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Engineering mathemagics

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  • M [email protected]

    There's a lot of machinists who think they are hot shit, so fitting username.

    machinist@lemmy.worldM This user is from outside of this forum
    machinist@lemmy.worldM This user is from outside of this forum
    [email protected]
    wrote on last edited by
    #95

    Yup. Thing is, it's known that 'machinists' coming out of trade school aren't worth a damn for years. The same is true of enginneers, yet they turn them loose on CAD and they create designs that make everyone miserable.

    This is one of the big problems with SpaceX/Blue Origin/Firefly. The designs are piss poor because the majority of their engineers are green.

    Engineers shouldn't have design authority until they've spent a few years manufacturing.

    S 1 Reply Last reply
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    • machinist@lemmy.worldM [email protected]

      Yup. Thing is, it's known that 'machinists' coming out of trade school aren't worth a damn for years. The same is true of enginneers, yet they turn them loose on CAD and they create designs that make everyone miserable.

      This is one of the big problems with SpaceX/Blue Origin/Firefly. The designs are piss poor because the majority of their engineers are green.

      Engineers shouldn't have design authority until they've spent a few years manufacturing.

      S This user is from outside of this forum
      S This user is from outside of this forum
      [email protected]
      wrote on last edited by [email protected]
      #96

      They are required to have a minimum of three years of design experience and have to pass a PE exam before they are allowed to verify their own designs.

      Up until that point, all of their designs are required to be sealed by another PE.

      machinist@lemmy.worldM 1 Reply Last reply
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      • pugjesus@lemmy.worldP [email protected]
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        H This user is from outside of this forum
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        wrote on last edited by
        #97

        RF engineer here, living the life of magic in the air and space!

        1 Reply Last reply
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        • S [email protected]

          They are required to have a minimum of three years of design experience and have to pass a PE exam before they are allowed to verify their own designs.

          Up until that point, all of their designs are required to be sealed by another PE.

          machinist@lemmy.worldM This user is from outside of this forum
          machinist@lemmy.worldM This user is from outside of this forum
          [email protected]
          wrote on last edited by
          #98

          My bad, not design authority as that's a specific thing. They are allowed to design and the guy rubber-stamping often doesn't catch much.

          Ultimately, this is a religious issue. Engineers are heathens that should be burned at the stake. Occasionally, you meet a good one who's been housetrained by the people that actually do the things.

          S Z 2 Replies Last reply
          1
          • bjoern_tantau@swg-empire.deB [email protected]

            The trouble is that even the consciousness maintenance needs power. If the power is out for too long the infrastructure is too damaged. So it actually does return when you turn it off. It just has to be done quickly enough.

            S This user is from outside of this forum
            S This user is from outside of this forum
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            wrote on last edited by
            #99

            That's why electroconvulsive therapy uses pulses of about a millisecond. But, then, it's not actually turning the power off, ECT is more of a warm reset of consciousness.

            1 Reply Last reply
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            • P [email protected]

              An actual textbook cover. I mean... An ancient grimoire of the dark arts

              Edit: I almost forgot about the sequel

              H This user is from outside of this forum
              H This user is from outside of this forum
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              wrote on last edited by
              #100

              The bible of my people

              1 Reply Last reply
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              • T [email protected]

                That's... huh...

                Hey!!! Physicists!!! Can we get your input???

                (Unless you're a physicist, in which case... fuck)

                C This user is from outside of this forum
                C This user is from outside of this forum
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                wrote on last edited by
                #101

                I mean, imagine if friction worked like this. You'd push a heavy object ... and it would move to the left (or maybe the right?) like it was on ice.

                FWIW I do have a Physics undergraduate degree. It doesn't help in this case.

                T 1 Reply Last reply
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                • P [email protected]

                  An actual textbook cover. I mean... An ancient grimoire of the dark arts

                  Edit: I almost forgot about the sequel

                  S This user is from outside of this forum
                  S This user is from outside of this forum
                  [email protected]
                  wrote on last edited by
                  #102

                  Omg I cant believe this is real.

                  1 Reply Last reply
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                  • B [email protected]

                    I always thought that would be a good style for a dart board. Score would be -dB(return loss)

                    S This user is from outside of this forum
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                    wrote on last edited by
                    #103

                    Genius concept. just need a catchy name.

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                    • machinist@lemmy.worldM [email protected]

                      My bad, not design authority as that's a specific thing. They are allowed to design and the guy rubber-stamping often doesn't catch much.

                      Ultimately, this is a religious issue. Engineers are heathens that should be burned at the stake. Occasionally, you meet a good one who's been housetrained by the people that actually do the things.

                      S This user is from outside of this forum
                      S This user is from outside of this forum
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                      wrote on last edited by
                      #104

                      I can say the opposite. I have had craft, in the field, make design choices without engaging the engineer, and now the client is angry because shit isn't working right, because someone made a command decision in a silo.

                      Drawings are never perfect. Most of the time, engineers are working off client provided drawings that aren't very accurate, so the assumptions are bad when the shovel hits the ground.

                      That is neither the craft, nor the engineer's fault.

                      I am an EE and I can't magically know that the last guy to hang an antenna put it 10' higher than he was supposed to and the client doesn't want to pay for a site visit.

                      So now my tower climber is pissed because he has to make multiple climbs, take photos and then wait with his thumb up his butt, while I am trying to get the client to agree to a plan, and he is going to blame me.

