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 342
that the Ray may pafs throughin the fame manner as is reprefented in Figure 4, Plate no; thatis, that it may be equally inclind to each Surface of the Prifm. 3484. This Ray falls perpendicularly upon the white Paper T, extendedupon a wooden redangular Limb, which coheres with the Stand P, 2775. and… … Chap. 20. of NaturalPhilofophy. 243 Paper fhould be removd to the Diftance of fixteen or twenty Feetfrom the Prifm. We determine the requird Pofition of the Prifm, and which 3485.was (hewn above, if the Prifm be turnd about its Axis a littlej infuch manner, that the Image may afcend, which…
Physics · Natural Sciences
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