• zkfcfbzr@lemmy.world
      link
      fedilink
      English
      arrow-up
      188
      ·
      1 year ago

      Spinning it at 1575.42 Million RPS would create a 1575.42 MHz radio wave. That specific frequency is used by the GPS - so by doing this you’d be interfering with the reception of GPS signals, which is the illegal act you’d go to jail for here.

    • RobotZap10000@feddit.nl
      link
      fedilink
      arrow-up
      31
      arrow-down
      2
      ·
      1 year ago

      The magnets spinning at that speed creates a frequency which can interfere with other radio signals.

      • CookieJarObserver@sh.itjust.works
        link
        fedilink
        arrow-up
        16
        arrow-down
        6
        ·
        1 year ago

        ⠀⠀⠀⠀⠀⠀⠀⢀⡔⠋⢉⠩⡉⠛⠛⠛⠉⣉⣉⠒⠒⡦⣄⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⢀⠎⠀⠀⠠⢃⣉⣀⡀⠂⠀⠀⠄⠀⠀⠀⠀⢱⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⡰⠟⣀⢀⣒⠐⠛⡛⠳⢭⠆⠀⠤⡶⠿⠛⠂⠀⢈⠳⡀⠀⠀⠀⠀ ⠀⠀⠀⠀⢸⢈⢘⢠⡶⢬⣉⠉⠀⠀⡤⠄⠀⠀⠣⣄⠐⠚⣍⠁⢘⡇⠀⠀⠀⠀ ⠀⠀⠀⠀⠈⢫⡊⠀⠹⡦⢼⣍⠓⢲⠥⢍⣁⣒⣊⣀⡬⢴⢿⠈⡜⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠹⡄⠀⠘⢾⡉⠙⡿⠶⢤⣷⣤⣧⣤⣷⣾⣿⠀⡇⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠘⠦⡠⢀⠍⡒⠧⢄⣀⣁⣀⣏⣽⣹⠽⠊⠀⡇⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠑⠪⢔⡁⠦⠀⢀⡤⠤⠤⠄⠀⠠⠀⡇⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠑⠲⠤⠤⣀⣀⣀⣀⣀⠔⠁

        • ChapolinColoradoNZ@lemmy.world
          link
          fedilink
          arrow-up
          23
          arrow-down
          7
          ·
          1 year ago

          It wouldn’t produce anything. For magnets to induce electricity they require a conductor and air isn’t one, at least not a good enough one. Without electrical current, there’s no voltage, nor constant or oscillating kind of current and therefore no radio frequencies. An electronic crystal and a handful of components could.

          • nothacking@discuss.tchncs.de
            link
            fedilink
            arrow-up
            7
            ·
            edit-2
            1 year ago

            No. Electromagnetic radiation. It doesn’t need a conductor. Think of it as a loop antenna except instead of a coil of wire generating the field a permanent magnet does.

            An electric field is produced by any moving magnet, all a nearby conductor does is provides easily movable electrons that can flow in response to it.

            • ChapolinColoradoNZ@lemmy.world
              link
              fedilink
              arrow-up
              2
              arrow-down
              1
              ·
              1 year ago

              So are you saying that a fidget spinner equipped with a couple of magnets and spun fast enough to generate that radio frequency can interfere with a purpose built radio broadcasting antenna set for the same (or resonant) frequency? In other terms, it will be able to radiate enough mV over the air to disrupt it?

              • nothacking@discuss.tchncs.de
                link
                fedilink
                arrow-up
                6
                arrow-down
                1
                ·
                1 year ago

                The fast enough part is key. To generate a signal on the AM broadcast band you would have to rotate it at 800 thousands rotations per second. As for being able to interfere, radio signals are often in the microvolt/m range by the time they reach the reciver, and a strong magnet can produce a few volts in a small (10-20 turns) coil just being moved by hand. If you somehow managed to get a magnet spining at the 1575 million rotations per second as in the meme (without it disintegrating on contact with air, or getting ripped apart, or turning the air to plasma), it would produce massive amounts of field, tens of thousands of volts per meter.

                GPS signals are actually especially weak, as low as 0.3 uV/m.

          • Bwaz@kbin.social
            link
            fedilink
            arrow-up
            6
            arrow-down
            2
            ·
            1 year ago

            Electricity isn’t the same as electromagnetic radiation. A varying magnetic field induces a varying electric field which radiates into space as an EM wave. See Maxwell’s equations.

        • douglasg14b@beehaw.org
          link
          fedilink
          arrow-up
          1
          ·
          edit-2
          1 year ago

          That’s not how that works…

          The magnets aren’t being moved across conductors to induce currents.