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Article: Waterpower
- Article from:
- Dictionary of American History
- Author:
CopyrightCOPYRIGHT 2003 The Gale Group Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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WATERPOWER
WATERPOWER
is the product of falling water acting by impact, weight, or reaction on a wheel. For many centuries the simpler forms of waterwheels were made of wood and varied in diameter and breadth of rim, with flat or concave paddles or hollow troughs, known as buckets, attached around the circumference. Power came directly from water flow past a streamside (or boat-affixed) paddlewheel with paddles that dipped into the stream current. The noria, probably the most ancient of waterwheels and still widely used throughout the world, was of this type; it raised water from the powering stream by means of small vessels attached around the circumference.
A far more common and ...
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