2006-10-03 13:00:44 · 9 answers · asked by jam1577 2 in Science & Mathematics ➔ Earth Sciences & Geology
The sky is blue partly because air scatters short-wavelength light in preference to longer wavelengths. Combined, these effects scatter (bend away in all directions) some short, blue light waves while allowing almost all longer, red light waves to pass straight through. 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.
2006-10-05 04:53:48 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Blue Sky
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1 - 10 of 1,714 Why is the sky blue?
The sky is blue due to a phenomenon known as diffuse...suspensoids in the atmosphere. The blue portions of the earth seen from space...
Asked by alejozilva - 8 months ago - Earth Sciences & Geology - 4 Answers - Resolved Questions
Why is the sky blue? We learnt that it takes the colour of the sea, but why is it blue over the continents?
...Earth's sky is blue because the...39;s why the sky appears blue : the blue light...quot; and the sky 's color as blue
Asked by Question - 5 months ago - Environment & Ecology - 7 Answers - Resolved Questions
Why is the sky blue?
no comments..
Asked by sunshinehalo - 7 months ago - Earth Sciences & Geology - 5 Answers - Resolved Questions
If Rayleigh Scattering means the sky appears blue, is it correct to say that the normal colour of air is blue?
...mechanism, then I would have to agree that the color of air is a very faint blue .The color of liquid oxygen is definitely blue , and the air is ~20.9...
Asked by power_of_zen - 1 month ago - Physics - 10 Answers - Resolved Questions
How do you get sky blue in oil painting?
...and Cyan. Light Ultramarine will get you closest to a typical sky blue with the least amount of mixing.I prefer Primary Cyan because...
Asked by barry1009 - 2 months ago - Painting - 8 Answers - Resolved Questions
why is the sky blue?
http://math.ucr.edu/home/baez/physics/ge... blue _ sky .html http://www.sciencemadesimple.com/... sky _ blue .html http://www.why-is-the- sky - blue .tv/
Asked by blondejohn2000 - 3 months ago - Astronomy & Space - 10 Answers - Resolved Questions
why is the sky blue?
...molecules scatter the whole visible light spectrum from the Sun except blue light spectrum. Thus we see the sky blue during the day.
Asked by codyd_98 - 6 months ago - Other - Science - 3 Answers - Resolved Questions
is the sky blue?
...prominently seen in gases. Rayleigh scattering of sunlight from particles in the atmosphere is one reason light from the sky is blue .
Asked by msomagucci - 8 months ago - - 4 Answers - Resolved Questions
Has anyone seen a blue orb in the sky tonight?
...fire (most likely plasma, a hot ionized gas) dropping from the sky and setting fire to whatever they touched. It's very possible...
Asked by Curious - 3 months ago - Other - Science - 8 Answers - Resolved Questions
why is the sky blue?
...pinks and oranges. Why is the sky blue ? What makes the sunset red...39;s.) WHY IS THE SKY BLUE ? The blue color of the sky ...
Asked by stumped - 2 months ago - Other - Home & Garden - 11 Answers - Resolved Questions
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2006-10-03 15:29:12 · answer #2 · answered by oracle 5 · 0⤊ 0⤋
When we look up, we are seeing deflected sunlight. Small particles in the air deflect sunlight down from the sky and into our eyes. Since these particles are so small, they only deflect small wavelengths of light. Blue light has a smaller wavelength than the other colors so it is deflected more. Since it is deflected more, we see blue as the color of the sky.
2006-10-03 13:05:31 · answer #3 · answered by Greg G 5 · 0⤊ 0⤋
the sky is blue because of the reflection of air particles.
2006-10-03 13:17:32 · answer #4 · answered by Anonymous · 0⤊ 0⤋
the sky is blue because its the reflection of the water
2006-10-03 13:02:17 · answer #5 · answered by bigxb175 2 · 0⤊ 3⤋
Light is reflected =)
2006-10-03 14:22:37 · answer #6 · answered by EL 1 · 0⤊ 0⤋
something to do with reflection of the light.........
2006-10-03 13:14:08 · answer #7 · answered by Hermione G. 2 · 0⤊ 0⤋
http://math.ucr.edu/home/baez/physics/General/BlueSky/blue_sky.html
2016-05-31 10:24:07 · answer #8 · answered by ? 6 · 0⤊ 0⤋
I didn't do it. Don't blame me.
2006-10-03 14:45:20 · answer #9 · answered by Anonymous · 0⤊ 0⤋