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 310
Circumference of the Circle. When the radiant Point RisF.2,3, 4,5. ^i^hin the Sphere, there are four Points of the. Inflexion F, /, in the direft Ray, and two others d, d, in reflefled Rays, fuppofing the inci-dent Rays to be perpendicular to the direcft Ray.334S. -^^^ Jf the Radiant Point be…
Physics · Natural Sciences
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