• tibi@lemmy.world
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    3 hours ago

    A full working computer, more powerful than what we used to go to the moon, and using less power than a light bulb.

    It can take many forms, like smartphones, SBCs or older PCs/laptops.

    • BruceTwarzen@lemm.ee
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      49 minutes ago

      By that logic, a lighter. Better than smashing two rocks together, that’s how we used to make fire.

      • tibi@lemmy.world
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        3 hours ago

        The tape head is basically a small and really sensitive electromagnet. Magnetized tape creates small disturbances in the magnetic signal. Amplify those disturbances and you get sound. Similar to an antenna, but only works in close proximity.

        This also works in reverse. Feed an audio signal through the electromagnet, and the electromagnet will create the disturbances in whatever is next to it. You can do this to record to a tape, or you can do this to pass sound to another tape head, which is how these aux cassettes work.

        You can build one yourself really easily. Just take the tape head from a broken player and solder to an aux cable. Take a cassette, remove the tape, and put the tape head in the middle portion so it comes into contact with the player tape head.

        • mipadaitu@lemmy.world
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          47 minutes ago

          Of course it’s Technology Connections. Who else would make a video about a (now) useless piece of 80’s tech with enough content to satisfy any level of curiosity.

  • JubilantJaguar@lemmy.world
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    18 hours ago

    A knife. Futuristic in that it will be handy for hunting and self-defense after the future collapse of civilization that results from our insatiable appetite for consumption - of, among other things, useless gadgets.

    • JustEnoughDucks@feddit.nl
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      6 hours ago

      It’s interesting the difference in what people think a collapsed civilization will look like.

      Some people think we will “return to monke” where wilderness survival skills will be essential and people who have them will be the “main characters.” That would probably be the easier and better future.

      The more likely option will be technofeudalism where rich people have small, brutal armies and control localized power grids, farming operations, and politics with tech as mass migrations happen and wildlife becomes all but extinct outside of human cultivation. Survival skills won’t matter when all land and food scarcity is controlled by a rich few with absolute control. The average survivalist will be wiped out with the first natural disaster or by the feudal lords with drones. Return to nature might only come after 50 years when chip supplies and power grids have dried up and fallen apart, but it would just as likely be mad-max as oil could likely still be used.

      Who knows. Fascism might take over with how it is going now and solve the climate crisis with mass genocide and forcing green energy for all we know.

      • GrammarPolice@lemmy.world
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        5 hours ago

        I see you’ve read Yanis Varoufakis. In all realism though, a fallen society is most likely to be a result of climate change. First it gets too hot for Africans, so their only option is to move northward and eastward to the Middle East. This results in tightened borders and the death of many due to heatstroke and dehydration - I also don’t doubt a slave trade-like and human exploitation era might come about because of this. Increased demand for AC’s in the west will also be a byproduct of this. Melting ice caps will also increase the danger to many of those living in coastal regions - Florida probably sinks faster than we’d predicted.

        All of this I project to happen within the next 50 years where the problems are left for Gen Z and further generations to deal with.

  • 👍Maximum Derek👍@discuss.tchncs.de
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    22 hours ago

    If you shop around you can find a Brother (B&W) laser printer for about $100.

    Imagine this weird future: Printers that always just work no matter what type of computer you have or how long they’ve sat since you last used them. And the “ink” cartridges last forever. And you can buy 3rd party refills or even refill them yourself. Plus it’s completely reliant on microplastics to do its job, what’s more futuristic than that?

    • Dasus@lemmy.world
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      8 hours ago

      Imagine this weird future: Printers that always just work no matter what type of computer you have or how long they’ve sat since you last used them. And the “ink” cartridges last forever. And you can buy 3rd party refills or even refill them yourself. Plus it’s completely reliant on microplastics to do its job, what’s more futuristic than that?

      I lived in the 90’s, when office work was a tad more reliant on printers and late stage capitalism wasn’t as bad. My dad had a laser printer for his business. Very reliable, fast, never needed anything.

      I remember that as the past, is my point.

      • farcaster@lemmy.world
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        20 hours ago

        Yeah, as low as $61 on Amazon for 1TB. Pretty amazing if you’re old like me and remember diskettes.

