The part of the rainbow that you can see is. There's more to the rainbow than what you see ... outside the red end and outside the violet end. Those regions are composed of parts of the spectrum that are not visible.
There can be multiple rainbows visible at the same time, although it is rare to see more than two. The primary rainbow is usually brighter and located closer to the horizon, while the secondary rainbow is fainter and located above the primary one.
The color with the most energy in the rainbow is violet. Violet light has the shortest wavelength and highest frequency in the visible spectrum, which means it carries more energy than the other colors in the rainbow.
More Than the Rainbow - 2012 was released on: USA: 2012
Newton originally studied the rainbow after creating one using a prism. He originally commented on 5 colours but then added another two to be comparable with notes in a musical scale.
Rainbows can be seen during the day when the sun is shining and rain is falling at the same time. The sunlight is refracted and reflected by the raindrops, creating the spectrum of colors that form a rainbow. It is important to be at the right angle to the sunlight and rain to see a rainbow during the day.
There are conditions that permit viewing two rainbows at once. The primary rainbow is as one might expect, but a secondary rainbow is visible above the first one. There is a nice picture and a description posted at Wikipedia, and a link is included.
A rainbow does not refract light. A rainbow is the result of refracted light. Moisture in the air acts a billions of tiny prisms, causing sunlight to refract, or split, into the visible light spectrum of colors.
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Science!
Split you computer screen into 3 sections: 1. nyan.cat (its a website) 2. Rainbow Unicorn Attack (RUA) 3. tecno kitty (on youtube) Start to play RUA at the same time as watching the other 2. Do this for more than 10 min and barf a rainbow.
Ultraviolet, X-rays, and gamma rays have more energy than visible light waves.