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TIL Two notes can be sung by one person at the same time, aka. polyphonic overtone singing

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Y9vr TIL of a theory known as “Quantum Immortality”, in which the mind will always transport itself to alternate realities where it survives otherwise fatal events.
MEMB TIL of the Moriori genocide. They could have fought back, but their leaders ended up saying that diplomacy “was not a survival strategy, but a moral imperative”.
LkZEQ TIL that a week after the 9/11 attacks, there was a postal mail attack in which perpetrators sent letters containing anthrax spores to several Congressman, killing 5 people and infecting 17 others.
oakE TIL that US election day is always held on a Tuesday because in 1845 farmers often needed a full day to travel by horse-drawn vehicles to the county seat to vote. Farmers would leave Monday, vote on Tuesday and be back in time for market day, which was on Wednesday.
a84Mo TIL; Flushing a toilet with the lid down could reduce airborne particles by as much as 50%.