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TIL the world's largest hydroelectric dam is being built in the Congo River. It could generate 40,000 megawatts of energy and provide 40% of Africa's electricity

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RRk8 TIL that Jupiter’s gravity will eventually cause Mercury to crash into the Sun or to be ejected from the Solar System.
pLvA TIL Pentagon freaked out in the 1980s when they realized Finland had, against their expectations, managed to build two Mir submarines capable of diving to 6000 meters. They went on to shut down the whole Finnish submarine industry by privately threatening the country with heavy sanctions.
m6JO TIL after WWII plants were bombarded with radiation to produce useful mutations known as Atomic Gardening which resulted in todays peppermint and red grapefruit
v1vkB TIL that Maple trees aren’t the only trees tapped for syrup. The sap from Pine, Birch and Black Walnut trees also produce edible syrup.
P1KrL TIL about "Noah's syndrome" - an extreme form of animal hoarding disorder