I'd give laser pointers to Neanderthals. Even if they did figure out some useful application for them (maybe hunting?) they'd run out of batteries eventually.

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[โ€“] 23 points 1 year ago (1 child)

Something with gears. Like a cranked egg whisk. Huge amounts of science went into this, but all of it should be replicable in a few generations of experiment with even bronze working. And it should inspire inventors of the age too

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  • [โ€“] 4 points 1 year ago

    Or wood. Mills used wooden peg gears to great effect for a long time.

    The bigger challenge is to have enough jobs worth doing with gears to keep craftsmen trained, since making a smooth turning gear by hand is a thing. If this is Rome, there will be, but they already had some knowledge of gears. If it's cavemen there's not a chance.

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