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TIL that elevators in the United States are required to be large enough to fit an ambulance stretcher.

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wn86 TIL there is a rare disorder where a woman bleeds through her eyes during menstrual periods.
QJZ8a TIL that Photorhabdus is a strain of bacteria that lives inside nematodes. It works in symbiosis to kill host insects that nematodes target within 48 hours then produce antibiotics to disinfect the carcass.
LklMv TIL Carl McCunn was flown to the Alaska wilderness to take photos of wildlife. The pilot never returned for him. His friends had a pilot fly out but Carl accidentally gave the signal for “all okay.” He survived for 8 months before killing himself instead of freeze or starve.
9odm TIL physicist Bernard Waldman witnessed the bombing of Hiroshima, as a camera operator on the observation aircraft. He was equipped with a special high-speed movie camera with six seconds of film to record the blast. Unfortunately, Waldman forgot to open the camera shutter, and no film was exposed.
wo5W8 TIL: That The U.S. Department of Energy has set the maximum shelf life for gasoline at six months when stored properly. With that said, most experts agree that as long as fuel is kept fresh and free of contaminants, it can last up to three years.