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TIL A 240 decibel soundwave is enough to make your head resonate so much that it explodes

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R7Aa6 TIL about Dr. Robert Liston, the fastest surgeon in the 19th century. Start to finish it took him 2 and a half minutes to amputate a leg. In his most famous mishap he took off an assistant's fingers as he cut through a leg. That surgery is the only known surgery with a 300% mortality rate.
0wXmL TIL that an Orca killed a Great White Shark near California’s Farallon Islands in 2000. The smell of the dead shark's carcass caused all nearby great whites to vanish. A great white with a satellite tag in the area was seen to immediately dive to a depth of 500 meters and then swam to Hawaii.
ZDQo TIL that Comcast has ranked lower than the IRS in terms of customer satisfaction
9wdjp TIL that ants belonging to the species Megaponera Analis rescue injured ants during battles
1ae88 TIL that in Europe in the 1700s, high heeled shoes were seen as a sign of upper-class status, and their length was regulated by authorities - ½ inch for commoners, 1 inch for the bourgeois, 1 and ½ inches for knights, 2 inches for nobles, and 2 and ½ inches for princes