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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'


Isn't the point to be able to do these yourself?


Yes, exactly. In that case, perhaps using the algorithm described in the same place as one may find the reverser's credo: "what one man can invent, another can discover"? (As can women and others, of course! I've always assumed the "man" a forgivable historical artifact there, given the now 110-year gap.)

One might tolerate an occasional hint, but please, please, please do not spoil the crackmes and such things. They are for the practice and instruction of those who seek knowledge, not those who want to merely find it. The act of seeking trains the mind in the inference of their creators' intentions and thoughts: a skill that needs to be learned, and I do not think can simply be taught.

I am, of course, biased. There is a remnant of elitism, I will admit. Before we had the web, such things used to be swapped via post, and obscure BBSes. It's quite emotional, even, to be reminded some of the old forgotten places still exist. It has been many years. Even... a certain shrine's still running, somehow. Old crackers never die: they just nop! +akr


90 90 90 90


I do love me a good NOP ramp.


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


You might be interested in OpenDroneMap [1] and Mapillary's OpenSfM [2],[3]

[1] http://opendronemap.github.io/odm/pages/about.html [2] https://github.com/mapillary/OpenSfM [3] http://blog.mapillary.com/update/2014/11/14/opensfm.html


I would really like to see that as well. The rendering is interesting, but only as a passing curiosity if we can't author data.


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))


There's an opt-in option in Ghostery that reports usage info, but as far as I know it doesn't "phone home" if you don't opt in to that.


Yeah, seconded, AFAIK it doesn't phone home if you disable that.


Privacy-advocating browser extension stops violating your privacy if you ask it to.


No. Sending of usage info is opt-in, not opt-out.


What about Disconnect or Lightbeam? (as alternatives to Ghostery)


Use Disconnect. More or less the same as Ghostery, minus the tracking you part. The fact that Ghostery tracks whether or not one sends data back to them shows that they have to be keeping some sort of tracking id for your machine.


uBlock has advanced features that function like request policy (effectively can replace it, though RP is still a good plugin)


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.


Are there any issues with other noises using this approach? And what's the level of preciseness if you remember.


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


Is that a serious question? Almost every major language has some kind of string trim/strip function for that purpose.


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.


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


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