• cmnybo@discuss.tchncs.de
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    1 个月前

    Wireless power sounds like and RFI nightmare. It will never match the efficiency of a cable either.

    • KairuByte@lemmy.dbzer0.com
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      1 个月前

      I doubt anyone is under the impression that it is going to be as efficient as direct power. At least no one paying attention.

      Edit: The downvotes lead me to believe a not insignificant number of people don’t understand how energy works.

      • Somojojojo@sh.itjust.works
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        1 个月前

        Downvotes be damned: you’re right, imo. A wire just has less to worry about, and I’m sure most people would think the same. Most people.

      • 𝕸𝖔𝖘𝖘@infosec.pub
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        30 天前

        The downvotes lead me to believe a not insignificant number of people don’t understand how energy works.

        The number of people electrocuting themselves doing stupid stuff leads me to believe this, but these downvotes help solidify that lol

    • Ek-Hou-Van-Braai@piefed.socialOP
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      1 个月前

      Efficiency and outright performance isn’t always a priority.

      A lan cable outperforms a wireless Internet connection in every way, yet most people just use WiFi

      • Ghoelian@lemmy.dbzer0.com
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        30 天前

        Sure, but I’m not paying for every byte sent overy network, while I am paying for every kWh I use.

        That’s all beside the point though, this is just a fun diy project so who cares really.

        • Ek-Hou-Van-Braai@piefed.socialOP
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          29 天前

          I could argue that WiFi uses more power than LAN cables, so you’re paying to use WiFi

          The important thing is if it’s worth the price, paying 5$ extra per month in power might be worth it for a LOT of people

    • scarilog@lemmy.world
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      30 天前

      This method uses magnetic resonant coupling (vs inductive which is how wireless charging works on your phone). The difference is the transmitter and receiver are both tuned LC circuits that operate at their resonant frequency, which is why this works over the impressive range shown in the video. It would have efficiencies around 80% mark based on what I could find. But yeah for RFI, this would definitely be worse than something like normal Qi charging, which operates in the 100s of KHz, while this operates in the MHz. But I think the manufacturers page says this is FCC certified? So might be not too bad.

      • cmnybo@discuss.tchncs.de
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        30 天前

        FCC emission requirements are very lax below 30MHz, so something can pass FCC part 15 yet still jam the entire HF band.

    • Joelk111@lemmy.world
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      30 天前

      My speakers at home hum due to my Logitech Powerplay Matt, even with a ground loop isolator. It sucks. I was kinda surprised that it wasn’t an issue with this setup.

    • davidgro@lemmy.world
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      1 个月前

      It’s not - this dude doesn’t zap himself even once.

      It’s a good video though, showing how he integrated everything.

        • Defectus@lemmy.world
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          1 个月前

          I’ve seen his videos over the course of a couple of years. His skills have developed greatly over the years. One of his videos he created 3d printed speakers that seemed pretty good. Would love to try make them some day.

  • Burn1ngBull3t@lemmy.world
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    1 个月前

    Hell yeah, some DIY Perks on lemmy.

    Great quality video as always, even though the setup might be cumbersome to add peripherals in the long term.

    But still interesting !

  • Uninvited Guest@lemmy.ca
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    1 个月前

    What I’d like to know here is if this setup is continuously drawing maximum power or if the power usage only goes up when a device is within the magnetic grid.

    • lime!@feddit.nu
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      1 个月前

      it does say on the site for the device that it draws 100W, but in the video he says that there is a 10W minimum draw, so i’m assuming it goes up from there

    • Lemminary@lemmy.world
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      1 个月前

      And what their power efficiency is. Last time I checked they were at 60% but I’m wildly outdated on these things.

  • Lord Wiggle@lemmy.world
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    1 个月前

    Nice, enjoy your wireless nightmare.

    Once I had a wireless Corsair Keyboard which sometimes received input from someone else’s keyboard (it typed entire sentences on my PC). Corsair said this was impossible, yet somehow words appeared on my screen while only my keyboard was linked. A neighbor logged in to something using his email address and password and it appeared into my word document. Like, wtf!

    So I love my wires. I have no wifi, no wireless devices (except for my phone and game controllers) and I have no interference issues with anything (and I have a music studio in my living room with loads of synths).