          • Boomkop3@reddthat.com
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            10 hours ago

            They’re sold as 1TB for that price. But if you actually write that much, you’ll find that only part of your data is there. The rest is garbled or zero.

            There’s tools to restore this (on windows/linux), and it’ll show up as a smaller size when you run them. You can also use such tools to set any fake size you like

          • oo1@lemmings.world
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            19 hours ago

            In the uk I can get 1TB for 95gbp from sandisk website.

            So probably less than 100 usd in usa from a reputable seller.

  • WoodScientist@lemmy.world
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    22 hours ago

    A bow drill fire starter.

    …I suppose it depends on what you assume the future will be like…

    Barring that, you can get some small vials of tritium gas for under that price.

      • WoodScientist@lemmy.world
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        20 hours ago

        Not much really. Looks cool though. I suppose it’s more of a decoration than “tech.” About the only practical application of it is a tool to terrify the uneducated. The quantities of tritium the average person can buy are beyond harmless. You could breathe a hundred vials of the stuff and be completely unaffected. If you drank nothing but tritium water for several weeks, you would have some issues. But tiny vials with micrograms of tritium vapor inside? Utterly harmless.

        Or, I suppose for the criminally minded, you could find some evil uses for it. You could probably rob a bank with it. “Give me all the money or I break this vial of radioactive vapor!” That would probably get you a wikipedia page, if you’re just dying for your 5 minutes of fame. You could go down in history as, “that mad scientist that robbed a bank using radioactive gas.” Of course it would be a bluff.

        Though if you’re just going to bluff your way through bank robbery, you can just stick your hand in a hoodie pocket for the same effect.

        I suppose you could use it for other similar criminal acts of varied nobility. You could probably use the same bluff to create a hostage situation to bring awareness to whatever political/religious cause is your cup of tea. Ultimately most people are very ignorant of nuclear science, and simply the words “radioactive tritium” would cause people to shit themselves. And that fear could be harnessed for all sorts of malevolent purposes. (Even better as you can actually show people the faint glow from it, and prove that you do have something radioactive.)

        Hmm… what else could you use tritium for? I suppose you could use it for religious purposes. Absolute quantities really don’t matter much for that.

        What else? You could tie it to a keychain and be able to find your keys in a dark room.

        But really, it’s mostly a novelty. I think small amounts of it can be used for gun sights. But in any quantity the average person could afford or legally be allowed to purchase, it’s a harmless novelty. Larger quantities can be used in fusion reactor experiments and nuclear weapons. But if you try to acquire that much, you better have a budget in the millions, and the NRC is going to be on your ass. The average person can get a small vial of it that faintly glows blue in a dark room. It looks cool embedded in jewelry, but it really doesn’t have much practical purposes beyond perhaps terrifying the ignorant. But I really don’t consider malevolent uses to be truly practical applications.

        (In case it isn’t obvious, I do not endorse using radioactive tritium in the commission of any crime or act of violence or threat of violence.)

  • ChonkyOwlbear@lemmy.world
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    19 hours ago

    A basic DNA test can tell you your ancestry back thousands of years and identify numerous genetically determined traits. It’s kinda crazy what kinds of things they can tell you about yourself.

    • Boomkop3@reddthat.com
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      10 hours ago

      And if you send in your dna three times, you can find all three if your ancestries! Really tho, there was some funny news on this a while back when identical twins took those tests and got different results

  • breadsmasher@lemmy.world
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    23 hours ago

    what is “futuristic” in this context?

    A calculator is pretty futuristic depending on where you start

    • ArmoredCavalry@lemmy.worldOP
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      22 hours ago

      I was thinking of something that would be considered futuristic to an average person today. So, maybe something uncommon, with impressive capabilities, but still affordable?

      Not sure if many items fit that criteria, but was curious if any!

  • reddig33@lemmy.world
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    23 hours ago

    Bluetooth headphones/headset/earpiece. You too can look like Uhura from Star Trek by sticking a wireless speaker in your ear!

  • Num10ck@lemmy.world
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    20 hours ago

    you can get several smart outlets around your home for that, have fans and lamps and humidifers etc all remote controlled even with your voice.