Is a perpetual motion engine possible?

A perpetual motion machine is a hypothetical machine that can do work infinitely without an external energy source. This kind of machine is impossible, as it would violate either the first or second law of thermodynamics or both.

Can you make a perpetual motion machine in space?

Is perpetual motion possible? According to Frey: No, but things can be engineered to approximate or mimic it. “The laws of physics indicate that perpetual motion would occur if there were no external unbalanced forces,” he says.

Can perpetual motion machine be patented?

Patents for purported perpetual motion machines have been granted in some jurisdictions, in spite of those jurisdictions also having similar laws. This shows the difficulty involved in assessing patentability of such an invention. Even though granted, such patents have never been put into practice.

What is PMM2 Why is it impossible?

ANSWER: perpetual motion machine of second kind (PMM2) This is due to that some heat has to be rejected to sink. Therefore this heat engine violates the Kelvin-Planck statement of second law of thermodynamics. Hence it will be a perpetual motion machine of second kind (PMM2). PMM2 is impossible to produce.

Is perpetual motion possible in a vacuum?

People have suggested that placing the perpetual motion machine inside a vacuum would create a frictionless system. Unfortunately even vacuums aren’t ever ‘perfect’ vacuums and there is always some friction there that will stop the motion eventually.

Can we use gravity as an infinite energy source?

No, gravity can not be used as an infinite energy source. In fact, strictly speaking, gravity itself can not be used as an energy source at all. You are confusing forces with energy, which are very different things. Energy is a property of objects, such as balls, atoms, light beams, or batteries.