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What makes the sky blue?

Jack's Pearl 2011/10/05 13:58:19
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  • Predators Eyez 2011/10/07 15:05:15
    This...
    Predators Eyez
    +2
    I think it has something to do with water and light reflection. I'm not positive on this though. For a more in depth answer, I would ask Bill Nye the science guy. bill nye the science guy
  • Just MEH....Piwan 2011/10/07 15:03:22
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    Just MEH....Piwan
    +2
    Oxygen and layers of ozone, and when the sun is on it it appears blue!
  • Little Miss Monster 2011/10/07 13:32:26
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    Little Miss Monster
    +2
    The angle of the sun relative to our position. When the sun shines at a longer angle (at sunrise/sunset the angle is shorter) blue photons scatter much more easily so the sky appears blue; when the sun shines at a shorter angle, red photons scatter much more easily and the sky appears reddish.
  • RobJohn 2011/10/07 11:56:07
    This...
    RobJohn
    +2
    the sky is blue because all other colors of the white light spectrum are filtered by the atmosphere. The sky turns red in the late evening because the path through the atmosphere is longer and thus only the longer red makes it through unfiltered
  • ELLIE 2011/10/07 11:49:42
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    ELLIE
    +2
    It is a visual phenoma.Water particals hit the light and appear blue ,just like water does.
  • Earthly Resident 2011/10/06 14:57:35
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    Earthly Resident
    +2
    sunlight interacting with the earth's atmosphere makes the sky blue. In outer space the astronauts see blackness because outer space has no atmosphere,
    sunlight consists of light waves of varying wavelengths, each of which is seen as a different color

    the minute particles of matter and molecules of air in the atmosphere intercept and scatter the white light of the sun, a larger portion of the blue color in white light is scattered, more so than any other color because the blue wavelengths are the shortest
  • Helmholtz 2011/10/06 10:38:21
    That...
    Helmholtz
    +2
    My guess is the Devil
    water boy gif
  • Jack's ... Helmholtz 2011/10/06 12:12:38
    Jack's Pearl
    +2
    I think the sky would be black and red then. LOL
  • mewycg 2011/10/06 03:04:52
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    mewycg
    +2
    Zeus paints it anew each day.
  • dlsofsetx 2011/10/05 23:13:07
    That...
    dlsofsetx
    +2
    Check out BrookeCessa's answer.
  • Vision of Verve 2011/10/05 22:35:36
  • Pamu 2011/10/05 18:35:34
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    Pamu
    +2
    Rayleigh scattering causes the sky during day time to blue shade otherwise the sky is pitch dark only!The Sun's rays are passing through the atmospheric air molecule to get more dispersed on towards the blue color wavelength as a result the sky shows blue color.
  • ☠Marz555☠ 2011/10/05 17:02:40
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    ☠Marz555☠
    +2
    Because, Jesus' eyes were blue.

    At least that's what the christian science textbooks claims.
  • Ego Death ☠Marz555☠ 2011/10/07 11:03:30
    Ego Death
    +2
    Jesus must have been magic or something.
  • Icarus 2011/10/05 17:02:16
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    Icarus
    +2
    Rayleigh scattering:

    A prism bends light which passes through it, but it bends different wavelengths by different amounts, which is why you get a spectrum - the light gets spread out because the different wavelengths are affected differently.

