why the sky is blue?

Answer 1

Ordinary light is made up of seven colors. We see each of these colors only if they are reflected by something or split off in some other way. For example, leaves reflects green light and absorbs all other colors. Black absorbs all the the colors. White reflects all of them. When sunlight hits earth atmosphere, blue light is scattered by the air and it appears that the sky is blue.

Answer 2

We have all wondered, at some point, why the sky is blue. Now is the time to find out - after all, someday your kids will probably ask YOU why the sky is blue! Ready?

The light that comes from the Sun is white. That white light is actually a mixture of all colors, but because they are mixed up we don't see the separate colors just the white sunlight.

As the sun's light passes through our atmosphere, the light becomes scattered by all the air and particles such smog and dust. The part of the sunlight that gets scattered the most is the blue part. That means that the blue gets separated from the other colors and we get a blue sky!

At sunset or sunrise, the sun is at a very low angle, so the rays pass through even more molecules and particles. This scatters the light even more, separating red, orange and yellow from the white light. The more particles, the more scattering.

I hope this helps. :)

Answer 3

Gas molecules are smaller than the wavelength of visible light. If light bumps into them, it acts differently. When light hits a gas molecule, some of it may get absorbed. After awhile, the molecule radiates (releases, or gives off) the light in a different direction. The color that is radiated is the same color that was absorbed. The different colors of light are affected differently. All of the colors can be absorbed. But the higher frequencies (blues) are absorbed more often than the lower frequencies (reds). This process is called Rayleigh scattering.The blue color of the sky is due to Rayleigh scattering. As light moves through the atmosphere, most of the longer wavelengths pass straight through. Little of the red, orange and yellow light is affected by the air.

However, much of the shorter wavelength light is absorbed by the gas molecules. The absorbed blue light is then radiated in different directions. It gets scattered all around the sky. Whichever direction you look, some of this scattered blue light reaches you. Since you see the blue light from everywhere overhead, the sky looks blue.

Answer 4

Blue light, as an energy wave, has a higher frequency than green light (2nd) and red light (3rd).

I'm not an expert but I guess that when the sun light is maximal, the blue light becomes more visible than the two others because of the energy amount in the sunlight.

At dawn, the sky could be red for the same reason. Less energy is translated to low light frequency hence red.

Of course I have not seen often green skies yet. :) Safe around the aurora borealis. Green indicates the intermediate energy spectre, so I guess it isn't really visible. By the time that the blue energy spectre is reached from the red one, perhaps the sun is already roaring high in the sky.

TREES and PLANTS, meanwhile, are green. And that could be a reason why they're green. They'd just "want" to reach the average energy amount in the sun's beams to produce maximum oxygen from C02.

Answer 5

A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.

Answer 6

the different colours of the sky are because- clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.



The white light from the sun is a mixture of all colours of the rainbow. This was demonstrated by Isaac Newton, who used a prism to separate the different colours and so form a spectrum. The colours of light are distinguished by their different wavelengths. The visible part of the spectrum ranges from red light with a wavelength of about 720 nm, to violet with a wavelength of about 380 nm, with orange, yellow, green, blue and indigo between. The three different types of colour receptors in the retina of the human eye respond most strongly to red, green and blue wavelengths, giving us our colour vision.

Answer 7

Rayleigh scattering. Water in the atmosphere scatters blue light more than red/yellow light, so the yellow light of the sun goes straight to your eyes and the blue light is scattered everywhere else.

Answer 8

its an optical illusion the sky is actually black theres so much light coming through the atmosphere that the sky looks blue

Answer 9

And why was it neon turquoise when lightning struck next to the sulfur refinery? Photons and light waves can't explain it all.

Answer 10

because u think so