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Scientific American 1911-03-04
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One of the three valves constructed to control the water that drives hydraulic turbines of 12,000 horsepower each at Niagara Falls. Size of the valve demonstrated by placing driving an automobile, carrying five men, through it.
Source: Steve Kirch, creator of a wonderful website about SCIENTIFIC AMERICAN in the past
Restoration by: magscanner
- Created on
- Wednesday 25 February 2009
- Posted on
- Wednesday 25 February 2009
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