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submitted 19 hours ago by wuphysics87@lemmy.ml to c/asklemmy@lemmy.ml
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[-] daannii@lemmy.world 2 points 10 hours ago* (last edited 10 hours ago)

Those sheets were polarized film. In case you want to recreate it yourself.

It allows you to see polarized light. Which some animals can see. But humans generally can't.

this post was submitted on 18 Feb 2026
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