yes actually a wheel conected to a solar cell is equivalent to the drinking bird
but that is also a perpetuum mobil as long as theres the sun
you seem educated what about my proposition to thicken a drinking bird a trillion times keeping its height
the pressure gradient will be equal so it should work as well
the sience world has changed the concept of perpetual motion into creation of energy which is very different
we are brainwashed in college that the best engines are by burning fuel and anything better its imposible
even talking of cold fusion makes you look like a crackpot