I don’t mean BETTER. That’s a different conversation. I mean cooler.

An old CRT display was literally a small scale particle accelerator, firing angry electron beams at light speed towards the viewers, bent by an electromagnet that alternates at an ultra high frequency, stopped by a rounded rectangle of glowing phosphors.

If a CRT goes bad it can actually make people sick.

That’s just. Conceptually a lot COOLER than a modern LED panel, which really is just a bajillion very tiny lightbulbs.

  • magnetosphere@fedia.io
    link
    fedilink
    arrow-up
    179
    ·
    1 month ago

    Pneumatic tubes were way, way cooler than email.

    Of course, you could only use them to send a message to someone in the same office building, so the comparison isn’t perfect… but you know what I mean.

    • Omega_Jimes@lemmy.ca
      link
      fedilink
      arrow-up
      52
      ·
      1 month ago

      I’m not crazy old, but I’m old enough that the supermarket I went to as a kid had these at all the checkout aisles and the cashiers would use them to send cheques/reciepts/ whatever.

      It was awesome to see.

      • ghashul@feddit.dk
        link
        fedilink
        arrow-up
        23
        ·
        1 month ago

        They still use them today in some supermarkets, now they use them to send packets of cigarettes through the store.

        • Omega_Jimes@lemmy.ca
          link
          fedilink
          arrow-up
          8
          ·
          1 month ago

          That’s actually a pretty good use. In my local market they send the person to a separate counter.

    • tnarg42@lemmy.world
      link
      fedilink
      arrow-up
      22
      ·
      1 month ago

      Big hospitals still have them to send medications and random lightweight stuff around the complex. My wife has worked in two large hospitals that had pretty extensive tube systems, used especially with pharmacy.

      • JackFrostNCola@lemmy.world
        link
        fedilink
        English
        arrow-up
        5
        ·
        edit-2
        1 month ago

        Tom Scott does a youtube video about one in Canada (IIRC) where they send radioactive medicine from the lab a down the road to a hospital due to the half life of the medication making traditional transport (ie vehicles) impractical.

        Edit: bothered to look it up

        • fermionsnotbosons@lemmy.ml
          link
          fedilink
          arrow-up
          2
          ·
          1 month ago

          I know of a hospital where the local university sends tracers with F-18 for PET scans in much the same way. Half-life of 110 minutes.

      • Jiggle_Physics@lemmy.world
        link
        fedilink
        arrow-up
        1
        ·
        1 month ago

        The two major hospitals, relatively near me, use a combination of tubes, and robots, to dispense medications. One is working on completely robotic food service, and has completely robotic floor cleaning/polishing. Both, also, have robots that do the basic landscaping maintenance, like mowing/edging. There is more, it is interesting to walk around and see all these infrastructure systems work. Feels, at least partially, like the promised future of sci-fi.

    • CrayonRosary@lemmy.world
      link
      fedilink
      English
      arrow-up
      4
      ·
      1 month ago

      Before ATMs, bank drive-throughs (the ones with multiple lanes for cars) had pneumatic tubes to send cash and checks to the bank teller, or receive cash.

      Some probably still do. I feel like I used one within the past 10 years.

      • MrShankles@lemmy.world
        link
        fedilink
        arrow-up
        3
        ·
        1 month ago

        They’re still in use at most banks where I live. Most hospitals use them too; way faster than dumbwaiters

      • magnetosphere@fedia.io
        link
        fedilink
        arrow-up
        2
        ·
        1 month ago

        I remember those! I wouldn’t be surprised if they’re still in use. I’ve never used the drive-through lane at my bank. I can deposit checks online by taking a picture of it (which still seems weird to me), and I use the ATM for everything else.

    • BearGun@ttrpg.network
      link
      fedilink
      arrow-up
      3
      ·
      1 month ago

      The factory i work at occasionally still uses them for delivering tests to the lab, pretty cool to hear them swish around in the pipes.

  • Semi-Hemi-Lemmygod@lemmy.world
    link
    fedilink
    English
    arrow-up
    106
    ·
    1 month ago

    Cars used to be cool. Every car company had some kind of sporty car, a couple cheap cars, a big luxury sedan and, a while ago, a station wagon.

