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Scientific American, Vol. 56, No. 20 (May 1887) (1887)

leaf 6

An illustration from Scientific American, Vol. 56, No. 20 (May 1887), 1887, leaf 6
Rood, physicist and professor driven, and in the gin, with the monkey on it. It was balls is the power produced. of physics at Columbia College, New York ; Henry A. thrown out with such force as to raise the monkey to The tube is filled one side with water and the other Rowland, professor of… … gear is formed with an internal ratchet, Fig. 2, engaged ing balls will force it field, 111. ; Arthur W. Wright, physicist and professor by a pawl mounted in a transverse recess formed in the out until it rolls off on to the proper place on the of molecular physics and chemistry at Yale University,…

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