Wednesday, November 14, 2007

Circular Rainbow



This is somebody else's photo.

In the song "Moon River," Georgia songwriter Johnny Mercer wrote, "We're after the same rainbow's end." Actually, though, rainbows have no end. We usually don't see the full circle because the horizon of the Earth is in the way.

But if the sun is very low in the sky, either just before sunset or just after sunrise, we can see a half circle. The higher the sun is in the sky, the less we see of the rainbow.

The only way to see the full circle of a rainbow in the sky is to be above the raindrops and have the sun behind you. You would have to look down on the drops from an airplane.

Although many people claim they have seen a full circle of rainbow from the ground, I am not sure how this works..
Anyway, Andrew said he saw one on the plane... and didn't bother to tell me...
: (

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