Sunday, April 30, 2006


Hoover Dam

The Hoover Dam is a concrete gravity-arch dam.

Wikipedia's definition of a gravity-arch dam is "In a gravity dam, stability is secured by making it of such a size and shape that it will resist overturning, sliding and crushing at the toe. The dam will not overturn provided that the moment around the turning point, caused by the water pressure is smaller than the moment caused by the weight of the dam. "

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