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MgB2

HN member
Joined
Sat, Oct 12, 2019, 2:45 PM UTC
HN karma
195
Public activity
20 items

About MgB2

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Recent public activity

  1. comment
    Comment #48657159

    I'm kind of fascinated by the first diagram on the page. It sits so firmly in the uncanny valley for me and I can't put my finger on why. By itself every part looks ok and normal, …

  2. comment
    Comment #45990956

    Yes, they say its HDPE, but then conveniently in all their talk about sustainability, they somehow forget to talk about where HDPE actually comes from. Just that it being composed …

  3. comment
    Comment #45990915

    Sure it is. But it's also nowhere near cost competitive and so no one does. They also don't even claim they're using anything else than "normal" HDPE made from ethylene distilled f…

  4. comment
    Comment #45989831

    Which is basically HDPE (plastic) foil with limestone filler. And a whole website full of marketing that somehow never mentions that 20% of the material is non-renewable (made from…

  5. comment
    Comment #43578447

    The prompt didn't exactly describe Indiana Jones though. It left a lot of freedom for the model to make the "archeologist" e.g. female, Asian, put them in a different time period, …

  6. comment
    Comment #43574927

    Idk, the models generating what are basically 1:1 copies of the training data from pretty generic descriptions feels like a severe case of overfitting to me. What use is a generati…

  7. comment
    Comment #40389226

    - Germans use commas as the decimal separator, while periods are only used to separate thousands. - As stated in one of the linked mastodon posts, the abbreviation for the Deutsche…

  8. comment
    Comment #39990750

    That's basically what beancount does, isn't it? You basically have all the transactions in your plaintext files, and it generates the full ledgers from those on the fly once you wa…

  9. comment
    Comment #36490438

    Why gatekeep cycling? As far as I am concerned, anything that gets people out of their cars and onto bicycles is a good thing. If they like it, they might still switch to a normal …

  10. comment
    Comment #36490414

    > Bikes that go faster or where one doesn’t need to pedal at all need a license plate and special insurance. And, critically, they aren't allowed on bike lanes but have to be rode …

  11. comment
    Comment #36403006

    That's not how LCD Displays work, though.

  12. comment
    Comment #36361045

    I'm working on a small program that continually monitors a region of the screen and OCRs and translates the text on screen if there are changes. I want to use it improve my Italian…

  13. comment
    Comment #33503604

    The compound presented here is, however, not an organoaluminum compound. Those have Al-C bonds and are indeed very reactive. Aluminum formate has the Al3+-ion coordinated only by o…

  14. comment
    Comment #32442681

    PowerQuery can also use ranges inside the same worksheet as data sources. You can define either cell ranges or named tables as data sources and then use them in PowerQuery just lik…

  15. comment
    Comment #32263122

    As others have pointed out, LED lights for general lighting (not those RGB strips for accent lighting) use phosphors with very broad emission bands. Unlike fluorescent lamps, they …

  16. comment
    Comment #32263089

    Exactly, if you get nice CRI 95 lamps you are unlikely to have a noticeable problem with color rendition. But still beware, the CRI printed on the box (Ra) is kind of flawed since …

  17. comment
    Comment #32263034

    For normal lighting LEDs the diode itself usually emits blue light (440-460 nm). Most of the blue photons are then absorbed by the phosphor or phosphors and reemitted at longer wav…

  18. comment
    Comment #28320422

    In Germany, you can get your tungsten at Smart Elements

  19. comment
    Comment #28320334

    I used to work with tungsten carbide cubes during my PhD thesis. They're used in multianvil high-pressure synthesis. With the right setup you can reach almost 20 GPa of pressure. N…

  20. comment
    Comment #26601207

    The Tank Museum (formerly Bovington Tank Museum) is also doing a long-running series of "tank chats" on their exhibits. They don't only give some very interesting details (if you'r…