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GeoQuest #1484 4/7🟩🟩🟩🟥🟥🟥🟩

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GeoQuest #1484 4/7🟩🟩🟩🟥🟥🟥🟩

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  • cybersecurity@poliverso.orgundefined

    If You Like The Sound of a Thermoacoustic Stirling Engine, Check Out These Plans

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    cybersecurity@poliverso.orgundefined
    If You Like The Sound of a Thermoacoustic Stirling Engine, Check Out These Plans[My Engines] has been doing some sterling work on Stirling engines for some years now. Their thermoacoustic engine is now finally far enough along to open-source, so the magic of collaboration can speed technological advancement.You’ve probably heard of Stirling Engines, but what’s this “thermoacoustic” business? Hot sound? Well, that’s the translation, and it’s not a bad starting point for understanding what’s going on: the engine converts heat into high-amplitude sound waves — that is, waves of pressure — which means the engine itself has no moving parts. Well, almost. Obviously moving parts are required to get power out. In [My Engines] case he’s using a piston and linear generator, but otherwise it makes for a very simple, very reliable engine that can be fueled by any available source of heat. Say like burning methane from [My Engines]’s home biogas plant.[My Engines] promises more videos to help you understand the construction in a way his previous videos might not detail, and has put 3D models and drawings at a public Google Drive. There’s also a Discord you can join, because apparently that’s the only way to communicate about projects these days.The whole build is very much within range of a home maker, though there’s a lot more to it than the toy Stirling engines you may have made out of tin cans back in the day. If you want to play with thermoacoustics but [My Engines]’s design seems like a little much to get started with, you can make a demonstrator with some steel wool and a test tube. Be careful, though: model engines can be an addictive hobby.youtube.com/embed/ivyMKqm2LOU?…hackaday.com/2026/03/14/if-you…
  • andre123@snowfan.itundefined

    L' Iran dichiara che Google e MS sono possibili bersagli militari.

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    filobus@sociale.networkundefined
    @andre123 UE dorme!
  • stefano@mastodon.bsd.cafeundefined

    Dear friends of the #BSDCafe and the entire community,

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    _elena@mastodon.socialundefined
    @stefano 🫂💖
  • informapirata@mastodon.unoundefined

    Breaking gnius: mentre l'esercito di Trump è impegnato in Iran, la Groenlandia invade gli USA

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    informapirata@mastodon.unoundefined
    @generalespecifico @azzate 😅