Looking for rainbows

With coffee cup in hand, I peered up at the clearing morning sky. After a refreshing nighttime rain storm, the sun was rising. The blues of the sky and bright yellows of the clouds gave promise of a rainbow somewhere. I searched in what I thought would be a likely direction, opposite the sun. No rainbow. Oh well, I thought, the angle must not be right. Or there were not enough water droplets remaining in the sky to produce one. Rainbows are all about the angle of the sun’s light to raindrops then reflected to the eye. The correct angle is 42 to 43 degrees, at least by our current refraction laws of physics.

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