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fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 1 year ago

double slit

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double slit

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fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 1 year ago
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  • RememberTheApollo_@lemmy.world
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    1 year ago

    I think the meme is just poking fun at the physics behind the whole thing, but in case anyone doesn’t know:

    It’s called the observer effect, and it happens because:

    This is often the result of utilizing instruments that, by necessity, alter the state of what they measure in some manner.

    And particularly in the double-slit experiment:

    Physicists have found that observation of quantum phenomena by a detector or an instrument can change the measured results of this experiment.

    https://en.wikipedia.org/wiki/Observer_effect_(physics)

    So for anyone who wants to have a surface understanding of the observer effect, the wiki does a fair job of the basic explanation.

    • IlIllIIIllIlIlIIlI@lemmy.world
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      1 year ago

      Yep, the observer it is not only observing, it is interacting in order to measure.

    • humbletightband@lemmy.dbzer0.com
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      1 year ago

      The meme is not about the observer effect or wavefunction collapse

      • 0ops@lemm.ee
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        1 year ago

        Yeah it is. From that wiki article:

        A notable example of the observer effect occurs in quantum mechanics, as demonstrated by the double-slit experiment"

        • humbletightband@lemmy.dbzer0.com
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          1 year ago

          The meme is not about the double slit experiment

          • nothacking@discuss.tchncs.de
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            1 year ago

            It is clearly titled “double slit”.

          • 0ops@lemm.ee
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            1 year ago

            Look, I’m not gonna keep quoting Wikipedia at you until you get it, so believe what you want I guess

            Edit: see also the title of the post

            • DragonTypeWyvern@literature.cafe
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              1 year ago

              deleted by creator

      • troglodytis@lemmy.world
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        1 year ago

        Super curious, and promise not to argue. What, in your summation, is the meme about?

        • RampantParanoia2365@lemmy.world
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          1 year ago

          Petulant electrons, I guess.

        • humbletightband@lemmy.dbzer0.com
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          1 year ago

          This meme is about the difference in scales. When your electron’s delocalization is much greater than other scales in your system, the electron behaves like a wave. Otherwise if the electron’s delocalization is the smallest scale, it behaves like a particle.

          If you can look at the setup of an experiment with your bare eyes, the electron behaves like a particle. If you cannot - it may behave like a wave.

          • Blue_Morpho@lemmy.world
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            1 year ago

            You can see wave properties from a double slit setup with your bare eyes. Here’s someone who did it with a cardboard box.

            https://youtu.be/Iuv6hY6zsd0?si=TIlEJa4AJQhh8da4

            If you setup a detector that measures which path the particles took, the interference pattern disappears- again something you can see with your bare eyes.

            • humbletightband@lemmy.dbzer0.com
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              1 year ago

              For electrons you can’t do it. Either way the interference is not a quantum effect and the detector that you are talking about is a simple reemiting device that detects the wave vector and creates the wave in the same direction. Now live with that.

              • Blue_Morpho@lemmy.world
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                1 year ago

                For electrons you can’t do it.

                https://www.researchgate.net/figure/Electron-Fringe-Pattern-after-a-10-electrons-b-100-electrons-c-3-000_fig2_253550263

                • humbletightband@lemmy.dbzer0.com
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                  1 year ago

                  Why are you giving me a theoretical paper? It doesn’t even have sizes, but I assume that the distance between two holes is about 1um, which you cannot see with your bare eyes

                  • Blue_Morpho@lemmy.world
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                    1 year ago

                    https://www.hitachi.com/rd/research/materials/quantum/doubleslit/index.html

                    So bacteria don’t exist either because you need a microscope to see them?

              • FonsNihilo@lemmy.ca
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                deleted by creator

                • humbletightband@lemmy.dbzer0.com
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                  1 year ago

                  Yeah 😞

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