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Mathematical elements of natural philosophy, confirm'd by experiments : or, An introduction to Sir Isaac Newton's philosophy (1747)

Gravesande, Willem Jacob 's, 1688-1742, Desaguliers, J. T. (John Theophilus), 1683-1744, tr, Adams, John, 1735-1826, former owner. BRL, John Adams Library (Boston Public Library) BRL · London : Printed for W. Innys, T. Longman and T. Shewell, C. Hitch ..., and M. Senex ... · leaf 154

An illustration from Mathematical elements of natural philosophy, confirm'd by experiments : or, An introduction to Sir Isaac Newton's philosophy, 1747, leaf 154
y beraifed by a fmall Power ; in that cafe, the greater the Number ofSheaves joind to the Weight (for the Ad:ion of the Power is not * ,^0. altered by the fixd Sheaves *) the lefs may the Power be to fuftain 262. the Weight; and a Power, which is to the Weight, as one to twicethe Number of Sheaves… … Chap. 13. of Natural Philofophy. ^ 3 The Pulley in that Cafe, confifls of two Parts; the firfl is fufpended 26?.and contains fixd Sheaves; the fecond is moveable with the Weight.Thefe confidered together are calld a Pulley. The Parts are alfocalld by the fame Name, whence one is an upper and the…

Physics · Natural Sciences

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