• teft@piefed.social
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    17 days ago

    Anybody Who Thinks Orbital Data Centers are a Good Idea Is Suffering from AI Psychosis, Experts Argue Doesn’t Understand Basic Physics

    • billwashere@lemmy.world
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      17 days ago

      Two main problems with data centers. Power and cooling. In space the power is doable. The cooling is a major pain in the ass and always has been. There are only three ways to get rid of heat. Conduction, convection, and radiation. The first two don’t work because of the vacuum thing. The third is horribly inefficient. Just look at the ISS and the giant fins that only dumps about 70 kW of waste heat through radiator “wings” that weigh several tons. A single rack in a high density compute rack can generate 100kW by itself.

      So yeah given the expensive and how inefficient it is, it’s a terrible idea.

      Edit: I’m a system architect so dealing with data center heat is something I’m familiar with.

      • chaogomu@lemmy.world
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        17 days ago

        There’s also the very real problem of data transfer.

        On land you just lay down another fiber optic cable and you can double your data transfer rate.

        In space, you have to deal with cross talk and interference on a limited spectrum.

          • M137@lemmy.today
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            17 days ago

            If it was a solved problem it would be widely used, but it isn’t. Ever looked at the reports of starlink speeds? It’s not reliable at all, everything other than a fully clear sky with cold weather (meaning less moisture and particles in the air) affects the communication. It physically can’t be a good or better alternative to fiber (or anything else that isn’t wireless).