Machine: Difference between revisions

Revision as of 15:21, 23 June 2005

Revision as of 01:14, 26 June 2005

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[[Image:Wind turbines.jpg|thumb|200px|Wind turbines]]A '''machine''' is any [[mechanics|mechanical]] or [[organic]] device that transmits or modifies [[energy]] to perform or assist in the performance of tasks. It normally requires an ''input'' as a trigger, and transmits the modified energy to an ''output,'' which performs the desired task.

[[Human]]s have used mechanisms and machines to amplify their abilities since before [[Recording|written records]] were available. The primary difference between simple [[tool]]s and simple mechanisms or machines is a power source and a somewhat independent operation. The term ''machine'' generally applies to an assembly of [[part]]s operating together to perform work. Generally these devices decrease the [[intensity]] of an applied [[force]], altering the direction of the force or transforming one form of [[motion]] or energy into another.