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Thursday, March 5, 2015

MYTH ON BOUYANCY (SOURCE: MYTHBUSTERS BY N. SEARLE)


QUOTED:

"The idea that certain things float in other things is as simple and orderly as it is wrong.  What looks like something floating is really something that is pushed upwards by something else...A dense something like a body of water, despite its drippy, wet appearance, has all the authority it needs to keep a mighty beast like a 100,000-ton Nimitz-class aircraft supercarrier, or even a fully loaded 600,000 ton supertanker afloat, despite the fact that both vessels are made of steel (denser than water)...The point is to keep the ship afloat by having its average density less that that of water.  Ships do this by having a shape that allows for air to lower this average."

(Very interesting fact, thanks to Mr Searle for busting a myth).

Source:  Searle, Nicholas. Mythbusters: Mythopedia. p. 66.

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