Algodoo

its extreamly slow engine but its fully mechanical not that using axle thing {1e-05 hinge cons trick}
its cheating man it instantly conects two axel's and if you set to brake it spins both wheels or something its just cheating and i made a mechanical full version - the design is from steam engine (:

SMALL BLOG?
btw i got an ipad 2 IM NOT AN IPAD KID OKAY? it was my brothers ipad and hes an ipad kid and the ipad 2 is jailbroken BY ME and i got the algodoo runing on it thank god it still works its running well i guess but until i run my engine or heavy physics it lags btw its only 512 mb of ram lol