why is the sky blue!?ihave to know!?

Answer 1

http://math.ucr.edu/home/baez/physics/General/BlueSky/blue_sky.html

http://www.sciencemadesimple.com/sky_blue.html

http://world.std.com/~mmcirvin/bluesky.html

http://spaceplace.nasa.gov/en/kids/misrsky/misr_sky.shtml

Answer 2

Light travels through space in a straight line as long as nothing disturbs it. As light moves through the atmosphere, it continues to go straight until it bumps into a bit of dust or a gas molecule. Then what happens to the light depends on its wave length and the size of the thing it hits.

Dust particles and water droplets are much larger than the wavelength of visible light. When light hits these large particles, it gets reflected, or bounced off, in different directions. The different colors of light are all reflected by the particle in the same way. The reflected light appears white because it still contains all of the same colors.

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. (It is named after Lord John Rayleigh, an English physicist, who first described it in the 1870's.)

Visit the site I mention for more details, or type "atmosphere blue" in your search engine.

Answer 3

Like everyone that went to jr high school can tell you, the sun is passing through water vapor and is acting as a filter. It is blocking most colors out except blue and a few others higher in the light spectrum.

Answer 4

Atmosphere.

Answer 5

Nitrogen molecules in the atmosphere scatter the blue part of the spectrum

Answer 6

Because of the angle the light is being percieved at...white light contains several colors, which are revealed at different angles, etc.

When you see a sunset, someone on the other end of the earth see's a sunrise...

Answer 7

the atmospheres gases blend together and make the sky blue

Answer 8

I don't care why the sky is blue as long as the weather is nice. ^_^

Answer 9

Certain chemical substances in the atmosphere. Air, is one of them. Others..

Answer 10

i think the sky is blue because it reflexs off water

Answer 11

boy, is that an old question. Well old answer, is the photons hitting the atmosphere.