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TIL it's estimated that 16% of the world's gold and 22% of the world's silver is contained in Japan's electronics alone- so much that Japan is asking its citizens to donate old electronics to make the Olympic medals.

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DRJv TIL: The CIA introduced LSD to Ken Kesey, who in turn carried on with the acid test parties. Creating the hippie movement we know today.
9wAbM TIL: the majority of sold/produced oysters have an extra set of chromosomes making them sterile.
8ab7L TIL there was a time when video games and other software were stored on cassette tapes
nWGxP TIL that Chinese forces caused a flood as a defensive scorched earth tactic, during the Sino-Japanese War. It was tactically successful, but came at a great cost to civilians.
Vv4B TIL that between 28 and 32 is, mathematically, the best age to get married