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Data centers in space makes no sense

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Re: Data centers in space makes no sense

#132
Admiral Grace Hopper is famous for using a length of wire to explain to others what a nanosecond was.

https://www.pbs.org/newshour/world/pentagon-embraces-musks-g...

Data centers in space make absolute sense when you want as close to real time analysis on all sorts of information. Would you rather have it make the round trip, via satellite to the states? Or are you going to build these things on the ground near a battlefield?

Musk is selling a vision for a MASSIVE government contract to provide a service that no one else could hope to achieve. This is one of those projects where he can run up the budget and operating costs like Boeing, Northrup etc, because it has massive military applications.

Re: Data centers in space makes no sense

#133
post #94

You guys clearly didn't read the full blog post where Musk mentions lunar mining. They're going to put an ASML machine on the moon and turns regolith into chips and solar panels automatically. Literally free compute

I can't even tell what's sarcasm anymore lol.

The comment you are replying to is definitely sarcasm… I hope?

Re: Data centers in space makes no sense

#134
post #115

I would not assume cooling has been worked out. Space is a vacuum. i.e. The lack-of-a-thing that makes a thermos great at keeping your drink hot. A satellite is, if nothing else, a fantastic thermos. A data center in space would necessarily rely completely on cooling by radiation, unlike a terrestrial data center that can make use of convection and conduction. You can't just pipe heat out into the atmosphere or build…

You can reject the heat by shedding hot mass, but only once.

Re: Data centers in space makes no sense

#135
post #123
post #115

I would not assume cooling has been worked out. Space is a vacuum. i.e. The lack-of-a-thing that makes a thermos great at keeping your drink hot. A satellite is, if nothing else, a fantastic thermos. A data center in space would necessarily rely completely on cooling by radiation, unlike a terrestrial data center that can make use of convection and conduction. You can't just pipe heat out into the atmosphere or build…

I think he has rocket company that needs more work. Sufficient hype funds more work for his rocket company. The more work they have the faster they can develop the systems to get to Mars. His pet project. I really think it's that simple.

Starlink and Falcon 9 have been an excellent pairing, Falcon 9 partially reusable rockets created a lot launch capacity and starlink filled the demand. Starship if it meets its goals will create more launch fully reusable supply by orders of magnitude, but there is not the demand for all that launch capacity. Starlink can take some of it but probably not all so they need to find a customer to fill it in order to build up enough to have the volume to eventually colonize mars.

Re: Data centers in space makes no sense

#136
post #63

Earlier quoted context omitted.

That's not fair! Sometimes the ideas come from Snow Crash, which gave us the Metaverse because Zuckerberg wanted to cut a guy in half with a katana from a motorcycle.

Wait is that why they didn't put legs on anyone?

Wow, now you say it, that finally makes sense. Especially given it looked stupid and all the other VR chat solutions could already do legs.

Re: Data centers in space makes no sense

#137
post #115

I would not assume cooling has been worked out. Space is a vacuum. i.e. The lack-of-a-thing that makes a thermos great at keeping your drink hot. A satellite is, if nothing else, a fantastic thermos. A data center in space would necessarily rely completely on cooling by radiation, unlike a terrestrial data center that can make use of convection and conduction. You can't just pipe heat out into the atmosphere or build…

The equation has a ^4 to the temperature. If you raise the temperature of your radiator by ~50 degrees you double its emission capacity. This is well within the range of specialised phase change compressors, aka fancy air conditioning pumps. Next up in the equation is surface emissivity which we’ve got a lot of experience in the automotive sector. And finally surface area, once again, getting quite good here with nan…

> And finally surface area, once again, getting quite good here with nanotechnology.

So your hot thing is radiating directly onto the next hot thing over, the one that also needs to cool down?

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