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 182
h the Lines T 7z and T Now O and Q^re to one another, as 11 f, and 13 ■!•> that is, asthe Numbers in the middle of the Lines; and P is exprefsd by theSum of the Numbers, markd at the End, which is equal to 15 f. If O is equal to 11 f Ouncesj Q_i 3 ^ and P 15 f j there will beno Refl till the… … Chap. 16. of Natural Philofophy, 73 termining the Weight P we muft have regard to the Weight of thePulley: and to do this conveniently, we make ufe of fuch an one,which, together with its Hook and Box, weighs juft half anOunce. The Force with which a Body endeavours to defcend upon ajiinclind…
Physics · Natural Sciences
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