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perpetual motion

 

Definitions from WordNet

Noun perpetual motion has 1 sense
  1. perpetual motion - motion that continues indefinitely without any external source of energy; impossible in practice because of friction
    --1 is a kind of
    motion

Definitions from the Web

Perpetual Motion

Definition: Perpetual motion refers to the hypothetical concept of a motion that continues indefinitely without any external energy source.

Examples:
  1. The concept of perpetual motion has fascinated scientists and inventors for centuries.
  2. According to the laws of thermodynamics, perpetual motion machines are deemed impossible.
Related Products:
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