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TIL the Soviet Union had a functioning prototype laser pistol.

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epMPn TIL that the number of 100,000 km for the length of human blood vessels used some VERY generous assumptions, and that it is actually around 9,000 to 19,000 km.
BM4D TIL the longest running science experiment in the world is in Australia, where they have been watching asphalt slowly drip through a funnel since 1927
rR5ed TIL that Pablo Escobar was making $2,500,000 an hour during the late 80’s and early 90’s. He made so much money that he would buy commercial airliners, fill them with cocaine and once they landed, abandon the plane and buy a new one for the next shipment.
aryy TIL that a killer whale at the Miami Seaquarium named Hugo, committed suicide by repeatedly bashing his head into the walls of his tank.
L0Lv TIL only 2% of the worlds population is blonde.