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TIL Inside Abraham Lincoln’s pocket watch is a long-hidden message

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ADgoa TIL that Grace Slick, the lead singer of psychedelic rock group Jefferson Airplane, planned to spike President Richard Nixon's tea with 600 micrograms of LSD after being invited to a tea party at the White House
JYbbl TIL frozen helium is a solid that behaves like a superfluid
rPGx TIL that a South Korean scientist has cloned 600 pet dogs for grieving owners. At $100,000 a pup. I mean pop.
YpWyr TIL that the word "amethyst" means "not drunk" because of an Ancient Greek belief that drinking from an amethyst cup would prevent intoxication.
VMd8p TIL a gang of brilliant French thieves used a vacuum cleaner to steal $800K from a bunch of grocery stores. The stores used a pneumatic tube system to convey their cash payments to their safes. They broke in and used the vacuum cleaner to suck the money out of the store vaults.