Lever
From The Art and Popular Culture Encyclopedia
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A lever is a machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum. It is one of the six simple machines identified by Renaissance scientists. The word comes from the French lever, "to raise", cf. a levant. A lever amplifies an input force to provide a greater output force, which is said to provide leverage. The ratio of the output force to the input force is the ideal mechanical advantage of the lever.
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See also
- Crowbar (tool)
- Engineering mechanics
- Heavy equipment
- Linkage (mechanical)
- Mechanical advantage
- Mechanism (engineering)
- Tools
- Virtual work
- Simple machine
- Lever Brothers
Unless indicated otherwise, the text in this article is either based on Wikipedia article "Lever" or another language Wikipedia page thereof used under the terms of the GNU Free Documentation License; or on research by Jahsonic and friends. See Art and Popular Culture's copyright notice.
