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Joined 3 years ago
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Cake day: July 7th, 2023

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  • This is such a dumb concept and likely exists entirely to wow investors. A single AI server with 8 GPUs produces something like 7000 watts of heat, if not more. And likewise, will require at least that much power. Sure, solar is “free” once you’ve got the panels in space. The real killer though is dissipating all that heat. Obviously, there’s no atmosphere in space to transfer heat to. Your only option is purely IR radiation which is significantly less efficient. To put this in context, the ISS’s heat dissipation system can dissipate about 14,000 watts. Ignoring all of the other infra that goes into a data-center, that would be two servers. You add all this up, the mass of the supporting infrastructure would far out-weigh the actual servers. And the economies of satellites and rocket launches comes down to mass.







  • If you were to actually read the substack the original author wrote, it’s well justified reasoning. The original poverty calculation was based on the cost of food as a percentage of income of a family that is fully participating in society. The author explains though that food is a much smaller portion of our daily expenses and that the cost of fully participating in society includes significantly more expenses. So, if we still use food as a baseline, but re-evaluate it’s percentage of expenses. The new poverty line comes out to about 130k. The author also validates this by looking at the national average expenses and indeed for a family, fully participating in society with no government support, it’s around that range. But you know, continue being snarky.






  • Awsome! Yea, I’ve still got a lot to learn about antennas. I’ve been working towards my general HAM license, and antenna design starts to come into play at that point.

    I’ve also been trying to incorporate a raspberry pi into another node I’m working on, but it’s a pi zero 2w. I’d like to build a fully off grid, solar powered ADS-B node. The current build is too much for even 3 18650s. Not sure it’ll ever work out. The ultimate goal is a mesh repeater set up with a pi for occasional serial control and updates. We’ll see if I ever get there.




  • ramielrowe@lemmy.worldOPtoMeshtastic@mander.xyzV2 of my Repeater Node Build
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    4 months ago

    Yea, it’s definitely not ideal for a high traffic repeater. My area’s got pretty minimal traffic, so I don’t expect there’s enough traffic to cause interference right now. When I get to a V3, I’ll probably be upgrading to a wider enclosure to get better spacing. The same company has a 200mm tall box I could mount horizontal, and put the antennas on the long side.



  • I work at an Infrastructure Cloud company. I design and implement API and Database schemas, I plan out backend workflows and then implement the code to perform the incremental steps of each workflow. That’s lots of code, and a little openapi and other documentation. I dig into bugs or other incidents. That’s spent deep in Linux and Kubernetes environments. I hopefully build monitors or dashboards for better visibility into issues. That’s spent clicking around observability tooling, and then exporting things I want to keep into our gitops repo. Occasionally, I’ll update our internal WebUI for a new feature that needs to be exposed to internal users. That’s react and CSS coding. Our external facing UI and API is handled by a dedicated team.

    When it comes to learning, Id say find a problem you have and try to build something to improve that problem. Building a home lab is a great way to give yourself lots of problems. Ultimately, it’s about being goal oriented in a way where your goal isn’t just “finish this class”.