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    FullofStars
    FullofStars (#3921)
    1 year ago

    The funny bit, the pound has been defined by the kilogram for twenty years prior to this because “For several years before the Mendenhall order was actually issued, the Office of Weights and Measures was “practically forced” to use the metric standards because of their superior stability, and because they were better designed for carrying out precision comparisons.”

    en.wikipedia.org/wiki/Mendenhall_Order

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