• @ShittyBeatlesFCPres@lemmy.world
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    04 months ago

    Las Vegas in general is a testament to the hubris of humanity and an admittedly impressive technical feat. Does it even exist without the Hoover Dam?

    • @batmaniam@lemmy.world
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      04 months ago

      I don’t know about power, but Vegas is actually incredibly water efficient. Due to the way the water rights work with the Colorado river, they’re not allowed very much, but it doesn’t “count” if you put it back in. So nearly every drop they use is treated and put back (probably cleaner, tbh). Boggles the brain, but somehow it’s actually a fairly sustainable city. More than any other other major metro, in any event.

        • @batmaniam@lemmy.world
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          04 months ago

          Thrilled you asked! So yes: Treatment is always required, but the final destination of the treated water can vary. For instance, in a lot of places they may have municipal water TO a home or business, but that may be discharged to septic, as opposed to the river. Also in a lot of areas, water may be taken out of an underground aquifer (either by private well or a municipality) but when treated it may be discharged into a river or ocean. That can create problems because if you’re near the coast, the empty space in the aquifer may be filled by salt/brackish water that can lead to salinity rises in the aquifer. To solve that some places turn to “ground water recharge”, which is just a fancy way of saying “we built a big well to put it back in the aquifer”.

          Increasingly, you’re seeing some places essentially sell their treated water. Santa Rosa CA, for instance, built an entire pipeline that goes from their treatment facility to another municipality to be injected into their groundwater.

          So yes, everywhere treats it, but the final destination makes a difference. Las Vegas (or anyone else on the river) only gets credit for what goes back into the river, so any evaporation etc is a problem. It sounds trivial, but there is a reason those other strategies exist. It essentially doubles every pipe, limits where you can park a treatment plant etc. Vegas also does some great grey water re-use. That essentially means it doesn’t go “back” but can get used many many times, limiting the initial draw.

          Wastewater is funny because it’s far from rocket science, but the numbers to implement any of it get staggering very quickly.

          • @captainlezbian@lemmy.world
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            04 months ago

            Wastewater isn’t rocket science. It’s just harder and significantly more important. Every engineering discipline makes fun of the civils, but the fact is none of us are half as critical to modern life as them. Every benefit any of us claim rests on their backs. The flow of electricity is a civil engineering feat, the flow of water to and from our homes, businesses, and farms is a civil engineering feat (and critical to health), as is our transportation networks, our entire constructed environment, and even crazy and weird shit like controlling the location of critical rivers.

            • @sugar_in_your_tea@sh.itjust.works
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              04 months ago

              I actually thought about going into civil engineering in school, but I ended up really liking Computer Science instead. In high school, I was waffling between being a software patent attorney and a civil engineering attorney, but once I took some CS classes, I decided software patents suck and I really wanted to work with computers.

              I have a lot of respect for our civil engineers. My state is experimenting with a variety of civil engineering stuff, like paints for our highways (should help visibility in crappy winter conditions), alternative grass mixtures to cut water use (less engineering and more horticulture, but whatever), and expanding trains. I kind of wish I was involved with that, but I still really like my job, so I just follow that kind of stuff as a hobby. Bridges, trains, and tunnels rock.

              • @captainlezbian@lemmy.world
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                04 months ago

                Yeah in retrospect I wish I’d gone civil. It wasn’t offered at my school but I went industrial because I loved both engineering and psychology. Civil would’ve meant I did more good and got less poisoned by my career

            • @batmaniam@lemmy.world
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              04 months ago

              oh I’m not shortchanging it, I work in the field. It’s crazy how “simple” it is in concept and hard to deliver. But it’s on par with antibiotics with how many lives it’s changed. Like you said, it’s like a lot of civil stuff. A solid highway system, for instance. Just some dirt with fancy rocks on it right? Righhhhhhht?

              And don’t get me wrong, wastewater has tons of complications. Any plant is operated in equal parts science, engineering, and art. It’s a living, breathing, bioreactor. They’ve each got their own distinct personality.

      • DevopsPalmer
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        04 months ago

        Considering they are in a literal desert, they would have to be fairly sustainable to exist in the first place. Not saying it’s not super impressive, my dad lived out there when they were building up a lot of the expanded infrastructure and he has some cool stories about how he saw the desert on the outskirts disappear as they added in all the water and transportation stuff

    • prole
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      04 months ago

      It was also, literally, built by the mob

  • @root@precious.net
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    04 months ago

    Using the max power use of a video card to math this is ridiculous. It’s not at full TDP pushing this content. They aren’t playing max FPS 3D raytraced gaming, they’re playing videos.

