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TIL Leonardo da Vinci Used Mirror Writing for the Majority of His Personal Notes

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gMwp4 TIL NASA uses the unit of milli-pirate-ninjas (around 40.55 mW) when referring to power of the Curiosity rover components
OovMe Today I learned that Saudi high school social studies textbooks were withdrawn in 2017 over an image of Yoda sitting alongside King Faisal.
O16a TIL New Mercedes-Benz cars will play a short blast of white/pink noise just before an unavoidable crash, forcing the occupant’s ears to turn off for a moment, preventing the hearing loss normally caused by the crash itself or airbags.
lo0AB TIL that bats aren't actually blind - they can see quite well!
16OxW TIL that the two candidates in the 1886 Tennessee Gubernatorial Election were brothers. The two campaigned alongside each other, spending the first half of each campaign stop engaging in political banter and telling stories and the second half playing fiddle tunes while the crowd danced.