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Results tagged with scattering
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user 133289
Scattering is a general term for several physical processes in which radiation of some sort changes direction due to an interaction with a particle. Scattering can be classified by the type of radiation (ie, electromagnetic, x-ray, neutron), or by the relative sizes of the wave and the particle (ie, Rayleigh, Mie, geometric).
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Why is sky on Mars red?
Rayleigh scattering from gas molecules (preferentially scattering shorter wavelengths, ie indigo/blue) plus
(c). the sensitivity of our eyes (we see green best, and blue better than
indigo). … I've seen two explanations, both dependent on the fact that the much thinner Martian atmosphere means the effect of Rayleigh scattering of light by gas is dominated by the effect of airborne dust. …
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Why is sky on Mars red?
Because all that airborne dust is more similar in size to the incident visible photons, more Mie scattering occurs than Rayleigh scattering. … So the key difference with Earth is there is less of the Rayleigh scattering (because of Mars' thin atmosphere) and more of the Mie scattering (caused by tiny Mars dust particles), so the Mie scattering …
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Why is the colour of sunlight yellow?
It's not. It's white.
At least, most of the time it's white. When the Sun is near the horizon, and its light is passing through ~2000km of atmosphere rather than through only ~20km, then the blueish …
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