1. LeverA lever is constructed from a beam attached to ground by a 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.
Read “Lever” on English Wikipedia
Read “てこ” on Japanese Wikipedia
Read “Lever” on DBpedia
Read “Lever” on English Wikipedia
Read “てこ” on Japanese Wikipedia
Read “Lever” on DBpedia
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