Why Does The Sky Appears Blue?

  1. ngureco profile image82
    ngurecoposted 8 years ago

    Why Does The Sky Appears Blue?

  2. Manna in the wild profile image69
    Manna in the wildposted 8 years ago

    This is a common question. The answer is called Rayleigh scattering. Dust particles equal to or smaller than the wavelength of light enhances the blue end of the spectrum when scattering is such that the observer receives more of the scattered wavelengths than the less energetic ones which have a longer wavelength and tend to get scattered less. This is why the horizon-sky appears more blue than that surrounding the sun - in the latter case you are  more in line with the non-scattered light so the effect is muted.

 
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