![]() ![]() The size of each colored sector was proportional to the corresponding width in the spectrum. The was first described in Newton's great work Opticks (1704). When the disk is spun quickly, the colors blur together and the eye cannot distinguish between the individual bands of color and perceives white. To demonstrate the effect of mixing all the colors of the rainbow, Newton devised a wheel with segments colored red, orange, yellow, green, indigo, and violet, which could be spun around by turning a handle. Of all the colors of the rainbow or spectrum. This was final proof that white light is made up ![]() The subject by passing the spectrum back through another prism and producing Although theories of the rainbow hadīeen put forward at least half a century before this, Newton cleared up This is the same effect as in the rainbow (where the raindrops act as prisms). The sunlight was dispersed (split up) by the prism into its component colors,Īnd spread out on paper. In about 1666 Newton passed sunlight through a triangular glass prism and obtained a spectrum of colors. Have placed him among the front rank of scientists. It hasīeen said that his study of light alone would His famous laws of motion and law of gravity. ![]() The English mathematician and natural philosopher Isaac Newton made many important contributions to the study of physics, even apart from ![]()
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