Whether it's Saint Patrick's Day or National Find A Rainbow Day (April 3), everyone loves finding a rainbow - and maybe a pot of gold at the end. I can't tell you how to find a pot of gold, but I can ...
MACON, Ga. — A rainbow forms when sunlight enters a raindrop. When this happens, sunlight bounces around the raindrop and changes speed and direction. That's called refraction. These changes also ...
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