    Just do some proper cable management. It’s really fun to do and gives a clean look.

    • scarilog@lemmy.world
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      30 天前

      Wireless peripherals and any wireless data transfer protocols are completely irrelevant to the content of this video, which is centred around wireless power transfer.

      Also wireless peripherals are pretty great, not sure what you’re on about.

      • CybranM@feddit.nu
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        30 天前

        Wireless mouse (with low latency) is one of the best hardware purchases I’ve ever made. Wireless speakers and screen seems a bit unnecessary though but damn cool that he made it all work

  • shortwavesurfer@lemmy.zip
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    30 天前

    Math, since it has a 10 watt minimum power draw, that would mean it would use 7.5 kilowatts per month just to have it turned on. Now at least where I live, that’s $1.11 extra.

    • vrighter@discuss.tchncs.de
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      1 个月前

      it also would have very publically been a huge failure. Tesla tended to ignore the science when he didn’t like it. It could not have possibly worked

    • MonkderVierte@lemmy.zip
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      1 个月前
      • + Wireless

      • - limited range

      • - horribly inefficient, increasing with distance

      So, there.

      • lime!@feddit.nu
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        1 个月前

        tesla’s idea was global wireless power. no idea what his efficiency numbers were though.

        • taladar@sh.itjust.works
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          1 个月前

          Are you somehow under the impression that just because it is “global” there are no transmitters and receivers and distance does not matter?

          • lime!@feddit.nu
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            1 个月前

            no. i don’t pretend to even begin to understand how the prototype at wardenclyffe was supposed to work. i do remember that it supposedly used the atmosphere as a transmission line, but whether that meant bouncing the signal off of it (meaning it was radio based) or somehow charging it (meaning it was static based) i couldn’t tell you.

        • MonkderVierte@lemmy.zip
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          1 个月前

          I mean you absolutely can communicate from Australia to USA with nothing but an old rusty bed frame and 5 watts of power. So there’s that. But not much more to do with that bit of non-ionising power.

    • Tattorack@lemmy.world
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      1 个月前

      We, today, understand how to power something wirelessly. The problem is it’s horribly inefficient.

  • Beacon@fedia.io
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    1 个月前

    Why is this a video and not an article? Makes me think it’s just bullshit

    • TheGrandNagus@lemmy.world
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      1 个月前

      It’s a YouTube channel that does high quality DIY projects, and explains the reasons behind the choices made.

      Why would this be an article as opposed to, y’know, a video? His job is to make YouTube videos.

      I don’t understand this obsession some on Lemmy have with shitting on hard-working creative types when they make something in video form rather than creating a blog and publishing articles.

      • Beacon@fedia.io
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        1 个月前

        I will quote my other reply:

        What their job is has nothing to do with my statement. If the only media reporting about a new technology is a video then that thing is significantly more likely to be bullshit

        • TheGrandNagus@lemmy.world
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          28 天前

          It’s not new technology you numpty.

          It’s not news. It’s not a scientific paper. Wireless energy transfer isn’t “bullshit”, it’s been an understood aspect of physics for a long time.

          Since you seem unable to grasp the concept, I’ll put it in bold and italics:

          This is a video of a guy doing a DIY project where he wanted to make his setup as wireless as possible. In the video he also goes over his thoughts and design considerations, and explains how the tech works for people who don’t already know.

          It is not new technology.

          It is not pseudoscience.

          It is a guy showing off his bespoke PC setup.

          It does not need an article or a blog post. He can post about it in any form he wants.

          Personally, I think showcasing this kind of thing in a video is much better than a wall of text. I want to see the process, the finished product, the tools used and how he used them.

      • Beacon@fedia.io
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        1 个月前

        What their job is has nothing to do with my statement. If the only media reporting about a new technology is a video then that thing is significantly more likely to be bullshit

        • MaggiWuerze@feddit.org
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          1 个月前

          It’s not reporting on a technology. DIYPerks is a channel about cool projects he does. He shows the build process and explains everything and usually provides plans to follow along

          • Beacon@fedia.io
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            1 个月前

            i.e. he is reporting about a technology. Again, if the only media reporting about a new technology is a video then that thing is significantly more likely to be bullshit

              • Beacon@fedia.io
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                30 天前

                Yes, you’re really the one here contributing to the topical discussion 🙄

            • MaggiWuerze@feddit.org
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              29 天前

              He is not reporting. What’s there not to get? It’s not a news outlet. He just says “I found this neat thing and will now build some insane project around it”. I’m sure if you actually went to look, you would find other sources that talk about the technology in detail and probably did so before he made his video

        • Shadowedcross@sh.itjust.works
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          1 个月前

          He goes into the downsides of the technology, which you would’ve known if you had watched it. He’s also a very well known, and reputable channel, so I don’t see any reason to not trust him.

