The sky is blue partly because air scatters short-wavelength light in preference to longer wavelengths. Where the sunlight is nearly tangent to the Earth's surface, 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, at sunrise and sunset.
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.
Individual gas molecules are too small to scatter light effectively. However, in a gas, the molecules move more or less independently of each-other, unlike in liquids and solids where the density is determined the molecule's sizes. So the densities of gases, such as pure air, are subject to statistical fluctuations. Significant fluctuations are much more common on a small scale. It is mainly these density fluctuations on a small (tens of nanometers) scale that cause the sky to be blue.
2006-10-01 19:22:12
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answer #1
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answered by Anonymous
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Yes it is, also the sky is blue because that is just the reflection of the ocean, or so that is what I was told.
2006-10-01 00:15:35
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answer #2
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answered by Anonymous
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Isn't the ocean blue because of the reflection of the sky? Will we ever know?
2006-10-01 00:53:55
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answer #3
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answered by susie 2
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i would say the sky is bluer than the ocean is deep simply because of the infinity of the sky versus the depth of the oceans
2006-10-01 00:09:54
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answer #4
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answered by sslender9 3
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infinite sky? finite oceans? I thought they were both finite.
And your comparing apples to the color orange.
2006-10-01 00:14:54
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answer #5
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answered by BillyBob 1
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Philosophical questions like this are interesting, but have no absolute answer. So, in true classical philosophical tradition I can answer your question as follows: Yes, No and Maybe. Pass the Guiness please mate!
2006-10-01 00:16:03
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answer #6
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answered by analyst 3
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yes, according the people aboard the ship Diversity, which is an old, old wooden ship from the civil war era.
2006-10-01 00:02:23
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answer #7
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answered by trader4578 4
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yes
2006-10-01 00:01:31
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answer #8
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answered by lori b 5
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Sure!
2006-10-01 00:01:25
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answer #9
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answered by Anonymous
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