Quantum Physics video: mind-blowing

[xKagex]

http://video.google.com/videoplay?do...uantum+physics

In physics, wave-particle duality holds that light and matter can exhibit properties of both waves and of particles. It is a central concept of quantum physics.

Watch the video and see that light and matter show signs of 'consciousness'.

Also, doesn't the fact that observation alters results mean that
THE SCIENTIFIC METHOD IS WRONG!!!!!!!!!!!?

[KevC]

Yupyup, learned that in gr11 or so right? Pretty cool. Intro to Quantum was a very enjoyable class last semester.

[hyperion]

owned by quantum physics.

[Emancipated]

Can someone explain that again? If a single particle electron is fired without the observer, it will act like a wave, thus colliding and produce the wave splatter; but with an observer, it will act like a marble and go through one or the other slit? I don't understand how the intervention of an observer can alter it's property.

BTW, the voice over sounds like Leonard Suskind's.

[kinggori]

God, I just hate this quantum crap

[gprime]

That was actually entertaining. I wouldn't mind if all my physics lessons were taught like this :P

[civ@uw]

Can someone explain that again? If a single particle electron is fired without the observer, it will act like a wave, thus colliding and produce the wave splatter; but with an observer, it will act like a marble and go through one or the other slit? I don't understand how the intervention of an observer can alter it's property.

BTW, the voice over sounds like Leonard Suskind's.

I think it's because the "observer" has to interact with the particle. Not entirely sure.

Also I am pretty sure the video is at least partly wrong. There will be interference even when there is only a single slit.

[kingsley]

Also I am pretty sure the video is at least partly wrong. There will be interference even when there is only a single slit.

lol, I can tell you don't have your PhD in physics yet

[Oni-kun]

that was cool

[civ@uw]

lol, I can tell you don't have your PhD in physics yet

So single slit diffraction isnt real?

Edit: this is all based on what I've learned from first year physics, so if you've done a higher level course I'd like to know whats wrong with what i've said.

[JoKeRr]

you have to understand that each electron produces a electric field which follows divergence theorem and each MOVING electron also produces magetic field which curls around the direction of moving charge.

Both electric field and magnetic field produces force, however magetic force is greater than electric by a factor of speed of light. But in regular media (air), electron travels slower than the speed of light.

When you get a electron gun shooting infinitely many electrons, you will need to use statistical mechanics.

Quantum mechanics is very deep stuff dealing with matters at sub atomic size, many 2nd and 3rd yr quantum mechanics course only deals with a small portion of it, most of the time it's only a brief overview.

I think for this particular video, you could explain it with scattering theory and the quantum theory of many-particle systems, which is beyond me.


ps: the only thing that propagates in a straight line all the time is LASER.

[traktion]

Thats creepy how can an observer alter any experiment???

When I saw that movie it never had that scene in it, wierd. Good movie though besides the corny acting.

[Brownbear]

agreed, this was very cool.
If all lessons were taught like this, I'd be an honour student.

Got anymore of these?

[FastFokker]

agreed, this was very cool.
If all lessons were taught like this, I'd be an honour student.

Sounds like a business opportunity... open a post-secondary institution that teaches everything through cartoons.

[Crotchety Old Man]

Thats creepy how can an observer alter any experiment???

Observers alter every experiment.