A rainbow is an optical and meteorological phenomenon that is caused by reflection of light in water droplets in the Earth's atmosphere, resulting in a spectrum of light appearing in the sky. It takes the form of a multicoloured arc.
Rainbows caused by sunlight always appear in the section of sky directly opposite the sun.
In a "primary rainbow", the arc shows red on the outer part and violet on the inner side. This rainbow is caused by light being refracted while entering a droplet of water, then reflected inside on the back of the droplet and refracted again when leaving it.
In a double rainbow, a second arc is seen outside the primary arc, and has the order of its colours reversed, red facing toward the other one, in both rainbows. This second rainbow is caused by light reflecting twice inside water droplets.
Other articles related to "rainbow":
... Rainbow Group may refer to two political groups of the European Parliament Rainbow Group (1984–1989) Rainbow Group (1989–1994) ...
... The Bernarr Rainbow Trust was set up by Rainbow in 1996 to support projects connected with music education ...
... Golden Rainbow was the title of a Broadway musical that opened in 1968 ... The previews for Golden Rainbow began at the Forrest Theatre in Philadelphia on November 28, 1967, moving to its new location in New York City at the Shubert Theatre on Broadway on December 27. 19, 1968, its run resumed at the George Abbott Theatre on Broadway, where Golden Rainbow played until it closed on January 11, 1969 ...
... as Louisa Atherton, recently widowed, returns to Rainbow's End ... Becomes editor of The Rainbow Echo, responds to community issues, problems with Tim and Nick ... Continues self-promotion, buys The Rainbow Echo, appoints Tim as manager ...
Famous quotes containing the word rainbow:
“We have not the reverent feeling for the rainbow that a savage has, because we know how it is made. We have lost as much as we gained by prying into that matter.”
—Mark Twain [Samuel Langhorne Clemens] (18351910)
“One doesnt look at a rainbow any longer that lasts a quarter of an hour.”
—Johann Wolfgang Von Goethe (17491832)
“She saw in the rainbow the earths new architecture, the old, brittle corruption of houses and factories swept away, the world built up in a living fabric of Truth, fitting to the over-arching heaven.”
—D.H. (David Herbert)