    Now every car is an SUV or CUV. Sedans are getting phased out. Cool sports cars don’t make money so they don’t make them. People don’t buy station wagons so they don’t make them. And they’re pushing big, angry trucks on everyone.

    • Varyag@lemmy.dbzer0.com
      link
      fedilink
      English
      arrow-up
      20
      ·
      1 month ago

      This, so much this. As a car enjoyer, seeing cars slowly mutate into giant bloated expensive iPads on wheels is painful. I don’t want to buy any car made past 2010 and I know that won’t be a viable option soon.

      • Semi-Hemi-Lemmygod@lemmy.world
        link
        fedilink
        English
        arrow-up
        21
        ·
        1 month ago

        In the last episode of The Grand Tour Clarkson said that he’s done with cars because they’ve become appliances, and it’s no fun reviewing microwaves.

    • shalafi@lemmy.world
      link
      fedilink
      English
      arrow-up
      12
      ·
      1 month ago

      And we can’t get small trucks due to a loophole in EPA regulations. I just want something like an old-school Ranger, light, easy on gas, two jump seats in the back for the kids.

    • helvedeshunden@lemmy.world
      link
      fedilink
      arrow-up
      9
      ·
      edit-2
      1 month ago

      I’d take it even further: Cars used to be cool - in the 50s to late 60s. Modern cars look so bloody bland in comparison. I’m sure there were duds as well, but the models that show up in period pieces look way cooler than anything we have today.

    • LovableSidekick@lemmy.world
      link
      fedilink
      arrow-up
      8
      ·
      1 month ago

      The engine compartment of a really old car, say pre-1970s, is almost comically empty. Anything newer has so many ducts and hoses you can’t see the ground.

      • Semi-Hemi-Lemmygod@lemmy.world
        link
        fedilink
        English
        arrow-up
        5
        ·
        1 month ago

        I’d say a hatchback is a sedan with the trunk/boot removed, while a station wagon has the trunk/boot extended to the roofline. Hatchbacks would end up shorter than the sedan or wagon version of cars.

      • naught101@lemmy.world
        link
        fedilink
        arrow-up
        3
        ·
        1 month ago

        All the station wagon I ever owned I could comfortable sleep in the back of, with a partner. Hatchbacks are way too short.

    • Aeri@lemmy.world
      link
      fedilink
      arrow-up
      6
      ·
      1 month ago

      I’m tired of fuckin hatchbacks, I just want a regular car, not an SUV, not a truck, just, a fucking car car.

    • SkunkWorkz@lemmy.world
      link
      fedilink
      arrow-up
      1
      ·
      1 month ago

      It’s because people want a big boot. In Europe hatchbacks/cross overs are favored over sedans for that reason. And people just don’t like the look of a station wagon/estate car. Only the luxury brands still make sedans.

  • QuadratureSurfer@lemmy.world
    link
    fedilink
    English
    arrow-up
    103
    ·
    1 month ago

    Disney lost their old camera tech used to make a “yellow screen” with sodium vapor lights.

    It’s actually better than a green screen because the yellow light is so specific that even if you remove that particular frequency of light, everything else still looks fine. You can do all sorts of things that would normally be very difficult to pull off with any of our green screen tech (like drinking water in a clear bottle or wearing a rainbow dress).

    https://www.youtube.com/watch?v=UQuIVsNzqDk

    • brygphilomena@lemmy.world
      link
      fedilink
      arrow-up
      8
      ·
      1 month ago

      Considering LEDs are so good at producing a very tight wavelength, I wonder if this could be replicated with more energy efficient lamps.

      Or if non visible spectrum lights can be used to make similar alpha channel masks that don’t affect lighting the scene.

      • pfjarschel@lemmy.world
        link
        fedilink
        arrow-up
        28
        ·
        edit-2
        1 month ago

        A laser, maybe, but definitely not LEDs. Vapor/gas lamps produce the narrowest frequency bands possible, because it comes from very well defined atomic transitions (Hz range). LEDs produce frequency bands with widths in the GHz/THz range, while semiconductor lasers can maybe reach KHz if they are really good. So, unfortunately, for this type of applications, vapor lamps would probably still be needed.

        Source: I work with lasers and spectroscopy.

        Edit: very good idea about using non-visible light!

