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"
-
Show this thread
-
"If I were to take your iris apart with a pair of tweezers, I would find only a series of completely colorless, transparent membranes" "Uh" "And if I were to put them in a blender and grind it up, there would not be a single particle of usable blue pigment" "Wait"
2 replies 6 retweets 106 likesShow this thread -
"That means the color in your eyes can't ever be extracted It's only a result of your eyes being assembled just as they are now" "Okay that's better" "And it's the reason the color can change so dramatically in different lighting, from green to blue to gray" "That's nice"
2 replies 3 retweets 70 likesShow this thread -
"It's because blue eyes are a specific mutation that fails to produce melanin in the outer mebranes of the iris but not the inner If your iris were completely transparent, like in true albinism, it would reveal the blood vessels in the inner eye and be red or pink" "Wait no"
1 reply 4 retweets 74 likesShow this thread -
"This is why blue eyes are very rare in other mammals and associated with specific genetic diseases, like how blue-eyed cats are usually also deaf It's why white people are more prone to age-related macular degeneration and the need for reading glasses" "Oh come on now"
6 replies 5 retweets 83 likesShow this thread -
Replying to @arthur_affect
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.
2 replies 1 retweet 16 likes -
Replying to @RealBarabbas
And in fact our Sun is one of them! The actual color of the Sun is white, by definition - what our eyes evolved to see as "white" is the color of unaltered sunlight!
1 reply 2 retweets 15 likes -
Replying to @arthur_affect @RealBarabbas
People talk about the "Yellow Sun Paradox" You can take a picture of the Sun overhead at noon and see that it's white, but everyone thinks of it as yellow Because it's always against a blue backdrop, and as it gets lower in the sky (and easier to look at) it gets yellower
4 replies 2 retweets 19 likes
And yet photographers and filmmakers know that the period of time in which sunlight is actually visibly tinted yellow is very brief and precious (the "Golden Hour") and "real" sunlight at high noon is just as harsh and blue-tinted by comparison as ugly fluorescent lights
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.