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TIL Tony Iommi lost the tips of his right middle- and ring-fingers in an industrial accident, leading him to down-tune the strings to ease playing and bending, thus contributing to Black Sabbath's unique, heavy metal sound

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D1o7e TIL about Deep Springs College, a two year, ~26 student college located on a rural California ranch. Tuition is free but students are expected to work on the farm year-round, isolated from all technology and society.
0dQAv TIL of 'rubber soldiers' - Brazilians conscripted by their government during World War II to harvest rubber in the Amazon for the war effort. Approximately 30,000 died from rough conditions and disease - more than the total number of solders Brazil sent to fight overseas during the war.
9wrm7 TIL that Spacex's "Falcon Heavy" is the most powerful operational rocket in the world and can lift 64 metric tons into orbit
xVLA5 TIL The tallest cliffs in the solar system are located on Miranda, a moon of Uranus. At 20km high, it would take a freefalling person 12 minutes to reach the bottom, by which time they would have accelerated to 200km/h.
9wkDr TIL: The top (summit) of Mt Everest is grey limestone, complete with embedded marine invertebrate fossils (e.g. trilobites). This means that the rock that makes up the top Mt Everest was once underwater.