this post was submitted on 15 Dec 2025
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Science Memes

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[–] brucethemoose@lemmy.world 35 points 1 day ago* (last edited 1 day ago) (7 children)

They’re also talking about data centers in space, yet are too cheap to use anything but evaporative cooling + supplemental gas generators on Earth.


I did some math on, amongst other things, launch costs for an Earth-data center sized installation, or the area needed to radiatively cool it, and it is fun:

https://projectrho.com/public_html/rocket/heatrad.php

See that power of four? Areas get very large, like kilometers wide, if you want your coolant below a typical 300K (~30C), and apparently no one told Bezos that little detail.

Those space construction startups know what they’re doing. They’re selling billionaires a bridge to nowhere; and it’s working.

[–] ulterno@programming.dev 3 points 1 day ago

Those space construction startups know what they’re doing. They’re selling billionaires a bridge to nowhere; and it’s working.

Guess I should have gone CHA instead of INT.
I might have gotten some of that billionaire money to buy more RAM.

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