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 594
ht, in a Ratio compounded of thefe fix RatioSj of i/139 to v144,. 4 to I, 139 to 144% 14 to 35, 144 to 139 , and 452 to S55-The firft, third, and fifth, are reduced to the Ratio of y^ 144. to /139-5-1666; and SoSeconds are to the Time fought, ^.4X 1.4x452 xi2 is to 1x35x355X y139. which Time is… … Chap. ro. cf Natural Philofophy. 599 C H A P. X. Of the Rim?ii7ig of Rivers, D E F I N r T I ON I. THE Water that runs by lis own Gravity^ in a ChauMel i66j.open above, is cdlkd a River. Definition 2.A River is faid to remain in the fame State, or fo be in u per- i668.manent State, when it jlows…
Physics · Natural Sciences
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