The elements of natural and experimental philosophy .. (1834)
Phillips, R. (Richard), Sir, 1767-1840, Smith, E. A · New York, M'Elrath, Bangs & Herbert · leaf 54
nnon-ball oftwo pounds weight, with the velocity of 2000 feet per second, ismore than equivalent to sixty times the weight of the ball. Fig. 9.Ulus 1. The horizontal range,Fig. 9, AB, of a body project-ed at an elevation of 45° isgreater than AC or AD, theranges of bodies projected withthe same… … OF THE MECHANICAL POWERS. LXV. The Mechanical Powers are simpleengines, founded on the principles of the lawsof motion, which enable men to raise heavy-weights, move heavy bodies, and overcome re-sistance. Obs. 1. The principal moving powers are—first, the strength ofanimals, chiefly that of men…
Physics
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