› added 8 years ago

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TIL Astronaut’s eyeballs are often dented in from behind. Some astronauts who had perfect eyesight on Earth suddenly need glasses in space.

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98DM TIL that the flashes of color you see in your eye after you rub them are called phosphenes.
mxdwE TIL Flo-Jo's world record in the 200 meters from 1988 somehow still stands. No woman has run that distance faster in over 30 years.
696G7 TIL humans in the form we are now are up to 300,000 years old. Meaning thousands ands thousands of couples had to procreate for you to exist right now.
96wr TIL Uncle Sam was a real person who got his name correlated to the U.S. during the war of 1812.
xReB TIL that at 73 years old, Ronald Reagan received a recruiting letter from the Marine Corps while he was President