• cmhe@lemmy.world
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    2 days ago

    Yes, but only in one direction and if you use UDP instead of TCP. Also your MTU needs to be small enough for the packages to fit between the blades of the fan, otherwise that causes package fragmentation.

    /s

  • Narauko@lemmy.world
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    2 days ago

    Yes, but the tailwind becomes a headwind on the way back to the router so you won’t see any actual speed changes. Putting a fan on both ends will cancel each other out too.

    You need to change all the gaseous air out for either liquid or a solid as waves propagate faster through them. You should start with filling your house with liquid oxygen as a nice half step so you still have something to breathe easily, as solids are a bit more tricky.

    • svenkw@lemmy.world
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      2 days ago

      The general idea is correct, but since we’re dealing with electronagnetic waves, they travel slower in any medium. So pumping out all the air of the room would technically make your wifi faster.

      Liquid oxygen has (I think) a refractive index of about 1.2, so it would make the signals 20% slower (still very fast)

        • LifeInMultipleChoice@lemmy.world
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          2 days ago

          Dude waited 11 months of lurking and not posting or commenting anything, and breaks their silence with that attractive string of knowledge. I’ve got mad respect for them.

          • ChaoticNeutralCzech@feddit.org
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            2 days ago

            I’m a nerd too but come on, he’s replying to an obvious joke with high school physics. There are more layers, do you want a more pedantic teardown?

            • Most likely, the “Wi-Fi speed” the Reddit poster needs to improve is the data rate, not latency.
            • The data rate can be improved significantly by increasing RSSI with a better physical setup, WDS, higher power etc. However, if the rate is too low at full bars, the bottleneck is the ISP plan or hardware specs.
            • The latency cannot really be improved without changing hardware or software, as the highest impact one can influence is in processing by the router and device. Some settings such as DNS cache size can improve latency in some cases with some downsides.
            • LifeInMultipleChoice@lemmy.world
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              2 days ago

              Meh, we all have our personalities. A lot of people hate my personality, but I just figure it’s best to assume everyone on the internet is a stranger that could be a potential friend. If they answer things blunt or love to extrapolate with excruciating detail… Who am I to judge. I just make jokes and hope they don’t accidentally make someone feel bad. Like I really wanted to reply to yours saying that you were just trying to show off and get me to call your words attractive as well ; ) haha.

    • BastingChemina@slrpnk.net
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      2 days ago

      What if i put the router in front of an open window, open the window behind my computer and put a fan between the two ?

  • Rooty@lemmy.world
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    2 days ago

    No, the fan will blow the packets all over the place, which is fine for UDP, but any TCP/IP connection will suffer. Place the fan in front of the router so that the blades will catch any dropped packets and throw them back into the datastream.

  • brown567@sh.itjust.works
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    3 days ago

    Yes, but then it’s slower for your computer to talk back to your Wi-Fi, so it ends up cancelling out

      • Gadg8eer@sh.itjust.works
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        1 day ago

        RoRo stations. Roll on, roll off/out. The internet isn’t a highway, it’s a series of bullet trains in tube tunnels.

        I wonder if anyone thinks OpenTTD would be more fun with a cyberspace theme? I know there’s a neon grid grf (mod)…

        Anyway, if this was a suitable solution for WiFi, we wouldn’t need wired connections. That said, you can cut open a drink can to turn a WiFi router’s signal into a focused beam using the aluminum, iirc.

      • Lag@lemmy.world
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        3 days ago

        We can streamline this by making the room into 2 small tunnels from the router to the PC. This way there will be less obstacles in the room. But we need to add leafblowers on each side with a boost button.

        • Opisek@lemmy.world
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          3 days ago

          What if we make the tubes really really small and wrap them in many protective layers to prevent other wind sources from messing with the signal.

