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What is a rainbow?

Published Friday, November 03, 2006 by R. Edmondson | E-mail this post

A rainbow is an arc or bow of light separated into concentric bands of several colors that exhibits the range (visible light spectrum) of colors - red, orange, yellow, green, blue, indigo, and violet in that order. It appears (created) when the Sun's light rays are refracted and reflected (called dispersion of light) by drops of mist or rain (water droplets) falling or floating through the air (atmosphere). It is usually visible in the sky opposite to the sun during or immediately after a rain shower. It can also be seen in the spray of waterfalls when viewed with the sun behind the observer. Thus, rainbow in simpler terms, is a multicolored concentric arc or bow in the sky that is formed (and visible) in part of the hemisphere opposite to the Sun by the dispersion (refraction and reflection) of the sun's rays in drops of falling rain.

To learn more how a rainbow is formed, visit by other site (Did You Know?) and read the article: How Rainbows are Formed - What Causes A rainbow?

Labels: Colors, Geography, Physical Geography

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I'm R. Edmondson
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