that was an EXCELLENT video and explanation of Rayleigh Scattering. THANK YOU... You Nailed it !! I look forward to seeing your other videos... by the way Michigan Here..... your lectures are Global, thanks to RU-vid. :)
Yes, Oxygen and Nitrogen are scattering blue in atmosphere. However, not always blue for other atoms and modules. Look at Martian atmosphere, it called Mie-scattering (large particles scattering). There is iron oxide (dust) in atmosphere that scatters red. Sky is yellow/red on Mars. Sun is bluish. Carbon dioxide scatters dark blue. On Venus, sky is yellow.... etc...
I love the examples, beautiful photos, careful explanation and soothing voice. Best explanation I've seen till now. Just one question: What is the reason for the wavelength dependence of Rayleigh scattering?
Thanks.and yes my photos. The wavelength is determined by the electron behaviour in the gas the light interacts with. So oxygen in this case. So a planet with a different atmosphere would have different colour sky.
@@PhysicsHigh Rayleigh scattering seems to apply for all materials. Is this not correct? And what kind of electron behaviour? Thanks for the quick reply!
Good question In fact it is violet. You are correct, it’s scattered more strongly than blue. The issue here is our eyes. We only have three types of colour cones and the correspond to long, mid, and short wavelengths. (Incorrectly described as red, green and blue) The short wavelength cones react more strongly to blue than violet and so we ‘see’ blue.
Is the wiggling of electronic cloud the same phenomenon that causes the apparent slowing of light inside a material with refractive index >1? I think that they are different things, but I'm doubting right now
