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TIL Faulty coffee machines are one of the most common causes of flight delays.

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VBRaB TIL there’s a term for the feeling of the pressure you feel in your ears when driving fast and only have rear windows down: The Helmholtz Resonance.
WkQR9 TIL John F. Kennedy’s Eternal Flame has only ever gone out twice since 1963. The first time was less than a month after it had been lit when a child accidentally extinguished it with holy water. Luckily one of the grave workers was a smoker and had a lighter on hand to relight it.
YQEv TIL the peregrine falcon is the fastest animal in the world, capable of reaching speeds in excess of 240 mph.
R7909 TIL Lawn darts are also banned in the USA in 1988 as they sent 6,000 people (81% were 15 or younger) to the ER in eight years. In Canada, lawn darts resulted in at least 55 serious injuries, so they were banned for sale in July 1989. The sale of second-hand lawn darts is also illegal.
OGGEg TIL the FAA’s Aviation Safety Program (ASP) was so successful in educating pilots on aviation safety that it led to its own demise, as the easiest-to-fix accident causes were all addressed