Bouncey - canvas physics
This is Bouncey. It’s a simple physics demo I wrote in early/mid 2011, with some contributions and bugfixes from my good friend Greg Gardner.
The description for bouncey’s github repo is:
“a buggy, rudimentary, just-for-fun javascript physics simulator.”
It covers Newton’s laws of motion.
An updated (but less colorful) version of bouncey is available here.