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we perceive as red.  All the other colors we can see in nature are found somewhere along the spectrum between blue and red. Beyond the limits at each end of the visible spectrum are the short wavelengths of ultraviolet light and X-rays and the long wavelengths of infrared radiation and radio waves which are not visible to the human eye.

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We can separate a beam of white light into its component colors by passing it through a glass prism which causes the light beam to bend. Each wavelength, or color, bends at a slightly different angle which separates the white light into an array of

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White light is composed of many colors. If the visible portion of the spectrum is divided into thirds, the predominant colors are blue, green and red.