Akureyri physics experiments

During the dark nights of Akureyri, I tried to learn the physics of collisions.

By the time that was getting done, it was time to get back to the northeast.

Note: The bouncing balls will probably only work on recent Firefox browsers. The collision calculation seems to work on recent Firefox, Safari, and Opera browsers.

I wanted to make a program that ran in a web browser, and would have many seemingly real pieces moving simultaneously.