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130

TIL there's 20-40x less oxygen in water than air.

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d8LPj TIL that Ulysses S. Grant went on a post-presidency world tour from 1877-79. He was received quite well, often greeting cheering crowds, being offered gifts, and meeting various heads-of-state. He even acted as an unofficial diplomat in some cases, such as a land dispute between China and Japan.
dlNd TIL Japanese green traffic lights are blue
p8QlG TIL that seat belts are not mandatory in New Hampshire
xmek TIL there’s no photography or videography allowed in the Sistine Chapel because a Japanese art restoration company owns the rights to the image
5VnEQ TIL that Chlorine Trifluoride can set almost anything on fire, including glass and asbestos