Henderson, C. Hanford (Charles Hanford), 1861-1941, Woodhull, John F. (John Francis), 1857-1941 · New York, D. Appleton and company · leaf 357
e violet, to .0007 millimetres in thered. These different rays are found to have different in-dices of refraction, and to suffer unequal bending on pass-ing into a second medium. In consequence, the variouscolored rays which, taken together, make a beam of whitelight, on passing through a prism are… … Fig. 233.—The spectrum. Newton, in 1676, was the first to explain the matter. Hedistinguished seven primary colors, and named them violet,indigo, blue, green, yellow, orange, and red. It will benoticed, in looking at the spectrum on the screen, that theviolet has been turned out of its path the…
Physics
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