The basis of this experiment goes like this.
The particles when not measured (or observed) go through two holes and leave a pattern of projectiles when they hit the wall.
‘But when observed, they leave a pattern like a wave (ripples on a pond) when they hit the wall.
‘This is the greatest mystery in quantum mechanism and why CERN exists because nobody knows why the particles change behavior when observed.
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it is cool to learn, and there are amazing things.
Frankly, I think it's junk science, and we're seeing the results of a fairly "simple" bit of lack of control. But it keeps people busy and playing in their labs, so I guess that's fine.
Nobody has refined the tools that are creating the photons themselves, so there is no real control over what the photons are doing as they spin out of the lasers, or what happens to the photons as they pass the various lenses and mirrors. We can "direct" them, but we don't actually fathom what is happening at the sub-atomic level of the atoms that are being excited in the laser in the first place, nor how they are being effected by the densities of the lenses. Our understanding of standing electrical fields is infantile, and nearly nobody makes efforts to ground all the equipment involved. And lets say they did, as we're dealing with sub-atomic particles, even if you grounded 1 side of a 3 inch board, the distance between the slit and the ground line would be universe huge compared to the size of the photon as particle, even though to us the discharge would be nearly instant. The photon, of course, would have been long gone before the reset of ground level.
Until that source, that lens, and those mirrors are a single layer of atoms, and they are bouncing and rotating in perfect harmony, and you can keep them in that condition while they expel, split, or reflect photons, there's gonna be forces at work from the directional differences of each photon, and any effect they have on gas between, or likely even each other in vacuum. I'd venture these interference patterns also shift quite routinely based on Hertz input to the emitters? Dunno, haven't spent time on it, because it looks like reasons to fund thought experiments, instead of tools in use.
Maybe, let's admit, there is a difference because we're observing, ok? But if we are factual, I can say that a 10pound chicken weighs 195 pounds when I stand on the scale with it, and this is also, obviously half-truth, as "being changed by the observer." But that's just what we have to accept with Quantum-Physics?
More likely there's a simple background energy shift from the creator of the experiment, the observer, and his tools.
Even more likely the double-slit problem has to do with the classical electrical/gravitational forces as they are influenced by an item with a hole in the center, vs two holes, and being charged by the passing photons and creating "standing waves" in the slit-board, which in turn "stabilize" the flight path of the "photon" into "discernable" patterns.