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First ever photograph inside a hydrogen atom

hydrogen atom

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#16    GreenmansGod

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Posted 31 May 2013 - 01:21 AM

Thank you, sepulchrave, you're the man (or woman.)  I had to read them twice but I got it. :nw:

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#17    Merc14

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Posted 31 May 2013 - 04:03 AM

View Postsepulchrave, on 30 May 2013 - 07:13 PM, said:

Ummm.... the concepts of ``wave'' and ``particle'' are thrown around a lot in quantum mechanics (``wave-particle duality'', etc.). This is because the important aspects of the behaviour of waves (like water waves) and particles (like billiard balls) are understood by most people.

This is just a simplification, however.

A quantum object has no ``innate form'', rather its behaviour depends on its environment, for example:
  • A quantum object that is in free space and not interacting with anything will become a wave.
  • (A human alone on a beach will run around bare naked.)
  • A quantum object that is strongly interacting with other things and extremely tightly confined to one location will become a particle.
  • (A human interacting with friends at a fancy dinner party will wear uncomfortable dress clothes and sit quietly in one spot.)
But these two extremes rarely happen.

In most cases a quantum object is sort of confined to a region, but still has some freedom of movement; for example an electron bound to an atom is localized to a region of space, not a single spot. (A human at a beach with other people will wear a swim suit and run and splash in only certain areas.)

This behaviour isn't exactly wave-like or particle-like; so it can be hard to describe. Because it isn't physics without confusing pseudo-german words, we call these states ``eigenstates'': the natural behaviour of an object in a particular environment.

For example, the eigenstates of a single electron bound to a hydrogen atom in  free space are called ``hydrogen wave functions'', they can be easily calculated and are shown here.

For the experiment in question in this thread, the hydrogen atom is not in free space, but in an external electric field. So the eigenstates, or natural behaviours of single electrons bound to hydrogen atoms in an external electric field, are not exactly the same as the natural behaviours of a single electron bound to a hydrogen atom in free space.

Eigenstates are usually defined by ``quantum numbers''; so a different set of quantum numbers is needed to describe an electron wavefunction bound to a hydrogen atom in an external electric field than is needed to describe an electron wavefunction bound to a hydrogen atom in free space.

I just have to say you did a great job of simplifying this for the masses.  Thanks.

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#18    sepulchrave

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Posted 31 May 2013 - 05:03 AM

View PostDarkwind, on 31 May 2013 - 01:21 AM, said:

Thank you, sepulchrave, you're the man (or woman.)  I had to read them twice but I got it. :nw:

View PostMerc14, on 31 May 2013 - 04:03 AM, said:

I just have to say you did a great job of simplifying this for the masses.  Thanks.

No problem!

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#19    Irrelevant

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Posted 31 May 2013 - 07:57 AM

View Postfreetoroam, on 30 May 2013 - 05:40 PM, said:

Posted Image


Does your post come with subtitles?

im just quoting this because that picture is a riot...Frank melton used it on me in one of my posts , its very funny! .


#20    freetoroam

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Posted 31 May 2013 - 10:48 AM

View PostIrrelevant, on 31 May 2013 - 07:57 AM, said:

im just quoting this because that picture is a riot...Frank melton used it on me in one of my posts , its very funny! .
haha, its one of my favorites. I reckon it should be included with the standard smilies, especially on this site. :yes:

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#21    shrooma

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Posted 31 May 2013 - 11:07 AM

ryan reynolds-
born to look 'huh?!'
:-)

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#22    Irrelevant

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Posted 31 May 2013 - 11:52 AM

An electron is one of the smallest particles in nature and they interact with individual photons of light. There's no way that enough photons could reflect back from a single electron to portray it image to any recording device.




#23    Irrelevant

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Posted 31 May 2013 - 11:53 AM

An electron is one of the smallest particles in nature and they interact with individual photons of light. There's no way that enough photons could reflect back from a single electron to portray it image to any recording device.




#24    and then

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Posted 31 May 2013 - 01:08 PM

View PostIrrelevant, on 31 May 2013 - 11:53 AM, said:

An electron is one of the smallest particles in nature and they interact with individual photons of light. There's no way that enough photons could reflect back from a single electron to portray it image to any recording device.
Not yet.....

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#25    Mys-terious

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Posted 31 May 2013 - 01:18 PM

View PostTaun, on 29 May 2013 - 04:06 PM, said:

Have they ever deduced just how fast those electrons are when they orbit the nucleous? is it Light Speed?

Close to "light speed", I would imagine, but not quite as fast. Although electrons don't necessarily orbit. :)


#26    Irrelevant

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Posted 02 June 2013 - 02:40 AM

View Postand then, on 31 May 2013 - 01:08 PM, said:

Not yet.....

whilst i never say never ,on this one it could be almost certain...but not yet is cute. lol


#27    Lex540

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Posted 05 June 2013 - 10:28 AM

hokay mahwina





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