• Treczoks@lemmy.world
    link
    fedilink
    English
    arrow-up
    2
    ·
    9 days ago

    The lunar month is currently ~29.5306 days (synodic, on average). Some day in the future (probably in a few million years), the average synodic moon cycle will reach 30 days (it is slowing down) - if, and that is a big if - we keep the current definition of “second” and “day”, because both the length of the day as well as the lenght of the year will have changed…

    • Hamartiogonic@sopuli.xyz
      link
      fedilink
      English
      arrow-up
      5
      ·
      edit-2
      9 days ago

      I suggest we switch to Planck based units. Just slap on a suitable multiplier to make the final unit practical in normal life and engineering. Basically like the mol unit but with a more precise and natural foundation.

      If the fundamental constants of the universe aren’t exactly constant, we’re screwed and there are no good units.