Uncertain about Quantum Uncertainty

CatManDoo's Wonderful World of Science, Math, etc

Over the last 2 weeks, I have been thinking a lot about quantum mechanics. It is a strange, completely bizarre way of thinking that came from an even more bizarre experiment. We start with that experiment, the start of what would become an entire branch of science.

Perhaps the most famous experiment in quantum physics is the double slit experiment. In this experiment, the setup was as shown below:

The electron gun would shoot electrons (a lot of them) at the slits. Now, based on our knowledge of particles and the way they work, we’d expect that the electrons would only appear behind the slits in a straight path from the gun. And they do.

This is what the detections look like when the electrons pass through. However, the weird part is that when the scientists doing the experiment stopped observing the experiment, but still collected the detections on the…

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