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TIL during the Vietnam War, the U.S. carried out Operation Popeye, a "cloud-seeding" mission to stimulate clouds in Vietnam to increase rainfall and lengthen the monsoon season. After the operation was declassified in 1974, the United Nations banned the weaponization of weather.

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awWWN TIL that the first two toys to use electronic sound chips to make noise rather than an analogue recordings, Simon and the Speak & Spell, both got their hardware from graphic calculator maker Texas Instruments
YB9Z TIL that Oreo cookies are actually the knock-off brand of another company, Hydrox.
gkGW TIL Queen Elizabeth served as a truck mechanic in WW2
LQVjv TIL the United States Bureau of Land Management released a promotional hip-hop song and music video in the 1990s.
yXRp TIL that tapes revealed that Enron shut down a power station in California and created an artificial power shortage, deliberately aggravating the 2001 California Energy Crisis, so they could raise prices and cost residents billions in surcharges.