› added 3 months ago

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TIL The world's first Tokamak fusion reactor will start producing deuterium and tritium plasmas in the 2030s, and just the initial experimental trials will consume the totality of the world's tritium supply, most of which comes from Canada, or Canadian-designed CANDU reactors abroad.

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GYw5j TIL The world suffered an invasion of cloned crayfish. Marbled crayfish were first discovered in 1995. Since they can clone themselves, people who bought them as pets ended up dumping their unwanted extra crayfish into rivers. There are now clone colonies all over the world
JZYV TIL that although samurai are best known for their swordsmanship, originally the way of the warrior was the way of the horse and the bow. “kyūjutsu [art of archery] was actually considered a more vital skill for a significant portion of Japanese history”
dPQ9 TIL that the SS officer who arrested Anne Frank and the other inhabitants of the secret annex later bought her book to see if he was in it. (He wasn’t.)
8OwG TIL sixty years ago, 10–20% of the Chinese population was short-sighted. Today, up to 90% of teenagers and young adults are.
wLl5P TIL about John Arnold van Hengel, a grassroots activist and entrepreneur who, in 1967, founded St. Mary's Food Bank, the world's first food bank in Phoenix, Arizona.