Another YouTube video

Although the motions and objects ( let alone the texture ) are simple in these videos I nevertheless have a framework for experimenting and visualizing a range of mathematical concepts. - I tend to call it a Virtual Clay Demo Table, I hope Source will not object to that though ;) - I can add geometric objects and give them motion by simply adding functions for {x(t), y(t), z(t)}. - Simple indeed, as it is intended by the developers of Mathematica.