Is the sky blue?

Discussion in 'Et Cetera, Et Cetera' started by findfirefox, Aug 20, 2007.

?

Is the Sky blue?

  1. Yes

    26.3%
  2. No

    73.7%
  1. findfirefox

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  2. Osiris

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    It's cerulean.
     
  3. AlteredEgo

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    Technically speaking, no. It certainly does appear to be blue, however.
     
  4. Ethyl

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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.

    Or so I learned...
     
  5. col1974

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    what mercurial bliss said plus

    the increasing depth of atmosphere that occurs at dusk brings around a predominant scattering of red / orange wavelengths within white light toward the observer making the sky apear the colour it does.
    Atmospheric dust and other pollutants have a broadly similar effect.
    Is that about right mercurial?
     
  6. Pecker

    Pecker Retired Moderator
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    No, I don't think it's sad at all.
     
  7. col1974

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    Good I'm glad to hear it Pecker.
    Wouldn't want you all sad or nuffink! ;)
     
  8. Ethyl

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    Yep, unless my old science textbook was wrong.
     
  9. SpoiledPrincess

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    Once it was green, I loved that even more than when it was pink and gold.
     
  10. homelessmandril

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    What we should really be asking is this: is blue blue?




    .......ahhhhhh, do you see?
     
  11. Ethyl

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    "The sensation of blue is evoked by light having a spectrum dominated by energy in the wavelength range of about 440–490 nm. Blue is considered to be one of the three primary additive colours in the RGB system; blue light has the shortest wavelength range of the three additive primary colours. The English language commonly uses "blue" to refer to any colour from navy blue to cyan.
    The complementary colour of blue in colour science is yellow (on the HSV colour wheel), while in art the complementary colour to blue is considered to be orange (based on the Munsell colour wheel)."



    -Wikipedia

    Blue - Wikipedia, the free encyclopedia
     
  12. jeff black

    jeff black <img border="0" src="/images/badges/gold_member.gi

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    I'm confused.. I thought we were having a naked sex fleshpile with so many hands and boobies, that no one was able to know who's hand was on your booty.:smile:

    As for the sky, everyone knows it is chocolate coloured.
     
  13. Mem

    Mem
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    I think the OP is a sad excuse for a human being.
     
  14. findfirefox

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    Get over yourself.
     
  15. homelessmandril

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    Sorry, even Wikipedia isn't authoritative enough to defy the impossibility of objective truth :biggrin1:

    And besides, is wikipedia wikipedia?




    .....ahhhhhh, do you see?
     
  16. ManlyBanisters

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    They went on forever
    And they -- when I
    We lived in Arizona
    And the skies always had little fluffy clouds
    And they were long and clear
    And there were lots of stars, at night
    And when it rained it would all turn
    It -- they were beautiful
    The most beautiful skies as a matter of fact
    The sunsets were purple and red
    And yellow and on fire
    And the clouds would catch the colors everywhere
    That's -- it's neat
    Because I used to look at them all the time
    When I was little
    You don't see that
    You might still see them in the desert
     
  17. findfirefox

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    I SEE!
     
  18. homelessmandril

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    is that song by the Orb or something? haven't heard it in ages and have been meaning to find out about it, it's quite mellow....
     
  19. 36DD

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    :laughing:
     
  20. ManlyBanisters

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    YouTube - the orb - little fluffy clouds

    A personal favourite of mine... Enjoy!
     
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