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15

TIL an Erector set was used to build the precursor to the modern artificial heart

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6ZLX TIL: The world’s oldest known smiley was on a 1635 Slovakian document, indicating the writer’s happiness with the state of the Chamberlain of Trenčín’s financial records.
gr1d4 TIL that airline flight attendants aren't paid until the airplane doors are closed, nor are they covered by insurance or workers' compensation until the doors are closed. (Delta, SkyWest and United have forms of coverage.) This policy discourages them from helping put luggage in overhead bins.
6EwRJ TIL The aircraft manufacturer Northrop Grumman, who built iconic fighter aircraft such as the F6F Hellcat, A-6 Intruder, and the well known and forever popular F-14 Tomcat, won a contract from the US government to mass produce the Grumman LLV, A.K.A. The USPS Postal Truck.
Z8Blp TIL that when Hattie McDaniel became the first black person to win an Academy Award (for her performance in "Gone with the Wind") in 1940, she was seated at a segregated table at the side of the room
bnwQ TIL that a lower IQ as a child correlates to higher chances of obesity as an adult