Color Spectrum

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“A prism is used to disperse ordinary light, and slits are cut in paper S to only allow yellow and blue light to pass. These two simple colors will be blended by the lens, forming a light that is nearly white. The effect of mingling any two colors may be determined in this way.” -Avery 1895


Elroy M. Avery School Physics (New York: Sheldon and Company, 1895) 375


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