you are viewing a single comment's thread
view the rest of the comments
[–] 4 points 5 months ago (1 child)

You can use chemical batteries to create electric current without magnets.

You can also create weak permanent magnets by just hitting iron with a hammer.

  • source
  • parent
  • hideshow 1 child comment
  • [–] 2 points 5 months ago

    Looked it up, this looks the easiest to tech up. You still have to heat it up to a dark red color, align it north to south and then hammer. It uses the earth's magnetic field to magnetise.

    Then tech up to stronger steel magnets.

  • source
  • parent