• Allemaniac@lemmy.world
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    6 months ago

    The germans are really something else, what innovation hasn’t sprung from their imagination?

    • zaphod@sopuli.xyz
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      6 months ago

      No, Hertz never lived to see applications of his discovery. Guglielmo Marconi (was a fascist) started working on radio telegraphy in 1894, shortly after Hertz’ death.

      • latenightnoir@lemmy.blahaj.zone
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        6 months ago

        Oof! One of those moments which kinda’ make one wish there wasn’t an afterlife…

        Thank you for the tidbit, though, and fuck Fascists regardless!

        • kazerniel@lemmy.world
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          6 months ago

          One of those moments which kinda’ make one wish there wasn’t an afterlife…

          Tada, your wish is reality 🙃

              • latenightnoir@lemmy.blahaj.zone
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                6 months ago

                Look, I agree that from a purely logical standpoint, there ain’t nothing there. Personally, I believe the Universe is enough as far spiritual anchors go. But from an “I’m just breathin’ here” standpoint, I genuinely couldn’t care less. As long as people don’t hurt others out of their beliefs, they can knock themselves out believing whatever they so desire (*from a “Religion” perspective, to be clear!)

                To be perfectly honest, I also think it adds a bit of flavour to the world as long as it’s benign, I’ve had the immense luck of meeting a few religious people who took the good things out of The Text (generalising) and forged their own very personal relationship with the divine! They were the kind of people who took Free Will as being the highest imperative at the end of the day, people who would have fundamentally tried to respect existence even without the pre-existing framework. I’m thinking here specifically of my godfather (raised in an Orthodox household), who’s a middle-management kinda’ Priest (I don’t know the ranks, I’m sorry…).

                Having these examples in mind, I prefer all the more to live and let live, as long as they do so as well.

  • shutz@lemmy.ca
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    6 months ago

    Faraday, after demonstrating how moving a magnet through a coiled wire induced a current in the wire was asked by a visiting statesman what was the use of this.

    Faraday responded, “In twenty years, you will be taxing it”

    Similarly, at a demonstration of hot air balloons in France, Benjamin Franklin was asked “Of what use is this?”

    Franklin replied, “Of what use is a newborn baby?”

    • GraniteM@lemmy.world
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      6 months ago

      “Mr. Franklin, of what use is this hot air balloon contraption?”

      “You can take ladies up in it with a bottle of wine and a blanket and you know, they can’t refuse, because of the implication. Think about it. She’s floating up in the middle of the sky with some dude she barely knows. You know, she looks around, and what does she see? Nothing but open air. 'Ahhhh! There’s nowhere for me to run. What am I gonna do, say ‘no?’”

      • gandalf_der_12te@discuss.tchncs.de
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        6 months ago

        Funnily enough, Faraday seemingly also understood that the Electric Field only possesses a potential in the absence of changing magnetic fields. Because only in the absence of changing magnetic fields, the rotation of the Electric Field is zero, and only then it has a potential.

    • Reddfugee42@lemmy.world
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      6 months ago

      That last bit is me when dealing with people who “aren’t impressed” by today’s AI.

        • ameancow@lemmy.world
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          6 months ago

          I agree. But don’t really care if people use it, I just cannot stand when people wave it around like a new teddy bear that gives them a smug sense of superiority for… checks notes …using a product that someone is selling to let stupid people do easy things.

        • psud@aussie.zone
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          6 months ago

          AI tools are pretty good in Photoshop; they’re pretty good in copilot; Ukraine claims they’re good at guiding a drone to a Russian bomber (though they also hit decommissioned aircraft). I think you only see the use of less specialised AI used to generate low quality text and soulless images

      • Saleh@feddit.org
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        6 months ago

        The problem isn’t the “AI”. It is people praising its babbling as the solution for everything.

      • ameancow@lemmy.world
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        6 months ago

        I’m not impressed by today’s AI and I also fully understand that the tech is going to completely upend society and will eventually be a part of our picture of utopia, or our picture of actual hell on Earth.

        The people who are screaming it’s wild wonders and benefits are at least as closed-minded as the people who think we’re going to be able to put the toothpaste back in the tube. The actual direction this tech moves is going to be far more like the discovery of radio, in that at the time of it’s discovery and early implementation, the people then had no idea the implications down the road and we’re at the same point. Except the big difference and why this is contentious is that radio was far less dangerous to society broadly.

        Radio was a fundamental force that always existed around us, we learned to use it the way our ancestors used rivers and waters to move goods and people. AI is completely human-made and doesn’t exist without human engineering, so it’s not neutral, it’s a tool shaped by man to do whatever a man wants with it.

      • musubibreakfast@lemm.ee
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        6 months ago

        Here’s a little known fact that is not true, which will bring some nuance to the previous anecdote, Benjamin Franklin ate babies.

  • Tar_Alcaran@sh.itjust.works
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    6 months ago

    I mean, it would be some 25 years until the radio was invented. And Hertz’ machine required a 30kV spark on a 2.5m meter long antenna with 2 solid 30cm zinc spheres, and his transmission range was something like “barely down the hall”.

    Not the most practical method.

    • General_Effort@lemmy.world
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      6 months ago

      Fun fact: The german word for using a radio is “funken”; literally “to spark”. A radioman is, or was, a “Funker”. When you are talking over the radio, you are doing it “Über Funk”.

        • squaresinger@lemmy.world
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          6 months ago

          Pretty much the first type of commercially viable radio transmitter was the spark-gap transmitter (“Knallfunkensender” in German). It worked by charging up some capacitors to up to 100kV and then letting them spark. This spark sent a massive banging noise on the whole radio spectrum, which could then be turned into an audible noise using a very simple receiver. That was then used to send morse codes (or similar encodings).

