Why is the sky blue?

Answer 1

Sky is blue because the water molecules reflect the sun light as a prisma and causes the same efect than in water.....

Answer 2

The correct answer is Raleigh scattering. It is not the result of oxygen or nitrogen or water. In fact, a sky made of helium or carbon dioxide, or nearly any other gas would be blue. Even in deep space, clouds of dust appear blue for the same reason.

Raleigh scattering is the name of a process where light waves are randomly scattered by tiny particles, usually dust or gas. the shortest wavelengths of light are much more strongly scattered than the longer wavelengths because they interact more easily with tiny particles.

This is because lightwaves are much, much larger than atoms and molecules, and larger wavelengths can literally "step around" many of the atoms that a smaller, bluer lightwave would collide with. To give you a perspective, red light is about 650 to 700 billionths of a meter in wavelength, while violet is closer to 400 nanometers (billionths of a meter). A hydrogen atom is a tenth of a nanometer wide, so you can see that it is thousands of times smaller than lightwaves.

Blue and violet are scattered more easily, but our eyes are far less sensitive to violet, and more sensitive to blue. If you could see ultraviolet, the sky would actually be more violet than blue.

Red lightwaves are nearly twice as large as blue lightwaves, and it does not scatter well. Infrared hardly scatters at all, and some of it is actually absorbed by the air so it never makes it to the ground.

Take an empty aquarium, fill it with water, and add a few drops of milk. You know that milk is white, but in a dark room, shine a flashlight through the tank. It will appear bluish because of Raleigh scattering. Now, look at the flashlight through the tank of water and it will appear reddish, exactly like a sunset. This scattering is what makes the sky blue and leaves the sunset red as a result.

Answer 3

The ocean reflects off of the sky, the sky is blue because of light filtered through the ozone or something... Ok wait I think I remember, I think that all colors in the light spectrum reflect off the ozone except for blue, so it makes the sky look blue.

Answer 4

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.

Now i wish i could actually explain that to you in my own words..lol

Answer 5

Nobody can know which color the Sky has, we can see it blue because of the sun reflection, but really up there, there is no sky is an infinite universe, and is dark and lonely, probably some day we can be living over there, or our relatives if we don't care our planet like we are doing it, we ca start stopping smoke, don't you think?

Answer 6

The sky is blue due to it's Oxygen content ;-) If there were other gases in the air that constituted 21% like Oxygen does, the sky would be a different color.

Answer 7

The sky is blue because that is the light that passes through the moisture in the atmosphere. The water droplets in the atmosphere cause light to bend and refract and the blue light is what is transmitted through. P.S Grass is green because of chlorophyl no not bore-aphyl

Answer 8

Because the Oxygen or O2 in the air is Blue in Color in water in the ocean H2O) the color is deeper blue , if you condense the pure Oxygen into a liquid form it is a cobalt Blue color . Or a lot of people will go into how the light reflects off of the air ( like it does everything else ) and certain colors are absorbed and others are reflected and we see a combination of the reflected light . but really its because the air that we breath is Blue .,

Answer 9

the sky is blue when the sun is directly overhead because blue light waves which are shorter come through the earth's atmosphere. when the sun is directly on top the distance light has to travel to reach the ground is substantially smaller than when the sun is setting. When the sun is setting or rising, only red wave come thru because the light has to go through more atmosphere and only read light can go thru.

Answer 10

The sky is blue due to Rayleigh Scattering. When light travels through a gas (our atmosphere), the light is scattered. There is no gas in space, so space is not blue.