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Archimedes (c. 287—212 bc) Greek mathematician and inventor, of Syracuse

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Archimedes' principle


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The weight of the liquid displaced by a floating body is equal to the weight of the body. The principle was not in fact stated by Archimedes, though it has some connection with his discoveries. The principle is often stated in the form: when a body is (partially or totally) immersed in a fluid, the upthrust on the body is equal to the weight of fluid displaced.


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