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TIL sharks existed before trees

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gMmOW TIL that the quality of a woman’s voice fluctuates through the course of her menstrual cycle with the “best voice” (higher pitch) during the ovulatory phase & “worst” during the premenstrual phase which is referred to as “premenstrual voice syndrome.”
9YJGQ TIL despite the Romans using lead water pipes, lead poisoning from the water supply system was almost nonexistent since the high calcium content in their water created a layer of plaque preventing the water contacting the lead itself.
BrPLx TIL that the movie Serpico was filmed in reverse, and Al Pacino had to be shaved as the shooting progressed. Pacino started with long beard and hair. He was shaved to a mustache, and then eventually his hair was cut, and he was clean-shaven for the beginning of the film.
0dbBM TIL the 1944 Nobel Prize went to male German physicist Otto Hahn solo for the discovery of nuclear fission, despite the fact he had done the work in collaboration with Lise Meitner, a German Jewish woman forced into exile who had in fact even been the first to use the term 'fission' and explain it
wL708 TIL that the 2007 Toyota Tundra had a problem where the accelerator would stick and the vehicle would not stop until it hit something.