Perpetual motion
volume
British pronunciation/pəpˈɛtʃuːəl mˈəʊʃən/
American pronunciation/pɚpˈɛtʃuːəl mˈoʊʃən/

"perpetual motion"의 정의 및 의미

Perpetual motion
01

motion that continues indefinitely without any external source of energy; impossible in practice because of friction

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