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Short answer: It's complicated

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78ZvZ TIL: The hand salute of the Canadian Forces is the naval salute in which the palm of the hand is turned slightly down and inwards, and is not seen, unlike the flat, open-palmed salute of the army and air force tradition. It was adopted at the time of the unification of the forces in 1968.
R7Lnj TIL That in 1957 Little Richard saw a bright red fireball flying across the sky, which he took as "sign from God" to repent from performing secular music and his wild lifestyle at the time until 1962. The fireball actually was the launching of the first artificial Earth satellite Sputnik 1.
8exQ8 TIL about Turbonique, a company that marketed rocket and turbine engines to drag racers. In 1965, a VW Beetle fitted with a Turbonique TB-28 Drag Axle ran a 9.2 second quarter mile before going airborne at 183 mph.
KYRlR TIL the world’s first 3D computer animation — a rotating hand and face made of polygons — was created in 1972 by two students at the University of Utah.
R7ZMw TIL Many German households own a device designed to neatly cut a hole into a soft boiled egg, called an "Eierschalensollbruchstellenverursacher," literally "eggshell breaking point causer".