Trying to Build a Perpetuum Mobile

Just imagine the huge benefits of a non-stop working machine, which could create energy out of nothing. If this might sound silly now , ...well , humanity needed quite a long time to realise that this is impossible!
In fact, during many centuries, thousands of people have tried building such a machine (now called a first degree perpetuum mobile), but with no positive result. The scientific prove that a first degree p.m. is impossible is given by the first principle of thermodynamics or the energy conservation law. This law says that it is impossible for a system to consume more energy than it has. …