Rayleigh scattering (named after Lord Rayleigh) is the scattering of light, or other electromagnetic radiation, by particles much smaller than the wavelength of the light. It occurs when light travels in transparent solids and liquids, but is most prominently seen in gases. Rayleigh scattering of sunlight by the atmosphere is the main reason light from the sky is blue.
2006-08-07 14:43:50
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answer #1
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answered by Anonymous
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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.
As you look closer to the horizon, the sky appears much paler in color. To reach you, the scattered blue light must pass through more air. Some of it gets scattered away again in other directions. Less blue light reaches your eyes. The color of the sky near the horizon appears paler or white.
2006-08-06 23:21:07
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answer #2
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answered by barhud 3
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My daughter came home from school when she was in the sixth grade and asked me that question. I told her that I didn't know. She said, in science class they learned that the sky is blue because light from the sun reflects off the ocean and in turn makes the sky appear to be blue.
2006-08-06 23:35:33
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answer #3
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answered by Kahuku_77 1
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The sky is blue because the gas molecules in the atmosphere absorb much of the shorter wavelength light.
Also I read this poem as The Best Answer earlier today in a different question:
Tell me why the ivy twines
Tell my why the stars do shine
Tell my why are skies so blue <-----
Tell me why do I love you?
Tropisms make the ivy twine
Nuclear fusion makes stars to shine
Rayleigh scattering makes skies blue <----
Testicular hormones are why I love you
2006-08-06 23:28:47
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answer #4
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answered by SAM 5
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(m)
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. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight
The white light from the sun is a mixture of all colours of the rainbow. This was demonstrated by Isaac Newton, who used a prism to separate the different colours and so form a spectrum. The colours of light are distinguished by their different wavelengths. The visible part of the spectrum ranges from red light with a wavelength of about 720 nm, to violet with a wavelength of about 380 nm, with orange, yellow, green, blue and indigo between. The three different types of colour receptors in the retina of the human eye respond most strongly to red, green and blue wavelengths, giving us our colour vision
2006-08-06 23:25:17
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answer #5
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answered by mallimalar_2000 7
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ACTUALLY! the sky believe it or not, is pink! the oxegen that was formed a LONG LONG TIME AGO BEFORE LIFE ITSELF turned the sky blue, i have read this, but i can't seem to quite remember it all, but the sky is actually pink, without oxygen
2006-08-08 20:51:48
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answer #6
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answered by pimp_knuckles 3
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Sky is not blue. Basically, it is black, but due to sunlight and Rayleigh effect, it looks blue. For more details click below:
2006-08-06 23:56:56
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answer #7
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answered by Anonymous
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go to class 10
2006-08-07 00:02:51
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answer #8
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answered by priya 2
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boz i luv blue yaaar
only
and u knw blue is a clam color
2006-08-07 03:08:01
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answer #9
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answered by Amit G 4
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