A whiteboard that knows how to apply physics?

A week or so ago I came across this whiteboard and I could not believe my eyes. This whiteboard can apply the laws of physics to simple shapes. It must have some pre-defined properties such as weight, friction and hardness which the instructor in the video does not discuss, but none the less it is still a very impressive unit. I don't know who would buy this but its was nerdy enough to blog about...Enjoy!