Why are rainbows shaped like an arc?

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Offline hamza

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Why are rainbows shaped like an arc?
« on: 09/06/2010 20:53:07 »
ok.. now plz someone tell me why we always get to see an arced rainbow .. although i've heard its circular and all that.. someone explain it in comprehensible terms plz...
« Last Edit: 13/06/2010 11:41:41 by chris »

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Offline stereologist

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Re: Why are rainbows shaped like an arc?
« Reply #1 on: 10/06/2010 16:04:19 »
The arc you see is a part of a circle. Notice that as you move, the rainbow appears to move. If you go up in elevation you see more of the circle. Go up high enough and you see a complete circle. You can create your own rainbow at noon and see a complete circle. When the sun is high overhead spray a mist around you. You should be able to create a "hula hoop" rainbow that goes around your body. This can be seen naturally in when standing in heavy mist blowing out from the base of a waterfall.

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Offline rosy

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Offline RD

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Re: Why are rainbows shaped like an arc?
« Reply #3 on: 10/06/2010 17:18:56 »