If you want to see the sort of things it does, watch the following short video - but it is much more fun to interact with the simulation yourself:
If you visit the project's CodePen page. Tearable Cloth, called a pen in the CodePen jargon, then you can run the program to try it out and both examine and modify the code.
Due to a heavy-handed approach to security Firefox, Chrome and Opera are causing problems. They block access to routers with inadequate SSL reporting the cryptic message, "Server has a weak ephem [ ... ]