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Dumbass kkkanadian$$ don't know how light works. (hexbear.net)

submitted 10 months ago by Posadas@hexbear.net to c/chapotraphouse@hexbear.net

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[-] plinky@hexbear.net 59 points 10 months ago* (last edited 10 months ago)

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

[-] EmmaGoldman@hexbear.net 67 points 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@hexbear.net 35 points 10 months ago* (last edited 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!

[-] EmmaGoldman@hexbear.net 27 points 10 months ago

Yeah bad tweet for sure, I just think structural colour is very cool.

[-] plinky@hexbear.net 23 points 10 months ago

Blue jays aren't blue orly

Blue jays are like opals owl-wink

[-] Sephitard9001@hexbear.net 2 points 10 months ago

Adam Sandler peering at a Blue Jay with a magnifying glass

"Holy shit I'm gonna cum"

[-] rando895@lemmygrad.ml 13 points 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.