this post was submitted on 29 May 2025
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"Where are you?" (lemmy.world)
submitted 1 week ago by The_Picard_Maneuver@lemmy.world to c/whitepeopletwitter@sh.itjust.works
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[–] Aeao@lemmy.world 101 points 1 week ago* (last edited 1 week ago) (24 children)

I read this once before and it's one of those facts I find endlessly fascinating. It's simple and obvious why it wasn't normal before recent times...

It just scratches my nerd fact itch I guess.

It's right up there with

  • social security numbers were promised to never be used as essentially your "human number" for things and would only be used for ss benefits

And

  • minimum wage WAS designed and WAS intended to be a livable wage. It very specifically was proposed and made law with the point being it's the lowest wage which a person can support themselves. People saying "minimum wage isn't supposed to be livable wage!" Are wrong.

Oh and

-we see the color that is not absorbed by an object. So essentially we see every color the object ISNT.

[–] glimse@lemmy.world 39 points 1 week ago (15 children)

Not to be too pedantic but that last one isn't quite correct. Color "happens" after the object is hit with light - it's defined by our perception of the wavelengths that bounce off.

Which I suppose raises the question... Is a blue box still blue in total darkness? Is its color defined by the light its reflecting or it's capacity to reflect? I think the latter but I don't really know

[–] Redjard@lemmy.dbzer0.com 1 points 1 week ago (1 children)

Plants are green, so which colors are used by the plant for photosynthesis?

[–] TheSaus@lemmy.dbzer0.com 1 points 1 week ago

Grow lights are purple for that exact reason iirc, not to say you can’t get/use white ones

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