August 15, 2012

How Many Colors Are Really in a Rainbow?

Ethan Siegel, ScienceBlogs

AP Photo

It’s no secret that white light is the light that we see when all the colors shine together and are seen at once. This has been known for over 400 years, when Isaac Newton demonstrated that white light could be broken up into all the known colors by dispersing it through a prism.

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TAGGED: Rainbow, Colors


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