|
|
 |
|
|
|
|
| per·pet·u·al mo·tion |
noun |
|
| Definition: |
| |
1. hypothetical motion: the hypothetical continuous operation of a mechanism without the introduction of energy from an external source, known as perpetual motion of the first kind. A device demonstrating this would violate the first law of thermodynamics, which states that energy can neither be created nor destroyed.
|
2. hypothetical conversion of heat: the hypothetical operation of a mechanism that would convert heat directly into work, known as perpetual motion of the second kind. A device demonstrating this would violate the second law of thermodynamics, which states that heat cannot be converted into work without producing some other effect.
|
|
|
|
