This is a simulation of a liquid using the Chipmunk Physics engine. It is made up of 5000 spheres that have low friction (a coefficient of 0.005).

I got the idea for this from this video:    • Pseudo-fluids in Chipmunk Playground   . That person's is done much better than mine, but mine is made from scratch as opposed to using Chipmunk Playground. I bundled mine into a Mac app that renders it (not in real time) and saves it to a .mov file. This is why you can see the buttons in the video.

I hope you like it!