[MacDorcha]

"A pendulum won't gain or lose energy by this process."


so we know how to make perpetual motion machines? hot diggity, wish that was in the news!

sarcastic biting aside for a moment

Merry Christmas!

[Junior]

so we know how to make perpetual motion machines? hot diggity, wish that was in the news!

An object rotating in space (the outer kind) is technically a perpetual-motion machine (an object in motion will remain in motion; an object at rest will remain at rest; until acted upon by an outside force). However, extracting energy from such an arrangement introduces one or more outside forces.