The following is from : Wikipedia : Lever
In physics, a lever (from French lever, "to raise", cf. a levant) is a rigid object that is used with an appropriate fulcrum or pivot point to either multiply the mechanical force (effort) that can be applied to another object or resistance force (load), or multiply the distance and speed at which the opposite end of the rigid object travels.
This leverage is also termed mechanical advantage, and is one example of the principle of moments.
A lever is one of the six simple machines.
Early Use:
The earliest remaining writings regarding levers date from the 3rd century BC and were provided by Archimedes.
"Give me a place to stand, and I shall move the earth with a lever" is a remark of Archimedes who formally stated the correct mathematical principle of levers (quoted by Pappus of Alexandria).
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Q: Do you know how to recognize a particular situation that enables you to stay ahead of the curve?
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