Balls bouncing around on a two-dimensional plane
This demo demonstrates one very basic way that web workers can be used for simulating physics.
Use tips:try adding 10-100 at a time by entering the number of balls you want to add in the textbox at the top, then click "Add". Also: try resizing the window or zooming in/out.
This demo uses a worker to track ball location and a worker nested in the worker that tracks ball location to detect collisions (for this reason, my demo will not work in chrome/webkit - see:http://code.google.com/p/chromium/issues/detail?id=31666).