› added 4 years ago

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TIL that a USSR physicist published his equations for solving reflected electromagnetic waves from surfaces, as the Soviet authorities considered them insignificant for military purposes. His work was found by Lockheed in the 1970s, leading to a breakthrough in developing their stealth plane F-117.

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4XrLa TIL: Dalgona coffee is a beverage made by whipping equal proportions of instant coffee, sugar and hot water until it becomes creamy and then adding it to cold or hot milk
O97 TIL that severly overweight passengers on a Southwest Airlines flight must buy multiple tickets if their body mass extends over the armrests
4kKlo TIL "What We Do in the Shadows" had an enormous behind-the-scene joke, with the IT guy Stu - who's played by a real IT guy called Stu- was told he's needed for IT purposes on set, with his role in the script being kept secret from the entire cast and him repeatedly told everyday to film a bit more.
6xGJ TIL of Terry Jo Dupperrault who in 1961 at 11 yrs old survived 4 days at sea on a cork float after the boat she was on sank. The boats captain murdered everyone aboard including her parents and siblings. Police thought the soul survivor was the boats captain.
QJmvp TIL Popeye cartoons were ad-libbed after the animation was finished, giving the characters their "under-the-bearth" mutterings