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Definition of Perpetual motion machine
1. Noun. A machine that can continue to do work indefinitely without drawing energy from some external source; impossible under the law of conservation of energy.
Definition of Perpetual motion machine
1. Noun. a hypothetical device that exhibits perpetual motion, especially one that does useful work with no input of energy ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Perpetual Motion Machine
Literary usage of Perpetual motion machine
Below you will find example usage of this term as found in modern and/or classical literature:
1. The History of European Philosophy: An Introductory Book by Walter Taylor Marvin (1917)
"Naturalism: The universe conceived as a perpetual motion machine.—The greatest
philosophical revolution the intellectual world has ever witnessed resulted ..."
2. The Life of Robert Fulton and a History of Steam Navigation by Thomas Wallace Knox (1886)
"... niggardly action of Congress—Fulton and the "perpetual-motion " machine—Fulton's
personal appearance and peculiarities—His grave in Trinity churchyard. ..."
3. Introduction to Physical Chemistry by James Walker (1907)
"In the general acceptance of the term, a perpetual motion machine is one from
... But another kind of perpetual motion machine might exist—one, namely, ..."
4. Thermodynamics of Technical Gas-reactions: Seven Lectures by Fritz Haber (1908)
"Experience tells us that this is just as impossible as a perpetual-motion machine
of the first and better-known kind, in which work is created out of ..."
5. The Romance of Invention: Vignettes from the Annals of Industry and Science by James Burnley (1886)
"... of Perpetual Motion—Great Mechanical Geniuses who have been dazzled by it—The
Marquis of Worcester's perpetual motion machine— ..."
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