perpetual motion
From Wiktionary, the free dictionary
English
Noun
perpetual motion (uncountable)
- (physics) The motion of some hypothetical device that continues forever with no external input of energy, in violation of the laws of thermodynamics.
Usage notes
- In the literal sense, perpetual motion can exist in an ideal isolated system, such as a single photon moving through empty space. However, a perpetual motion machine which produces work while retaining its kinetic energy is impossible under the known laws of physics.
Derived terms
Translations
Translations
|
Further reading
perpetual motion on Wikipedia.Wikipedia - Laws of thermodynamics on Wikipedia.Wikipedia
Wikiwand - on
Seamless Wikipedia browsing. On steroids.