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TIL there are more black men in the prison system today than slaves in 1850

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p8Vo4 TIL: the deep ocean is heterogenous and made up of discrete water masses, which can be tracked, measured, and dated; some water masses are up to 1,500 years old!
yVWjw TIL about Project Plowshare, a US program for the development of techniques to use nuclear explosives for peaceful construction purposes. Proposed uses included widening the Panama Canal, excavate a roadcut in the Mojave Desert for the construction of I-40, and create an artificial harbor in Alaska
wOmJ TIL that “Bruce”, the shark created for the movie Jaws, almost killed George Lucas. On a visit to the effects shop Lucas stuck his head into the shark’s mouth and, as a joke, Spielberg closed it on his head, trapping him. The mouth was jammed shut and had to be pried open in order to free Lucas.
dnnK TIL the 4 of july, 1946 was the Independence day from the United States of America for the Philippines.
yQrRl TIL that in 1973 Johnny Carson caused a run on toilet paper after delivering this 12/19/73 monologue.