Wolfram Alpha goes live! You’ll find a lot of criticism online, but so far, I think the thing is pretty surprising. Some of my favourite queries: volume of 1 tablespoon of salad oil, small rhombicosidodecahedron, apples vs oranges, what is the meaning of life?.
Perelman’s proof of the Poincaré conjecture, materials for a course by Terence Tao.
The scrypt key derivation function, “We estimate that on modern (2009) hardware, if 5 seconds are spent computing a derived key, the cost of a hardware brute-force attack against scrypt is roughly 4000 times greater than the cost of a similar attack against bcrypt (to find the same password), and 20000 times greater than a similar attack against PBKDF2.”
Get rhythm when you get the blues
Come on, get rhythm when you get the blues
Get a rock ‘n’ roll feelin’ in your bones
Put taps on your toes and get gone
Get rhythm when you get the blues
— Johnny Cash, Get Rhythm
A man, unexcited by his own possessions and increasingly confused as to why he collected all these things in the first place, decides to hire someone else to live amidst his books and clothes, DVDs and framed photographs, so that he can learn how another person might more intelligently put it to use.
New World Records on a Gaming Computer, “Euler-Mascheroni Constant – 29.8 billion digits”. By Alexander J. Yee and Raymond Chan.
Nanojit is a small, cross-platform C++ library that emits machine code. Both the Tamarin JIT and the SpiderMonkey JIT (a.k.a. TraceMonkey) use Nanojit as their back end.
Now We Can Rig Up Twitter “Groups”! Hacking the reply restriction.
The Pet Dragon, a short story about adventure, friendship and chinese characters.
Cardsofchange, what do you do with business cards after losing your job?
2009 Finalists of the Best Visual Illusion of the Year Contest
Hackers Can Sidejack Cookies, poem by Heather McHugh.