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 268
from this is diminifhed-^ for th apparent Magnitude follows the Ratio of the Angle under whicl * 3117. the Objed is feen *, and this Angle, the Line remaining, which i theBafeofit, is diminifhd, as the Bafe recedes; becaufe we fpeal of the fame Angle. 3 IC4. ^^^ %^ ^^^g removd further (Fig. 2.)… … Chap. II. of NaturalPhilofophy. 187 There are Glafles that have one Surface plane, and on the other 3 r^^.Side there are feveral plane Surfaces that make Angles with oneanother j through thefe the Rays proceeding from the fame Pointfuffer different Refraftions; and by every Surface are made to…
Physics · Natural Sciences
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