Over-unity..

Lovely word.. it means getting more energy out than you put in.. to a device or system, a perpetual machine virtually.. i.e. you put in 12v to the "overunity generator" and you get 2kw out, it contravenes the laws of Physics, but they do actually exist... and after power up, it powers itself!... BP and Shell Oil dont want this made public... for obvious reasons.. "revenue"

Just search you Tube to see many others...