• cmhe@lemmy.world
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    1 day 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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    1 day 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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      1 day 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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          1 day 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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            24 hours 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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              24 hours 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.

  • 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.

  • 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 an throw them back into the datastream.

  • 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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          1 day 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

  • 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.

    • 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.

  • WalnutLum@lemmy.ml
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    2 days ago

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

  • silver_wings_of_morning@feddit.dk
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    2 days ago

    If it changes the air pressure, changing the refractive index, it will affect how fast the waves will travel. If you put it behind the router blowing towards the computer, does that increase the pressure? Then it would slow down I think. But this would only make a difference for a single wave packet; any real connection sends many packets and would be limited by the frequency of packets sent.

  • Zaphod@discuss.tchncs.de
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    2 days ago

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