        • QuadratureSurfer@lemmy.world
          link
          fedilink
          English
          arrow-up
          2
          ·
          1 month ago

          Is there some filter that you could put up over the LEDs that would block everything but a very narrow frequency of light?

          • pfjarschel@lemmy.world
            link
            fedilink
            arrow-up
            2
            ·
            1 month ago

            Well, one possibility is using something known as Fabry-Perot filter. It allows an extremely narrow frequency to pass, due to multiple reflections and interferences inside the material. Put the light source material within this filter, and you get a laser. That’s essentially the main difference between a led and a semiconductor laser. The filter makes only a narrow band of the emission be “stuck” there, creating a feedback effect that eventually tends to infinity, and a good chunk of that power passes through the filter reflectors, which are intentionally not perfect.

            Other than that, I don’t think there is a filter that could be as narrow as the line emission from vapor lamps. Maybe using metamaterials, but a laser would be so much cheaper and easier. A vapor laser would certainly get the job done, but they are large and hard to maintain.

  • Everett@reddthat.com
    link
    fedilink
    English
    arrow-up
    93
    ·
    edit-2
    1 month ago

    In the near to mid future, I think an answer to this question are Internal Combustion Engines. I love electric vehicles and look forward to the tech improving. But the sheer coolness factor of moving a large machine through perfectly timed and calibrated explosions is tough to beat.

      • Cris@lemmy.world
        link
        fedilink
        English
        arrow-up
        2
        ·
        1 month ago

        Thoughts on motorcycles? Totally fine if you really don’t like them either, I’m just curious :)

        • Count Regal Inkwell@pawb.socialOP
          link
          fedilink
          arrow-up
          2
          ·
          1 month ago

          Grudging respect.

          I don’t like motorcycles either, but they are the “noble steed” of my country’s entire service industry, and being a worker in said service industry is a very sucky (and dangerous!) position to be in.

          So I don’t like bikes. But. I respect their riders. Their lives are hard and they are therefore stronger than I.

          • Cris@lemmy.world
            link
            fedilink
            English
            arrow-up
            1
            ·
            1 month ago

            Interesting, that’s very different in my country so I appreciate hearing your perspective!

            Hope you have a good one :)

    • reesilva@bolha.forum
      link
      fedilink
      arrow-up
      18
      ·
      1 month ago

      And the fact is “mechanic automated” system for me is what makes it even cooler. All you had to do to start is twist it a couple revolutions and bang, it works as long as you have fuel because everything simply works. Of course, today you have electronic fuel injection and so one, but if you want you can make it works just with a lot of metal to do the right parts.

      Man, I’ll miss combustion engines (but I hope its use ends ASAP because planet can’t wait anymore)

      • spookex@lemmy.world
        link
        fedilink
        arrow-up
        0
        ·
        1 month ago

        That’s why I kinda like my carburated 2-stroke motorcycle.

        Needs just 3 wires from the engine to work and 1 to shut it off. Weighs just around 100kg and will propel me to 90km/h with just a 50cc cylinder.

        Not to mention the smoke, sound, and the narrow powerband, just love that feeling.

    • waz@lemmy.world
      link
      fedilink
      arrow-up
      15
      ·
      1 month ago

      As a subset of this, the fact that carburators worked as well as they did, until we had the technology to invent the simpler fuel injector, I think is pretty cool.

      • Captain Aggravated@sh.itjust.works
        link
        fedilink
        English
        arrow-up
        4
        ·
        1 month ago

        Constant velocity carburetors blew my mind when I learned how they worked, and I got the funniest introduction to them.

        I had an Aprilia RS-50 motorcycle which had a slide-type carburetor. Instead of a coin-in-a-pipe throttle, this thing basically had a portcullis across the intake. Pulling on the throttle cable pulled the slide upwards making the aperture/venturi larger, allowing in more air, while also lifting a needle up out of the jet to allow more fuel in. It’s a 2-stroke race bike, so you could easily bog down the engine if you opened the throttle too fast.

        Then I bought a Ninja 250F, which has constant velocity carbs. Which also have a slide, AND a butterfly valve. The butterfly valve is operated by the throttle cable to control power. The slide is vacuum powered from the engine, and opens and closes the venturi to keep the air velocity through the carburetor constant, in order to keep the suction at the jet constant. It also has a needle in the main jet which it lifts along with the slide, so the needle’s taper meters the fuel mixture for the amount of air going through the carb. This inherently compensates for air density; if the air is less dense the vacuum mechanism can’t pull the slide open as far so the slide doesn’t open as far, and neither does the needle valve. So it automatically maintains the mixture.

