• shalafi@lemmy.world
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    2 months ago

    That line was actually Trump being his narcissistic self. In context he’s saying, “Nobody knows how important magnets are but me.” And then he mumble fucks around about magnets being in everything.

    Somebody whispered in his ear that China halting rare earth exports is going to fuck up a broad range of industries. His dementia locked onto, “Magnets good. China has magnets. China no give magnets.” He then goes to mumbling how he’s threatening and begging Xi.

    That also explains his idiot rant to our Navy in Japan week before last. He’s explaining that we need to get away from magnetic aircraft and ordnance lifting systems and go back to steam.

    He’s trying to explain all this without admitting that he poked the tiger and the tiger poked back.

    • starman2112@lemmy.world
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      2 months ago

      I like how the guy who was elected because he says what he thinks always has to have his comments put into context. He didn’t literally mean that nobody knows what a magnet is (despite literally saying “nobody knows what a magnet is”), he meant something totally different!

        • starman2112@lemmy.world
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          2 months ago

          How well did you do on those reading comprehension tests in school?

          Probably better than you, considering you read a whole ton of shit that I didn’t write. When did I say you were condoning him??? I just said that it’s funny that the guy that conservatives say “speaks his mind” has to have every statement interpeteted nonliterally

  • ColeSloth@discuss.tchncs.de
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    2 months ago

    To drop my reply from a similar post:

    To be fair: "A magnet works because negatively charged electrons repel each other. "

    "Why do negatively charged electrons repel each other? "

    “… Well … Ok, so hear me out. You’re going to need to understand quantum mechanics and then the fermion principal. Then you’ll know that the electrons aren’t allowed to occupy the same space, and the easiest way to avoid being in the same space is to not touch each other. The electrons know they aren’t allowed to touch because they’ve studied fermions.”

    • ameancow@lemmy.world
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      2 months ago

      “Look man, shit just be doing what it does because it is what it is. If weren’t that way everything would be soup or darkness.”

      Physics at any point when you ask “why” enough.

    • WolfLink@sh.itjust.works
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      2 months ago

      To be fair: "A magnet works because negatively charged electrons repel each other. "

      This is the Coloumbic (electrostatic) force, which is related to magnetism but this explanation would be insufficient to explain magnetism.

      “… Well … Ok, so hear me out. You’re going to need to understand quantum mechanics and then the fermion principal. Then you’ll know that the electrons aren’t allowed to occupy the same space, and the easiest way to avoid being in the same space is to not touch each other. The electrons know they aren’t allowed to touch because they’ve studied fermions.”

      This is the Pauli exclusion principle, which does act like a force, but is not the same as the electrostatic force or magnetism.

      Magnetism is moving electrons repel/attract/affect each other depending on the direction they are moving.

      The simplest explanation for that I know of is that force needs to exist alongside the electrostatic force for the motion of electrons to be consistent with relativistic time and space dilation effects.

      And no, that’s not a simple explanation, and it requires explaining relativity, and at the end of the day the best explanation we’ve got for the electrostatic force is more or less “electrons repel each other because they do”.

      • MOCVD@mander.xyz
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        2 months ago

        All models are wrong, some models are useful. A model that is 100% correct is just reality. Science and physics boils down to observation followed by explanation which comes in the form of modeling.

        New physics started when plank discovered quantization while integration raleigh-jean and weins laws for blackbody radiation. Schrodinger proposed a model among several proposed models and his fit the best.

        Anyone who is surprised by science not knowing all the answers had fundamentally misunderstood science.

        Finally, five fields: electromagnetic, gravity, strong, weak, and higgs. Magnetism is just an effect of leptons interacting with the electric field. That’s the model, one day when we can explain more with another model there will be more questions.

        Bonus points for anyone who knows the quote “who ordered that?”

      • ColeSloth@discuss.tchncs.de
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        2 months ago

        FYI; electrons are always negatively charged and protons always positively charged. So electrons, for instance, will always want to repel each other.

        But your conclusion is a more direct answer to the silly conclusion I gave. Which boils down to, “we don’t really know”.

  • Fedizen@lemmy.world
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    2 months ago

    From what I’ve seen Feyman was more than a little pedantic and he liked to emphasize that science doesn’t answer “why” it answers “how”. So if ICP asked that question Feyman would say “take an undergrad physics course because its not easy to explain in a soundbite”

  • Kindness is Punk@lemmy.ca
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    2 months ago

    Magnets work by pulling all the God from our brains to create the God rays so that life can be sustained on earth.

  • biofaust@lemmy.world
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    2 months ago

    I tried a game that came free with my GOG account years ago, MagRunner.

    Overpopulation, huge zaibatsu that is into digitizing people and they develop an incredible new technology in space: MagTech! Magnetic technology!

    I guess the devs were being tongue-in-cheek at the time, but now it’s not funny anymore.

    Terrible Portal wanna-be, by the way.

  • School_Lunch@lemmy.world
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    2 months ago

    I never really thought about it, but isn’t the question actually “why do opposite charges attract?” Doesn’t it come down to stability? The universe likes equilibrium and combining opposite charges is an attempt to equalize.