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Perpetual motion machine
/pəpˈɛtʃuːəl mˈəʊʃən məʃˈiːn/
/pɚpˈɛtʃuːəl mˈoʊʃən məʃˈiːn/Perpetual motion machine
01
a machine that can continue to do work indefinitely without drawing energy from some external source; impossible under the law of conservation of energy
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