Interactive mathematics miscellany and puzzles, including 75 proofs of the Pythagorean Theorem, an interactive column using Java applets, and eye-opening demonstrations. (Actually, much more.)
posted by parudox on Dec 1, 2007 - 11 comments

Metaphorical.net - A collection of interactive studies and strange thoughts by william ngan. Favorites: Eichstatt and Sosostris. [via futurefeeder.com]
posted by swordfishtrombones on Jun 26, 2006 - 3 comments

J-Track 3D is an interesting JAVA web-app offered by NASA which gives a 3D interactive display of over 500 satellites currently orbiting the Earth.
posted by numlok on Feb 16, 2005 - 8 comments

The vOICe: Seeing with sound {java} “...vertical positions of points in a visual sound are represented by pitch, while horizontal positions are represented by time-after-click. Brightness is represented by loudness. In this manner, pixels become... voicels!”
posted by Cryptical Envelopment on Dec 14, 2004 - 26 comments

The Secret Lives of Numbers A couple of programmers took it upon themselves to use "a popular search engine"(just say it: Google) to determine the relative popularity of every integer up to one million. Even if you just take it as a big case of overthink, it's kind of fun to play with the Java-based visual representation, which provides some of the terms associated with the numbers as you click on them.
[Short warning inside; read before visiting.]
posted by Su on Feb 11, 2002 - 20 comments

Mmmm...javalicious
posted by plinth on Mar 22, 2000 - 6 comments