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Archimedes' Principle -- discovered by Archimedes -- notes that a body immersed in a fluid is buoyed upward by a force equal in magnitude to the weight of the fluid displaced by the body. The upward force is a consequence of the fact that there is increasing pressure with increasing depth in a fluid in a gravitational field.
Since Archimedes' Principle applies to fluids in hydrostatic equilibrium, that means it is equally valid for liquids or for gases.
For a much more extensive consideration of Archimedes' Principle and it application to the problem of "the king's gold crown," visit the The Gold Crown -- |
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