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177

TIL during a Space Shuttle launch abort in 1984, leaking hydrogen was causing a fire invisible to human eyes. If the astronauts had evacuated according to the emergency procedure, they would have been incinerated by it.

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j7en TIL Hiroshima is one of the only places outside of the United States to observe Martin Luther King Day because he wrote a letter to Japan weeks before his death, requesting to visit the county and spread his message of peace.
jN78j TIL the "drying" of oil paint is not due to evaporation of water or other solvents, but instead to atmospheric oxygen forming crosslinks between oil molecules, polymerizing them into a solid.
yj0e TIL - If you wanted to buy a single rare Dutch tulip bulb in 1636, all it would cost you is: 2 lasts of wheat, 4 lasts of rye, 4 fat oxen, 8 fat swine, 12 fat sheep, 2 hogheads of wine, 4 turns of beer, 2 tons of butter, 1000lbs of cheese, a complete bed, a suit of clothes, & a silver drinking cup.
Y7Byv TIL Whale milk has the consistency of toothpaste.
DQVlV TIL that Napoleon Bonaparte was once attacked by a horde of bunnies. In 1807, during a hunt, his chief of staff released thousands of rabbits for the hunt, but the rabbits instead charged at Napoleon and his party, overwhelming them.