You see the light reflecting from paint doesn’t actually become blue, it loses yellow
so if i put spectrophotometer, it won’t show spike at 460 nm?
well, yes, it would
fucking nerds
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!
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!
when I’m at a pedantic nerd competition and my opponent pulls out a spectrophotometer
You came at me talking about objective facts without scientific instruments? Think better, kiddo
a UV-vis spectrum of the pigment in their feathers should look like this and the observed light is from scattering instead of absorption processes. god fuck please wedgie me
yeah, but instead feathers look like this, also known as “really blue”
pedantic shit but since im shrivelling into a corn cob: reflectance spectroscopy on a bulk structure that reflects blue shows that it indeed reflects blue, not that the material comprising the structure itself transmits blue as with pigments
