Why does the sky appear lighter below a rainbow..?

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Why does the sky appear lighter below a rainbow..?

and darker between two rainbows..?

2007-12-05 00:03:11 · 2 answers · asked by ~☆ Petit ♥ Chou ☆~ 7 in Science & Mathematics ➔ Weather

2 answers

The reasons are complex, they were described in a Scientific American article some time ago (but I can't find it...). Basically a raindrop acts a bit like a prism but not exactly like one. See the reference for a partial description.

2007-12-05 07:52:32 · answer #1 · answered by mis42n 4 · 0⤊ 0⤋

Because a rainbow is always centered on the sun.

2007-12-05 00:10:46 · answer #2 · answered by Darth Vader 6 · 0⤊ 0⤋