How the hell would you make the seal?
And if some simple troll science guy came up with a working perpetual motion machine.Then god damn what the forget has Stephen Hawking been doing.
when a boy seal and a girl seal love each other very much...
Let's say the seal is a futuristic force field that keeps water from passing through. Infinite energy yay?
Resistance from the moving parts such as the generator and the wheels.
Meh, eventualy you would run out of wthousandater, becuase when the balls leave the tank they will have a small amount of liquid residue on it, repeat this a couple of times and well, you run out of water
Idk,just go watch a random video: http://www.youtube.com/watch?v=mA6Ty83hgh8