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TIL that a second is technically defined to be "9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium-133 atom”.

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Bwrk TIL Sorrell Booke (the dude who played Boss Hogg in Dukes of Hazzard) was fluent in five languages, had degrees from Yale and Columbia Universities, and served in the Korean War as a counterintelligence officer.
XEa6D TIL Stellate Ganglion Block is a breakthrough treatment thats been proven to significantly diminish various symptom of PTSD. Medal of Honor recipient and Marine veteran Dakota Meyer told 60 Minutes he felt like a million pounds was taken off him immediately after being administered one of the shots.
nWaMb TIL Back in 1993, Shaquille O’Neill would “punch you in the stomach and not give a heck”
OGAma TIL that the late actor Rene Auberjonois was Napoleon’s 3x great grand nephew.
nexGd TIL that Toho Studios actually employs a man whose official title is "Chief Godzilla Officer." His name is Keiji Ota, and he's currently laying plans for a Godzilla Cinematic Universe.