• Lovable Sidekick@lemmy.world
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    2 days ago

    I have a recurring fantasy of visiting my favorite physics professor in the 1970s and showing him a modern smartphone. He showed me how to use integrated circuits, when microprocessors were a very new thing and we were mostly just making LEDs blink.

    • davidgro@lemmy.world
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      3 days ago

      Take a photo of them. Then zoom in. If that doesn’t blow their minds, take a video of them and play it back.

      Digital cameras have been commercially available as early as the late 80s, but were of course super low res and with terrible image quality even accounting for that compared to what I just carry in my pocket now.

    • tetris11@lemmy.ml
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      3 days ago

      Charging wouldn’t be that difficult either if its pre USB-C. A nice steady 5V trickle at two visible connectors. Get yourself a nice thin copper wire with the right number of turns along a rotating magnet, and crank that handle gently

  • creamlike504@jlai.lu
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    2 days ago

    I would bury a bunch of identical time capsules all over the world, each with the location of the other time capsules and a detailed timeline of increasingly terrible global events.

    The later it’s dug up, the more credible it’ll be.

  • Maiq@lemy.lol
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    3 days ago

    Alright you primitive screw heads, listen up! You see this? This, is my boomstick! The twelve-gauge double-barreled Remington. S-Mart’s top of the line. You can find this in the sporting goods department. That’s right, this sweet baby was made in Grand Rapids, Michigan. Retails for about a hundred and nine, ninety five. It’s got a walnut stock, cobalt blue steel, and a hair trigger. That’s right, shop smart shop, S-Mart. You got that?

  • stoy@lemmy.zip
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    3 days ago

    How far back are we talking?

    I mean the 90s were about 30 years ago (sorry for making you feel old).

    So let’s say that that I managed to find a way to travel in time, and had time to prepare for a trip to 95…

    I will also assume that it is a paradox self correcting time travel deal.

    I’d bring an iPhone with me, that should convince anyone that I am from the future.

  • superkret@feddit.org
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    3 days ago

    A fixed gear bicycle with wide, flat-resistant tires and a belt drive. Plus a hand pump, a set of tools and a box full of inner tubes.

    That should be enough to keep it running for a lifetime, offers actual utility, and it’s understandable enough what it does so I’m hopefully not burnt at the stake, and people can build their own with what they have.

  • whotookkarl@lemmy.world
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    3 days ago

    I’d want something that can help people and can be tested and has an immediate, dramatic effect to make it undeniable

    Maybe insulin? You could literally bring comatose people back from the brink of death in minutes

    • shalafi@lemmy.world
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      2 days ago

      Wouldn’t anyone needing insulin already be dead? Or is there a middle ground where a diabetic can go in and out of shock, yet survive without?

      • whotookkarl@lemmy.world
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        2 days ago

        They would survive for awhile after diagnosis on a starvation diet, maybe weeks, and slipping in and out of a coma but it was a death sentence. There’s stories from the 1920’s when whole wards of kids were hit with a first dose that removed the symptoms in minutes. I can’t imagine being in that room when all that despair and anguish turned into hope and relief.

  • kelpie_returns@lemmy.world
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    3 days ago

    Generator. Television. PS2. Cowboy Bebop on DVD.

    Idk if it would work at all, but TANK is such a good fucking song, and I hope they enjoy at least that much before burning me for witchcraft.

  • theblips@lemm.ee
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    3 days ago

    Something like a digital version of Wikipedia could work out great. I could have encyclopedic knowledge of their world and future events, such as “the pope is going to name himself such and such” at the palm of my hand

    • Jarix@lemmy.world
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      2 days ago

      Something like a digital version of Wikipedia

      ?? Wikipedia IS digital.

      What did you mean?

    • rmuk@feddit.uk
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      3 days ago

      Yeah, I wonder how robust an ereader and one of those solar phone chargers would be? I seem to recall English Wikipedia takes up about 5GB, so you could probably bring a good chunk of Project Gutenberg too.

  • frankPodmore@slrpnk.net
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    3 days ago

    Assuming we’re going back far enough, antibiotics. Cure one person of the bubonic plague or tuberculosis and people will start taking you seriously.