Naked Science Forum

Non Life Sciences => Physics, Astronomy & Cosmology => Topic started by: paul.fr on 25/07/2007 17:23:54

Title: When did the sky turn blue?
Post by: paul.fr on 25/07/2007 17:23:54

Surely there was a time when the sky was not blue! If so, when did it turn blue, and what colour may it have been before?

Title: When did the sky turn blue?
Post by: DoctorBeaver on 25/07/2007 18:07:43

It wasn't blue when I looked at it last night at 1am  [:D]

Title: When did the sky turn blue?
Post by: neilep on 25/07/2007 18:22:51

cos that's what the colour says in the kit !

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Title: When did the sky turn blue?
Post by: DoctorBeaver on 25/07/2007 18:23:45

(https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Fbestsmileys.com%2Flol%2F1.gif&hash=d8e6686452e290c988dbac6c3e01d75a)

Title: When did the sky turn blue?
Post by: eric l on 25/07/2007 18:30:33

This question - or a very similar one - has been asked before on this forum and one "paul.fr" (whoever that may be) answered :  "Rayleigh scattering"
See http://www.thenakedscientists.com/forum/index.php?topic=7909.0
Maybe he also knows when this started.

Title: When did the sky turn blue?
Post by: DoctorBeaver on 25/07/2007 18:42:44

Quote from: eric l on 25/07/2007 18:30:33

This question - or a very similar one - has been asked before on this forum and one "paul.fr" (whoever that may be) answered :  "Rayleigh scattering"
See http://www.thenakedscientists.com/forum/index.php?topic=7909.0
Maybe he also knows when this started.

(https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Fbestsmileys.com%2Flol%2F14.gif&hash=a6e82280b3639f30d2ac73375497878f)

Title: When did the sky turn blue?
Post by: paul.fr on 25/07/2007 20:32:41

I know nothing of this imposter. I have the memory span of a goldfish on medication that eats lots of forgetmenots. Now, where was that castle?????