          They went into service around 1900, and by 1920 it was illegal to use these because they would disrupt any and all other radio transmissions in the area with a massive loud bang.

          • General_Effort@lemmy.world
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            6 months ago

            “Knallfunkensender”

            Literally “Bang-Sparks-Sender”.

            Are you sure it’s because of the radio spectrum bang? I always thought it was because of the audible bang.

            If someone operated such a thing today, any guesses what the death zone for electronic devices would be?

            • squaresinger@lemmy.world
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              6 months ago

              It’s a broadband bang that can be heard across the whole spectrum. It becomes audible when listening to radio broadcasts.

              Regular radio transmissions are comparatively narrow band, allowing lots of simultaneous transmissions in the same airspace, each on its own frequency. The spark gap transistor is very wide band, so it basically sounds as if you are sending a bang sound across all radio frequencies at the same time.

              It wouldn’t destroy radio equipment, but the radio transmissions. It’s basically as if you’d use a radio jammer as a morse code transmitter.

        • General_Effort@lemmy.world
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          6 months ago

          It really is from “Funkentechnik”: “Spark technology”. I wonder how many people appreciate the post for the cute etymology and how many because it sounds funny.

          Good information for ham radio people, too. Hobby sounds too geeky? Just say you’re into Über-Funk-Parties.

      • ChaoticNeutralCzech@feddit.org
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        6 months ago

        At least physics will never get patched. The spark device with zinc spheres will always do that thing.

        FCC: And get you arrested

    • Crankenstein@lemmy.world
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      6 months ago

      Those practical methods would never have existed if not for Hertz’ experiments. Those were 25 years of other scientists, having seen that this new concept exists, refining his contraption into what eventually would become the machine that we know as a radio.

  • Avicenna@lemmy.world
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    6 months ago

    Imagine if he had to apply for funding

    “these waves have the potential to transform how we communicate and will likely find world wide usage”

    He would actually be right unlike all the other funding applications which are largely oversold.

    • Echo Dot@feddit.uk
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      6 months ago

      I mean it’s kind of bizarre that he couldn’t think of a practical application. We literally use invisible waves to communicate already, these ones move at light speed, how could that not be useful?

  • bier@feddit.nl
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    6 months ago

    If only he knew his discovery would lead to the worst car rental company he problem wouldn’t have published

  • gedaliyah@lemmy.world
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    6 months ago

    This may be an even better example than the positron. Originally a theoretical antimatter form of the common electron, with no practical application.

    Turned out to be a vital tool for medical imaging. If you or someone you know has ever had a PET scan, now you know what the P stands for.

    • Skullgrid@lemmy.world
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      6 months ago

      Not really, he’s not stealing something his dad made, using modern tech to smooth over the 60s parts and presenting it as his own invention.

    • hobovision@lemm.ee
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      6 months ago

      Planet Money has some really good episodes. Unfortunately, a lot of filler as well.

    • jollyrogue@lemmy.ml
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      6 months ago

      Oh yeah. No one appreciates blue sky research. We don’t know where the question will take us, which is why governments fund the research. They can take on the 0.1% chance something useful is created 20 years later.

  • yesman@lemmy.world
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    6 months ago

    If you think about it, almost all computer-technology is radio. Wifi, bluetooth, GPS, radar, and cellular are literally radio. Meanwhile everything else runs on transistor tech developed and refined… for radios.

    Our modern economy couldn’t exist if people like Hertz and Maxwell didn’t get to toy with their useless hobbies. But we can’t rely on the curiosity of the leisure class anymore. Basic research is expensive, necessary, and a public good. I’m afraid that the Trump regime has already spoiled the secret sauce that makes America the technology leader of the world.

    • markovs_gun@lemmy.world
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      6 months ago

      Even more than that, just proving Maxwell was right was a key stepping stone to all of modern physics. Maxwell, not Einstein, was the first to show that the speed of light is invariant, and Einstein’s Relativity was a framework for explaining how tf physics works if that’s actually true. Prior to Einstein, physists all just kind of assumed there was some flaw in Maxwell’s theorems to lead to this crazy speed invariance, but as the evidence just kept piling up in favor of Maxwell, they started having to wrestle with the uncomfortable thought that this could actually be true. In this sense, Hertz can also be thought of as an important step to Einstein and beyond, and almost all of our modern technology.

      • Randelung@lemmy.world
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        6 months ago

        It’s getting pretty drafty up here. Giants on shoulders of giants all the way down. I can’t even see the bottom anymore.

    • gandalf_der_12te@discuss.tchncs.de
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      6 months ago

      Two inventions:

      • Internet
      • Computers

      are independent of each other, but go together nicely.

      You could have an internet (sort of) without computers. Consider Teletypers, FM Radio broadcasts, or Telephone.

      • ragas@lemmy.ml
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        6 months ago

        an internet (sort of) without computers.

        Really? You mean like the … telephone network?

    • zaphod@sopuli.xyz
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      6 months ago

      Transistors were mostly developed for telephone systems (the ones with wires) as a replacement for tubes. And the modern tech used for radios is very different from that used for computers.

      • m0darn@lemmy.ca
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        6 months ago

        Ithink you could be more charitable in your reply. Transistors were developed to replace tubes in telephone systems… Okay but the tubes had been developed to where they were because of their usefulness in radio.

        And while computers don’t inherently rely on radio, it’s radio communication that’s taken computers from one in every office to one in everyone’s pocket. Right? The main thrust of the previous commenter is true.