Remember you days at school and your physics class? Wouldn’t it be great if that sketch of a pendular or that hand-drawn solar system magically turns into an animated physics simulation?

Actually this is possible for some time now, as MIT developed ASSIST, an sketch understanding system for whiteboards.
It lets you draw objects like bricks, balls, and springs. Your sketch is interpreted so that the system gets an understanding what is a moveable object which elements should stay in place.
After hitting "Run" your drawing is feed into a physics engine and magically turns into a nice animation on your whiteboard.