does anyone know the reason why the sky is blue?

Question

i have been asking that question for like a long time and i dont know why.....could you answer this question? thanx!

Answer 1

In a nutshell:

Light of different wavelengths is refracted at angles which are related to their wavelength (ie, check the cover of Dark Side of the Moon). Blue is refracted at a greater angle (to the normal) than red. Now, atmospheres refract light as well, but the mechanism is essentially random. So, because blue light is refracted at a greater angle, it is much less coherent than the other wavelengths, and therefore saturates the atmosphere more so than the other wavelengths.

This is the same reason that sunsets are red. Because the sun is lower in the sky, it has less atmosphere to go through so the light isn't scattered as much, and you see red (the other end of the wavelength).

Answer 2

This is actually a rather simple answer. The dust and gas in our atmosphere scatters sunlight, but the blue light gets scattered by far the most. So when you look up at the sky, you see this scattered blue light coming at you from all directions, coloring the sky blue. Actually this blue light is brighter toward the horizon and gets darker and darker blue as go rise to the zenith, because there is less air directly overhead. It is the same phenomenon that makes sunsets red, because the sunlight has to pass through so very very much air when the sun is on the horizon, and the red light is scattered least, so it shines through alone and essentially by itself, unscattered. Also blue eyes are blue for the same reason (as the sky is blue) since the human body can only make brown pigment and nothing else, but the brown pigment scatters light in such a way as to make blue eyes look blue, using only brown pigment!

Answer 3

It's the way the light reflects off the particles in the air. It's hard for me to explain.

"During daylight the sky has the appearance of an opaque blue surface, but this is the result of the air scattering sunlight." - Wikipedia

Answer 4

Here's probably an easier-to-understand explanation.

"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."

See link below, there are pictures to explain as well.

Answer 5

The sky is blue due to the absorption of the other color frequencies ( Light Wavelengths) that make up the color blue.

Answer 6

Basically the gases in the atmosphere absorb all colors except blue and reflect them back to your eyes

Read the true science:

Answer 7

the sun reflects off the water, into the sky, making it blue...but what makes the water BLUE? that's the question :)

Answer 8

Something about light reflecting off water vapor in the air.
Or math gurus gotta point

Answer 9

because when the sun shines, the atmosphere absorbs every colour but blue .. so you see blue ... same as a plant is green .. because it absorbs everything but green .... thats why at night the sky is black .. because theres no sunlight to absorb any colour

Answer 10

Are you in a physical science class right now? Thats the kinds of questions they ask.