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TIL Jonny Kim is a Korean American, Astronaut, Doctor, Navy Seal

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69rrY TIL the German submarine U-864 was sunk along the Norwegian coast in 1945 with 67 tons of mercury on board. The wreck has contaminated nearby cod, cusk and crab, and there are plans to entomb the remains in sand and concrete.
DQa5j TIL that during the 1980s, the Soviet Union conducted an experiment in which they used geese as guard animals for their missile bases. The geese were found to be better than dogs at detecting intruders because they were less easily distracted.
P1jGO TIL that elemental mercury (quicksilver) poses few toxic consequences when ingested, whereas metallic mercury vapour is highly toxic to the central nervous system
8ebnb Today I learned that there is a 1 Acre plot that belongs to the United States in Great Britain. It's a memorial for JFK, and Queen Elizabeth granted the plot to America
R7MR4 TIL of a insurance dispute following the 9/11 attacks of whether or not the attacks constituted 1 or 2 events under the policy terms