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Are we all millenials here or is that a misperception?

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    Designing A Pen Clip That Never Bends Out Of ShapeIf you’ve ever used a ballpoint pen with a clip on the top, you’ve probably noticed they bend pretty easily. The clip relies on you only bending it a small amount to clip it on to things; bend it too far, and it ends up permanently deformed. [Craighill] decided to develop a pen clip that didn’t suffer this ugly malady. The wire clip design easily opens wide because the spring wire is not actually deforming much at all. Credit: YouTube video, via screenshotThe problem with regular pen clips comes down to simple materials science. Bend the steel clip a little bit, and the stress in the material remains below the elastic limit—so it springs back to its original shape. Push it too far, though, and you’ll end up getting into the plastic deformation region, where you’ve applied so much stress that the material is permanently deformed.[Craighill] noted this problem, and contemplated whether a better type of clip was possible. An exploration of carabiner clips served to highlight possible solutions. Some carabiners using elastically-deformed closures that faced the same problem, while others used more complicated spring closures or a nifty bent-wire design. This latter solution seemed perfect for building a non-deforming pen clip. The bent wire is effectively a small spring, which allows it to act as a clip to hold the pen on to something. However, it’s also able to freely rotate out from the pen body, limiting the amount of actual stress put on the material itself, which stops it entering the plastic deformation region that would ruin it.It’s some neat materials science combined with a pleasant bit of inventing, which we love to see. Sometimes there is joy to be had in contemplating and improving even the simplest of things. Video after the break.youtube.com/embed/bFDt3lUzVPc?…youtube.com/embed/3i9FGaakX-Y?…[Thanks to Keith Olson for the tip!]hackaday.com/2026/03/03/design…
  • Quante lamentele.

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    Quante lamentele. Qui da noi non ci sono problemi visto che "dietro ogni grande uomo c'è una grande donna e a casa comanda mia moglie" (cit. giornalista a Sanremo).#EU, nel 2024, salgono al 35,2 per cento le donne in ruoli manageriali, ma l’#Italia è fanalino di coda: I dati di Eurostat https://www.eunews.it/2026/03/02/ue-nel-2024-salgono-al-352-per-cento-le-donne-in-ruoli-manageriali-ma-litalia-e-fanalino-di-coda-i-dati-di-eurostat/ @societa
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    @cancel from reading the report from the copy right office it sounds like it is less of a matter of was a computer involved and more whether the human author did anything at all.
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    @res260 Sadly a likely observation :\So many people just giving up on their craft.