Algodoo

thanks to RaRaMalum (who also thanks guyboy) for providing (with no permission (sorry but a great idea has to be powered)) the thing that has 2 boxes whose masses change depending on the angle they are, the link to that scene is :

http://www.algodoo.com/algobox/details.php?id=20644

it has only to hinges that act like motors but they only make posible the thing of the angle and etc... they have nothing to do with final motor movement

enjoy!