|
WordNet-Online
Definitions from WordNet | ||||
Definitions from the WebTerm: Perpetual Motion MachineDefinition: A perpetual motion machine is a hypothetical device that can operate indefinitely without an external source of energy, constantly producing work or motion. It violates the laws of thermodynamics, and such a device has never been successfully created. Senses/Usages: Sense 1: Popular Definition According to popular belief, a perpetual motion machine is a machine or device that can generate energy or motion continuously without the need for any external input. This concept captures the imagination of many people, but it remains unattainable. Sample Sentence: Many inventors have been fascinated by the idea of creating a perpetual motion machine, hoping to revolutionize the world with unlimited energy generation. Sense 2: Local Definition (Scientific) In scientific and engineering terms, a perpetual motion machine refers to a theoretical device that violates the laws of thermodynamics. It implies a machine that creates more energy than it consumes, contradicting the principle of conservation of energy. Sample Sentence: Scientists and engineers understand that a perpetual motion machine is impossible due to the fundamental laws of thermodynamics, which indicate that energy cannot be created from nothing. Related Products: | ||||
perpetration perpetrator perpetrators perpetua perpetual perpetual perpetual calendar perpetual motion perpetual motion machine perpetual warrant perpetually perpetuam rei memoriam perpetuate perpetuated perpetuating perpetuation perpetuity
|