› added 12 years ago

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TIL Sean Penn, Robert Downey Jr., Charlie Sheen, & Rob Lowe all are friends from high school.

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j6JPX TIL sitting U.S. President Harry Truman went for a 440-foot deep ride on captured German submarine U-2513 in 1946
M7XDV TIL that the length of a second is defined as the duration of 9,192,631,770 cycles of microwave light absorbed or emitted by the hyperfine transition of cesium-133 atoms in their ground state undisturbed by external fields.
Zp5k4 TIL: that in 2020 Native protestors in Minnesota took down a statue of Christoper Columbus and the “punishment” to the lead organizer was 100 hours of community service to educate the community about Christoper Columbus’s real history.
N6Pb TIL William Halsted, a pioneering surgeon from the 19th century who discovered anesthetic properties of cocaine, eventually got addicted to it. He signed himself up in a sanatorium where his addiction was “treated” with morphine. He remained a morphine addict for the rest of his life
9wy47 TIL Geysers are quite rare, requiring a combination of water, heat, and fortuitous plumbing. Yellowstone National Park is home to half of all the geysers found in the world.