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TIL IBM made a movie by moving atoms and recording them with an electron microscope.

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rR4bo TIL of the “Great Sparrow Campaign” (打麻雀运动), during which Mao Zedong ordered the Chinese people to kill all sparrows, because they were eating farmers’ seeds. With the sparrows dead, the insect population exploded, and locusts devastated the rice fields.
G9J1 TIL killer whales know that great white sharks need to move to breath, and will hold them upside down in order to kill them.
16x74 TIL A traditional marriage custom in Congo forbids the bride and the groom from smiling during their entire wedding day.
OJG1 TIL nowhere in the Bible does it say that Mary Magdalene was a prostitute or even overtly sexual.
yVyKv TIL that England expelled all Jews via decree in 1290 and just recently apologized.