Newtonian Hoop Applet - Greg Egan

"This applet models a Newtonian rotating elastic hoop as a polygon with point masses at the vertices, and edges consisting of elastic material; the edges are assumed to have negligible mass, always to be straight line segments, and to obey Hooke's law exactly. (Note that only one in every 10 vertices is marked, rather than all of them; this gives a clearer sense of the motion of the hoop by avoiding “strobe” effects.)"


4 out of 5


http://www.gregegan.net/SCIENCE/Rings/SimpleHoopApplet.html