The sky color has NOTHING to do with CHINESE PEOPLES HAIR!scorchingice_24August 19 2005, 22:50:44 UTC
Here you go, why the sky is blue!!!! And if you read through it all you'll see tha it never ever mentions chinese,but if you dont believe your welcomed to read it. Well damn i've been missing you, and i cant wait to see you tomorrow, yay ima gonna see you!!!!!!! haha lala fla la ga ha ja lalala. Love you **Lick** Blue Sky The blue color of the sky is caused by the scattering of sunlight off the molecules of the atmosphere. This scattering, called Rayleigh scattering, is more effective at short wavelengths (the blue end of the visible spectrum). Therefore the light scattered down to the earth at a large angle with respect to the direction of the sun's light is predominantly in the blue end of the spectrum.
Note that the blue of the sky is more saturated when you look further from the sun. The almost white scattering near the sun can be attributed to Mie scattering, which is not very wavelength dependent.
Measurement of the progression of saturation and brightness
Clouds in contrast to the blue sky appear white to achromatic gray.
The water droplets that make up the cloud are much larger than the molecules of the air and the scattering from them is almost independent of wavelength in the visible range. Index
Scattering concepts
Atmospheric optics concepts HyperPhysics***** Light and Vision R Nave Go Back
Rayleigh Scattering Rayleigh scattering refers to the scattering of light off of the molecules of the air, and can be extended to scattering from particles up to about a tenth of the wavelength of the light. It is Rayleigh scattering off the molecules of the air which gives us the blue sky. Lord Rayleigh calculated the scattered intensity from dipole scatterers much smaller than the wavelength to be:
Rayleigh scattering can be considered to be elastic scattering since the photon energies of the scattered photons is not changed. Scattering in which the scattered photons have either a higher or lower photon energy is called Raman scattering. Usually this kind of scattering involves exciting some vibrational mode of the molecules, giving a lower scattered photon energy, or scattering off an excited vibrational state of a molecule which adds its vibrational energy to the incident photon.
Compare with Mie scattering Index
Scattering concepts
Atmospheric optics concepts HyperPhysics***** Light and Vision R Nave Go Back
Mie Scattering The scattering from molecules and very tiny particles (< 1 /10 wavelength) is predominantly Rayleigh scattering. For particle sizes larger than a wavelength, Mie scattering predominates. This scattering produces a pattern like an antenna lobe, with a sharper and more intense forward lobe for larger particles.
Mie scattering is not strongly wavelength dependent and produces the almost white glare around the sun when a lot of particulate material is present in the air. It also gives us the the white light from mist and fog.
Greenler in his "Rainbows, Haloes and Glories" has some excellent color plates demonstrating Mie scattering and its dramatic absence in the particle-free air of the polar regions.
Compare with Rayleigh scattering Index
Scattering concepts
Atmospheric optics concepts
Meyer-Arendt 2nd Ed., Sec 3.3
Williamson & Cummins Sec 14.4 HyperPhysics***** Light and Vision R Nave Go Back
Rayleigh and Mie Scattering
Mie Scattering Rayleigh Scattering Blue sky
Rayleigh and Mie scattering and sky color.
Possible Mie scattering from fogged eyeglasses Index
Scattering concepts
Atmospheric optics concepts HyperPhysics***** Light and Vision R Nave Go Back
Sky Saturation and Brightness As a qualitative examination of sky brightness and the saturation of the blue sky color, measurements of the color of the sky photograph were made from a computer monitor using Adobe Illustrator's color tools. None of the data should be taken as quantitatively reliable since the original photo had been transformed several times, and the measurements were taken from a non-calibrated computer monitor. Nevertheless, it might be useful as an example of the progressions of sky color.
Re: The sky color has NOTHING to do with CHINESE PEOPLES HAIR!sabby3113August 19 2005, 23:08:35 UTC
i basically said trhe same thing in more simpler terms. I gave an example through black ppls hair cuz its soo dark... its all the same crap! I said it was cuzza the reflection of sunlight
Blue Sky
The blue color of the sky is caused by the scattering of sunlight off the molecules of the atmosphere. This scattering, called Rayleigh scattering, is more effective at short wavelengths (the blue end of the visible spectrum). Therefore the light scattered down to the earth at a large angle with respect to the direction of the sun's light is predominantly in the blue end of the spectrum.
Note that the blue of the sky is more saturated when you look further from the sun. The almost white scattering near the sun can be attributed to Mie scattering, which is not very wavelength dependent.
Measurement of the progression of saturation and brightness
Clouds in contrast to the blue sky appear white to achromatic gray.
The water droplets that make up the cloud are much larger than the molecules of the air and the scattering from them is almost independent of wavelength in the visible range.
Index
Scattering concepts
Atmospheric optics concepts
HyperPhysics***** Light and Vision R Nave
Go Back
Rayleigh Scattering
Rayleigh scattering refers to the scattering of light off of the molecules of the air, and can be extended to scattering from particles up to about a tenth of the wavelength of the light. It is Rayleigh scattering off the molecules of the air which gives us the blue sky. Lord Rayleigh calculated the scattered intensity from dipole scatterers much smaller than the wavelength to be:
Rayleigh scattering can be considered to be elastic scattering since the photon energies of the scattered photons is not changed. Scattering in which the scattered photons have either a higher or lower photon energy is called Raman scattering. Usually this kind of scattering involves exciting some vibrational mode of the molecules, giving a lower scattered photon energy, or scattering off an excited vibrational state of a molecule which adds its vibrational energy to the incident photon.
Compare with Mie scattering
Index
Scattering concepts
Atmospheric optics concepts
HyperPhysics***** Light and Vision R Nave
Go Back
Mie Scattering
The scattering from molecules and very tiny particles (< 1 /10 wavelength) is predominantly Rayleigh scattering. For particle sizes larger than a wavelength, Mie scattering predominates. This scattering produces a pattern like an antenna lobe, with a sharper and more intense forward lobe for larger particles.
Mie scattering is not strongly wavelength dependent and produces the almost white glare around the sun when a lot of particulate material is present in the air. It also gives us the the white light from mist and fog.
Greenler in his "Rainbows, Haloes and Glories" has some excellent color plates demonstrating Mie scattering and its dramatic absence in the particle-free air of the polar regions.
Compare with Rayleigh scattering
Index
Scattering concepts
Atmospheric optics concepts
Meyer-Arendt
2nd Ed., Sec 3.3
Williamson & Cummins
Sec 14.4
HyperPhysics***** Light and Vision R Nave
Go Back
Rayleigh and Mie Scattering
Mie Scattering Rayleigh Scattering Blue sky
Rayleigh and Mie scattering and sky color.
Possible Mie scattering from fogged eyeglasses
Index
Scattering concepts
Atmospheric optics concepts
HyperPhysics***** Light and Vision R Nave
Go Back
Sky Saturation and Brightness
As a qualitative examination of sky brightness and the saturation of the blue sky color, measurements of the color of the sky photograph were made from a computer monitor using Adobe Illustrator's color tools. None of the data should be taken as quantitatively reliable since the original photo had been transformed several times, and the measurements were taken from a non-calibrated computer monitor. Nevertheless, it might be useful as an example of the progressions of sky color.
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