Thomas de Groot <tho### [at] degrootorg> wrote:
> However, clouds by
> themselves are always white/grey (water vapour, remember?). Adding
> colour makes no sense,

I'd say to be entirely acurate, clouds themselves are colorless, or even more
accurately - reflect the colors surrounding them.
The tiny water droplets are clear, as are polar bear hairs, but due to the
extreme curvature, reflect light back toward the viewer, refract the light, due
to the ior, and scatter it.
Rainbows are just lit-up water vapor (and are circular).

I have, for the past year taken much more notice of things "out there" IRL, and
the clouds are almost _never_ white/grey - they are all manner of pink and
purple, and orange, red and bluish-gray....
It depends on the time of day.

Just nitpicking, and "keeping it real".   ;)

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