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- Why is the sky not purple? - Physics Stack Exchange
The net effect is that the red and green cones are stimulated about equally by the light from the sky, while the blue is stimulated more strongly This combination accounts for the pale sky blue colour It may not be a coincidence that our vision is adjusted to see the sky as a pure hue
- optics - Why does the sky change color? Why is the sky blue during the . . .
Blue light is scattered more than red light, so during the day when we look at parts of the sky that are away from the sun, we see more blue than red During sunset or sunrise, most of the light from the sun comes towards the earth at a sharp angle, so now the blue light is mostly scattered away, and we see mostly red light
- visible light - Why is the sky never green? It can be blue or orange . . .
Can you explain why the colour of the sky passes from blue to orange red skipping altogether the whole range of green frequencies? I have only heard of the legendary 'green, emerald line flash' that appears in particular circumstances Green flashes are enhanced by mirage, which increase refraction is more likely to be seen in stable, clear
- Why is the sky *uniformly* blue? - Physics Stack Exchange
The sky seems to be more uniformly blue than the typical explanation suggests Further, it follows from the usual explanation that blue light is partially reflected back into the space
- Why is the sky blue and the sun yellow? - Physics Stack Exchange
The blue color of light of the sky is due to Rayleigh scattering But the sun itself appears yellow in color whereas the scattered sunlight itself appears blue Why does this happen? Should the sun
- optics - Is the Air Blue? - Physics Stack Exchange
Why does the sky change color? Why is the sky blue during the day, red during sunrise set and black during the night? (5 answers) Closed 10 years ago Randall Monroe, a credible source in my opinion, says that the sky is blue because the air is: Normal light interacts with the atmosphere through Rayleigh scattering
- Rayleigh equation as explanation for sky being blue
This doesn't match with our experience of the sky Given the hand-wavy nature of the explanations, I wonder if Rayleigh scattering truly is the explanation for why the sky is blue
- Is there more to the the conventional explanation of Why is the sky . . .
An important note: If the Rayleigh formula were accurate (which it is), then the color of visible light most scattered wouldn't be blue, but rather violet, which is of a shorter wavelength We should by all means seeing a purplish sky instead, but it just so happens that our [eyes are more sensitive to blue light than violet] [1] so the blue color predominates in our vision [1
- visible light - Why is the sky blue? - Physics Stack Exchange
Possible Duplicate: Why does the sky change color? Basically what the title says What mechanisms are significant and how do they contribute to make the sky blue Also when the sky is not blue,
- Why does the sky suddenly look gray through this window?
But why does it look so much less blue, when the values of the red and green channels are still smaller than the blue? That is entirely an effect of human perception
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