        • affiliate@lemmy.world
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          3 days ago

          you could also hook into the router and wireless card of the computer to make each of them turn on the corresponding leaf blower whenever they’re sending something. of course you’d probably have to implement some kind of queuing system so only one blower is active at a time, but it will all be worth it for the speed gains

    • DogWater@lemmy.world
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      3 days ago

      Interestingly, this could be true and you could never find out experimentally iirc.

      I watched a veritasium video about the 1 way speed of light vs 2 way that talked about it.

      • antimongo@lemmy.world
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        2 days ago

        I watched the same video!

        I was right about to disagree and type “wait this only applies to light” but then I remembered: radio is light.

        Crazy to think about that!

        • DogWater@lemmy.world
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          It is nuts. It goes to show how far science goes proving things through deductions rather than direct observation. So much science is done that way.

          I think that there would be some infinite energy glitches if it was actually true that light was faster 1 direction than another, so I think the assumption is a good one. But still fun facts

  • Lord Wiggle@lemmy.world
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    2 days ago

    It’s not 1 way traffic. Signals go both ways. To increase your wifi speeds, have 1 fan blow from your router to your device and 1 fan from your device blow towards your router. Signals go faster in warm air so make sure to pump up the thermostat. It also goes faster with less CO2 in the air so make sure to open all windows (unless you own a Mac). Lower moisture in the air also improves speeds, so crank your AC on max. Also placing both your router and device in rice helps.

  • BenLeMan@lemmy.world
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    2 days ago

    Sort of a serious answer because I’m bored: You’re thinking of speeding up the air when what you should be thinking about is speeding up the waves. But then your waves are reaching you plenty fast already with latency being in the single digit ms range. Not much of a point in trying to accelerate that, really. You won’t notice anyway.

    If you feel like your internet connection via Wi-Fi is slow then the bottleneck is probably not with the Wi-Fi part of your network but the Internet Access Point behind it. Or even further down the line.

    Now this is based on the assumption that you are in a fairly typical network environment, i.e. using semi-current hardware with moderate, if any, electromagnetic interference in the area. If you’re living right next to a high voltage transformer station and using a router from 2008 then, yes, you’re going to have Wi-Fi performance issues.

    But in most cases, people complaining about “slow Wi-Fi” are actually suffering from Internet connectivity issues.

    Think of it this way: If you enjoy your McDonald’s from the local franchise but you can only get 100 burgers per hour from them (of course you need MOAR!) then upgrading your 320hp Camaro to a 400hp Mustang is not going to enable you to pick up appreciably more burgers from the drive through in the same amount of time.

    • Jezza@sh.itjust.works
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      2 days ago

      Not entirely true.
      In an apartment in the middle of a city, noisy neighbours can be a problem.

      In those cases, it’s best to jump to 5 GHz, and leave the 2.4 band alone.

      • BenLeMan@lemmy.world
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        2 days ago

        Except if you have an ECOVACS cleaning robot which refuses to work with modern 5GHz networks. I actually had to install a Wi-Fi bridge to get around that limitation; thankfully, I still had one lying around. Helped me get a better signal for my phone in the bathroom as well.

        But thank you for adding this information. Congestion due to interference from other networks (I guess that’s what you meant) can definitely be a factor as well. I guess that’s the problem with the notion of “normal” that I employed rather carelessly.

        Sidenote: the fact that your Wi-Fi still works in those conditions at all instead of shutting down goes back to pioneering research done by actress-cum-scientist Hedy Lamarr during WW2. Amazing woman.

        • dan@upvote.au
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          2 days ago

          which refuses to work with modern 5GHz networks.

          Companies that make IoT devices do this so they can save a bit of money. It lets them use lower end, cheaper wifi chips (or left over older-generation chips that they can buy at a discount). I’m not really a hardware person but apparently 2.4Ghz wifi radios are a lot simpler than 5Ghz ones. Apparently they’re also $2-$3 cheaper which adds up when you’re producing a lot of units.