    • @ByteJunk@lemmy.world
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      04 months ago

      What.

      The article says that, for the GPUs, they can have a “maximum power draw of 45,000 W at full tilt”.

      The 28 million W comes from the full system, and surely the massive displays, LEDs and eventually sound system makes up the bulk of that, the gfx cards are a rounding error…

  • Todd Bonzalez
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    04 months ago

    Wait, why do they need 150 GPUs for a 1.2 megapixel display?

    That’s less than 1080p!

    Who engineered this monstrosity?

      • Todd Bonzalez
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        04 months ago

        Ah, you’re right, that’s 1.2 megapixel for the exterior, and 132 megapixel for the interior.

        That’s a substantial increase, but it’s still the equivalent of about 16 4K screens, which absolutely does not need 150 GPUs!

        • @brbposting@sh.itjust.works
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          04 months ago

          Anything most likely driving factor here?

          Extreme resolution requirements, massive number of LED elements, real-time rendering and synchronization needs, complex content processing, load distribution and redundancy, future-proofing capabilities, fraudulent kickback scheme

    • @yggdar@lemmy.world
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      4 months ago

      They say there are 16 screens inside, each with a 16k resolution. Such a screen would have 16x as many pixels as a 4k screen. The GPUs power those as well.

      For the number of GPUs it appears to make sense. 150 GPUs for the equivalent of about 256 4k screens means each GPU handles ±2 4k screens. That doesn’t sound like a lot, but it could make sense.

      The power draw of 28 MW still seems ridiculous to me though. They claim about 45 kW for the GPUs, which leaves 27955 kW for everything else. Even if we assume the screens are stupid and use 1 kw per 4k segment, that only accounts for 246 kW, leaving 27709 kW. Where the fuck does all that energy go?! Am I missing something?

      • Todd Bonzalez
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        04 months ago

        Oh Jesus, there are 16 16K screens? I didn’t read that right at all. That’s completely superfluous. The Las Vegas Sphere is an affront to God.

        • @Cosmicomical@lemmy.world
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          04 months ago

          In the future there will be myths that we once had standards such as html but after we tried to build this sphere, god cursed us to use only incompatible proprietary protocols

      • Vanix
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        4 months ago

        This is a complete shot in the dark but could the huge power draw come from needing some intense industrial cooling/airflow stuff in/on the sphere?

        Edit: forgot a word

        • @empireOfLove2@lemmy.dbzer0.com
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          04 months ago

          The big power draw is because of the sheer amount of light it dumps out. You try lighting up 54,000 square meters of LED panel to a few hundred nits and see how much power it takes.

        • @Rai@lemmy.dbzer0.com
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          04 months ago

          complete shot in the dark

          Man, I wanna delay the stupid edgy joke I’m making but I can’t help myself

  • @xthexder@l.sw0.com
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    04 months ago

    I don’t know what they need so many GPUs for. There’s 16 displays inside, and the sphere itself has fewer pixels than even 1 of the internal displays. You could probably run the sphere off a laptop if you aren’t trying to do anything fancy.

    Maybe they plan on doing crazy live simulations on it or something. I can’t imagine what kind of displayed image would actually use all 150 of them. Nvidia A6000 cards are damn powerful.

    • shastaxc
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      04 months ago

      I guess the practicality of the decision depends on the finances. Did they actually buy the cards or were they gifted by nvidia for free advertising?

      • @xthexder@l.sw0.com
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        04 months ago

        It does seem suspiciously like they picked 150 completely arbitrarily to make the project sound impressive, when they could have easily done it with 20. I’m sure a bunch of people in the middle made a bunch of money off that transaction too. Or like you said, maybe this is Nvidia doing some guerrilla marketing

    • Yardy Sardley
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      04 months ago

      Probably have a few cards running the displays and the rest of them mining some sphere-themed memecoin

      • @xthexder@l.sw0.com
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        4 months ago

        My job has been to run things on GPUs for almost 10 years now. The only thing anyone practical is doing on that many GPUs is AI training, massive scientific simulations, or crypto mining. 1 or 2 of them is enough to run something like ChatGPT.

        Real-time graphics it turns out don’t scale well across multiple GPUs. There’s a reason SLI has gone away for consumer GPUs. At the current ratio, each of those $3000+ GPUs is only driving 8000 pixels (assuming each led puck is being used as 1 pixel, given their size). It makes no sense other than bragging rights

  • @Sorgan71@lemmy.world
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    04 months ago

    God you guys cant have any fun. Yeah it uses power but cant we have cool things once and awhile?

    • @visnae@lemmy.world
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      04 months ago

      Before the Sphere, the largest spherical building in the world (since 1989) was the Globe in Stockholm.

