› added 4 months ago

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TIL that a sitting individual generates roughly one million dust particles per minute

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VMX48 TIL that humans are the only mammals with a very distinct and visible iris and pupil in contrast with the rest of the eye (sclera) which is white, probably because we evolved as more cooperative animals so following another person's gaze became important in communications.
lMga TIL “Aluminum” started as a misspelling of “Aluminium” on a handbill by Charles Martin Hall, the American Industrialist who made Aluminum production practical
JYgpm TIL the world has more than 50,000 edible plants, yet just three commodity crops—rice, maize, and wheat—provide 60 percent of the plant-derived calories we eat
xVAv7 TIL that some of the retired Concordes have a pilot's hat permanently trapped in the cockpit, inserted during the final flight into a gap that opened up at high speed, but closed again as the fuselage cooled.
KOkvB TIL the brutal ruler Vlad the Impaler saved thousands of lives, on multiple occasions. He prevented huge battles by challenging the enemy general to a one-on-one duel to the death.