› added 10 years ago

71

TIL there are still 5 people living who were born in the 1800s.

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xVEKw TIL about the Thach Weave, a dogfighting maneuver developed in WW2 by the pilot John Thach. It allowed slower American planes to defeat their faster, more agile Japanese adversaries. It is still applicable today.
W7dKY TIL that there's a form of synesthesia where people transcribe the speech of others into text as imaginary subtitles
BgJQr TIL 65% of the population of the world is lactose intolerant.
8nvL TIL wet hay or grass can spontaneously combust when left in piles
kJv6e TIL in the 1800s, before refrigeration, ice used to be imported from countries that could harvest it from natural sources