Comment by ymhr
1 day ago
Isn’t that also wrong? From what I remember it’s the blue wavelengths of visible light that are scattered and make us perceive the sky as blue. UV may well be scattered too but we can’t see that, right? Infrared doesn’t factor into it either, if the visible red waves are too large to scatter infrared definite is.
Yes, that's what it's saying: "they scatter away the blue ones, which then bounces off the molecules and reaches our eyes".
It's written as if the UV and infrared are scattering the blue, which is not correct. Everything scatters off small particles, but shorter (blue) wavelengths scatter more (as the 6th power of the frequency), so most of the scattered light is blue. The details matter somewhat, i.e if the sun were a bit cooler, there'd be less blue in the incident light to scatter and you'd see something somewhat greener.
Yes, but the thing about UV and IR rays is a red herring.