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TIL that plankton produces 50-85% of the worlds oxygen.
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earthsky.org
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TIL the Nazis took over a high-end Berlin brothel commonly used by prominent Germans and foreign dignitaries, replaced all the prostitutes with spies, and continued business until a British air raid demolished the building in 1942
R5xA4
TIL the word "Scuba" is an acronym for 'Self-Contained Underwater Breathing Apparatus.
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TIL In 2017, a woman called Chau Smith ran 7 marathons in 7 consecutive days on 7 continents in celebration of her 70th birthday.
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TIL That there is a secret subway system in Moscow that is longer than the actual public metro system
4ky16
TIL that Gates of the Arctic in Alaska is the northernmost National Park in the U.S. It’s three times the size of Yellowstone but sees fewer visitors in a year than Yellowstone gets in a single day.