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TIL the reason rubbing alcohol burns when you put it on cuts is because exposed nerve cells in the cut that normally detect hot temperatures have their pain threshold lowered by alcohol - which causes our body temperature to cause a burning sensation.

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16aAd TIL about the Society of Mutual Autopsy, established on 1876 by French anthropologists, whose rule was that each member had, on his death, to deliver his body (especially the brain) to the group for autopsy
lAp7 TIL “No kill shelters” need to achieve a >90% rate of live adoptions, and may still kill healthy animals as a matter of course.
5GXB TIL that in 2001, Ed Toutant lost “Who Wants to Be a Millionaire” due to an error in a question. When this was discovered, he was invited back on and ended up winning $1.86 million.
kJAZ7 TIL that the Yugoslav version of NORAD is abandoned in Croatia
VMR94 TIL in 2007, Russia used a mini-submarine to plant the country's flag on the floor of the Arctic Ocean in an attempt to claim the region and its natural resources, a move that was rejected by the U.N.