えいきゅうきかん
永久機関
1. perpetual motion machine; perpetual motion engine; perpetuum mobilePhysics
2. Perpetual motionPerpetual motion 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 would violate the first and/or second law of thermodynamics.
Read “Perpetual motion” on English Wikipedia
Read “永久機関” on Japanese Wikipedia
Read “Perpetual motion” on DBpedia
Read “Perpetual motion” on English Wikipedia
Read “永久機関” on Japanese Wikipedia
Read “Perpetual motion” on DBpedia
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