• billwashere@lemmy.world
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    16 hours ago

    Isn’t it incredibly difficult to shed heat in space since the only real way to move heat is radiation?

    • percent@infosec.pub
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      15 hours ago

      In the (fiction) novel Artemis by Andy Weir, which takes place in a city on the moon, they have a heat management system that seemed pretty cool. They convert heat to light, and radiate the light out into space. Not sure how feasible/scalable that is, but I thought the concept was cool.

      • SpacetimeMachine@lemmy.world
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        3 hours ago

        That’s already how they do it. They pass heat onto radiators which radiate away the excess heat in infrared. It should be noted however that this is far less efficient than it is in an atmosphere.

        • percent@infosec.pub
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          7 hours ago

          If I had to guess, maybe they had a surplus of energy and needed some way to dissipate excess energy. I read the book years ago though, so I don’t really remember.

        • percent@infosec.pub
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          7 hours ago

          I suppose so. Maybe the concept could work with other forms of electromagnetic radiation too, and visible light was just the one used in the book. Idk, I’m no physicist 🤷‍♂️

    • ssillyssadass@lemmy.world
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      16 hours ago

      There are some various ways. Radiators can be large and thin, and as long as the heat-sensitive part of the thing is kept cool it doesn’t really matter how hot the rest of it gets.

  • Dogiedog64@lemmy.world
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    13 hours ago

    Come on now, people can’t actually be humoring this fever dream, can they? It’s just so fucking stupid…

  • yetAnotherUser@discuss.tchncs.de
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    1 day ago

    Me too. I’ll even make them full AI.

    Please send me $2 billion by Tuesday. My salary as yetAnotherUser CEO & CTO is a modest 20 million/year. Results are expected to appear by 2030.

  • dogslayeggs@lemmy.world
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    1 day ago

    Getting rid of the heat is going to be an issue for that… along with the massive pollution from the many launches required to get this in orbit.

    • db2@lemmy.world
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      1 day ago

      The heat will just dissipate in the air, and they can launch it at night when it’s colder. Science!

      /s in case, there are a few mouth breathers out today

      • FackCurs@lemmy.world
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        21 hours ago

        They could build them so that they stay in perpetual dawn or dusk. One edge with the solar panels in the su, the other edge with the cooling fins in the night’s cool breeze.

        • Urist@lemmy.ml
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          19 hours ago

          Geostationary orbit is far higher than low earth orbit and I would assume following earths twilight zone would not be much better. I do not see why you would either, with reaction wheels you could orient the satellites towards the sun regardless of the relative position of the earth, with the caveat that earth may block the sun which is hard to avoid entirely anyways.

          Also, there is not that much cool breeze in space, famously known for not having vast amounts of air (still have IR-radiation to help though).

          Edit: Probably ate the onion, didn’t I?

    • FaceDeer@fedia.io
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      1 day ago

      I’m pretty sure they’re aware of the need for radiators. They’ve probably designed satellites before.

      • FishFace@lemmy.world
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        18 hours ago

        Nobody thinks they’re incapable of working this out; we think theyre deliberately advertising something dumb that lay people won’t necessarily understand is dumb. Replying that they have smart engineers is stupid because no-one denied it - we just don’t think they used those engineers to come up with the idea.

    • WanderingThoughts@europe.pub
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      1 day ago

      We just need to invent space construction, cheap fusion power, autonomous robotics, improve AI and set up astroid mining first, then it’ll be a snap.

      • MonkderVierte@lemmy.zip
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        17 hours ago

        Honestly, i would count that as a win, since we have foresseable global ressource shortages anyway, but not large enough to get that started (more likely wars instead).

      • Cocodapuf@lemmy.world
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        23 hours ago

        Honestly, it’s hard to figure out what the first step in that chain is. If you want to start up industry in space, great, there are lot of potential benefits to that. But where do you start?

        Within the next 50 years I do expect a broad sector of space industry to emerge, but I really can’t predict what the first opportunities might be. Still, we can poke fun at it all we want right now, but I suspect a great many people will be working in space 50 years from now.

        • Womble@piefed.world
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          16 hours ago

          Mining raw resources that are more easily availabe on asteroids than on earth seems like the most likely candidate. There are metalic asteroids that have significant quantities of valuable metals like gold, titanium, iridium etc.

      • IphtashuFitz@lemmy.world
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        1 day ago

        Back when the capacitor plague hit I had to manage locating & replacing over 500 motherboards in the datacenter of my then-employer. Imagine if a hardware glitch like that happened in one of these.

        • Cocodapuf@lemmy.world
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          23 hours ago

          I had some of these bad capacitors blow in my video card, back in the day. I was extremely proud of myself for managing to order some replacement capacitors and soldering them in myself.

          The most impressive part might be that I ordered the right items. I knew nothing about electronics repair at the time, I just wanted to be able to play World of Warcraft again.

  • Mike@lemmy.ca
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    23 hours ago

    Even if this was an economically sound proposal, the next X45 magnitude solar flare might be a nasty surprise for reliability metrics…

    Edit: at some point, this would also likely contribute to Kessler Syndrome, but at least we’d have chat bots.

    • FaceDeer@fedia.io
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      1 day ago

      No, it started when a scriptwriter came up with an idea for a movie that would sell a lot of tickets.