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TIL There is an annual Olympiad for high school Chemistry. It began in 1968 in Prague, and had 3 countries participate. It now includes 75 countries, each sending one student team of 4. There is a practical exam, followed by a written exam. Both can be up to 5 hours in length.

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BrENW TIL that Snoopy's doghouse is always shown from the side so as to never reveal the interior, leaving what's inside to the reader's imagination. There was only one exception: on May 8, 1960, the inside of the doghouse can be seen. It's just an empty doghouse.
EgZN7 TIL no child has been harmed or killed by poisoned or dangerous Halloween candy.
9xRm TIL Because Jupiter is so heavy and far away, that the Sun also orbits Jupiter. And Jupiter orbits a point outside of the sun itself. This is called the ‘Barycenter’.
7akp TIL (from the former Inspector General of the U.S. Department of Transportation) that if you work for an airline and you blow the whistle on them for safety violations, you will NEVER be able to work in the aviation industry OR in any related government agencies ever again
DQanP TIL During the 1990's, the Japanese cult Aum Shinrikyo unsuccessfully experimented with anthrax, botulinum toxin, cholera, Ebola, and Q fever.