Godlike Productions - Discussion Forum
Users Online Now: 1,902 (Who's On?)Visitors Today: 486,750
Pageviews Today: 1,437,074Threads Today: 942Posts Today: 18,184
11:53 PM


Rate this Thread

Absolute BS Crap Reasonable Nice Amazing
 

Quantum mechanics flummoxes physicists again

 
Anonymous Coward
User ID: 1048638
United Kingdom
07/25/2010 09:33 PM
Report Abusive Post
Report Copyright Violation
Quantum mechanics flummoxes physicists again
If you ever want to get your head around the riddle that is quantum mechanics, look no further than the double-slit experiment. This shows, with perfect simplicity, how just watching a wave or a particle can change its behaviour. The idea is so unpalatable to physicists that they have spent decades trying to find new ways to test it. The latest such attempt, by physicists in Europe and Canada, used a three-slit version — but quantum mechanics won out again.

In the standard double-slit experiment, a wide screen is shielded from an electron gun by a wall containing two separated slits. If the electron gun is fired with one slit closed, a mound of electrons forms on the screen beyond the open slit, trailing off to the left and right — the sort of behaviour expected for particles. If the gun is fired when both slits are open, however, electrons stack along the screen in comb-like divisions. This illustrates the electrons interfering with each other — the hallmark of wave behaviour.

Such a crossover in behaviour — known as wave–particle duality — is perhaps not too hard to swallow. But quantum mechanics gets weirder. Slow down the gun so that just one electron at a time reaches the screen, and the interference pattern remains. Does each electron pass through both slits at once and interfere with itself? The obvious way to answer this question is to watch the slits as the gun fires, but as soon as you do this the interference pattern disappears.

It's as if the electrons know when they're being watched and decide to behave as particles again. According to Nobel laureate Richard Feynman, the phenomenon "has in it the heart of quantum mechanics. In reality, it contains the only mystery".

Mind the gaps


The new three-slit version of the experiment

[link to www.nature.com]
Anonymous Coward
User ID: 964953
United States
07/25/2010 10:00 PM
Report Abusive Post
Report Copyright Violation
Re: Quantum mechanics flummoxes physicists again
I cannot define the real problem, therefore I suspect there's no real problem, but I'm not sure there's no real problem....
Hanky Plancky
User ID: 1047849
United States
07/25/2010 10:11 PM
Report Abusive Post
Report Copyright Violation
Re: Quantum mechanics flummoxes physicists again
It tells you that this reality is a rendered virtual reality.Nothing comes into this reality in physical form until it needs to. Reality exists only as a probability wave until we take that measurement=observe it.Really quite simple except to an objective mind.Reality is subjective, personal.
Hades!
User ID: 1038633
United States
07/25/2010 10:18 PM
Report Abusive Post
Report Copyright Violation
Re: Quantum mechanics flummoxes physicists again
I think therefore I am.

So basically the universe is mind fucking us to hell. NICE!
Anonymous Coward
User ID: 1045536
United States
07/25/2010 10:20 PM
Report Abusive Post
Report Copyright Violation
Re: Quantum mechanics flummoxes physicists again
It tells you that this reality is a rendered virtual reality.Nothing comes into this reality in physical form until it needs to. Reality exists only as a probability wave until we take that measurement=observe it.Really quite simple except to an objective mind.Reality is subjective, personal.
 Quoting: Hanky Plancky 1047849



Wait.

Isn't that like saying when a tree falls in the forest and there are no humans around then the tree makes no sound?

Which is completely untrue because sound waves exist regardless of the presence or humans.

A mountain is always there regardless of it being observed.

A rock does not materialize only when a human walks near it, the rock was there, is there, and will continue to be there after the human has left.


Maybe I'm being to literal. This could very well have nothing to do with what you are saying, and I'm sorry if I am talking about something not even remotely relevant.
Anonymous Coward
User ID: 1043693
United States
07/25/2010 10:30 PM
Report Abusive Post
Report Copyright Violation
Re: Quantum mechanics flummoxes physicists again
Wait.

Isn't that like saying when a tree falls in the forest and there are no humans around then the tree makes no sound?

Which is completely untrue because sound waves exist regardless of the presence or humans.
 Quoting: Anonymous Coward 1045536


Sound waves like photon "waves" exist in a ghost-like reality. It takes something on which to bounce those sound-waves against to produce sound, hence the person hearing the tree fall causes the sound. Get it?

A mountain is always there regardless of it being observed.
 Quoting: Anonymous Coward 1045536

You don't know that and will NEVER know that because you have to see it to confirm that it is there which, according to quantum mechanics, is what "causes" the mountain to solidify (become a particle instead of a ghost-like wave).

A rock does not materialize only when a human walks near it, the rock was there, is there, and will continue to be there after the human has left.
 Quoting: Anonymous Coward 1045536


Same answer as above.
Hades!
User ID: 1038633
United States
07/25/2010 10:33 PM
Report Abusive Post
Report Copyright Violation
Re: Quantum mechanics flummoxes physicists again
I was thinking of the tree falling analogy as well.

If a tree falls in the forest and no one is around to hear it, does it make a sound?

yes it makes a sound.
Anonymous Coward
User ID: 1048155
United States
07/25/2010 10:36 PM
Report Abusive Post
Report Copyright Violation
Re: Quantum mechanics flummoxes physicists again
They dont know shit. They are too dense to figure out what photons are and how it has its characteristics. They dont even understand teh accelerating expansion of teh universe. Ihave, they can go fucck themselves
Anonymous Coward
User ID: 1048155
United States
07/25/2010 10:37 PM
Report Abusive Post
Report Copyright Violation
Re: Quantum mechanics flummoxes physicists again
I was thinking of the tree falling analogy as well.

If a tree falls in the forest and no one is around to hear it, does it make a sound?

yes it makes a sound.
 Quoting: Hades! 1038633


Ah that's all wrong too. I have all this shit figured out, had for about a decade. Since I'm not a research scientist they'll just steal my ideas and lock me up in teh funny farm.
Dr. Quantum
User ID: 1008291
United States
07/25/2010 10:46 PM
Report Abusive Post
Report Copyright Violation
Re: Quantum mechanics flummoxes physicists again
Wait.

Isn't that like saying when a tree falls in the forest and there are no humans around then the tree makes no sound?

Which is completely untrue because sound waves exist regardless of the presence or humans.

We'd have to hear it for it be a sound, wouldn't we? Sure, the waves exist - that doesn't mean we've observed the sound and correlated it. :)


A mountain is always there regardless of it being observed.

A rock does not materialize only when a human walks near it, the rock was there, is there, and will continue to be there after the human has left.


Maybe I'm being to literal. This could very well have nothing to do with what you are saying, and I'm sorry if I am talking about something not even remotely relevant.


I see your point, actually. The truth is, this does happen on a quantum world even though it makes no sense in a macro (micro size and up) world.
Anonymous Coward
User ID: 1048577
Portugal
07/25/2010 11:23 PM
Report Abusive Post
Report Copyright Violation
Re: Quantum mechanics flummoxes physicists again
the universe is inteligent
Anonymous Coward
User ID: 1038633
United States
07/26/2010 12:27 AM
Report Abusive Post
Report Copyright Violation
Re: Quantum mechanics flummoxes physicists again
the universe is inteligent
 Quoting: Anonymous Coward 1048577


This makes sense. I like this so I think I'll stick with this idea. I was thinking this as well. More like, the Tao which is an extension of God is intelligent. I'll keep this to myself however.





GLP