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TIL The US Navy declassified a BILLION dollar submarine secret after it accidentally appeared in the film “The Hunt for Red October”

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aOD9 TIL patent offices do not accept applications for perpetual motion machines.
b9yGE TIL less than five per cent of the victims of transatlantic slavery were landed on the coast of the present-day United States. Most enslaved Africans were carried to the Caribbean (45 per cent) or to Brazil (45 per cent).
8aKBa TIL that people would have sex in graveyards to “laugh in the face of death”, during the Black Death. It became illegal and people were threatened with excommunication. It was thought that sexual immorality caused the plague, so prostitution and adultery were outlawed.
xVVGk Of all the bodies in our solar system, the sun is probably the one we want to give the widest berth. It gushes radiation, and even though its surface is the coolest part of the star, it burns at about 9,940°F, hot enough to incinerate just about any material. As such, there are no plans to send a manned mission in its direction anytime soon (Mars is much more interesting, anyway), but it can't hurt to figure out at what distance a person would want to turn back. You can get surprisingly close. The sun is about 93 million miles away from Earth, and if we think of that distance as a football field, a person starting at one end zone could get about 95 yards before burning up.
16p0D TIL "Bookazines", usually presented as single-topic, in-depth magazines often marketed to consumers as collectors’ items, saw newsstand revenues grow by millions in 2020. Examples are issues on BTS from Time and a Life special on the Beatles