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Tutoring and Teaching on Trisphee
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Potironette
petite fantaisiste
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91
What is scattering of light? In class we were talking about how "Rayleigh scattering" was gas molecules absorbing and re-emitting light in all directions, "with the proportion of light scattered related to its wavelength, yielding blue sky and red sunsets." And then: 'Because the Sun’s output begins to drop off at violet wavelengths, most of what reaches us due to scattering is blue and green, yielding familiar “sky blue.”'
So, lights are made of photons at different energies, and when they hit stuff like gas molecules they get "absorbed" then "re-emitted" (whatever those mean) and then the "proportion" (amount?) of light "scattered" (seen?) is based on the "wavelength" (of the light before it hit the gas?) and sunlight has photon particles with energies that make blue-light wavelengths which is why we see blue?
I end up nodding off a lot in physics class since it's later in the day. Hence the many holes in my learning :/
Posted 01-17-2017, 06:52 PM