• @[email protected]
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    1039 months ago

    Easy. Take a wire that is exactly 1 meter long. Form a circle from the wire. The circumference of that circle is 1 meter.

      • @lemmyman
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        309 months ago

        Now the engineers and/or scientists are crying

      • @[email protected]
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        189 months ago

        You don’t need to, it’s defined. (Lol). If you take a circle with a circumference of 1, then its circumference will be 1… I think I might have lost some braincells reading this.

        • @Kill_John_Lennon
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          39 months ago

          He obviously meant to say how do you measure that it’s exactly 1m, even when still in a straight line. Exactly being the key word here.

          • @hesdeadjim
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            29 months ago

            But is the circumference of the outer circle or inner circle 1m? The wire has a nonzero width.

      • @Blue_Morpho
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        139 months ago

        I don’t have to measure it. I stick under glass and define it as the standard which all other measurements are derived from.

        • MxM111
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          79 months ago

          Ok, you got another source of water - physicists.

        • @RampantParanoia2365
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          39 months ago

          Exactly. Use a laser measure to cut a plank, then use that for reference!