What does perpetual motion mean?
Definitions for perpetual motion
per·pet·u·al mo·tion
This dictionary definitions page includes all the possible meanings, example usage and translations of the word perpetual motion.
Princeton's WordNet
perpetual motionnoun
motion that continues indefinitely without any external source of energy; impossible in practice because of friction
Wiktionary
perpetual motionnoun
The motion of some hypothetical device that continues forever with no obvious input of energy in violation of the laws of thermodynamics.
ChatGPT
perpetual motion
Perpetual motion refers to the hypothetical concept of movement or operation that continues indefinitely without an external source of energy. This concept often defies the laws of physics - particularly the first and second laws of thermodynamics, which states that energy cannot be created or destroyed and that entropy in an isolated system always increases over time, respectively.
Freebase
Perpetual motion
Perpetual motion is a conceptual framework, that describes "motion that continues indefinitely without any external source of energy; impossible in practice because of friction." It can also be described as "the motion of a hypothetical machine which, once activated, would run forever unless subject to an external force or to wear". There is a scientific consensus that perpetual motion in an isolated system is impossible as it would violate the first or second law of thermodynamics. Cases of apparent perpetual motion can exist in nature, but either are not truly perpetual or cannot be used to do work without changing the nature of the motion. For example, the motion of a planet around its star may appear "perpetual," but interplanetary space is not completely frictionless, so planets' orbital motion is very gradually slowed over time. The fly-by of a space probe past a planet can be used to speed up the probe but in doing so alters the motion and reduces the energy of the planet in its orbit around the Sun. The flow of current in a superconducting loop can be used as an energy storage medium, but just as with a battery, using it to power a device will remove the equivalent amount of energy from the current in the loop.
Suggested Resources
perpetual motion
Song lyrics by perpetual motion -- Explore a large variety of song lyrics performed by perpetual motion on the Lyrics.com website.
perpetual motion
Read the full text of the Perpetual Motion poem by Clarence Michael James Stanislaus Dennis on the Poetry.com website.
Matched Categories
Numerology
Chaldean Numerology
The numerical value of perpetual motion in Chaldean Numerology is: 7
Pythagorean Numerology
The numerical value of perpetual motion in Pythagorean Numerology is: 2
Examples of perpetual motion in a Sentence
We love that students can swing their feet back and forth ... and be in perpetual motion and can do that without bothering anyone else.
What is it exactly that's going to happen this time that didn't happen at any point in the past 15 years? it seems patently absurd to me to be contemplating this. The circularity, the perpetual motion of that delusion is extraordinary.
Translations for perpetual motion
From our Multilingual Translation Dictionary
- الحركة الدائبةArabic
- ewige BewegungGerman
- αέναη κίνησηGreek
- eterna moviĝoEsperanto
- movimiento perpetuoSpanish
- mouvement perpétuelFrench
- अविराम गतिHindi
- ÖrokmozgóHungarian
- moto perpetuoItalian
- תנועה מתמדתHebrew
- 永久に運動することJapanese
- perpetuus motusLatin
- evigvarende bevegelseNorwegian
- вічний рухUkrainian
- chuyển động vĩnh viễnVietnamese
- דוירעסדיק באַוועגונגYiddish
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"perpetual motion." Definitions.net. STANDS4 LLC, 2023. Web. 10 Dec. 2023. <https://www.definitions.net/definition/perpetual+motion>.
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