, you could use a etherpad.

http://etherpad.org/ - example: http://piratenpad.de/p/hackernews

please create a second triple of screenshots with a blank page showing two divs with background #093 and #12c. perhaps it's a color managment problem on client side.

requestpolicy <- simply blocks all traffic to external webserver

have you already looked at http://processing.org/ ? although i don't like java i think it's quite cool, because:

- good documentation

- many small examples you can start from

- all built in (video/sound/grafik)

- you can extend it by using java