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Perpetual motion
/pəpˈɛtʃuːəl mˈəʊʃən/
/pɚpˈɛtʃuːəl mˈoʊʃən/Perpetual motion
01
motion that continues indefinitely without any external source of energy; impossible in practice because of friction
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/pəpˈɛtʃuːəl mˈəʊʃən//pɚpˈɛtʃuːəl mˈoʊʃən/
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