Start by shaking the browser, then create new balls (click on empty space), move some others (drag) and reset the screen (double click). Stunning gravity and physic demonstration!
What will happen when we put gravity on every single elements in Google's homepage?
A very creative use of scrollbar to simulate wave effect. Best view with chrome, firefox is a bit laggy.
Balls falling on an hidden random terrain. This experiment is using physic simulation trought the library box2djs.
When you draw something on a canvas, it starts moving under the Newtonian law.