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TIL it’s estimated that about 85 percent of hospitals still rely on pagers for communication.

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R57Ja TIL the RAF and USAAF dropped 3,316,000 magnesium incendiary bombs on Munich alone during WWII, 4 bombs for every inhabitant.
xykD TIL The Eiffel Tower leans very slightly in bright sunlight, as one side is heated by the sun and expands slightly
Wrl8 TIL American coinage was made using definite measurements. 16 pennies stacked equals 1 inch and 16 pennies in a line equals 1 foot.
1aOjP TIL in 2007 after Johnny Depp's daughter recovered from a serious E. Coli infection, Depp dressed up as Captain Jack Sparrow to spend 4 hours in the hospital reading stories to sick children, and donated £1 million to that hospital.
loJ9N TIL In 2013, a scientist injected human brain cells into a mouse brain, which improved the mouse's memory and ability to learn.