• nothacking@discuss.tchncs.de
    link
    fedilink
    English
    arrow-up
    1
    ·
    10 months ago

    Really? If have had good results just placing a screwdriver inside an electromagnet, still magnetized a few years later.

    • lightnsfw@reddthat.com
      link
      fedilink
      English
      arrow-up
      1
      ·
      10 months ago

      Maybe it depends on the coil/power source. When I tried it I was just messing around with a coil I had and 12v source and it was not that effective.