plinky comments on Dumbass kkkanadian$$ don't know how light works.

[–] plinky@hexbear.net 12 points 2 years ago* (8 children)

yeah, but instead feathers look like this, also known as "really blue"

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[–] hexachrome@hexbear.net 16 points 2 years ago (7 children)

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

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[–] plinky@hexbear.net 15 points 2 years ago (6 children)

rage-cry <- this is me rn.

Pigments (typically used in non transparent dyes) don't transmit, they subtract parts of white light, and reflect what we call their color. Indigo does exact same shit - indeed reflect blue(tm).

its not "an optical illusion"

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[–] hexachrome@hexbear.net 12 points 2 years ago (3 children)

shit fair shout had internal transmittance and absorption mixed up. and yeah it's not an optical illusion, it's still reflecting blue light, just not as a direct result of electronic effects

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