        Which is why using constant velocity carburetors on the Rotax 912 engine is such a brilliant idea. A carbureted airplane engine with no cockpit mixture control.

        • spookex@lemmy.world
          link
          fedilink
          arrow-up
          1
          ·
          1 month ago

          RS50 is such a fun bike, and I know the pain with the carb, I have to ride mine uphill, also, just replaced the 12mm flat slide carb with a 17.5mm round slide, runs quite nice

          • Captain Aggravated@sh.itjust.works
            link
            fedilink
            English
            arrow-up
            1
            ·
            1 month ago

            I had one of the very few of them in North America. I don’t think they ever imported them at any great scale. I bought mine used, and it was obviously used as a track bike. It had a cylinder kit that took it up to about 72cc, the damn thing could do 70.

    • Dragon Rider (drag)@lemmy.nz
      link
      fedilink
      English
      arrow-up
      7
      ·
      1 month ago

      Drag disagrees. If you want transportation with fire, ride a dragon. No need to pollute the earth. The emissions make it uncool, just like the ridiculous Mad Max cars.

    • Gil Wanderley@lemmy.eco.br
      link
      fedilink
      arrow-up
      2
      ·
      1 month ago

      I never knew the complexity of ICE until watching the Garbage Time YouTube channel. They repair old cars (and sometimes break them to fix them later) and show the whole process, but do it as a hobby, so it’s all for entertainment.

      • frezik@midwest.social
        link
        fedilink
        arrow-up
        5
        ·
        1 month ago

        It won’t. Hydrogen has terrible efficiency even when fuel cells are in the pipeline. Putting it in an ICE only makes it worse. It’ll have some racing applications, but that’s it.

    • Trainguyrom@reddthat.com
      link
      fedilink
      English
      arrow-up
      1
      ·
      23 days ago

      Whenever I hear a running hit and miss engine it brings a smile to my face, similar with small stationary steam engines. There’s a club in Baraboo WI that does a big meetup once a year where there’s just tons of early tractors and stationary engines powered by all sorts of different types of combustion with all sorts of creative new engine designs that stopped being viable around the time of the first world war. I haven’t been able to go most years but it’s really incredible to see so many wonky engines wirring and popping and hissing and clanking around, all while struggling to reach the performance of a present day lawnmower (and not a good one at that)

  • Karcinogen@discuss.tchncs.de
    link
    fedilink
    arrow-up
    66
    ·
    1 month ago

    Automatic watches and grandfather clocks. The way they kept track of time using only mechanical principles is crazy. How does my automatic watch recharge itself using only the movement from wearing it and keep accurate track of time. Grandfather clocks are cool because they’re so power efficient.

    • vaionko@sopuli.xyz
      link
      fedilink
      arrow-up
      2
      ·
      1 month ago

      They are very cool indeed. And the fact that you can have a century old watch on your wrist and it’s just as useful as a modern one. In fact I’m wearing a watch from the 50s right now!

  • Adderbox76@lemmy.ca
    link
    fedilink
    English
    arrow-up
    63
    ·
    1 month ago

    Oh man…I have an entire ten page paper on the go about this topic and it just keeps growing. One day I’ll publish it in a blog or something, but for now it’s just me vomiting up my thoughts about mass market manufacturing and the loss of zeitgeist.

    The examples that I always use are a) Camera Lenses, b) Typewriters, and c) watches.

    Mechanical things age individually, developing a sort of Kami, or personality of their own. Camera lenses wear out differently, develop lens bokehs that are unique. Their apertures breath differently as they age No two old mechanical camera lenses are quite the same. Similarly to typewriters; usage creates individual characteristics, so much so that law enforcement can pinpoint a particular typewriter used in a ransom note.

    It’s something that we’ve lost in a mass produced world. And to me, that’s a loss of unimaginable proportions.

    Consider a pocket watch from the civil war, passed down from generation to generation because it was special both in craftsmanship and in connotation. Who the hell is passing their Apple Watch down from generation to generation? No one…because it’s just plastic and metal junk in two years. Or buying a table from Ikea versus buying one made bespoke by your neighbour down the street who wood works in his garage. Which of those is worthy of being an heirloom?

