• Ech@lemm.ee
    link
    fedilink
    English
    arrow-up
    22
    arrow-down
    3
    ·
    5 months ago

    I mean, technically, a day passing doesn’t explicitly need the sun as it is a measure of the rotational speed of the Earth (ie time), not the position of the sun in the sky. The latter was/is simply used to measure the former.

    • Psychodelic@lemmy.world
      link
      fedilink
      arrow-up
      20
      arrow-down
      1
      ·
      5 months ago

      That’s not really a fair/honest argument when the concept of a day existed long before humans knew the earth was rotating. Originally, a day was defined as the rising and setting of the sun

      • Ech@lemm.ee
        link
        fedilink
        English
        arrow-up
        5
        arrow-down
        1
        ·
        5 months ago

        I’m not really arguing anything, just pointing it out.

      • dohpaz42@lemmy.world
        link
        fedilink
        English
        arrow-up
        4
        arrow-down
        1
        ·
        5 months ago

        To humans, before we discovered the concept of rotations around the sun, you are correct. But for an advanced being/race that had the power to create universes… I’m sure they understood far greater concepts than the rising and setting of the an orange fireball in the sky. 😊

    • astrsk@kbin.run
      link
      fedilink
      arrow-up
      9
      ·
      5 months ago

      Without a reference frame, there would be no way to tell when one rotation had been completed.