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Why is the sky blue and green?
Published by: rose 2009-01-07

  • why is the sky blue and green?


  • Because of the lengths of the waves that come from the earth. the longest wave is Blue! and therefore the things we use on earth are predominately (although not to our eyes) blue. the shorter wave lengths are just lost in space whereas the blue is refracted. as for green the only thing i can presume is that green is similar to blue and has the similar length wavelengths.

    hope that helps


  • 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.
    WHY IS THE SKY BLUE::
    File Format: PDF/Adobe Acrobat - View as HTMLmakes the sky blue; the transmitted light makes the sunset reddish orange. green, blue, indigo, violet. Light is a wave, and each of these colors
    http://www.engr.uvic.ca/~lts/pdf/skyblue.pdf
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    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.
    Why is the sky Blue?::
    A clear cloudless day-time sky is blue because molecules in the air scatter blue of about 380 nm with orange, yellow, green, blue and indigo between.
    http://atoc.colorado.edu/~fasullo/pjw_class/blue_sky.html
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    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.


  • 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.


  • Your drinking to much wine not smoking enough weed


  • the same reason plants are green.
    They reflect all light colours but green, so the green gets cast onto your eye...


  • The sky is blue and green because is comprising of different of molecules of chemical
    How could you ask such undevelop question?


  • the color of the sky is determined by light from the sun reflecting through our atmosphere. check into how prizms break up light. this will let u know why sunlight is different colors at different times of the day. for instance, the sky is red in the evening and morning, due to light going thru more of the atmosphere before reaching u!!


  • reflection of the sea


  • it is bcause of scattering of light obeying Raleighs law of scattering of light. Between all the colours blue &violet colours predominates over the oher colours.but violet is not visible to us so thats why sky appears blue.


  • it has to do with the ice caps reflect the light of the sun and turns it blue, the sky is actually black


  • its the reflection of the ocean...


  • All colors have wavelengths that are diffused by oxygen, and nitrogen since blue has the shortest wave length its reflected up to ten times more than any other color. That is why the sky appears blue.





  • Nobody understands...any help please?
    50 points for someone willing to do this!!!!!!!!!!?


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