Location: I'll be back for breakfast.
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 11-05-2009, 04:46 PM
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SkyCaptain wrote:

underdonk wrote:

Awk wrote:

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Our world is in no tint. Color does not exist, it is perceived by the individual.
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I'm having a really hard time wrapping my head around this statement.
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Color is a fabrication of the human language, based on how our sensory organs have adapted to percieve light stimulus. Photons are either reflected or absorbed by an object. The photons that are reflected are what we percieve as color. Red is just a name we have given a specific wavelength of light. Without light and without an organ to sense light, there is no color. In the absence of light, there is only pure darkness. No photons, no color. It's not even black. Pure and absolute black is technically an absence of photons hitting the retina of our eyes.
A hypothetical creature with no sight organs, but one that has exceptional hearing, may be able to "hear" color, based on ambient sound waves being reflected by or absorbed into the color, the same way we "see" color from photons.
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It's even more abstract than that. We only have three color receptors that respond to specific wavelengths, so the wavlength that excites the one receptor looks red to us, so we call it red, same for blue and green. Everything else is some combination. "Yellow" light has a specific wavelength, but it just excited the red and green receptors partially. If you shoot the right amounts of red and green light into your eye it'll look yellow. (This is how a CRT works, BTW) And then there's something like "brown" where there is no single wavelength of light that will make you see it, it would be a combination of at least red, green, and blue.
TL; DR: How we percieve color has little to do with how light actually works. |
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Last edited by Aioua; 11-05-2009 at 04:48 PM.
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