3 ms·
Probably orders of magnitude better than hard vacuum, though.
by LeifCarrotson 2y ago
Probably orders of magnitude better than hard vacuum, though.
- eru 2y agoFor conductive cooling, sure. But for radiative cooling, vacuum with a clear view of the night sky is orders of magnitude better.
- ikiris 2y agoTheir point is sure, you locally dump the heat. Where does it go then? There's not ground water to act as a sink so you're stuck with basically a big regolith insulator, and there's barely any atmosphere, so you're back to the black body of the ground with extra steps and a large local sink. That sink isn't infinite when you're talking even house scales, much less thermal scales of a large datacenter. Cooling works on earth because the atmosphere moves the heat.
- foxyv 2y agoThe regolith is 0.004W/m2K. Less than aerogel. Less than an open vacuum! Ouch! Although the regolith is only 4-5 meters thick, so you could probably just go under it and see what the subsurface is like with regards to conductivity.
- deleted 2y ago[deleted]