          If you want more than just a video about an emerging tech then why don’t you provide an article on it, instead of expecting it from OP, who probably just wanted to post a cool tech video.

          • Victor@lemmy.world
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            1 个月前

            Not the point. The point is that if this is an attempt at reporting cool new tech usable by the masses, then it should be posted as written coverage. YouTube videos can easily be perceived as content churn rather than reputable sources of information.

            But if that wasn’t the point of the post by OP, we’re all good here.

            I think we’re all on the same side, looking at it from all angles. 🤷‍♂️

              • Beacon@fedia.io
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                1 个月前

                Nobody said it was, and is irrelevant. I will quote my other reply to explain the intended point:

                If the only media reporting about a new technology is a video then that thing is significantly more likely to be bullshit

          • Beacon@fedia.io
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            1 个月前

            What he goes into has nothing to do with anything. You don’t seem to understand my comment, it’s very possible that i worded it poorly, so I’ll reiterate:

            If the only media reporting about a new technology is a video then that thing is significantly more likely to be bullshit

        • Victor@lemmy.world
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          1 个月前

          Don’t worry, you have at least one person who understands what you mean. I definitely agree. 👍 If there’s no written coverage, the significance seems low/only for clout.

          • sucoiri@lemmy.world
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            1 个月前

            Yes, because it’s a maker on YouTube showing off a project he did? It’s a clickbaity title sure, but this isn’t a research paper showcasing a new technology. He’s using a dev kit to make something he thinks is cool. Fail to see the issue.

            • Victor@lemmy.world
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              30 天前

              because it’s a maker on YouTube showing off a project he did?

              No.

              Fail to see the issue.

              We’re not getting through properly—there is no issue. It’s all in the hypothetical purpose of the post by OP.

              If this was a way to announce a widely available thing, it would be more credible as an article than a YouTube video. That’s all.

              But this is fine as it is. I don’t think that was the purpose of the video or post. I think it was just a fun video. 👍

          • Beacon@fedia.io
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            1 个月前

            Thanks, it’s weird how some people are reacting to this comment. Is this their first day on the Internet? I’m not saying this device IS bullshit, I’m saying from a long history of experience that if the only 3rd party media you can find about a device is a video then that device is significantly more likely to be bullshit. It’s simple and clearly true.

            • Victor@lemmy.world
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              30 天前

              Yes. People are still down voting us. I think it’s hard to explain this concept or something. We’re not getting through. Oh well.

    • Echo Dot@feddit.uk
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      1 个月前

      Did you even watch the video? It’s a well-produced piece of content from a pretty well-known individual

    • comador @lemmy.world
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      1 个月前

      Because it is bullshit lol.

      Wireless efficiency is around 70%-75% max with something like that; EMF and RMF issues abound in any configuration without shielding, which this one has none of. I am surprised anything works.

      I don’t know about the rest of you, but I’m not willing to pay a 30% higher electrical bill for something like this.

      • exasperation@lemm.ee
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        1 个月前

        It wouldn’t be a 30% higher electrical bill overall. It would be 30% more for whatever power you’re using for this specific device, which, if it’s ordinarily 10W while in sleep and an average 100W while in use, and you use it 50 hours per week, or 215 hours per month, that’s a baseline power usage of 21500 watt hours in use and 5050 watt hours from idle/sleep/suspend. Or a total of 26550 watt hours, or 26.5 kWh. At 20 cents per kWh, you’re talking about $5.30 per month in electricity for the computer. A 30% increase would be an extra $1.60 per month.

  • chronicledmonocle@lemmy.world
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    30 天前

    Cool… I’ll stick with my wires that work every time and don’t have latency, batteries, and connection problems thanks.