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TIL that clapperboards are used to synchronize audio and video captured in separate devices

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KO17R TIL that Mark Mothersbaugh, co-founder, lead singer, keyboardist of 1980's new wave powerhouse DEVO, was the composer for Marvel's Thor: Ragnarok soundtrack and is signed on for Thor: Love and Thunder.
wLlG8 TIL Postural Orthostatic Tachycardia Syndrome (POTS). It’s a form of Dysautonomia, that can affect many automatic bodily functions. Called an Invisible Illness, sufferers become adept at hiding their symptoms and may look healthy on the outside but daily activities can often be a struggle.
A7xa TIL A T-Rex’s arm is about as long as an average human male’s arm.
kJAM1 TIL the Soccer Ashes Tournament. It was played between Australia and New Zealand every year from the 1920s until the trophy for it was lost in the 1950s. It was found again this year in a former Australian soccer star's garage so they restarted the tournament this year.
PYn0g TIL the U.S.A. installed nuclear powered undersea data cable taps to spy on the Soviet Union