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TIL Japan uses a 30 hour clock for TV schedules and bars to signify events occurring past midnight. e.g. 30:00 = 6AM.

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OoEAa TIL the Lockheed SR-71 Blackbird set the world record for the fastest air-breathing manned aircraft in 1976 at 3,529 km/h (2,193 mph), a record which still hasn't been broken in 44 years
VM8AQ TIL the sex of alligator hatchlings is based purely on temperature while incubating. At 86F or lower, the babies will all be female; at 93F or higher, they will all be male. The mother can sense these changes in temperature and will alter the nest to maintain an optimum temperature.
LQedV TIL A classic thought experiment in probability theory suggests that if you have a million monkeys typing away on a million typewriters (or even just a few), given enough time, they will randomly produce the complete works of Shakespeare (or Dickens, or even the entire British Library).
dDxx8 TIL Dunbar's research suggests that humans can comfortably maintain approximately 150meaningful relationships. These relationships can range from close family and friends to more distant acquaintances. Beyond the number, it becomes increasingly challenging to remember and maintain social connections
RbVQ TIL that Nehru rejected permanent membership for India on the UN Security Council to keep India out of Cold War politics