• Caveman@lemmy.world
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    6 hours ago

    You go fire - > kiln - > charcoal - > furnace - > steel and copper - > permanent magnets - > electric motor.

    The tricky thing is that you need a naturally occurring magnet (lodestone) to make the first steel magnet. If you happen to have a magnet on you you can do heat treatment of the steel, rub the magnet to align the atoms and get yourself a better magnet.

    After you got the electric motor you both have a generator and a motor easy peasy.

    • Bytemeister@lemmy.world
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      4 hours ago

      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.

      • Caveman@lemmy.world
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        3 hours 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.