Been thinking about telling someone with blue eyes about the concept of "structural coloration" "The color of your eyes is fascinating because it's the result of the scattering of pure white light Your eyes are blue the same way the sky is blue, or the sea" "Aww"
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"Producing blue color through true pigmentation at the molecular level would be a superior solution, it's just that there aren't any convenient bright blue compounds living things can synthesize that wouldn't be toxic in even small amounts" "I'm going home"
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Oh, I know that; it's also why we're generally more photosensitive -- to our detriment. Blue eyes are pretty, but they do a very bad job at regulating light levels.
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Thought while there's no blue pigment, I do maintain that eyes are "really" blue, just like the sky is really blue. There's lots of reasons things look the color they do. Rayleigh scattering is a perfectly cromulent reason for it.
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Don't forget we're also more likely to get cataracts and ocular melanoma.
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This reminds me of in Physical Science class in Jr high I asked the teacher why there were no green stars on the Stellar spectrum & he pointed out that green is the central visible wavelength so the White stars were "green" insofar as their spectrum was evenly balanced.
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The reason that there are no green stars is because early mammals were nocturnal.
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I didn't need glasses until I was 34, that's a decent run
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I mean... yeah. I have pale gray eyes and I'm very light sensitive.
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