this post was submitted on 11 Oct 2024
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Science Memes

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Halloween Botany (mander.xyz)
submitted 1 month ago by [email protected] to c/[email protected]
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[–] [email protected] 3 points 1 month ago* (last edited 1 month ago) (1 children)

Your definition of color is based only on human perception? Is purple a color for a mantis shrimp?

Edit: I guess not in a pure sense because it's still two wavelengths of light. Perhaps a mantis shrimp can detect a totally different wavelength and sees it as "purple" or something.

Now I'm thinking about how we don't know how other humans interpret colors. Like what I see as red, you may see as blue. Ugh.

[–] [email protected] 1 points 1 month ago (1 children)

Definition I'm using is any color that can be expressed as a single wavelength of light. Purple cannot be, since it's actually two wavelengths simultaneously.

[–] [email protected] 2 points 1 month ago

Perceiving it as a color seems more practical though. It's not like we look at "red" and think "ah yes, a single wavelength of light"