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.

  • AngryCommieKender@lemmy.world
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    7 days ago

    Bicycles. If we could have gotten bicycles a few centuries before cars, I don’t think modern cities would be so damn car centric.

    • pmk@lemmy.sdf.org
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      7 days ago

      If I may ask, where are you from? The city I live in is a nightmare for cars, the roads were made for horses and walking, narrow and winding cobblestone streets and the city tries its best to keep cars out of the center.

  • Salamander@mander.xyz
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    7 days ago

    I would take a portable CD player, place a CD with Rick Astley’s Never Gonna Give You Up on it playing backwards, hook up solar panels, remove the ability to shut it on/off, and set it up a circuit that will:

    • As the device solar charges, keep it off until some voltage threshold is exceeded
    • Once the voltage is high enough, start a random timer (8 - 100 hours), so that it is not immediately obvious that the sun activated the device
    • When the timer ends, turn the music on on repeat mode
    • Sometimes turn the music off at random, and then turn it on again at random after a long delay, so that in some cases you can have turn ‘ON’ events without the device being exposed to the sun
    • When the voltage drops below a low threshold, turn the device off until it is charged again
    • Jimmycrackcrack@lemmy.ml
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      5 days ago

      Imagine how crazy it would be as tech advanced through the ages and people create their own artificial sound and eventually realise that that sounds from the mysterious artifact from the future was playing music BACKWARDS and there’s discernible lyrics.

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        4 days ago

        Hopefully the English language is developed and Rick Astley gets to make his song before anyone figures it out!

  • showmeyourkizinti@startrek.website
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    7 days ago

    If you’re looking for the biggest change in our timeline for the littlest work I’d give a hindu-arabic numerals to early Greek mathematicians. Watching those guys try to wrap their heads around zero, that would fuck Pythagoras.

    • prole@lemmy.blahaj.zone
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      6 days ago

      The idea that nobody understood the concept of zero until long after the Greeks is just something I can never understand.

      Just… how? I don’t remember having to be taught what zero was, I’m pretty sure I grokked it instantly.

  • CanadaPlus@lemmy.sdf.org
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    7 days ago

    One of those 3D printed non-round gear toys. They could immediately appreciate both the impressive technology that went into designing and manufacturing it, and that it has no use whatsoever. Which would be a trip.

    • nighty@lemmy.ml
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      7 days ago

      That still trips up some people today. That metal monolith that was propped up in the desert a year or two ago comes to mind.

  • 𒉀TheGuyTM3𒉁@lemmy.ml
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    7 days ago

    I’d just give a LGM-118A Peacekeeper MIRV to the Aztecs and say nothing more. I wonder if they would eventually manage to do something with it.