A dictionary of electrical words, terms and phrases (1898)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W. J. Johnston company · leaf 326
of flintglass, be placed together in the manner shown,then the ray R, will be transmitted at R, free fromcolor, but will not emerge par ailed to its originaldirection ; in other words, it suffers refraction orbending. Consequently such a combination canbe used to free a pencil of light from false…
Electricity · Electrical engineering
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