Friday Flash Java Fun - 'Building Houses With Side Views' Entertaining Java game/exercise/doodad.
posted on Jun 13, 2008 - View this thread

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 on Dec 1, 2007 - View this thread

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 on Apr 12, 2007 - View this thread

Java applets to help visualize various concepts in math, physics, and engineering
posted on Sep 9, 2005 - View this thread