• Zerush@lemmy.ml
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    4 months ago

    In short

    😐 = Electron if you look

    = Electron if you don’t look

  • RememberTheApollo_@lemmy.world
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    4 months 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.

    • Björn Tantau@swg-empire.de
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      4 months ago

      That’s not really it. You need something that measures the state of the electron. Merely looking in the direction is not enough. It has to be something that interacts with the electron.

      A camera alone isn’t enough. But light (eg photons) with enough energy should be enough. But then that energy will manipulate the electron. If you had a completely dark room and pointed a camera at the experiment it wouldn’t change anything.

      It’s kind of like having your cake and eating it too.