Text-book of general physics, for the use of colleges and scientific schools (1899)
Hastings, Charles Sheldon · Boston: Ginn & company · leaf 615
e thelight travels from R toM and back again, themirror will have turned through a small angle, so thatthe light on its second reflection from R will depart in adirection slightly different from RS, and may be observed atsome point, as S. Thus, from a knowledge of the distancesSR, R3f, SS. and the… … s s Fig. Hi. 544. Theories Concerning the Nature of Light. — Two theo-ries of the nature of light have been held, known respec-tively as the wave theory and the emission theory. In thelast quarter of the seventeenth century Huyghens publisheda paper in which he explained the familiar phenomena of…
Physics
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