But the fact that no perpetual motion machine has been built is not the reason we believe the feat to be impossible. We have independent, well-understood reasons for thinking the feat impossible.
As Robin Hanson has pointed out, thermodynamics is not well understood at all.
Conservation of energy is more basic than thermodynamics.
But the fact that no perpetual motion machine has been built is not the reason we believe the feat to be impossible. We have independent, well-understood reasons for thinking the feat impossible.
As Robin Hanson has pointed out, thermodynamics is not well understood at all.
Conservation of energy is more basic than thermodynamics.