. The principles of physics. import of this phenomenon, refer the colors to the heterogeneity of white light. 2A succession of colors in the order of their refrangibility, obtained from anysource of light, is called a spectrum. 370 ETHEK DYNAMICS. refracted and dispersed by the prism and falls upon the retina of the eye,you see, not the narrow white strip in its true position, but a spectrumin the position A. This experiment is performed in a lighted room. K Experiment S. — Instead of a continuous white S strip, paste short strips of red, white, and blue, end to end, on the black card,
. The principles of physics. import of this phenomenon, refer the colors to the heterogeneity of white light. 2A succession of colors in the order of their refrangibility, obtained from anysource of light, is called a spectrum. 370 ETHEK DYNAMICS. refracted and dispersed by the prism and falls upon the retina of the eye,you see, not the narrow white strip in its true position, but a spectrumin the position A. This experiment is performed in a lighted room. K Experiment S. — Instead of a continuous white S strip, paste short strips of red, white, and blue, end to end, on the black card, as represented inFig. 280. The spectrum of each color is given onthe right, the light portions representing the illu-minated parts. It will be seenthat in the spectrum of the red,the green, blue, and yioletportions are almost completelydark, but there is a faint traceof orange ; in the spectrum ofthe blue, the red, orange, andyellow are wanting, blue andviolet are present, and a smallFIG. 279. quantity of green. j,,^
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectphysics, bookyear1895
