Lever

In physics, a lever

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(from Old French levier, the agent noun to lever "to raise", c. f. levant) is a rigid object that is used with an appropriate fulcrum or pivot point to multiply the mechanical force that can be applied to another object. This is also termed mechanical advantage, and is one example of the principle of moments. The principle of leverage can also be derived using Newton's laws of motion and modern statics.

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The earliest remaining writings regarding levers date from the 3rd century BC and were provided by Archimedes. Give me the place to stand, and I shall move the earth is a remark of Archimedes who formally stated the correct mathematical principle of levers (quoted by Pappus of Alexandria). Archemides also invented Archimedes' screw, which was used to draw water from a lake or river, although this falls under the screw category.

Levant: :For other uses of the terms Levant, Levante or Levantine, see Levant (disambiguation)....

Fulcrum: Fulcrum may refer to one of the following....

Mechanical advantage: In physics and engineering, mechanical advantage (MA) is the factor by which a machine multiplies the force put into it. The mechanical advantage can be calculated for the following simple machines by using the following formulas:...

Lever related Images and Photos (experimental)

Lever du Jour New York

Le Lever de Fanchon

Lever du Soleil par la Neige sur L'Etang de Chalon-Moulineux

Lux Soap by Lever Brothers Limited