    A similar principle explains why the sky is blue - molecules in the air tend to scatter light more at the blue end of the spectrum than the red end, so red light from the sun tends to pass in straighter lines through the atmosphere and blue light tends to get scattered more and comes down to our eyes - we look up and we see more blue light than other wavelengths, hence the sky looks blue. This also explains why, during sunset and sunrise, we see more oranges and reds - because they are coming straight at us through the thickness of the atmosphere, whereas the blue light is being scattered more before it gets to our eyes (and someone else further round the Earth is seeing more of that blue light, and hence sees a bluer sky).
  • 2226693 2011/10/05 16:29:29
  • Ego Death 2226693 2011/10/07 11:01:07
    Ego Death
    +3
    raleigh NC
    A step up from Raleigh NC
  • Keith 2011/10/05 16:21:59
    This...
    Keith
    +2
    Because god loves the infantry!!!
  • Stacie's Mirage 2011/10/05 16:09:59
    This...
    Stacie's Mirage
    +2
    It's not a matter of what, it's a matter of who. God
  • Bomb a 2011/10/05 16:07:51
    This...
    Bomb a
    +4
    Blue food coloring, lots of blue food coloring
  • Tony 2011/10/05 15:45:50
    I don't know?
    Tony
    +3
    IT'S NOT! IT'S GREEN! ADJUST YOUR TV! xD
  • Angel 2011/10/05 15:44:40
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    Angel
    +2
    Light bouncing off the water makes it look blue (or was it the other way around, I always forget)
  • RosaG 2011/10/05 15:21:50
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    RosaG
    +3
    Because blue light 'bounces off' the atmosphere and is scattered in all directions, while the other colours that the white light of the sun is composed of travel to the surface of the Earth unimpeded.
  • Ego Death RosaG 2011/10/07 10:58:29
    Ego Death
    +3
    Except for the odd day time shade...

  • carsten.braatz 2011/10/05 15:04:57
    This...
    carsten.braatz
    +2
    Why is SodaHead asking stupid questions? Don't you have any proper topics?
  • Jack's ... carsten... 2011/10/05 15:11:38
    Jack's Pearl
    +1
    This one is actually very interesting if you bothered to read the other posts. Some know why it's blue.
  • K-ZOOMI... Jack's ... 2011/10/06 21:07:09
    K-ZOOMI-----0
    +1
    Like "why Do I Itch After My Date With The Blonde Waitress?"
    HAHAHAHAHAHA!
  • LittleMistersMom 2011/10/05 14:54:19
    That...
    LittleMistersMom
    +3
    I"m not sure if this is the exact science, but I remember something from my schooling, possibly.... Different colors of light have different wave lengths, and blue is the shortest. It refracts more in the atmosphere than the other colors.
  • Jimbo 2011/10/05 14:43:46
    This...
    Jimbo
    +2
    The light reflected off the atmosphere is blue colored.
  • Cinderella 2011/10/05 14:40:50
    This...
    Cinderella
  • MandaLynne 2011/10/05 14:35:36
    This...
    MandaLynne
    +3
    What? You haven't seen the commercial? LOL
  • Jack's ... MandaLynne 2011/10/05 14:41:17
  • MandaLynne Jack's ... 2011/10/05 14:51:36
    MandaLynne
    +3
    It's that commercial by Girl Scouts of the USA and the Ad Council to tell the public about the importance of developing math, science, and technology skills in girls.

    In it a young girl and her father discuss why the sky is blue. When Dad suggests Nature wanted to match her pretty eyes, his daughter promptly corrects him: The sky is blue, she says, because colors have wavelengths diffused by oxygen and nitrogen, and as the shortest wavelength, blue is diffused up to 10 times more than other colors. She then reveals that she learned this from her mother.
  • Jack's ... MandaLynne 2011/10/05 14:54:22
    Jack's Pearl
    +2
    That's awesome! LOL
  • synful90 2011/10/05 14:31:37 (edited)
    I don't know?
    synful90
    +2
    i don't know the sky is rarely blue in wisconsin lol
  • K-ZOOMI-----0 2011/10/05 14:19:44
    I don't know?
    K-ZOOMI-----0
    +5
    Have no idea. This is Michigan. What is a sky without clouds???
    HAHAHA

    michigan winter clouds
  • LB 2011/10/05 14:07:32
    This...
    LB
    +2
    Something about the ROYGBIV thing shining through the atmosphere. The molecules in the atmosphere separate the light spectrum and shines the blue light down our way? Something like that. School was so LONG ago.
  • Jack's ... LB 2011/10/05 14:17:20
    Jack's Pearl
    +2
    I guess that's refraction? :)
  • LB Jack's ... 2011/10/05 14:32:30
    LB
    +2
    Yeah. REFRACTION! I knew it had something to do with math. Har, get it, fractions?
  • Clyde 2011/10/05 14:06:46
    This...
    Clyde
    +2
    The same thing that makes the ocean seem blue. The water or the atmosphere absorbs or reflects the other spectrums of light more than blue.

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2014/10/01 18:21:52

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