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Cake day: October 1st, 2023

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  • bus_factor@lemmy.worldtoScience Memes@mander.xyzVirgin Physicists
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    10 days ago

    There’s less and less reason to do it (and it’s never 5). On systems without floating point you might want to round it a bit, but only if the specific thing you’re doing allows it, and even then you’re more likely to do a fixed-point approach by using e.g. 314 and dividing by 100 later, or adjusting that value a bit so you can divide by 128 via bitshift if you’re on a chip where division is expensive. However, in 2025 you almost certainly should have picked a chip with an FPU if you’re doing trigonometry.

    And while rounding pi to 3 or 4 is certainly just a meme, there are other approximations which are used, like small-angle approximations, where things like sin(x) can be simplified to just x for a sufficiently small x.


  • Which country is this? I think both American and European (or at least Norwegian) washers use standard plugs (although American dryers do not), so I’m just curious which areas use something custom for that.

    A regular plug should be able to supply a washer with power, but dryers are a different story in countries using 110V power.



  • bus_factor@lemmy.worldtoMicroblog Memes@lemmy.worldBuilt to last
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    11 days ago
    • It can tell you it’s done, so you notice the notification after a couple hours instead of finding musky clothes a day or two later
    • It can tell you it’s time to do the self-cleaning cycle
    • If you’re doing something unusual, like washing reusable diapers which need extra rinse cycles, you can upload a custom program for that to the washer
    • Even more unusual, someone had stacked units and was too short to reach the buttons on the washer, so they liked to start it via the app instead of getting a stool

    Most of this can be achieved in other ways (like a smart plug measuring the current draw and a simple monthly reminder), but non-techies want turnkey solutions.

    I can’t see any reason to have WiFi on your dryer, though.





  • You are worthy of love, and there is someone out there for you, somewhere.

    I totally get your feelings about dating sites, although I dislike them for different reasons. Maybe it’s better to try meeting people through other means?

    You could join some kind of club which interests you and meet people that way, perhaps? It might take some pressure off, since you’re just doing something you enjoy and meeting people in the process. Maybe you get a new friend or even partner, maybe not.

    There are even specific events for single people, where you do some activity together. I don’t know how the dynamic is on those events, though, because clearly they all know why they’re really there.





  • That is a big hint to why you feel you’re going slow. On flat or downhill ground I would usually be on the very hardest gear in order to be able to keep up with the wheels. If you’re constantly in a medium gear you’ll not reach very high speeds on easy terrain.

    But maybe you shouldn’t worry about that right now. You’re pretty new to this, so you don’t need to optimize for speed. Just go at a pace comfortable for you, while you get used to this new way of moving. Perhaps it’s even a good thing to be going slower right now, that way there’s more time to react, and less injury if you have an accident.


  • I wouldn’t think of it that way. Just try to avoid twisting the chain too much. If your chain is all the way to the left in the front, keep it on the left half in the back. If you feel like moving the rear to the right half, just shift the front gear to the middle instead. Beyond that, just do whatever feels right.

    I usually set the front to the ballpark I expect to be in for the foreseeable future, and fine tune in the rear as I go. It’s usually harder to shift the front while pedaling hard uphill in my experience.