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TIL that Teflon was first used for the first nuclear bombs. The anti-stick frying pan coating was used to coat valves and pipes in the separation of Uranium, which would corrode other materials much quicker. Only after WW2 was it used for cookware.

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X0MlX TIL about the correct way to dispose of a tattered Canadian flag: unceremoniously burn it (if natural) or respectfully cut it apart colour-wise and put it in a garbage bag (if synthetic).
GErJ TIL Geraldo Rivera is largely responsible for the Satanic Ritual Abuse Panic of the late 1980’s
OGZe1 TIL Larry David quit his writing job at SNL in the first season, only to show up to work two days later acting as though nothing had happened.
LQ6wV TIL Keyboard instrument already exist since the third century BC. The earliest known keyboard instrument was the Ancient Greek hydraulis, a type of pipe organ invented by Ctesibius of Alexandria.
vVPj TIL that Liquid Fluoride Thorium Reactors, a different kind of nuclear reactor, could generate the entire world’s annual energy needs using 7,000 tons of thorium mined from an area the size of a football field in Idaho.