• ChaoticNeutralCzech@feddit.org
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    5 hours ago

    Old Czechoslovak oval 380V (3-phase 220V) plugs have 4 genders. The contact gender depends on whether the receptacle is a power source or sink, the sleeve gender depends on whether it’s a cable mount (innie) or wall mount (outie). I hate this, they could have made it work with two while still keeping the water resistance flaps like the new CEE round ones.

    Contact gender Plug Receptacle
    Female FP FR
    Male MP MR

    This meant that people needed contraptions like this to extend cables:

    We have a homemade one with a dodgy wooden base, and two outputs: one has two phases swapped for counterclockwise power.

  • Aatube@kbin.melroy.org
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    3 hours ago

    i agree with the master of electricity

    but what’s the wall plug converter have to do with anything?

  • ceenote@lemmy.world
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    10 hours ago

    It’s the classic:

    “It’s grade school biology!”

    “Okay, but when you get to middle school…”

        • hperrin@lemmy.ca
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          9 hours ago

          It’s collegiate biology.

          Ah, someone failed biology in college.

          • zarathustrad@lemmy.world
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            8 hours ago

            As someone who has experienced Post graduate biology, at that point explaining some things does reach the level of “trust me bro” when speaking to people that have no baseline biology knowledge.

            Do you want a series of 1 hour lectures and a few thousand pages of reading material? No? Then you just need to trust the experts.

            • yetAnotherUser@discuss.tchncs.de
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              8 hours ago

              Most people don’t?

              I mean why would anyone not studying biology (or related fields) have to take biology in college? Or is that a US-American thing?

              • canihasaccount@lemmy.world
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                7 hours ago

                It’s a common general education requirement for college in the US, yeah. Biology, physics, psychology, economics, English/writing, math, etc. are often all required, or at least a selection of most of the discipline-intro-level courses is.

                • yetAnotherUser@discuss.tchncs.de
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                  6 hours ago

                  Huh, that’s weird. Isn’t highschool sufficient for general education?

                  Thinking about it, it might not be. I’ve just checked and at least in Germany a US highschool diploma (including passing tests like SAT or ACT flawlessly) doesn’t (generally) qualify you for entering university here. That is, you are literally prohibited by law from enrolling.

                  I’m genuinely glad this isn’t part of university education here. I mean, I’m attending lectures because I have interest in a certain subject - not because I want even more general education after finishing secondary education.

    • Landless2029@lemmy.world
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      3 hours ago

      When I was a kid our electricity got cut (yes we were poor). We found an outlet with power for some reason. Must’ve been wired to another unit in the 3 family home.

      So my moms boyfriend went out to the hardware store and made this cable. Then plugged in the working outlet to a nearby dead one and we got power again…

      I don’t remember how long we ran that but nothing exploded.

      If I recall he was from another country and they did this all the time across houses when someone lost power or hooking up gas power generators.

    • Kobibi@sh.itjust.works
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      4 hours ago

      Can I ask, what’s the (ill-advised) use case for this?

      I don’t know anything about electronics but I readily believe this is a dangerous cable

      But what I don’t get is what people want it for. I’ve never been in a situation that calls for this

      • Soybean@lemmy.world
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        4 hours ago

        They can be used to hook a generator to your house if your power goes out, but people will use them for things like if they strung up Christmas lights backwards so 2 female ends are next to each other.

    • A_norny_mousse@feddit.org
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      4 hours ago

      hot damn. I once lived in a house that used a contraption like this to feed elctricity from one circuit into another. I didn’t know and I touched one end… I did fall off the ladder, but I’m still alive.

      Of course this analogy is even more flawed than OOP’s.

    • Grass@sh.itjust.works
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      6 hours ago

      they exist and my coworkers kept buying them from somewhere and I never trusted them not to kill themselves so I did the one underpaid above and beyond the boss didn’t deserve by fixing the idiotic wiring

  • A_norny_mousse@feddit.org
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    10 hours ago

    Another perfect example of flawed analogies and kneejerk conclusions vs. the benefit of thinking about it for a few seconds