With just 350k, the Box2D physics engine was ported to Javascript.  Although Flash physics engines are plentiful and pretty much everyone already has Flash installed, the demand for a Javascript-based physics engine may seem slim.  But given that many mobile devices still do not support Flash, there is some potential for a project like this.

Box2D Screenshot

Amazing how far Javascript and web-development has matured over the past few years, isn’t it?

Check out a demo of the engine in action on the Sourceforge page.  It uses the powerful Prototype Javascript library.

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