They depend on Physics

Rainbows. They depend on physics. You can look read up on it in Wikipedia here and here - yes, I get much of my random information about the world from there, but this particular article is well-backed, and stands unchallenged by umpteen years of school-science. - So. Rainbows depend on the refraction of light waves off of water molecules.
This diffraction/refraction business... it's pretty basic physics, you know? Waves just do that. You can hear it in sound, when a car whizzes by you really fast, and you experience it every day when you look at a glass of water or a puddle. It's a fundamental sort of thing, within how the matter/energy bit of reality works.
Then take the story of the creation of the rainbow in Genesis. If you assume that this account is true, which many Christians do, then that would mean that on the day that God made that covenant w/Noah and creation, about never flooding the earth again... he fundamentally changed some aspect of matter. What precisely that aspect is, I'm not sure... it could be anything from the ability of water to diffract light to the existence of light as a wave and not simply a particle. It could have had consequences as big as the beginning of color.
I like that idea. I like the bigness of it, and am bent on figuring out what the science behind rainbows is, and what other areas of the regular, every-day world it affects, just to be better able to guess at what might have changed that day. I'm too much of a lover of color to be able to resist.
over 'n out.
E.O.