    If our things are in part what informs the future of our role in the zeitgeist, what do we have except for mounds of plastic scrap.

    • chrizzowski@lemmy.ca
      link
      fedilink
      arrow-up
      11
      ·
      1 month ago

      Old camera lenses are awesome. I’ve got some steel and glass rokkors that are beautiful. They render in such a wonderful way too, so painterly. They have thorium in the glass! Not enough to be sketchy to use but something that obviously isn’t done anymore. Bonus points that they can be fixed with a hammer.

      Old camera stuff in general is subjectively cooler. The leaf shutters in my 4x5 lenses are incredible little machines. Film in general is cooler than whatever sensor the latest and greatest has. Actual bits of silver suspended in emulsion, with colour filters and dye couplers that react in development. There’s a great three part video on YouTube breaking down Kodak’s manufacturing process. It’s mind boggling that stuff even works. Ohhhh and actually darkroom optical prints! Don’t get me started there!

      I’m going to develop some rolls I think. Got me in the mood.

      • Adderbox76@lemmy.ca
        link
        fedilink
        English
        arrow-up
        2
        ·
        1 month ago

        I have a couple of 80s Rokkors that I use with a speedbooster on my lumix g9, a 50mm and a 35mm. Despite having to do some math in terms of converting things like focal length, etc… because of the adaptor, It’s WELL worth it.

        • chrizzowski@lemmy.ca
          link
          fedilink
          arrow-up
          2
          ·
          1 month ago

          Rokkors here as well! I still shoot them mostly with film, but I’m tempted to get an adapter for my Fuji. Don’t love the conversions though, stuck in my ways with focal lengths and it’s just weird when a 28 becomes a 42!

    • upandatom@lemmy.world
      link
      fedilink
      arrow-up
      7
      ·
      1 month ago

      Just wanted to say thank you for writing this. Very cool take, that was so well written to get us on board for how and why “that old junk” has personality that is being lost.

      Also

      Damn.

    • Bruncvik@lemmy.world
      link
      fedilink
      arrow-up
      3
      ·
      1 month ago

      Great post! I was thinking about it the other day. I have a Citizen wrist watch from the 60s from my grandfather. It looks like new and functions well (mainly because of its self-winding mechanism). I also have a high-end Garmin watch, which from my personal experience lasts about 2 years, so I decided to start treating modern watches like the junk they are: get the cheapest possible that still has the features I want, because I’d be replacing it in two years’ time anyway.

      I also have an old mechanical typewriter. The drum doesn’t move on the A key, so I’m used to hit the space bar whenever I type an “a”. It moves the drum slightly more, which is something I always notice when I read pages typed on other typewriters. And don’t get me started on the font. No computer can recreate the idiosyncrasies of a good typewriter.

      Damn, now I got all nostalgic again. If you excuse me, I’ll be in the attic, hammering away on my Consul…

    • dumples@midwest.social
      link
      fedilink
      English
      arrow-up
      3
      ·
      1 month ago

      My house is decorated with either items from the antique store or from IKEA. There are reasons for both but you need to have unique and mass produced things. We have turned too much for the mass produced

  • Cris@lemmy.world
    link
    fedilink
    English
    arrow-up
    60
    ·
    1 month ago

    Pop up headlights! Way cooler that way. I’ve heard a couple reasons given for why they stopped being a thing, but one of them is that they were considered too unsafe for pedestrians-

    Which is a fucking crazy though when you consider what we now blindly accept in automotive design with respect to pedestrian safety 😅

    • nicerdicer@feddit.org
      link
      fedilink
      arrow-up
      19
      ·
      1 month ago

      Yes. I’d rather smash my femur at a pop up headlight while lounching over the engine hood than being dragged underneath an SUV street tank and being squashed.

      • Cris@lemmy.world
        link
        fedilink
        English
        arrow-up
        9
        ·
        1 month ago

        Yep! The height and slope of the car’s front end is actually one of the leading predictors of health outcomes for pedestrians involved in motor vehicle accidents

        https://youtu.be/YpuX-5E7xoU?si=xLLhl4Gb-Yt6lmvh

        Now please give me back my cute flippy headlights 🥹 they make me happy and they’re not even up during the day when you’re most likely to encounter pedestrians!

