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Cake day: June 15th, 2023

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  • EveryMuffinIsNowEncrypted@lemmy.blahaj.zonetoMemes@lemmy.mlEverytime
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    10 months ago

    For decades, the kilogram all around the world was calibrated to the Prototype Kilogram, a 1 kg physical cylinder housed in France. Over time, despite being kept in a vacuum-sealed case in a climate-controlled secure vault, it was found to actually be steadily losing mass due to normal degradation just from existing.

    Nowadays, it’s no longer as much a concern due to the kilogram being formally defined relative to universal physical constants.