› added 9 years ago

75

TIL that the deepest layer of the ocean, the hadopelagic zone, is named after the realm of Hades, the Greek underworld. This ranges from 6000m (3.7 miles) deep, down to the very lowest reaches. Populations are sparsest here, and are believed to be sustained by marine snow and thermal vents.

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P17yV TIL Tooth brushing only became widespread in the US after WWII, when returning soldiers continued the practice that had been required during their military service
5vnB TIL A researcher in Antarctica got a date via Tinder with a woman who was researching at a field camp 45 minutes away.
r0y0 TIL: In olden times, homes had thatched roofs in which domestic animals such as cats and dogs would like to hide. In heavy rain, the animals would either be washed out of the thatch, or rapidly abandon it for better shelter, so it would seem to be raining cats and dogs
wLngP TIL in 1973 before reality TV, an anthropologist sailed across the Atlantic with 11 attractive people of different races/sex/nationalities. Known as the "sex raft" he'd purposely done this to stoke sexual relations, create tension, and purposely sought danger to see if humans would act like monkeys.
knP4 TIL that Joseph Medicine Crow became the last Plains Indian war chief ever after completing all four required tasks while fighting in Europe during World War II. These included touching an enemy soldier, stealing his weapon, leading a successful war party, and stealing an enemy’s horse.