211–220 of 234 posts
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Why is this shameful?
Because it's crank science harvesting money from people who don't understand physics. Heat is almost impossible to dissipate in space because there's negligible matter to take the heat away.
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Extremely rough one significant digit analysis from first principles, containing a lot of assumptions: For solar panels: Assuming area of 1000 square meters (30m x 30m square), solar irradiance of 1 kW/m^2, efficiency of 0.2. As a result power is 200 kW. For radiators: Stefan-Boltzmann constant 6E-8, temperature difference of 300 K, emissivity of one, we get total radiator power 1000 x 6E-8 x 300^4 = 486 kW. The radi…
There's a very clever scheme I remember reading about a while ago where you dump the heat into an oil that you then spray in a fine mist towards a collector. You get a collosal surface area that way, in a very confined volume, with not that much more mass than a coolant fluid which you already need; and it's relatively easy to homogenise the temperature across the radiating particles. I seem to recall that it got as…
Altman: has stake in nuclear power and AI companies Also Altman: Let's build gigawatts of nuclear for AI Musk: has stake in space and AI companies Also Musk: Let's build AI datacenters in space
Starcloud is the concept I'll show my friends that datacenters have hit peak hype. Can't wait for an alien to NIMBY one of these.
Add the fact it's going to host AI and crypto and some will even call it fascism and try to move out (not sure where tho).
> In 10 years, nearly all new data centers will be being built in outer space,” Johnston predicts. Can I bet on the contrary odds? Could throw down my whole retirement with confidence
I read it as something an ambitious founder would say, not to be taken literally. Think: "AI will replace all software developers in 6 months"
Earlier quoted context omitted.
Why is this shameful?
Because it's crank science harvesting money from people who don't understand physics. Heat is almost impossible to dissipate in space because there's negligible matter to take the heat away.
Earlier quoted context omitted.
I read it as something an ambitious founder would say, not to be taken literally. Think: "AI will replace all software developers in 6 months"
This used to be called fraud, now it’s cutesy lying?
Last time these folks were mentioned on HN, there was a lot of skepticism that this is really possible to do. The issue is cooling: in space, you can't rely on convection or conduction to do passive cooling, so you can only radiate away heat. However, the radiator would need to be several kilometers big to provide enough cooling, and obviously launching such a large object into space would therefore eat up any cost s…
TFA> “In space, you get almost unlimited, low-cost renewable energy,” Why is this exclusive to space? If you're powering datacenters on solar, one would think covering the Sahara or other large desert in datacenters would be easier than launching them into space. Renewable energy is just as plentiful and free there, you can connect it to the rest of the world with multiple TB/s of fiber links, and the construction/ma…
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Ok, has anyone patented chips with radioactive source glued to them? For "true" randomness. If it not i want dibs on it.
https://en.wikipedia.org/wiki/Hardware_random_number_generat... > and even the nuclear decay (due to practical considerations the latter, as well as the atmospheric noise, is not viable except for fairly restricted applications or online distribution services)
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Just run your closed loop cooling through a heat exchanger in sea water. They probably do something like this already.
Yes, pouring more heat into the already warming oceans is surely a safe plan.