        • PraiseTheSoup@lemm.ee
          link
          fedilink
          arrow-up
          7
          ·
          1 month ago

          I drove a '94 Ford Probe for awhile, it was already 15 years old when I bought it, so I had been hearing stories about the shoddy reliability of flip up headlights for years at this point. Imagine my surprise when I never had any issues with them then, even while living in northern Minnesota. I remember one time after a particularly bad ice storm, turning them on and watching them shatter the ice on my hood and send pieces flying while popping up just the same as always. I loved that car and wish I’d had the money to keep it going.

        • KingOfTheCouch@lemmy.ca
          link
          fedilink
          arrow-up
          1
          ·
          edit-2
          1 month ago

          Ah, but at night is probably when you are more likely to actually hit a pedestrian. I wonder if the stats back up that intuition…

          Edit: also, yes pop up headlights are way cooler.

    • toynbee@lemmy.world
      link
      fedilink
      arrow-up
      1
      ·
      1 month ago

      Disregarding the safety comments (which should not be disregarded) purely for the purposes of this conversation, in older cars the vacuum tubes that operated the lights would frequently fail, meaning that the lights wouldn’t deploy even when desired.

      • toddestan@lemm.ee
        link
        fedilink
        arrow-up
        4
        ·
        1 month ago

        That was revised in slightly newer cars, where the vacuum lines from the engine were required to hold the headlights closed. So when the mechanism inevitably failed, you had permanently deployed headlights until/if it was repaired.

        • toynbee@lemmy.world
          link
          fedilink
          arrow-up
          2
          ·
          1 month ago

          Huh, never knew. My sole exposure to this was one quite classic car. Thanks for the information!

  • ikidd@lemmy.world
    link
    fedilink
    English
    arrow-up
    55
    ·
    1 month ago

    The internet?

    Web 1.0 and even before was way cooler than this corpo bullshit web we have now.

    • mudstickmcgee@sh.itjust.works
      link
      fedilink
      arrow-up
      14
      ·
      1 month ago

      Even the corp pages back in the day where cooler. I remember going to the Warnerbrother webpage to play some Daffy duck game they had. Same with cartoon network’s page and probably a bunch others I can’t remember. It was more passion than profit.

    • dotslashme@infosec.pub
      link
      fedilink
      English
      arrow-up
      3
      ·
      1 month ago

      You could try Gemini or gopher web, it reminds me a lot of web 1.0, both style and community feel.

    • blady_blah@lemmy.world
      link
      fedilink
      arrow-up
      1
      ·
      1 month ago

      I feel like you don’t actually remember what web 1.0 was like. Or even bbs’s. They… kind of sucked. I mean they were great for the time, but compared to the internet of today, pathetic.

      • ikidd@lemmy.world
        link
        fedilink
        English
        arrow-up
        7
        ·
        1 month ago

        The funny part of this comment is that when I was a teenager, I started and ran one of the largest RBBS systems in Canada with about 40 USR modems, and helped out on a couple more big ones like Rusty and Edie’s in the US. I also set up one of the first Echomail and Fidonet nodes in the country, and was a very early adopter getting usenet links working via RBBS. I loved that time, it was exciting and new , and western as hell.

        So I’m pretty sure I know exactly what I’m talking about.

        • NιƙƙιDιɱҽʂ@lemmy.world
          link
          fedilink
          arrow-up
          3
          ·
          1 month ago

          For real. It certainly wouldn’t hit the same these days - there are reasons these things fell to the wayside - but back in the day? God damn that shit was cool.

  • WoodScientist@lemmy.world
    link
    fedilink
    arrow-up
    54
    ·
    1 month ago

    Any mechanical regulation process that used to be handled by actual machine parts. Think of the centrifugal governor, this beautiful and elegant mechanical device just for regulating the speed of a steam engine. Sure, a computer chip could do it a lot better today, and we’re not even building steam engines quite like those anymore. But still, mechanically controlled things are just genuinely a lot cooler.

    Or hell, even for computing, take a look at the elaborate mechanical computers that were used to calculate firing solutions on old battleships. Again, silicon computers perform objectively better in nearly every way, but there’s something objectively cool about solving an set of equations on an elaborate arrangement of clockwork.

