Elementary natural philosophy : designed for high schools and academies (1881)
Griffin, La Roy F. (La Roy Freese), 1844-1916 · Philadelphia : Sower, Potts & Co. · leaf 233
LEA£CN TOE POLAKIZATION. 223 754. Reason for Polarization. A ray or light may beconsidered as made by transverse movements of the mole-cules of the medium in all directions, arid its cross sectionwould then be Fig. 265. This by the principle of Compo- … Fig. 265. Fig. 266. Fig. 267. sition of Forces* is the same as in two directions at rightangles to each other, Fig. 266. Any polarizing instrumentabsorbs those which move in one direction, that is changesthem to some other kind of motion. The condition of theray is then shown by Fig. 267. The…
Physics
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