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The Visible Spectrum September 22, 2006

Posted by healthyself in Cell phone safety, Electromagnetic Spectrum, Electromagnetic waves, Light, Visible Light.
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The Elements of Light
The area of the graph under the horseshoe-shaped curve indicates the visible spectrum, the range of light frequencies that the human eye can sense unaided. The most vivid colors appear on the edges and the three primary colors„red, green and blue„almost form a triangle at the apex. It is the various combinations of these three light frequencies that make us perceive all the other colors.

http://web.canon.jp/Imaging/uwphoto/page/04-e.html

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