## So, the unknowable kicks in

Logic hacking - "Writing shorter and shorter computer programs for which it's unknowable whether these programs run forever, or stop... the winner of the Busy Beaver Game for N-state Turing machines becomes unknowable using ordinary math - somewhere between N = 5 and N = 1919."
posted by kliuless on Jul 30, 2016 - 17 comments

## Is this Prime?

The Is this prime? game tests you as you sort numbers into prime and non-prime. Click Yes or No or type Y or N on the keyboard. Uses JavaScript.
posted by Clinging to the Wreckage on Mar 18, 2016 - 47 comments

## Still Combining Numbers On A Grid To Get Bigger Numbers, But Different

Get 10 is a new browser game from veewo, creators of 1024.
posted by Rinku on Dec 9, 2014 - 31 comments

## hydra!

Try to defeat the hydra! (Java required.) More about hydra math.
posted by divabat on Dec 22, 2013 - 27 comments

## Aspiring Animators & Game Designers, Study Your Calculus & Combinatorics

Every film Pixar has produced has landed in the top fifty highest-grossing animated films of all time. What's their secret? Mathematics. Oh, and 22 Rules of Storytelling.
posted by zarq on Mar 8, 2013 - 40 comments

## Fun with kinematics!

Racetrack is a game with very simple rules which nonetheless does a surprisingly good job of simulating the acceleration, braking, and handling of a race car. It can teach not only about inertia and kinematics, but also about optimal racing lines. Racetrack can be played with nothing more than a piece of graph paper and a pen, but there is also an online implementation called Vector Racer.
posted by 256 on Aug 11, 2012 - 42 comments

## The Angel Problem

The Angel Problem. The Angel and the Devil play a game on an infinite chess board...
posted by Wolfdog on Feb 16, 2012 - 37 comments

## Raise Thumb. Close One Eye. Squint.

The eyeballing game: compare your best attempts at several instinctive everyday tasks - determining a point of convergence, bisecting an angle, finding the midpoint of a line - against mathematical certainty. In a more financial mood? Play Chartgame: given a random historical stock chart of an unnamed S&P 500 company, choose to buy and sell as time advances to see if you can beat the market.
posted by Bora Horza Gobuchul on Oct 14, 2009 - 22 comments

## Math is congruent with fun!

You have spacial skills. Apply them in Building Houses 2, on mathsnet.net. Or freestyle in Building Houses 1. Or at night! Oh and also there's like a hundred more puzzles over there too. Some java required.
posted by cortex on Apr 12, 2007 - 66 comments

## Physics simulators. Lots of physics simulators.

PhET - Physics Education Technology offers this astoundingly large library of online physics simulations. Play orbital billiards. Land on a cheesy moon. Experiment with sound. Or try more advanced quantum physics simulators. Still bored? Try the "cutting edge" catagory. Here's the complete index. (Warnings: Frames, Flash, Javascript, Java applets, graphics, sound, quantum timesuck.)
posted by loquacious on Feb 3, 2007 - 7 comments

## Pianolina

The Pianolina - an addictive flash game - is something like a cross between Pong and WolframTones. Brought to you by Grotrian, piano manufacturers since 1835, the pianolina visualizes musical notes as little squares that chime when they bounce against each other or against a wall. Its sophisticated interface lets you add chords, gravity, or start with the basic notes of well known compositions like Beethoven's "Für Elise".
posted by jann on Jun 16, 2006 - 21 comments

## Is our children learning maths?

Friday Flash Fun, and other games from the educational entertaining Maths is Fun. Just don't tell the kids they're learning.
posted by kyleg on Sep 16, 2005 - 4 comments

## The Paso Doble

The Paso Doble is an eerie little puzzle game, something like a De Chirico painting come to life.
Oh yeah, a new Mersenne prime was discovered today by a 20-yr old.