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TIL of the Leidenfrost Effect, which creates a protective water barrier around your skin, and allows you to smach molten steel without getting burned

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pYmZ4 TIL they have landed a C-130 on an aircraft carrier without needing a hook to stop it, or to takeoff again, in 1963, multiple times.
oROoW TIL Seeking the secret to immortality, Genghis Khan became familiar with a Taoist sage. The Monk politely suggested that the Khan should try to steer his subjects to be less murderous and asked him to stop hunting, arguing that all life is precious. The Khan agreed...he stopped hunting for 2 months
BrgLd TIL in the 1964 Tokyo Olympics, a central African country entered as Northern Rhodesia and left as Zambia becoming the first country to change its name and flag during the games.
b9blN TIL the biomass of domesticated poultry is about three times higher than that of wild birds.
0dmQy TIL Japan is planning on a future economy using 'clean' hydrogen made from Australian coal.