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TIL That part of the reason that mummies are so rare is because we ate them.

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4Gm6 TIL The man who invented the technology Thermos used to keep liquids hot or cold never patented his invention. Despite the vast commercial success of his invention within his own lifetime, he died having never profited from it at all.
ADbkd TIL foxes are more closely related to walruses than to cats
neKVY TIL a 260-ton "upsetter" mechanical forging machine was sent to the USSR in 1942 as part of war aid. It turned out tank driveshafts and large artillery shells. In 2016 it was purchased, dismantled, and shipped back to Ohio for re-manufacturing.
Oopy6 TIL early versions of the Thompson submachine gun used a "Blish Lock" to hold the action closed. It was based on a theory that two dissimilar metals would resist movement under extreme pressures. The lock had no useful effect on the action and was eliminated in the WW2 redesign of the SMG.
GGbg TIL the “perfect Aryan baby” chosen by Goebbels and widely circulated in mid-1930s Nazi propaganda was later found to be Jewish