          Also, the 5Ghz band differs per country. For example, some channels are authorized in the USA but not in Europe. Some companies stick to 2.4Ghz to avoid having to make anything region-specific.

    • lemonskate@lemmy.world
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      2 days ago

      There are plenty of things in a normal home that can cause serious signal attenuation (just installed new energy efficient windows? whoops! those IR blocking coatings severely attenuate microwave signals too). Poor AP placement is a very common cause of “slow wifi” and has nothing to do with your internet uplink.

      • BenLeMan@lemmy.world
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        2 days ago

        Again, you point out why “normal” is an iffy notion to begin with. Thank you for elaborating instead of just downvoting. 🙂

        Failing to fully utilize the existing antenna diversity options on modern routers/APs might be another common cause that comes to mind.

  • finitebanjo@lemmy.world
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    2 days ago

    The Wifi isn’t waves made of air, the wifi is waves of the electromagnetic spectrum, similar to visible light, and they travel faster than you can perceive.

    So no.

    But you can do something similar with a microwave oven. It’s just that any signal making it through the radiation of the oven would be disfigured and useless.

    • dukeofdummies@lemmy.world
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      2 days ago

      I mean, that was my first thought… but would there be a measurable difference?

      I mean lets be clear, with a fan you’re adding like 8 mph to something going 299,792,458 meters per second. You won’t notice anything.

      But like, vacuum vs glass vs glass moving half the speed of light, could be an interesting what if. Relativity is always where my mind glosses over in physics.

      • finitebanjo@lemmy.world
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        2 days ago

        Unless the air particles make real contact with the photons then you’re not adding anything to anything, and the ones that do will be deflected.

        Imagine a rock in space coming close to hitting a planet, or even entering a solar system at all. Similar scale.

        • styxem@sh.itjust.works
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          2 days ago

          I think it’s important to point out as well that there is a mesiarble difference between between the permittivity of free space and air. But to your point the difference is quite small: e_r air is 1.0006 whereas e_r freespace is 1.

          While temperature and pressure do have an effect on e_r air I don’t know enough to say that net movement of the particles in one direction would have a measurable effect. My instinct is no.

          Looks like lukewarm_ozone proved me wrong. https://lemmy.today/comment/13053868

    • GladiusB@lemmy.world
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      2 days ago

      Maybe if you made this vacuum encapsulated in a line. Surrounded by shielded metal and plastic.

  • Zaphod@discuss.tchncs.de
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    3 days ago

    Not inherently stupid question; they just don’t know that radio waves don’t travel through air but through space.

  • WalnutLum@lemmy.ml
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    3 days ago

    Yes but you have to put a slit in front of it so the wifi waves turn into wifi particles.

  • ✺roguetrick✺@lemmy.world
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    3 days ago

    Depends on the direction the fan is facing. If it’s blowing towards you, that increases air pressure in front of it, which means more things for photons to interact with and a lower speed of light, thus slower wifi. Away from you would decrease the pressure and result in faster wifi due to the increased speed of light. Theoretically at least. I don’t think this effect is measurable.

    Edit: thinking about it, the electromagnetic noise from a fan motor would likely be worse than the benefit. You might even be able to detect that

  • brown567@sh.itjust.works
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    3 days ago

    If you had a fan blowing out the window, it could slightly reduce the density of the air in your house, leading to a tiny increase in the speed of light through it, so that would make the waves technically faster, but by a vanishingly small margin

    It wouldn’t increase the bitrate of your router at all, so it wouldn’t make a difference, but the waves would be faster

      • With less matter for the photons to interact with, I assume the WiFi’s SNR would be improved. If fewer data frames need to be retransmitted at the link layer (WiFi), I figure the apparent bitrate at the IP level might actually be improved!

        Actually, I would not be shocked if WiFi itself adapts to conditions, e.g. by sending less data per frame with more error correction bits when SNR is already low.

        (Not a networking expert, I am just bullshitting.)