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Gli ultimi otto messaggi ricevuti dalla Federazione
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  • What did you want to be when you grew up?

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  • Wind Power Is Taking Off In China– All The Way to 2000 m AGL

    2000 m above ground level (AGL), winds are stronger and much, much more consistent than they are at surface. Even if the Earth were a perfect sphere, there’d be a sluggish boundry layer at the surface, but since it’s got all these interesting bumps and bits and bobs, it’s not just sluggish but horribly turbulent, too. Getting above that, as much as possible, is why wind turbines are on big towers. Rather than build really big tower, Beijing Lanyi Yunchuan Energy Technology Co. has gone for a more ambitious approach: an aerostat to take power from the steady winds found at high altitude. Ambitiously called the Stratosphere Airborne Wind Energy System (SAWES), the megawatt-scale prototype has recently begun feeding into the grid in Yibin, Sichuan Province.

    The name might be a bit ambitious, since its 2000 m test flight is only one tenth of the way to the stratosphere, but Yibin isn’t a bad choice for testing: as it is well inland, the S2000 prototype won’t have to contend with typhoons or other ocean storms. The prototype is arguably as ambitious as the name: its 12 flying turbines have a peak capacity of three megawatts. True, there are larger turbines in wind farms right now, but at 60 m in length and 40 m in diameter, the S2000 has a lot of room to grow before hitting any kind of limit or even record for aerostats. We’re particularly interested in the double-hull construction– it would seem the ring of the outer gas bag would do a good job funneling and accelerating air into those turbines, but we’d love to see some wind tunnel testing or even CFD renderings of what’s going on in there.
    A rear view shows the 12 turbines inside the double hull. It should guide air into the gap, but we wonder how much turbulence the trusses in there are making.
    During its first test flight in January 2026, the system generated generated 385 kilowatt-hours of electricity over the course of 30 minutes. That means it averaged about 25% capacity for the test, which is a good safe start. Doubtless the engineers have a full suite of test flights planned to demonstrate the endurance and power production capabilities of this prototype. Longer flights at higher capacity may have already happened by the time you read this.

    Flying wind turbines isn’t a new idea by any means; a few years ago we featured this homemade kite generator, and the pros have been in on it too. Using helium instead represents an interesting design choice–on the plus side, its probably easier to control, and obviously allowing large structures, but the downside is the added cost of the gas. It will be interesting to see how it develops.

    We’re willing to bet it catches on faster than harvesting wind energy from trees.

    All images from Beijing Lanyi Yunchuan Energy Technology Co., Ltd.

    hackaday.com/2026/02/26/wind-p…

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  • I nuovi schiavi dell’algoritmo
    @anarchia
    di Mario Sommella (*). Abbiamo rubato le immagini (addirittura 8) al grande Mauro Biani. Caporalato digitale, sfruttamento sistemico e complicità delle multinazionali L’immagine che non vogliamo vedere Sono le sette del mattino. In una città italiana qualunque, un uomo di...

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  • Large Hadron Collider, he typed carefully

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  • @reiver no, it's just a regular acct:

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  • “le atlete italiane vincono, ma non contano”. il medagliere olimpico visto in prospettiva di genere, tra pinkwashing e gender gap
    @anarchia
    Le atlete italiane si sono distinte in molte discipline in questa edizione delle Olimpiadi invernali, regalando al Paese la maggior parte delle medaglie e offrendo uno spaccato

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  • Ho appena creato un account su #Proton.

    Uncategorized proton
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    @perrySto provando a farmi un utente, ho visto che ci sono due prodotti, kDrive e kSuite. Io volevo fare solo kDrive ma vedo che la procedura di registrazione ti chiede di crearti una mail sul loro server. A questo punto mi domando perché fare kDrive e non direttamente kSuite visto che comunque anche per avere solo kDrive devi farti una mail con loro?
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    @ma_se_mo_la do you need just the text or do you need to keep the formatting? If you only care for the text, pdftotext and then open that in LibreOffice Writer for clean up and formatting. If you want to keep the formatting and only need to do small changes to the text, the drawing program does a pretty decent job with opening PDF directly
  • New people are joining Mastodon.

    Uncategorized mastohelp eupol uspol
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    New people are joining Mastodon. Here is my #mastohelp:1. Write a meaningful bio text — no one follows the unknown.2. A profile photo of yourself is helpful — again, no one follows the unknown.3. Start replying to other people's posts. Eventually you will get noticed.4. If you get stuck, ask questions — people are really helpful here.5. Follow at least 200, so you get an interesting feed.6. Search hashtags of topics you like. If you like politics, try #eupol or #uspol.Welcome! 🐘
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    @Titan80 @emanuelecariati da persona che usa Linux da tempi immemori e che passa metà della vita su terminale: il terminale non serve veramenteora, *evidentemente* il terminale è l'interfaccia più comoda che sia mai stata inventata dal genere umano, e la tastiera è l'unico modo ergonomico di interagire con il computer (non sono sarcastica, *per me* lo sono, ma è un gusto come un altro).ma se per qualche strana ragione non hai il mio stesso gusto, non c'è bisogno di sforzarsi per usare il terminale, non è necessariamente più potente, più efficiente, più /vero linux/ o altre cose del genere, semplicemente è un modo diverso di fare le cose che per alcune persone è meglio e per altre è peggio.l'unica cosa in cui trovo che il terminale abbia vantaggi innegabili è nella facilità con cui si può scrivere documentazione: basta solo testo, senza stare a fare screenshot o peggio ancora video. Ah, e nel supporto remoto, perché al telefono o su una chat testuale è tutto sommato più facile dettare dei comandi e farsi leggere le risposte che non stare a descrivere un'interfaccia grafica.