Comment on Elon Musk Is Rolling xAI Into SpaceX—Creating the World’s Most Valuable Private Company

• ebc@lemmy.ca ⁨6⁩ ⁨hours⁩ ago

  No, it’s pretty hard to get rid of heat in space, vacuum is a very good insulator. The only way is radiation.

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  • sqgl@sh.itjust.works ⁨6⁩ ⁨hours⁩ ago

    Thanks

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• Chronographs@lemmy.zip ⁨6⁩ ⁨hours⁩ ago

  No, space isn’t cold it’s empty. You need something to conduct away the heat, otherwise all you can do is passively radiate it

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  • sqgl@sh.itjust.works ⁨6⁩ ⁨hours⁩ ago

    Fascinating. Will look more into it to understand.

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    • Herr_S_aus_H@lemmy.zip ⁨3⁩ ⁨hours⁩ ago

      Welcome to middle school physics.

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    • Dultas@lemmy.world ⁨6⁩ ⁨hours⁩ ago

      I think Scott Manly might have had a video on it (data enter in space) recently. I saw it on a feed but haven’t watched it. I’m sure he would mention the issues with heat removal.

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      • MalReynolds@slrpnk.net ⁨5⁩ ⁨hours⁩ ago

        youtu.be/DCto6UkBJoI

        TLDW: cooling’s fine if you use starlink V2 size and power (which is not very suitable for AI ‘datacentre’ use) because it works already.

        This is not about a few huge datacentres, it’s about a million small ones. There’s 99 problems with this (see Kessler syndrome !, radiation, …), cooling isn’t (much of) one.

        Doesn’t matter anyway, it just has to be vaguely plausible for a stock IPO pump (and dump) scheme while sweeping all that xAI debt under the rug.

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      • sqgl@sh.itjust.works ⁨4⁩ ⁨hours⁩ ago

        youtu.be/d-YcVLq98Ew&t=8m24s

        Doesn’t say why a vacuum cannot conduct heat though, but it makes sense to me now anyhow. Heat is vibrating molecules so to mitigate the vibration you need adjacent molecules which aren’t vibrating as much.

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    • jagermo@feddit.org ⁨6⁩ ⁨hours⁩ ago

      Read the traveller sourcebooks, they especially for the ship designs. Good stuff

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