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We know diamonds are the hardest, but determining the softest stuff on the planet is complicated.

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ZnYD TIL Serial killer Ted Bundy once worked at a Suicide Hotline Crisis Center and was described by co-workers as being kind, solicitous and empathetic.
WdY8 TIL that in 1999, a woman survived a 14,500 foot fall after her parachute didn’t deploy while skydiving. She landed on a mound of fire ants and was stung several hundred times, giving her an adrenaline rush to keep her heart beating.
aWGo TIL Rick James and his wife kidnapped a 24-year-old girl as a sex slave and torture puppet in 1993
8eapa TIL cry rooms were an amenity movie theaters had starting in the 1940s. These were small areas at the back of a theater where those with unruly kids could continue to watch the film. The presence of these rooms declined greatly by the 1970s due to the rise of multiplex theaters.
x4ow TIL when their child was diagnosed with xeroderma pigmentosa, a condition in which exposure to sunlight causes third degree burns and cancer, a New York couple founded Camp Sundown, a summer camp for kids with xeroderma pigmentosa where all normal camp activities are held after sundown.