Amazing Facts Most People Don't Know

Electric vehicles are so quiet that they have systems to generate artificial engine sounds for safety.Source

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Astronauts can grow up to 2" taller during their time in space due to the elongation of their spine in microgravity.Source

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In Japan, '39' is common text speak for 'thank you', due to how 3 (san) and 9 (kyu) sound when spoken out loud.Source

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AT&T was founded by Alexander Graham Bell, the inventor of the telephone.Source

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During the Cold War, CIA agents used a method of communication based on how their shoelaces were tied.Source

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