                      Now I am a Construction Manager, and I get pissed at the engineer when he provides drawings that don't give even half the info I need.

                      I'll buy the material, no problem, but you need to give me a fucking BoM because I don't know what your design criteria is and I am not going to guess.

                      I'm sure as hell not going to let my craft buy whatever coax connection is available, and fits, to connect a feedline.

                      They don't know what actually goes into that.

                      Likewise, an engineer can't tell if an existing conduit has enough room to snake a new cable because the cable schedule isn't always accurate. But then my craft doesn't know how to calculate conduit fill b because they don't know the types/level of voltages in the existing lines.

                      I have also NEVER known an electrician who, when first laying eyes on a job, not complain about the terrible work performed by the previous electrician.

                      Working brownfields is always going to be a pain and everyone loves to bitch when the job ends up being harder than it should have been.

                      I will say this. I love being a construction manager 100 times more than being an engineer, but having that background is fucking invaluable because I can spot problems from further away and can usually resolve them quickly.

                      machinist@lemmy.worldM 1 Reply Last reply
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                      • pugjesus@lemmy.worldP [email protected]
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                        m3t00@lemmy.worldM This user is from outside of this forum
                        m3t00@lemmy.worldM This user is from outside of this forum
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                        wrote on last edited by [email protected]
                        #105

                        https://xkcd.com/730/

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                        • M [email protected]

                          It's chemicals that make signals jump between neurons in your head. Electricity acts entirely withing single neurons.

                          Also, that's a control spell, not a summoning one.

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                          wrote on last edited by [email protected]
                          #106

                          that's crazy to think about. which NT is responsible for sending a signal along my vagus nerve to my brain? what NTs regulate the functions of the sympathetic nervous system? how can transport as quickly as my body reacts? I need to know more!

                          how quickly do NTs even travel? it feels like electricity because it's nearly instantaneous! how do they do that so fast???

                          M 1 Reply Last reply
                          1
                          • bjoern_tantau@swg-empire.deB [email protected]

                            Yes, because if you take the power away it stops existing.

                            L This user is from outside of this forum
                            L This user is from outside of this forum
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                            wrote on last edited by
                            #107

                            Apparently stops existing, to outside observers who've never been able to see it anyway.

                            1 Reply Last reply
                            0
                            • pugjesus@lemmy.worldP [email protected]
                              This post did not contain any content.
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                              wrote on last edited by
                              #108

                              Full bridge rectifier¿

                              Thick eye brows intensifies!

                              trihilis@ani.socialT 1 Reply Last reply
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                              • machinist@lemmy.worldM [email protected]

                                My bad, not design authority as that's a specific thing. They are allowed to design and the guy rubber-stamping often doesn't catch much.

                                Ultimately, this is a religious issue. Engineers are heathens that should be burned at the stake. Occasionally, you meet a good one who's been housetrained by the people that actually do the things.

                                Z This user is from outside of this forum
                                Z This user is from outside of this forum
                                [email protected]
                                wrote on last edited by
                                #109

                                Man, this false air of superiority you're exuding is pretty weird. There are bad engineers, and bad skilled trades people, and bad managers, and bad business people. Every walk of life have people that are bad at their jobs, it's by no means unique to any one class of worker.

                                machinist@lemmy.worldM 1 Reply Last reply
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                                • pugjesus@lemmy.worldP [email protected]
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                                  wrote on last edited by
                                  #110

                                  the diagram is an AC to DC converter.

                                  1 Reply Last reply
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                                  • T [email protected]

                                    that's crazy to think about. which NT is responsible for sending a signal along my vagus nerve to my brain? what NTs regulate the functions of the sympathetic nervous system? how can transport as quickly as my body reacts? I need to know more!

                                    how quickly do NTs even travel? it feels like electricity because it's nearly instantaneous! how do they do that so fast???

                                    M This user is from outside of this forum
                                    M This user is from outside of this forum
                                    [email protected]
                                    wrote on last edited by
                                    #111

                                    it feels like electricity because it’s nearly instantaneous!

                                    It takes hundreds of ms for a signal to go from your brain to your foot. Electricity on wires travels several times around the world in that time.

                                    But for most of the distance the signals do travel as electricity. (At least the ones that get to be electricity, our brain has several kinds of signals.) It's just a particularly slow form of electricity.

                                    1 Reply Last reply
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                                    • M [email protected]

                                      Yeah but it's too realistic, I want something convenient! Let me read one book and gain the power to create floating ice! Not read like 5 giant books and stufy for years so that I can create a microwave 😔

                                      No shade to microwaves, one of my favorite magic items

                                      R This user is from outside of this forum
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                                      wrote on last edited by
                                      #112

                                      Hello every wizard protagonist in every fantasy YA novel ever.

                                      1 Reply Last reply
                                      0
                                      • Y [email protected]

                                        Full bridge rectifier¿

                                        Thick eye brows intensifies!

                                        trihilis@ani.socialT This user is from outside of this forum
                                        trihilis@ani.socialT This user is from outside of this forum
                                        [email protected]
                                        wrote on last edited by
                                        #113

                                        First thing that went through my mind lol

                                        C 1 Reply Last reply
                                        1
                                        • trihilis@ani.socialT [email protected]

                                          First thing that went through my mind lol

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                                          wrote on last edited by
                                          #114

                                          Yes, with Mehdi's enthusiastic pronounciation, +1

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