› added 5 years ago

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TIL that the phrase "A-OK" originated from NASA engineers who used it during radio transmission tests because "the sharper sound of A cut through the static better than O"

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via reddit.com

Ookn4 TIL The lens in your eye yellows as you grow older, making blue and purple less vibrant.
8WNL TIL that China has banned live streams of people eating bananas in a “seductive” fashion.
XEvNj TIL the three Apollo 11 astronauts could not get life insurance for their historic space moon shot. To provide for their families in case of catastrophic failure, they autographed commemorative postcards, a friend had them postmarked the day of the launch and distributed to their families.
j6RLE TIL in 2020 global human-made mass exceeded all living biomass
Br0Ax TIL that a Utah lawyer started a free service making it easier for Mormons to resign their church membership. Thousands have taken him up on it.