why is the sky blue?

Blue is most favorable color after scattering. This question had been asked and answered many times.
he sky is blue because air scatters short-wavelength light in preference to longer wavelengths. When we look toward a part of the sky not near the sun, the blue color we see is blue light waves scattered down toward us from the white sunlight passing through the air overhead. Near sunrise and sunset, most of the light we see comes in nearly tangent to the Earth's surface, so that the light's path through the atmosphere is so long that much of the blue and even yellow light is scattered out, leaving the sun rays and the clouds it illuminates red.

Scattering and absorption are major causes of the attenuation of radiation by the atmosphere. Scattering varies as a function of the ratio of the particle diameter to the wavelength of the radiation. When this ratio is less than about one-tenth, Rayleigh scattering occurs in which the scattering coefficient varies inversely as the fourth power of the wavelength. At larger values of the ratio of particle diameter to wavelength, the scattering varies in a complex fashion described, for spherical particles, by the Mie theory; at a ratio of the order of 10, the laws of geometric optics begin to apply.

2007-03-21 16:45:06 · answer #1 · answered by chanljkk 7 · 1⤊ 0⤋

I don't mean to be rude, but you should search before asking a new question. For example, when I type in "why is the sky blue" into the "Search for questions" box at the top of the page, I get the following:

#1 why is the sky blue?
why
Asked by rebecca_04042 - 2 minutes ago - Earth Sciences & Geology - 0 Answers - Open Questions

#2 why is the sky blue?
Asked by Lance S - 2 hours ago - Earth Sciences & Geology - 9 Answers - Open Questions

#3 why is the sky blue?
Asked by cvcheerbabe14 - 50 minutes ago - Earth Sciences & Geology - 14 Answers - Open Questions

#4 why is the sky blue?????????
Because the sea weed.
Asked by xxxtamika xxxxwanikaxxxx - 1 month ago - Astronomy & Space - 26 Answers - Resolved Questions

#5 Why do so many people ask, "Why is the sky blue?"?
... that contain 'why' 'sky' 'blue' anywhere in the text. Y!Search: why sky blue...
Asked by RockyQA - 1 year ago - Other - Science - 3 Answers - Resolved Questions

#6 Why don't all Yahoo! Answers users already know that the sky is blue because of Rayleigh scattering?
Possibly because some of them are minors and some of them...
Asked by me - 8 months ago - Yahoo! Answers - 8 Answers - Resolved Questions

2007-03-21 23:38:02 · answer #2 · answered by Tom 3 · 0⤊ 0⤋

http://optics.kulgun.net/Blue-Sky/

2007-03-22 23:17:08 · answer #3 · answered by Dome Slug 3 · 0⤊ 0⤋

The water reflection converts to blue, and that's why the sky is BLUE, no no ..... i m kidding, it is blue because it is blue. haa haa haa.....

GOD BLESS U ALL !!

2007-03-21 23:47:51 · answer #4 · answered by nom 1 · 0⤊ 1⤋

light scattering and transmission of the specific wave length through the atmosphere.

2007-03-22 03:10:51 · answer #5 · answered by sureshcm m 4 · 0⤊ 1⤋

because the sun reflects the ocean
kasi nagrereflect yung sun sa ocean

2007-03-21 23:41:53 · answer #6 · answered by samtingwong 2 · 0⤊ 1⤋

reflection of the water

2007-03-21 23:38:43 · answer #7 · answered by choirgirl1987 2 · 0⤊ 1⤋

'cuz it's prettier than orange...

2007-03-21 23:52:38 · answer #8 · answered by Anonymous · 0⤊ 1⤋

why is the sky blue?

8 answers