• Atomic@sh.itjust.works
    link
    fedilink
    English
    arrow-up
    2
    ·
    edit-2
    7 months ago

    Earth rotates at about 460m/s around it’s own axis.

    and I’m sure scientists have access to a more precise number than that.

    we dont have to detect what we can calculate

        • Knock_Knock_Lemmy_In@lemmy.world
          link
          fedilink
          English
          arrow-up
          1
          ·
          7 months ago

          It would only work on earth because we’ve only given the time/space machine information about the rotation of the earth.

          But my question is more about science theory than fiction. Does observing gravity give any information about how fast that mass is rotating?

          • Atomic@sh.itjust.works
            link
            fedilink
            English
            arrow-up
            1
            ·
            7 months ago

            “It would only work on earth because we’ve only given the time/space machine information about the rotation of the earth.”

            So you’re the one that only wants it to work on earth then.

            And no. “Observing” Gravity does not give any information of how fast an object is spinning around it’s own axis.

            • Knock_Knock_Lemmy_In@lemmy.world
              link
              fedilink
              English
              arrow-up
              1
              ·
              7 months ago

              So you’re the one that only wants it to work on earth then.

              No. Are you suggesting we supply this machine with the rotational velocity of all planets in the known universe? Or some other solution?

              How could we jump to a planet on the other side of the galaxy?