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TIL: "heavy metal" music's origin began with the songwriter getting a Ford Falcon

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DQmRp TIL GPS was opened up for public use in 1983 by Ronald Reagan following a Korean Airlines flight being shot down after wandering into Soviet airspace
78JbZ TIL Quttinirpaaq is Canada’s northernmost national park, accessible only by charter plane from Resolute Bay, 720 km away. Parks Canada offers Weatherhaven semi-private accommodation, a rugged insulated tent with a solid floor, bed, and interior walls
e0EjE TIL that in 1625, a restoration of the Sistine Chapel was carried out by Simone Lagi, the "resident gilder", who wiped the ceiling with linen cloths and cleaned it by rubbing it with bread. His report states that the frescoes "were returned to their previous beauty without receiving any harm".
brO9 TIL the only perfect diamond ever found was found in Arkansas. Scoring a 0/0/0 on the AGS grading, its considered to be one-in-a-billion.
E1YBP TIL Naked mole rats defy the biological law of aging - They rarely get cancer, are resistant to some types of pain, and can survive up to 18 minutes without oxygen. But perhaps their greatest feat, a new paper suggests, is that they don't age. Naked mole-rat mortality rates do not increase with age.