2007-12-15 16:40:34 · 2 answers · asked by RucoRico 4 in Science & Mathematics ➔ Weather
It's not really; it's just that the same raindrops that form the rainbow also reflect some of that light directly back toward you. This is called "backscatter", and it causes more reflected light in the center of the rainbow than outside it.
2007-12-15 17:46:24 · answer #1 · answered by Keith P 7 · 2⤊ 0⤋
The outer edge of a rainbow is red (long wavelength), while the inner edge is violet (short wavelength).
The further you go past violet (shorter and shorter wavelengths), the less humans are able to see. As the violet becomes ultraviolet, the rainbow ceases to be visible to human eyes.
Likewise, the further you go past red (longer and longer wavelengths), the less humans are able to see. As the red transitions into infrared, the rainbow ceases to be visible to human eyes.
Any rainbow you see will always 'fade out' towards the center, and away from the center.
2007-12-16 00:52:58 · answer #2 · answered by lithiumdeuteride 7 · 1⤊ 0⤋