889
New insult just dropped
(lemmy.nz)
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 07 Nov 2026
889 points (98.7% liked)
Enough Musk Spam
3458 readers
1357 users here now
For those that have had enough of the Elon Musk worship online.
No flaming, baiting, etc. This community is intended for those opposed to the influx of Elon Musk-related advertising online. Coming here to defend Musk or his companies will not get you banned, but it likely will result in downvotes. Please use the reporting feature if you see a rule violation.
Opinions from all sides of the political spectrum are welcome here. However, we kindly ask that off-topic political discussion be kept to a minimum, so as to focus on the goal of this sub. This community is minimally moderated, so discussion and the power of upvotes/downvotes are allowed, provided lemmy.world rules are not broken.
Post links to instances of obvious Elon Musk fanboy brigading in default subreddits, lemmy/kbin communities/instances, astroturfing from Tesla/SpaceX/etc., or any articles critical of Musk, his ideas, unrealistic promises and timelines, or the working conditions at his companies.
Tesla-specific discussion can be posted here as well as our sister community /c/RealTesla.
founded 3 years ago
MODERATORS
My favorite part of is that the reason there is so little convective heat transfer is space is the same reason the temperature is so low.
I get this isn't super common knowledge but yikes lol
But in movies the astronauts get cold when there is low power and freeze when the suit is punctured. Arnold removed his helmet on Pluto and froze. This is proof it's cold. /s
What if you'd run metal pipes or radiators outside, with (hot) water running through them? Would that also not cool the water down?
this is already done. about a quarter of the big panels on the International Space Station are radiator panels.
they're always aligned 90° away from the solar panels so the sunlight hits them edge-on and their faces are pointed towards empty space.
a satellite with data-center level servers on board would need an absurd amount of both solar panels and radiator panels, so many panels that it would need to orbit much higher than the ISS, because of trace atmospheric drag.
Satellites still have cooling (radiators, heatpipes), but with only radiation they are orders of magnitude less efficient. So having a satelite that is like 0.1% datacentre & the rest just for cooling is kinda a stupid idea (and that is before adding solar panels, that themselves too have to be cooled the same inefficient way!).
It's not impossible or anything, just really stupid, especially if the point is easier cooling. It's not surprising knowing the source tho (dude prob just saw undersea datacentres & thought space is cooler).
I'm not sure if the term radiator is what's making this sound appealing, but on earth radiators mostly use convective and conductive heat transfer to transfer heat off the radiator. The energy in the radiator fluid is transferred to the radiator tube shell and then to the air.
Temperature is a measure of how much kinetic energy the molecules in a system have. The absolute coldest place possible is a total vacuum, because there are no molecules. But if there are no molecules, you can't have convective or conductive heat transfer.
If you put radiators in space you'd get conductive transfer from the radiator fluid to the shell, but there are so few molecules in space to have the energy (heat) transferred to that there is almost no conduction or convective transfer off the shell.
As the person the the OP mentioned, there is still radiative heat transfer where the kinetic energy of the molecules convert to electromagnetic energy. The rate is described by Stefan–Boltzmann law which uses this tiny ass constant and the temperature of the radiating body to the 4th power to describe the rate: σ = 5.670374419...×10−8 W⋅m−2⋅K−4
So, plainly put: it's slow as fuck.