› added 9 months ago

54

TIL Water doesn't always boil at 100 degrees

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ZpZkD TIL English villagers were captured by pirates and sold as slaves in North Africa
69Pm7 TIL of the 1862 Nueces Massacre in Texas, when 96 Confederate soldiers killed 37 German-Texan Unionists who were attempting to flee to Mexico, and slaughtering 9 Germans who were badly wounded in the fight, marking the end to overt German Unionist resistance in Texas for the remainder of the war.
9YreQ TIL of Tetris syndrome, which happens when you play a game too long and start to dream and hallucinate about it.
gMGaW Today I learned upside-down rainbows exist; they are named circumzenithal arcs and are considered halos. Arcs are caused by the refraction of sunlight through ice crystals, generally in cirrus or cirrosts clouds, rather than from raindrops like regular rainbows.
XE0dX TIL That to calculate the position of the Voyager 1 spacecraft some 12.5 billion miles away, you only need to use the first 15 digits of the value of Pi to be accurate within 1.5 inches