Pleas help me with this simulation. [sup]http://zamestnanci.fai.utb.cz/~schauer/contents/mechanics/rotations/ex10_4.html[/sup]How make this simulation. I never worked with ejs. Thanks.[sup]http://zamestnanci.fai.utb.cz/~schauer/contents/mechanics/rotations/ex10_4.html[/sup]