• bleistift2@sopuli.xyzEnglish
      12·
      2 years ago

      That’s interesting. Obviously, you’d put a center dot to disambiguate millihertz from meter-hertz, but I can’t recall ever having learned a rule about that. So some combinations of units are inherently ambiguous?

      Also: Hz/dpt.

      • renzev@lemmy.worldEnglish
        8·
        2 years ago

        I can’t tell which unit is more cursed: millihertz or meter hertz. Surely, anything that could be measured in millihertz is more natural to measure as a period, or as revolutions per minute or something, right?

        EDIT: Also, TIL about dpt. Thanks!

        A dioptre (British spelling) or diopter (American spelling), symbol dpt, is a unit of measurement with dimension of reciprocal length, equivalent to one reciprocal metre, 1 dpt = 1 m^−1.

        • bleistift2@sopuli.xyzEnglish
          3·
          2 years ago

          TIL about dpt

          Tell me you don’t [Edit: need] glasses without telling me you don’t need glasses :D

          • renzev@lemmy.worldEnglish
            2·
            2 years ago

            I actually do have glasses, I just never bothered learning about any of the technical details behind my lenses. Optometrist measured my eyes, I chose the cheapest frame the store offered, came back a week later to pick up the glasses and that’s about it.

        • Eheran@lemmy.world
          2·
          2 years ago

          Speed as meter per hertz is a rather odd case, like with a machine that goes in discrete steps.

          In any case, I never use implied multiplication (and others) and always simply put everything where it should be.

    • perviouslyiner@lemmy.world
      4·
      2 years ago

      Saw a video using mHz recently and it took way too long to realise the readout was correct and not a typo of MHz …