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TIL that Jack O’Lanterns originated in Irish folklore from the Legend of "Stingy Jack", who invited the Devil to have a drink with him.

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jNJQE TIL in Dunkirk, Hans Zimmer employed the Shepard Tone, an auditory illusion that seemingly ascend or descend in pitch, and sampled the ticking sound of Chris Nolan’s pocket watch, to intensify tension throughout the film.
ne4Kd TIL that snooker player Ronnie O'Sullivan was accused of disrespect by an opponent for using his opposite hand to take a shot. To prove he wasn’t bringing the game into disrepute, he played 3 frames with his left-hand against a former world championship runner-up, winning all 3.
NXg1P TIL there was a secret hospital during WW2 that was ran by a female doctor Franja (the hospital was also named by her) where they also treaded 2 US pilots that were shot down. When the doctor got married, they used parts of the paraschute for her wedding blouse.
78llx TIL that the US Marshals' "Con Air" service will transport non-federal prisoners at a cost of no more than $2,643.
Z8ZRQ TIL Charles Babbage "the father of the computer" also invented the pilot , the pointy thing on the front of older trains, to remove cows from the track.