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https://theconversation.com/the-sky-isnt-just-blue-airglow-makes-it-green-yellow-and-red-too-196386>
"Look up on a clear sunny day and you will see a blue sky. But is this the true
colour of the sky? Or is it the only colour of the sky?
The answers are a little complicated, but they involve the nature of light,
atoms and molecules and some quirky parts of Earth’s atmosphere. And big lasers
too – for science!"
Share and enjoy,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
