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invalidator

HN member
Joined
Sat, Nov 06, 2021, 11:43 PM UTC
HN karma
527
Public activity
125 items

About invalidator

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Recent public activity

  1. comment
    Comment #49138319

    Google/Forrest rushed to embrace AI/Dan, and completely forgot about News/boat, which kept chugging along with no one at the controls until it degraded/crashed. It's a leaky metaph…

  2. comment
    Comment #48252589

    TDD is done in a tight loop (minutes) while coding. For every little micro-feature/fix, you write a test for the new behavior you want, implement the minimal ugly fix to get the te…

  3. comment
    Comment #48174201

    You can do better: cut to 0%, let the needle fall, go back to 100% for a moment to catch the needle as it approaches the bottom of the scale. If you want to be fancy, add some quic…

  4. comment
    Comment #47724859

    The interest is BECAUSE it's well explored territory. The concept is proven and works fine. On the low end where RISC-V currently lives, simplicity is a virtue. On the high end, RI…

  5. comment
    Comment #47724268

    As a kid I took a lot of classes at the Lawrence Hall of Science in Berkeley, which was paradise for fledgling nerds. On the last day they would have a little closing ceremony with…

  6. comment
    Comment #47537169

    Yes. Details here: https://github.com/resumex/doom-over-dns/tree/main/TXTRecord...

  7. comment
    Comment #45583948

    If you need a specific version of one package: apt-get install hello=2.10-3 If you want to lock down versions on a system, Apt Pinning: https://wiki.debian.org/AptConfiguration#Usi…

  8. comment
    Comment #45377580

    Yes, it's due to internal resistance.

  9. comment
    Comment #45377557

    > The voltages of batteries, in the first place, is function of state of charge. It's also a function of the rate of discharge. Have a look at this: https://marsen.com.au/wp-conten…

  10. comment
    Comment #45327597

    There's a technical reason for it: the voltage sags when the battery is discharged quickly. Ah is relatively constant, but Wh decreases significantly with faster discharge rates, s…

  11. comment
    Comment #44547601

    > Almost right - the trim has more authority than the elevators. Thank you, I'll update my brain and future explanations. :)

  12. comment
    Comment #44546248

    They are simple toggle switches without actuators. The switches are Honeywell P/N 4TL837-3D. Source[1]. Data sheet[2]. [1] https://ad.easa.europa.eu/blob/NM-18-33.pdf [2] https://w…

  13. comment
    Comment #44546010

    MCAS autonomously adjusts trim downward. The trim switches override MCAS, but when released, MCAS can resume trimming down again. The trim adjustments don't "override" the pilot's …

  14. comment
    Comment #44417665

    That's a pretty big yak to shave! Building a 5 axis that gives good results a big task. How long did it take you to get that working? Why do you need to make so many molds?

  15. comment
    Comment #43884748

    The BIOS was an abstraction layer. In the old days, not everything was 100% IBM PC compatible. There were lots of weird graphics cards. Some systems had incompatible disk and keybo…

  16. comment
    Comment #43883383

    It's not the same. For a simple example, let's say you are simply driving in a circle. The car wants to lean toward the outside. The linear motors can provide a countering force, l…

  17. comment
    Comment #43787258

    It depends on the language you're using. For my Ruby example, each of those method calls will allocate an Array on the heap, where it will persist until all references are removed …

  18. comment
    Comment #43757616

    The author keeps calling it "pipelining", but I think the right term is "method chaining". Compare with a simple pipeline in bash: grep needle Each of those components executes in …

  19. comment
    Comment #43032172

    > Probably not a good idea for anyone with a timeline It's not completely crazy. Software was developed by much smaller teams and got out the door quickly in that era.

  20. comment
    Comment #43031549

    > I can't help but feel like a lighter weight VM (versus electron) is what we actually want. Or at least what _I_ want, something like UXN but just a little more fully featured. Th…

  21. comment
    Comment #42993432

    "as the Universe expands, photons lose energy. But that doesn't mean energy isn't conserved; it means that the energy goes into the Universe's expansion itself, in the form of work…

  22. comment
    Comment #42554593

    TempleOS deserves a mention here. It boots up into a simple system with a C-like language featured front and center. It makes it easy to write small programs with simple graphics. …

  23. comment
    Comment #41240862

    In my experience, farsighted people tend to be very casual with their glasses, whereas us nearsighted folks protect them carefully. My theory is that being nearsighted, I can see m…

  24. comment
    Comment #41240159

    Are you far-sighted?

  25. comment
    Comment #40863117

    For a couple decades now, the way I have interviewed people is to ask a simple, very-high-level question, then repeatedly asking either "So how does it do that?" (drill down), or "…