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Talk:Rainbow (view source)

Revision as of 19:25, March 15, 2007

1,214 bytes added , 19:25, March 15, 2007

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==Rainbow = circle?==

How can a rainbow be a circle? Can you provide any satellite pictures that can support this claim? [[User:Grinder|Grinder]] 21:31, 12 March 2007 (EDT)

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:::Visit Niagara Falls. When you are standing in (say) Victoria Park on the Canadian side on sunset, you up at the top of the falls, looking into a wall of mist that extends above '''and''' below you, and you see a whole circular rainbow in it. It's incredible. You can get calendars and postcards with pictures of circular rainbows in the souvenir shops.

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:::Rainbows are huge circles around the "antisolar point." In late afternoon, the sun is behind you and above you, so if the "projection screen" of droplets only extends down to the ground, you only see ''less than half'' of a circle. To see a whole circle, you need to have a "screen" of droplets that extends above and below you.

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:::From an airplane, if you're above cirrus clouds, you can often see much smaller rainbow-like auras surrounding the shadow of the airplane. In a novel called ''The War Lover'' by John Hersey, a bomber pilot flying in formation points out to his crew that there is an aura surrounding the shadow of ''their'' plane, but not any of the others. Of course, the crew in each of the other planes would have seen the aura appearing around the shadow of ''their own'' plane. [[User:Dpbsmith|Dpbsmith]] 15:25, 15 March 2007 (EDT)

:Hey Grinder, here are some pics: [http://images.google.com/images?q=rainbows%20are%20circular&hl=en&sa=N&ie=UTF-8&oe=UTF-8&um=1&tab=wi Circular Rainbows] [[User:Jrssr5|Jrssr5]] 15:50, 13 March 2007 (EDT)

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