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TIL human sweat is “the most extreme and distinctively human evolutionary trait as a whole”

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ydKl TIL, that Charles Darwin was laid to rest in Westminster abbey. The highest honor the church could offer.
rRbdw TIL that, in order to make their 1958 doc “White Wilderness” more riveting, Disney filmed lemmings running around to give the impression that they were “migrating,” before throwing them into a river to drown. Disney then pieced together this footage, and thus the myth of lemming suicides was born.
P1JDw TIL When racing, F1 cars generate so much negative pressure as the vehicle moves, that manhole covers which are not secured can be lifted from the ground.
6Egal TIL the battlecruiser SMS Seydlitz sank three times. The third time was because the guy in charge wasn't there when it was raised, so he made them re-sink it so he could get the photo-op.
oBrBE TIL one of the reasons the Chinese never fully developed gunpowder weaponry was because their walls could sustain artillery bombardments. Even 20th century artillery guns had trouble piercing their walls.