A Perpetuum mobile is not possible, because it is against common thermodynamic laws. There are two or more types of different perpetuum mobiles - but all fail at the first or second law of thermodynamics. For the newbie some constructions and effects seem to be an innovation - but looking at it, analizing it, you always come to the conclusion, that you put more engergy in, than you get out (due to loss in friction, heat etc. [but remember, energy can't be lost, it can only be transformed]).

You always have to stripe down the very complex constructions to a simple system - then you will always find out that something is wrong

Just a small sample: Every force in this world needs a counterpart, otherwise simple constructions as a chair / table etc. would never be able to exist ( they would roll over, begin to fly or collapse). So, transferring this to energy, you can't say that someone is producing energy, just transforming it. Otherwise we all would end up in chaos