      On it they sometimes project stuff on, which seems to be a way cheaper and energy efficient way than adding a billion LEDs.

      Fun fact about the arena Globen, it’s actually the biggest piece in a art installation about our solar system, representing the sun. Pluto is about halfway up in Sweden.

      It’s also the home arena of Swedens national ice hockey team.

  • @AeonFelis@lemmy.world
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    04 months ago

    That article gets stuck so much and makes my (relatively high end) laptop’s fan scream so hard you’d think the website was designed for that kind of hardware.

    • @ashok36@lemmy.world
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      04 months ago

      Vegas is almost entirely powered by the hoover dam. It’s already pretty green as far as energy goes. The question will be where do they get their power from in a few years when lake mead dries up.

      • @HandwovenConsensus@lemm.ee
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        04 months ago

        That’s not true. The Hoover Dam contributes to Vegas’s power supply, but it’s nowhere near “almost entirely powered” by the dam, except in Fallout: New Vegas.

      • @Soggy@lemmy.world
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        04 months ago

        In addition to the other thing, dams have a dramatic and disastrous impact on the ecology in the immediate area and the entire riparian system they connect to. It’s “green” in terms of emissions but they’re still harmful and we should be phasing them out for lower impact alternatives as much as possible.

        • @rogue_scholar@eviltoast.org
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          04 months ago

          Should? Definitely, but let’s be realistic, we can barely get people off of coal and oil right now.

          In the world we live in, Dams have some of the lowest environmental impact compared to the other places we get our energy.

          So we probably shouldn’t be trying to phase them out while there are much more severe effects being felt from the other base load facilities.

    • @frezik@midwest.social
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      4 months ago

      There’s no such thing as “ASAP” for nuclear power. If you had the permits signed off today, it would take 10 years before a single GWh of new nuclear energy goes to the grid.

      Instead, maybe we shouldn’t build giant spherical advertising displays?

      • @GamingChairModel@lemmy.world
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        04 months ago

        There’s no such thing as “ASAP” for nuclear power

        Sure there is. It’s just that the P stands for “20 years from now.”

  • @Zachariah@lemmy.world
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    04 months ago

    Add a solar array and battery bank, a you might even have electricity left over. It’s in the desert after all.

      • @Jarix@lemmy.world
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        4 months ago

        9.818127340823 should be the pixel density if my numbers are correct.

        The numbers i was able to find(please correct if these numbers are not accurate)

        160,000 sqft display converted to inches 23040000 sq/inch

        16K x 16K resolution equals 15360 pixels x 15360 pixels So thats 235,929,600 pixels

        Various Notes.

        • a 55-inch 4K television, which has a pixel density of only 80.11ppi
        • iphone 12 - 360ppi
        • 14,000ppi MicroLED display is world’s densest, only 0.48mm across june 2019 approximately the size of a ladybug
          • @Jarix@lemmy.world
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            04 months ago

            Not even close to the worst pixel per inch though. That would be probably a drone array in the sky im guessing assuming they could be made to stay perfectly in sync, ppi could be as bad as you wanted it lol. This does make me wonder what the extreme limits of ppi can be and still be usable. You would probably need to be on the moon or in space to be in the ideal viewing position. Having to acount for the limitation of the speed of light to produce the picture on that “display” would be an impressive feat of engineering.

            Did you really build a dyson sphere just to build a bigger tv? Yes yes i did

            Pixel pitch takes into account viewing distance.

            The displays in the sphere are 16K displays. They look insanely better than your monitor from the ideal spot in the venue.

            Their display has 64x more pixels than yours.

      • @MonkderDritte@feddit.de
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        4 months ago

        Wait, the article says it’s “internal displays” but the picture shows images on the outside of the globe?

        • @Jarix@lemmy.world
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          4 months ago

          The article says

          Those GPUs power 16 internal displays, each with a resolution of 16K, alongside 1.2 million programmable LED pucks coating the exterior of the sphere.

          Did you literally stop reading mid sentence? Or are you just not able to read good?

        • @Dozzi92@lemmy.world
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          04 months ago

          It’s got both. It’s awesome. But it’s also owned by James Dolan, and he’s a douche. I say that as a big Rangers fan.

          • @neidu2@feddit.nl
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            04 months ago

            Never heard of him nor the sphere before. Excellent video that explains the sphere, made by an excellent YouTube.
            Excellent recommendation!

  • SunDevil
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    04 months ago

    “Capable of drawing 28,000,000 watts of power” doesn’t tell us anything. As was noted, it should’ve been given in megawatts (28 mW) or kilowatts (28,000 kW). Clickbait aside, how many kilowatt-hours (kWh) does it actually use?

