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TIL that the day after 9-11, the Queen broke a 200 year old tradition and ordered the US National Anthem to be played during the changing of the guards at Buckingham Palace.

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yQpE8 TIL the rarest naturally occuring element on Earth, astatine, is so rare that there is only 28 grams of it on Earth at any given time. It is difficult to study, as most of its isotopes have a half-life of 1 second or less. Its appearance is not known with certainty.
OG5r4 TIL that mathematician John von Neumann had an unusual ability to solve new problems. When presented with a problem in programming on which there had been no published literature, he said "Oh, that!", then gave a lecture of over an hour explaining how to solve it using a hitherto unconceived theory
x65lB TIL Subway Used the Enzyme Azodicarbonamide in Certain Bread Recipes to Create Air Bubbles, a Method Often Used in Yoga Mats and Shoe Soles That Is Banned in Europe and Australia. They Stopped Using it in 2014 After a Petition Got Over 50k Signatures, Putting Pressure on Subway to Make the Change.
A1Xw TIL In 2005, a German court upheld the right of citizens to flirt at work in response to Wal-Mart Germany’s policy banning any sign of attraction b/w its workers. The court said that such regulations may be acceptable in the US, they are incompatible w/ German labor law & employees’ personal rights.
xr9k TIL Elephant populations aren’t the only ones being threatened by unsustainable poaching. Elephant poachers are also targeting vultures. it is becoming increasingly common for poachers to poison the carcass of elephants they hunt, so that the circling birds don’t give away the location of the kill.