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TIL a New York Jets fan was once killed by a drone shaped like a lawnmower

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PDyJ TIL Sunscreen SPF is a very nonlinear metric. An SPF of 15 blocks 93% of incoming radiation, SPF 30 blocks 97%. SPF 50 blocks only 1% more than SPF 30, at 98%.
9Y6DX TIL before police used fingerprints to identify individuals, they used a system called Bertillonage which used several measurements of different body parts. It lost popularity when Leavenworth prison had two inmates with the same name, measurements, and physical appearance.
eYBn TIL a crow succeeded in a cognitive test that stumped most 4-5 year old children, indicating their intelligence may even outshine that of apes
a8xWo TIL actress Mary Martin, known for her roles in film and on stage in Peter Pan and The Sound of Music, was the mother of actor Larry Hagman, famous as Dallas's J.R. Ewing and in I Dream of Jeannie
X0Xnk TIL about New Zealand author Janet Frame was erroneously diagnosed with schizophrenia and scheduled for lobotomy. However, several days prior to the procedure, she was awarded New Zealand's most esteemed literary accolade, prompting doctors to cancel the operation.