noneuclideandreamer, German Genuary 8: Chaotic System
My take on the double Pendulum.
The math on Wikipedia gave me a headache, so I solved it with coil forces: the balls are connected with an invisible coil and one of the balls is connected to the upper middle with another coil.The varying colors have varying coil constants. It takes a while for them to go out of phase but then they do it enthusiastically...