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TIL: Einstein designed an unworkable wing airfoil based on a flawed knowledge of how wings work

Read more einsteinpapers.press.princeton.edu

via reddit.com

pm6e TIL the Gravity Probe B has the smoothest sphere ever made. If the GP-B gyroscope was enlarged to the size of Earth, the tallest mountain would be only 8 feet high.
OoQd7 TIL the 1st season of the kids show Courage the Cowardly Dog ended with the main character (Courage) becoming a puppeteer for his owners (the two main protagonists)'s lifeless bodies after they were turned into marionettes. He goes mentally insane from living alone after a while.
pY6Ge TIL that the phrase "running the gauntlet" comes from the Swedish word "gatlopp" and comes from a punishment in which the party judged guilty is forced to run between two rows of soldiers, who strike out and attack them with sticks or other weapons.
lo44V TIL that tsetse flies, which carry the parasite responsible for African Sleeping Sickness, give live birth and lactate to provide milk for their young.
x6Mn5 TIL that there's an all women team competing in endurance racing, complete with an all woman crew. They race in the LMGTE/GT3 category and once won in their category in 2023, at a race in Bahrain.