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Cake day: January 16th, 2024

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  • JasonDJ@lemmy.ziptoScience Memes@mander.xyzLaunches
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    5 days ago

    Instructions unclear. I’m going to the moon on Delta IX.

    (Edit: my dumbass just realized it’s ∆V, as in velocity. I thought Delta 5 was the name of a type of chemical propellant. Though now that I think of it, it really should be. Damn, and I work for a space company too. At least I’m just in IT).


  • Not only that, but managing wifi channel congestion in a dorm is a pita.

    It’s tough enough when you fully control the airspace, to have nice clean coverage and overlapping cells.

    But then add dozens or hundreds of individually managed APs in a tiny space…with DFS and/or 160MHz channel widths?

    Ops best bet is to get their own 5g home internet and plug in.

    You’ll be hard pressed to get a router to talk to a captive portal sign in…but if OP wants to get creative, this can easily be fixed with a dumb switch and a Linux PC with two NICs. You could use windows for this, but why would you?





  • Y’all also use PINs. Americans freak out if they have to enter a PIN.

    Here it’s only used for debit transactions (that is, taken directly out of a checking account). PIN for credit transactions is incredibly rare here.

    This is probably because the merchants are responsible for fraudulent credit purchases. Credit companies kinda have them over a barrel in that regard…they have no incentive to enforce PINs, and users just want convenience.

    Meanwhile Sally the Walmart clerk gets written up because some knucklehead in her lane swiped a cloned card. She has no power here either…card readers rarely ask for signature anymore (not like they are trained signature analysts, a pseudoscience in itself) and I can’t remember the last time I was asked for ID for a credit purchase (aside from booze, smokes, or Sudafed, but that’s a different reason)









  • Given these ratios it sounds like it’s more energy dense and less mass dense. That’s impressive. Hope it is commercially viable.

    In other words, I think “9 times more energy dense per gram” is probably far more laudable than “twice as energy dense per liter”, especially in EV applications, where battery packs are significant weight, and weight reduces “efficiency” (obviously they are just as efficient, but it takes more energy to move the added weight. You know what I mean)


  • They are bits of fire a few kilometres away. We could reach them if we wanted to. Or we could blot them out.

    For certain purposes, of course, that is not true. When we navigate the ocean, or when we predict an eclipse, we often find it convenient to assume that the earth goes round the sun and that the stars are millions upon millions of kilometres away. But what of it? Do you suppose it is beyond us to produce a dual system of astronomy? The stars can be near or distant, according as we need them. Do you suppose our mathematicians are unequal to that? Have you forgotten doublethink?


  • Pouring one out for my cordless Black and Decker electric screwdriver.

    Used to travel with it because it was small and light and it worked well for racking network equipment.

    It was a cheap piece of junk. But it did the job. Until one day TSA decided I couldnt bring it any more. It was under 7" but that wasn’t good enough.

    Told me I could check it. It would cost more for me to check a bag than for me to replace it.

    Still upset about it.




  • Yeah I’d check for fragmentation, particularly coming from whatever was on the opposite end of this tunnel. This looks like librespeed (which is super simple to run in a container, ‘adolfintel/speedtest‘, if interested…I run some at work and it’s very useful) so I’m assuming it was running on the server at the other end of the wireguard tunnel?

    That latency and jitter are also absurd tho. Op should run a bufferbloat test on both sides. Though I don’t always trust those results from librespeed.