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Dangerous Interjection Into Your Day

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I figure there is maybe a smart person, or two, in here and i am curious about something. I have a small background in physics, but i am more of a visual learner and therefor i love metaphors. They are more tangible to me.
I have in all my years failed to find any metaphors for Quantum Mechanics. The Metaphors i see on tv are for like 4yr old's. They are grossly inconsistant with what i know to be true but that make sense for the 99.99999% of people who couldn't tell a discussion of Quantum Mechanics from Car Mechanices and couldn't care less.
but i, unfortunatly, care about this.

I am a sophmore physics major hoping to teach when/if i graduate. I know later i will incounter examples to explain it later on when i study it closer, but a metaphor used for a physics major in college will have to be heavily modified for students in highschool.
I am kind of a TA and kind of a Student teacher and i have been asked to explain it. I fail to give someone who is uninterested in physics and doesn't have 25min a glimpse of it.

BTW...be nice, nerds have feelings too.

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- 0 +

Go to the H Bar and you should be able to find a metaphor. *hint hint*

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<font color=red>"Like what?"</font color=red>
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Reply to ksoth
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I can go to the H Bar....but how will i explain how i got there?

Reply to pickxx
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Um, like, in an ice cream truck or something... :/

--
"There's more to life than profits."
<font color=red>"Like what?"</font color=red>
"Like, you know, Slurpees and stuff."
<A HREF="http://images.southparkstudios.com/media/video/707/slurpees.mov" target="_new">South Park</A>

Reply to ksoth
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Oh, come on...if you knew quantum Mechanics that might be amusing to you.
Although you could know it well and you are just mocking me....which is sad, because i am delicate and i have a fragile and almost nonexistant ego.

Reply to pickxx
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Nah, I'm not mocking you.

What exactly about quantum mechanics are you having a problem with finding a metaphor for? Something specific, or just quantum mechanics in general? I'm not expert, but I do know some about it, and have read some metaphors (the H Bar), but to just start on about everything would probably take too long. Tell me some specifics about what you are having difficulty with and I'll try to help you.

--
"There's more to life than profits."
<font color=red>"Like what?"</font color=red>
"Like, you know, Slurpees and stuff."
<A HREF="http://images.southparkstudios.com/media/video/707/slurpees.mov" target="_new">South Park</A>

Reply to ksoth
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you seem quite full of yourself. humble yourself mortal, now drop and give me plenty

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Reply to phial
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I don't think it's really possible to find great metaphors for Quantum. Anyone who wants metaphors shouldn't be studying it anyways....

QM is tough. You don't learn from metaphors, you learn from constant repetition, reading, and studying.

Quote :

Quantum mechanics is very impressive. But an inner voice tells me that it is not yet the real thing. The theory yields a lot, but it hardly brings us any closer to the secret of the Old One. In any case I am convinced that He doesn't play dice.
--Albert Einstein


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Reply to dhlucke
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yea i dont claim to know what i talk about, but how can you have metaphors in math? im seriously asking because its above my head, but the two just dont seem to go together


perhaps its like math could be considered art in some ways..?

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Reply to phial
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I was also just about to tell him metaphors wouldn't work too well for this. But, I was gonna try and help him out as much as possible.

Oh, and he does play dice, or so it seems, with nuclear decay an all...

--
"There's more to life than profits."
<font color=red>"Like what?"</font color=red>
"Like, you know, Slurpees and stuff."
<A HREF="http://images.southparkstudios.com/media/video/707/slurpees.mov" target="_new">South Park</A>

Reply to ksoth
- 0 +

Quote :


Quantum mechanics is very impressive. But an inner voice tells me that it is not yet the real thing. The theory yields a lot, but it hardly brings us any closer to the secret of the Old One. In any case I am convinced that He doesn't play dice.
--Albert Einstein




It's like using statistics (in a proper way). If you use it properly you can prove that certain factors influence certain events. You can even predict the progress of certain events on the basis of such statistics, however it does not necessarily give you insight in why that is, you will have to research the actual process of what is going on in order to explain the effect.

I've always interpreted Albert's quote in a similar way, in other words using all these probability functions in Quantum Mechanics can yield very good results in predicting all kinds of observed events but it does not bring the understanding of such events any closer. This may not be a completely fair analogy because understanding in many physical processes has increased quite a lot but as far as I know (and I'm not a professional in the field) it does hold with regard to fundamental research on elemental particles (quarks, photons, etc).

With regard to his referral to the Old One, I can agree with the statement that He does not play dice, but He is definitely a very process oriented being without giving a hoot about single particles (at whatever scale you wish to interpret that).



BigMac

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Reply to BigMac

ACME Anvil hits Willy Coyote on head after Anvil fails to obtain enough inertia to break over the apogee.

Case closed.

Humour is the greatest form of intelligence, and takes the highest IQ levels to obtain it.

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Reply to SoDNighthawk
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Quote :


Humour is the greatest form of intelligence, and takes the highest IQ levels to obtain it.



It all comes together for me now....

You're a bot.


BigMac

<A HREF="http://www.p3int.com/product_center_NWO_The_Story.asp" target="_new">New World Order</A>

Reply to BigMac
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I am a tutor and a TA. I am having trouble explaining QM to kids who are uninterested in it. They dont care to have a 25min explination of what it is and the generalities of it. I need something smaller and more tangible for them.

