My son Hartmut (www.motor-talk.de) sent me this:

"Falling Sand Game", also "World of Sand", (2005) is a Java applet first found on the Dofi Blog via Fark thread, later enlarged and rehosted by Chirag Mehta. The game has been popular on community link sites like Digg and Delicious and involves four main falling particles: sand, water, salt, and oil. Each of these particles have special properties that can be manipulated; among these include burning, desiccating, growing, eroding, and more. Along with these four, main particles are auxiliary environmental manipulators: Wall, Fire, Plant, Spout, Cera (or wax), ???, and Eraser. By putting these together, one can thoroughly enjoy the modeling and construction of very complex structures and systems. There is an additional special feature that can be turned on, off, or told to remain in place. This is called the namekuji. In japanese, "namekuji" means slug, naturally for the properties of a slug when salt is poured onto it. Several different versions exist, varying from applets with zombies, or human bodies, that have their own unique properties to applets where auxiliary environmental manipulators have additional properties.

Please visit:

http://fallingsandgame.com/sand/hell1.html ■