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TIL One reason the Lockheed F-117 and the HB1001 look like retro low-poly computer models is because they literally are. In 1974 when Denys Overholser leveraged 60s Soviet algorithms to calculate radar reflection, computers weren't powerful enough to reliably perform this function on curved surfaces

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VMLJ8 TIL that Mister Rogers once used an egg timer and simply let it run for sixty seconds on a television broadcast—in order to demonstrate how long a minute is. Unlike most TV made for kids, "Mister Rogers’ Neighborhood" was deliberately slow and contemplative.
v1ZE4 TIL that people can die from simply giving up on life. Senior research John Leach said “give-up-itis” can kill in just three weeks without help.
JMxQ TIL that Black Bears eat pine needles and hair to get stuck in their system on purpose. It forms up to a 1 foot long anal plug that holds the food in them all winter, then they crap it out in the Spring.
e04BE TIL of the song “prisencolinensinainciusol”. It topped the Italian charts in the 70s, despite the lyrics being absolute nonsensical gibberish. It was meant to illustrate what American English sounds like to non-English speakers.
xJVk TIL that Jeff Goldblum performs in a jazz show in Los Angeles almost every week. As part of the live performance, he plays piano and improvises lyrics to the theme music of “Jurassic Park.”