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Joined 11 months ago
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Cake day: August 13th, 2023

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  • I’ve never seen it myself, but my wife spent most of her childhood/teenage years in Shetland, and apparently up there, back then, Smirnoff ice was the drink of choice for hard working middle aged men. We’re talking about a bunch of islands where the main employment is offshore fishing and the oil & gas industry, and where they’re very proud of their Viking heritage. (Image search Jarl squad to see what I mean, those guys who are picked for the squad will grow their beards all year to look the part)


  • It’s a really interesting question, I would love it if someone who understands this kind of physics properly would chime in!

    By my understanding of Reynolds number etc, the faster they go, the more turbulent the flow, so the rocks would be constantly hitting against each other sideways, and surely grind to dust in the constantly accelerating scenario.

    But maybe the infinite (looped) nature of this ‘dimension’ means that this logic doesn’t apply. What would even be the ‘characteristic length’? Are we thinking about established flow at the centre of an infinitely wide pipe? Am I wrong to think of constantly accelerating rocks with air in between as a type of fluid flow?


  • I don’t think the drag force due to air would work the same in a system with such a high concentration of rocks. It’s not like one object falling through undisturbed fluid, which then has to get out of the way, in this case the air would gradually start to move along with the rocks.

    This might be better modelled as turbulent flow of a mixed solid/air suspension. But there’s no ‘edges’ to the flow due to the looped dimension, so the viscous forces are pretty uniform… There would still be a terminal velocity, but much much higher than a rock falling through an atmosphere

    Also I imagine the rocks would quickly grind themselves to very fine dust, once they pick up a bit of kinetic energy, so then it would behave more like a fluid with uniform density… Could it even end up as laminar flow?






  • The longer I spend on Lemmy the more tempted I am to give Linux another try (had an old desktop with Ubuntu 10+ years ago, but never really got the hang of it fully, can’t remember the exact details but not everything worked properly).

    What holds me back is I’m in the middle of an engineering degree, I need to be able to collaborate easily on documents with word, share folders with OneDrive etc because that’s what everyone uses. Even signing into the uni’s portal-type thing is managed through your MS office account and authenticator app. And also I don’t have a lot of spare time to fiddle around getting things to work and ironing out wrinkles, even if that only needs done one and it’ll be fine in the long run…I need to be able to get on with my work reliably (maybe over Christmas I will have a bit more time to do setting up stuff).

    Can anyone convince me ask these worries are unfounded? Can you still easily interact with the MS universe, or are there ways around this?

    My poor wee laptop is already full to bursting with MATLAB, stm32 ide, etc so I don’t think I’d be able to partition and dual boot…