this post was submitted on 06 Mar 2025
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A copper coil, a magnet, and a repetitive source of motion is not that hard. You'd have to go really far back not to have access to a mill, and even if you did, it wouldn't be that hard to invent a hand crank. The question is how you make the electricity useful. I think a simple heating element is probably the best option. Show them the river cooking their food, and the benefits should be obvious
It won't take too long for them to invent the porn machine.
Rotating slide projector is also an easy one 😉