The seven follies of science; a popular account of the most famous scientific impossibilities and the attempts which have been made to solve them. To which is added a small budget of interesting paradoxes, illusions, and marvels (1906)
Phin, John, 1830-1913 · New York, D. Van Nostrand company · leaf 58
PERPETUAL MOTION 47 reasoned thus : A pint of water in the goblet a must more than counterbalance an ounce which the tube b will con- tain, and must, therefore, be constantly pushing the ounce forward into the vessel again at a, and keeping up a stream or circulation, which will cease only when the… … Fig. 9. up. He was confounded when a trial showed him the same level in a and in b." This suggestion has been adopted over and over again by sanguine inventors. Dircks, in his " Perpetuum Mobile," tells us that a contrivance, on precisely the same principle, was proposed by the Abbe de la Roque, in…
Scientific recreations · Geometry
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