• EmmaGoldman [she/her, comrade/them]@hexbear.netM
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    10 months ago

    This isn’t that pedantic paint shit. The tweet did a bad job of explaining

    Blue Jays are blue because of structural coloration rather than pigmentation, like how peacock tails or butterfly wings work. While the actual pigmentation on a Blue Jay’s wings is brown, the light bending caused by the tiny structures within their feathers makes them blue. Pretty neat!

    • plinky [he/him]@hexbear.net
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      10 months ago

      The end result is still the same, the neat interference aside, they are “really blue”. The starting point of the tweet they are not and it is nerd shit.

      The neat interference can be brought up by like comparisons to: gas spills on water, butterflies, tempered steel, dslr lenses, *opals!

    • rando895@lemmygrad.ml
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      10 months ago

      It’s light scattering rather than “bending”, which is not bending but rather refraction due to the differences of the speed of light within the feathers compared to outside the feathers in the air.