>>510952296
That is not a real experiment. You can't measure a photon without destroying it. I believe a version of the experiment has been done with electrons (or perhaps ions, I forget), although it wasn't done until some years after Feynman popularised it as a thought experiment. If you want to understand le quantum mechanics, I suggest you start with the Stern-Gerlach experiment.
>>510953760
You're the retard and
>>510953623
is quite right. It's impossible to detect photons without destroying them.
It's really amazing how fucking retards make .jpgs about physics which they don't know anything about, then other retards offer their hot opinions about it with all the assumed authority of a seasoned professor.