      • Nibodhika@lemmy.world
        link
        fedilink
        arrow-up
        7
        ·
        1 month ago

        He’s not talking about punch card programming, that’s way more advanced and requires a Turing machine, what he’s talking about is computers as the term was using before what you would think as a computer existed.

        The example in the video is for the computer on a cannon in a battleship. If there wasn’t a computer you would need to adjust the angle and height of the cannon, but that’s not something a human can know, what humans can know is angle to the ship and the distance to it, so instead you put two inputs where a human inputs that and you translate that into angle/height. Now those two would be very straightforward, essentially you just rename the height crank to distance. But this computer is a lot more complex, because wind, speed, etc can affect the shoot, so you have cranks for all of that, and internally they combine into a final output of angle/height to the cannon.

    • Arghblarg@lemmy.ca
      link
      fedilink
      arrow-up
      10
      ·
      edit-2
      1 month ago

      Someone showed me a record turntable with what must have been a centrifugal governor! What an ingenious device. (I got the impression from him this was unusual for a turntable, at least…)

      • Count Regal Inkwell@pawb.socialOP
        link
        fedilink
        arrow-up
        1
        ·
        1 month ago

        I was under the impression that all wind-up turntables (I.e.: from the shellac records and steel needles and mechanical reproducers era) were using mechanical governors

        Maybe I’m wrong though.

    • dmention7@lemm.ee
      link
      fedilink
      English
      arrow-up
      10
      ·
      1 month ago

      To add, there is something about those old 40s and 50s era technical films like you linked that is just so… I don’t what exactly it is, but I find them fascinating and genuinely informative, even though they are explaining tech that is decades obsolete.

      It’s pretty awesome that they are still available 70+ years later in excellent quality!

    • traches@sh.itjust.works
      link
      fedilink
      English
      arrow-up
      5
      ·
      1 month ago

      H model C-130s, the ones with the 4 square blade props? The engines and props are mechanically governed. There are electronic corrections applied, but the core of the systems are purely mechanical. Still flying.

      Source: former flight engineer on them.

    • Fondots@lemmy.world
      link
      fedilink
      arrow-up
      3
      ·
      1 month ago

      Centrifugal governors are possibly one of the origins of the phrase “balls out” or “balls to the wall” (although many say “balls to the wall” has to do with the ball-shaped handles on old aircraft throttle levers)

      Also somewhat similar to governors are centrifugal switches, which are used in just about anything with an electric motor to disconnect the motor from a capacitor which gives the motor a little extra juice to get it going (I like this video for an explanation of how they work)

      • WoodScientist@lemmy.world
        link
        fedilink
        arrow-up
        2
        ·
        1 month ago

        I didn’t know that was a thing. Thanks! I’m honestly surprised some MBA bean counter hasn’t replaced those with a chip of some sort by now. Really cool!

  • superkret@feddit.org
    link
    fedilink
    arrow-up
    49
    ·
    edit-2
    1 month ago

    Bicycle shifters.

    The first iteration that could be operated without stopping was the Campagnolo Cambio Corsa.
    To shift, you had to reach behind you, where there were 2 levers.

    The first one loosened the rear axle so it could move freely back and forth in the dropouts.
    The second one had an eyelet you could use to move the chain sideways.
    You put the chain on a different cog, and the rear wheel jumped forward or back due to the changed chain length.
    Then you tightened the rear axle again.

    It’s terrifyingly beautiful:

  • I Cast Fist@programming.dev
    link
    fedilink
    arrow-up
    43
    ·
    1 month ago

    Ships’ sails. I mean, I know some small vessels still use them, but look at any paintings from 1500s-1800s and tell me those huge white pieces of cloth don’t look cool.

    • Bytemeister@lemmy.world
      link
      fedilink
      English
      arrow-up
      5
      ·
      1 month ago

      They definitely have a look, although I like the sleek, almost solar punk look of modern sails.

      We went from bedsheets that get blown around to clean and optimized vertical wings.

  • pastermil@sh.itjust.works
    link
    fedilink
    arrow-up
    42
    ·
    edit-2
    1 month ago

    A nixie tube is a bunch of tiny lightbulbs shaped into numbers in a single pack with different pins each turning on a number.

    Clearly the modern number display is better in many ways, but you were asking for coolness.