› added 4 years ago

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TIL When you open your eyes in a perfectly dark room you don't see black, but "Eigengrau", a shade of gray that arises from visual noise

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nXd TIL that humans can reliably identify, by smell, blood relatives - but not husbands or wives. Preadolescent children can detect their full siblings but not half-siblings or step-siblings.
7r6GX TIL in 2019 the wealth per adult in North America was $417,694.
yAev TIL: That Gas Prices in Venezuela haven’t changed since 1996 at $0.015 per Liter
kO474 TIL that logo of the popular Japanese rock band, Greeeen is of a mouthful of teeth because the members are actual dentists irl. They have never shown their faces in the public and their identities are still unknown to protect their dentistry careers.
DQgKj TIL the substance that forms the outer shell of plant spores & pollen, Sporopollenin, is one of the thoughest, most stable biopolymers in the world. It's so resistant that it can't be studied using normal enzymes or chemical reagents, and it can stay intact in sediment for +500 million years.