[thulldud]

'Why is the sky blue?'

In-credible! Who doesn't know what color the sky is?

Oops, sorry...the question is "why" it's blue?

Well, duh. Everybody knows its Rayleigh scattering.

[ProtectOurFreedom]

Yeah, but to really comprehend Rayleigh scattering, you have to be proficient in Maxwell's equations. That might take another afternoon of study.

BTW, did you hear last week that science is actually unsure of the origins of clouds and new theory suggests they originate from Cosmic rays, not entirely from dust nucleation sites in the atmosphere? I thought that science was "settled" long ago.

[grey_whiskers]

Well, duh. Everybody knows its Rayleigh scattering.

I bet Robert Gibbs doesn't.

Cheers!