brachistochrone

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brachistochrone

[bruh-kis-tuh-krohn]
noun Mechanics.
the curve between two points that in the shortest time by a body moving under an external force without friction; the curve of quickest descent.

Origin:
1765–75; < Greek bráchisto(s) shortest (superlative of brachýs brachy-) + chrónos time

brachistochronic [bruh-kis-tuh-kron-ik] , brachistochronous [brey-kuh-stok-ruh-nuhs, brak-uh-] , adjective
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World English Dictionary
brachistochrone (brəˈkɪstəˌkrəʊn)
 
n
maths the curve between two points through which a body moves under the force of gravity in a shorter time than for any other curve; the path of quickest descent
 
[C18: from Greek brakhistos, superlative of brakhus short + chronos time]

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Encyclopedia Britannica
Encyclopedia

brachistochrone

the planar curve on which a body subjected only to the force of gravity will slide (without friction) between two points in the least possible time (see ). Finding the curve was a problem first posed by Galileo. In the late 17th century the Swiss mathematician Jakob Bernoulli offered a reward for the solution of this problem. He and his younger brother Johann, along with Gottfried Wilhelm Leibniz, Isaac Newton, and others, found the curve to be a cycloid (q.v.). See also isoperimetric problem.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
Another prof of mine told me about a different problem called the terrestrial brachistochrone.
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