Mind = Blown

Does not compute, I call shenanigans :p
How can simply observing the event change the outcome?

(I know nothing about physics)


Because you ae not simply observing as in watching. You use a detection screen which changes the way the photons react. There is a thought- experiment called Wheelers delayed choice experiment which attempts to address this issue.
 
Wiki said:
The momentum of the particle is proportional to the wavelength of one of these waves, but it could be any of them. So adding a more precise position measurement adds more waves – meaning the momentum measurement becomes less precise (and vice versa).
 
mind fudge.. I've just finished my Physics alevel (hopefully got an A, mega hoping) and i've read steven hawkins book (history of universe, or something like that), but i have no explanation for this, i have never seen this phenomina explained so vididly. Wave particle duality is a common phenomia, and one that is reasonably easy to explain, but this is something different... i too would like to find an explanation of this
 
Here's a theory, the mass of electrons are so little that the mass of the metal slit causes a gravitational field which will effect the electrons course causing an interference seen on the wave demonstration? Again the measuring device is large enough to alter electrons path due to mass differences pulling it to the one slit.
 
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Here's a theory, the mass of electrons are so little that the mass of the metal slit causes a gravitational field which will effect the electrons course causing an interference seen on the wave demonstration?

Why does it change when it's watched then? :D
 
Nice video, good way of learning that kind of complex stuff :)

funny-pictures-cat-survived-experiment.jpg
 
i think this is to do with the plank constant ( i havnt looked on wiki, and i probably should first), - that is the smallest packet of energy that can be transferred ( waves conatain photons, packets of energy that are transported from one spot to another) therefore since there is a limit on the smallest ammount of energy we can send (like a really dim torch), there is a limit on what we can observe, because on the quantum level, that "light" that we use to see stuff starts to affect what actually happens. ( the dim torch in this example affects the outcome because it gives the particle energy and changes the outcome, and therefore we cannot know what really happens)- this may however be an explanation of schroienders Cat, but i think it is still relevant. However it does not clearly explain the perfect dual pattern that is left upon observation...

- this does not neccersarily have relevance to this but JAYMAX- this is how observation can affect an outcome.. I think i'm breifley (and probably wrongly) explaining the Unsertainty principle.
 
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The position operator and momentum operator have a non zero commutator.

It means that they are conjugate variables, so you cannot know both to precisely.
 
Brilliant video. I did some units in QM when I was at uni, mind blowing stuff. The world is a very different place at different energy scales other than the narrow spectrum we observe day to day.
 
Cant believe I actually understood that video. Shows how crappy the teaching methods were when I was at school and probably are today. I say replace all physics teachers with the guy in the video!
 
Does not compute, I call shenanigans :p
How can simply observing the event change the outcome?

(I know nothing about physics)

Because to observe is to interfere!! How do you observe? By using detectors, photons, energy, etc, etc...

Anything you observe is instantly changed from it's previous state merely because you have interacted with it.
 
Yeh was very enjoyable. If lessons had that cool little dude in them I might have paid more attention :p
 
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