    28 mW isn’t that much energy, relatively speaking. As of 2015, Forbes estimated LV uses 8000 mW on an average summer day.

    The potential is impressive. I doubt it pulls anywhere near that. Unless I did my math wrong, this seems sensationalist.

    • @Gsus4@programming.dev
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      4 months ago

      I don’t get it, are they implying that each GPU can draw 200kW? a home is like 10 max. Wtf is a gpu that can consume more power than 20 homes? Mine at home draws peak 300W…

      Each of those GPUs feature over 10,752 cores, 48 GB of memory and have a 300 W TDP, for a grand total of 1,612,800 cores, 7,200 GB of GDDR6 memory, and a potential maximum power draw of 45,000 W at full tilt (via Wccftech).

      ok, monster gpus, got it.

    • @Zeoic@lemmy.world
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      04 months ago

      Just Fyi, mW is milliwatts, and MW is megawatts. Agreed though, I doubt it draws that much day to day.

  • @InvaderDJ@lemmy.world
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    04 months ago

    It’s funny, I think Vegas is perfectly fine as the city of sin so things like this really don’t phase me. It was built on the idea of crime and excess.

    What does seem weird to me is how in a desert, why isn’t everything solar? The sun is their only natural resource besides sand. Every rooftop and parking lot and flat surface possible seems like it should be a panel.

    • @aidan@lemmy.world
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      04 months ago

      Vegas is surrounded by empty desert, they don’t need to use rooftops and parking lots

      • @fukurthumz420@lemmy.world
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        04 months ago

        even deserts host life. it’s kind of a ecological misnomer that we could just cover the deserts of the world in solar panels. that would have serious repercussions.

        • @aidan@lemmy.world
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          04 months ago

          What repercussions could covering a few acres more in the mojave with solar panels have?

        • @JasonDJ@lemmy.zip
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          4 months ago

          Also, the ocean is a desert with its life underground and the perfect disguise above.

    • @fatalError@lemmy.sdf.org
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      04 months ago

      Solar only works during the day. During night you need batteries which are not renewable. Mining lithium trashes ecosystems and we probably have enough for like 50 more years at this rate, cobalt is extracted through slave labour. And we’ve seen how well recycling works for other materials which are less complex. So all these renewables aren’t all that green in every aspect. Unless we solve the energy storage problem it isn’t as simple as putting up more panels.

      • Gormadt
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        04 months ago

        Sodium batteries (which are on the market now) are way more environmentally friendly than Lithium batteries.

        The materials are very accessible by comparison to Lithium batteries and they’re way more stable.

      • @frezik@midwest.social
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        4 months ago

        You know, I’m getting really sick of these comments where people think they know what they’re talking about and repeat a bunch of talking points about lithium.

        Lithium is not going to be the basis of a renewable grid. We need it for EVs because it’s the best Wh/kg that we have right now, but we don’t care so much about weight for grid storage. Cost/kg is the main measure we care about there (though there are some other considerations in specific conditions). We already have tech being deployed in the field that’s better than lithium for grid storage. Flow batteries, flywheels, pumped hydro, or just heating up sand or rocks. Others, like sodium batteries, are being manufactured and will probably find their way into real products in the next few years.

        • @fatalError@lemmy.sdf.org
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          04 months ago

          Chill, no need to be stressed. Part of the ideas you mentioned are already implemented in some cases, but they are not without drawbacks. Pumped hydro is good, but has high maintainance costs, messes with the fish and requires large bodies of water, how do you get tbat in the desert? Flywheels have good inertia, great for stabilizing the grid, Ireland has some for that exact reason, but can’t store a whole lot. And heating up roxks and sand may work if you need heat at night, but you need electricity, so you need water to turn into steam to produce it. Sodium batteries look the most promising, we’ll see how they develop. But until we get these storqge facilities built, adding more solar would only destabilise the grids even more.

            • @fatalError@lemmy.sdf.org
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              4 months ago

              What propaganda? I think you have to go back and read my post once more… The thread started from solar panels in the desert. At the moment the most widely used grid storage is pumped hydro, how will you do that in the desert? Next most used tech RIGHT NOW is lithium batteries. Other solutions exist, but how many are there implemented and ready to capture that energy right now? Oh, not so many? Then putting up more solar panels hoping that one day we have the storage for them is foolish, these panles lose efficiency over time. I don’t have an agenda to spread, there is no propaganda, I am only talking about the an issue which exists, which is energy storage, for which we have some solutions, with their pros and cons, but not close to being implemented.