A rainbow is an optical and meteorological phenomenon that causes a nearly continuous spectrum of light to appear in the sky when the Sun shines onto droplets of moisture in the Earth's atmosphere.
It takes the form of a multicoloured arc, with red on the outside and violet on the inside..
For more information about the topic Rainbow, read the full article at Wikipedia.org, or see the following related articles:
Sun dog A sun dog or sundog (scientific name parhelion) is a relatively common atmospheric optical phenomenon associated with the reflection/refraction of ... >
read more
Fog Fog is a cloud in contact with the ground. Fog differs from other clouds only in that fog touches the surface of the Earth. The same cloud that is ... >
read more
Solar radiation Solar radiation is radiant energy emitted by the sun, particularly electromagnetic energy. About half of the radiation is in the visible short-wave ... >
read more
Waterfall A waterfall is usually a geological formation resulting from water, often in the form of a stream flowing over an erosion-resistant rock formation ... >
read more
Note: This page refers to an article that is licensed under the GNU Free Documentation License. It uses material from the article Rainbow at Wikipedia.org. See the Wikipedia copyright page for more details.