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
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,
optics - Why does the sky look black in pictures taken from the summit . . . In pictures taken from the summit of Mount Everest (such as this one), the colour of the sky is a very dark blue or even black in some pictures I remember from my own experiences of hiking in the Himalayas that the sky appeared to be darker blue as I climbed higher
Why is the sky blue: For a 3-year old - 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 My nephew asked me yesterday why the sky was blue I tried to explain it to him as best and as dumbly I could, but I failed
Why is the blue color of sky darker in high altitude regions? The sky is actually black Check that for yourself at midnight So in the daytime, you are looking at a black sky that is "illuminated" by mostly blue scattered sunlight The higher your altitude, the dimmer is the blue scattered illumination, so you start to see more of the basic black of the sky You can test this on your computer display, by going to the color palette and setting it to full
visible light - Why is water blue? - Physics Stack Exchange You guessed right, short, which is blue So blue gets scattered with a higher probability into our eyes whichever direction the light comes from, the bluer shorter wavelengths have a higher probability of getting scattered into our eyes, thus we see more blue (and yes, this is in part why the sky is blue)
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
The blue sky — is the simple Rayleigh explanation wrong? 13 The daytime sky appears blue because air molecules scatter Well, this is not actually wrong Molecules do scatter light, each molecule has a particular cross section And this cross section is very small, so the dependence on wave frequency and scattering angle also follows the Rayleigh formula
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