Whats with that silly law of physics ?

Im wondering who wrote those silly laws, about no free lunches, and the impossibility of perpetual motion stuff.
Imagine the resulting force of this on a circular track ;
http://www.youtube.com/watch?v=Z7CyPtF0ChA
Imagine the resulting force of this on a circular track ;
http://www.youtube.com/watch?v=Z7CyPtF0ChA