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Joined 3 years ago
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Cake day: June 22nd, 2023

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  • In interstellar space there is no temperature differential for that solar cell scheme to work from. It only works when there is something that is heated by the sun part of the time, and radiates heat into space the rest of the time. Maybe the far (“dark”) side of the moon counts for that, but for a moon station you probably want batteries or RTG’s or whatever. I’m sure there are uses for this thing but they sound very niche. Radiating heat into space on hot nights on the other hand is quite interesting, as an alternative to air conditioning.







  • You have it approximately right, serving from an https domain does nothing to authenticate the thing being downloaded. There is such a thing as signed downloads, authenticated by a “code signing certificate”, used for things like Windows installers. Linux distros tend to use PGP signatures instead. Signing the download can in principle be a more secure process than serving a domain over https, since servers get pwned all the time. The download signing, by contrast, can in principle be done completely offline. There is a catch to that involving connecting to a timestamp server, but that gets into the weeds.

    https://en.wikipedia.org/wiki/Code_signing