They aren't retarded or stupid in any respect. But for most 16 and 17yr olds you haven't even had a taste of Calc. let alone anything close to what is needed to describe QM properly.

To say that you dont learn from metaphors is WRONG! Your buddy you so are so quick to use...often used metaphors and analogies to describe in tangible terms what his work was. I know of quite a few of them. The twin paradox is something i use all the time. Also Einstein used 'thought experiments' on a regular basis to verify his logic. Those were nothing more then analogies and metaphors played out and analyzed.

To say the only valid way of learning is through reading....how do you learn to read? If you say the only valid way to learn to study...then how do you learn to study?
Life is full of learning tools. Imitation is the first and often the most powerful to a lot of children who lack the experiance and the language to describe. If i can put something in terms that they can realte to it is easier for them to have questions because they have a model to compare to.

I am trying to help children who are in highschool learn about something that is above them in mathmatics but is something they should know about. Not in depthly but just to have a taste of it.

I know it may not be important to you, but i take great pride in exciting kids about physics and the great puzzles of our time. Its true that they will most likely not solve them. But if they are excited about it, then who knows what will come of it.

You shouldn't only study something you can easily understand. Thats a redicuous stance. How would hard problems ever get solved?

I guess because something is tough, kids shouldn't try to learn it and they should def. not be curious about it. How dare kids have a yerning for information.

<P ID="edit"><FONT SIZE=-1><EM>Edited by pickxx on 08/05/04 10:18 AM.</EM></FONT></P>

Reply to pickxx
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I respect your position with regard to teaching children but please understand that Quantum Mechanics is very hard to translate to metaphores because results can be so contra intuitive. In my time QM was basically not covered in high school at all and I did not (really) miss it. I got my education on QM at the university after first being drilled extensively in a lot of mathematics as QM is very mathematical.

I think you will have to try to explain that before really getting into Quantum Mechanics, you should start with explaining particles are described by wave functions, and that particles usually behave like particles (show a pebble and let it drop to the floor) but sometimes particles behave like waves (assuming you have covered what waves are, which I think is the case for 16 and 17 year olds). You can do some simple experiments with light to show that light particles behave like waves, and sometimes like particles (you probably already did those).

Next you can try to discuss the tunneling effect by explaining that (on elemental particle scale) that it is possible that wavefunctions are superimposed such (you do the translation to normal 16/17 year old talk) that a particle will cross a boundary whereas this would be impossible if the particle was just a particle and nothing else (example of a brick and a pebble, where the pebble is "squeezed" through the brick).

Then I think you need to try and explain in simple terms (but not with a metaphore or an analogy) that observations to a particle/wavefunction, interact with it. If you know its position, you cannot measure its speed and vice versa.

Then you could discuss some of the dilemma's in Quantum Mechanics like Schrödingers Cat. This you can discuss without getting into the subject matter of QM itself but it is a good illustration of how weird QM is, and that might pique some interest by any future scientists that you might have in your class.

Hope this helps some.



BigMac

<A HREF="http://www.p3int.com/product_center_NWO_The_Story.asp" target="_new">New World Order</A>

Reply to BigMac
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What you might want to do is pick up a book called "The Elegant Universe" by Brian Greene. Although that book is mostly about string theory, it does have a chapter or two on quantum mechanics and does explain the weirdness of it using the H Bar "metaphor."

--
"There's more to life than profits."
<font color=red>"Like what?"</font color=red>
"Like, you know, Slurpees and stuff."
<A HREF="http://images.southparkstudios.com/media/video/707/slurpees.mov" target="_new">South Park</A>

Reply to ksoth
- 0 +

I like how you're on a first name basis with Einstein.

</font color=red><i><font color=red>GOD</font color=red> <font color=blue>BLESS </font color=blue><font color=red>AMERICA

Reply to dhlucke
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This is my personal opinion only, but trying to explain quantum mechanics to 16 year olds who are uninterested is just a waste of time. They don't know calc, statistics, let alone classical mechanics so there is really nothing you can do for them.

BTW, the twin paradox is for relativity, not quantum mechanics.

If you want to excite them, stay away from explaining quantum. Relativity is probably a really good one though.

If you REALLY want to, I might brush over the correlation between matter and energy, quantum tunneling, the history of the theory, and possibly the photoelectric effect. If they're still interested then I would back up and start teaching them the basics: calc, mechanics, e/m, thermo, statistics, etc....

I really don't understand why you are doing this. You're skipping too many steps. Quantum is not intuitive and if some nutjob started explaining it to me at 16 I probably would have never gotten a degree in physics.

</font color=red><i><font color=red>GOD</font color=red> <font color=blue>BLESS </font color=blue><font color=red>AMERICA

Reply to dhlucke
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I wonder when Flamethrower will bump into this thread. QM is his favorite topic anyways.

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Reply to eden
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yea i was thinking this also. hes freaking smart man, incredible

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Reply to phial
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He's my dog too.

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Reply to eden
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My client, a Mr Flamethrower205, wishes to advise you two against any further sexual advances on him. This is your last warning or we will be forced to file a civil lawsuit against the both of you, your families, everyone you know, everyone you have ever known, and your beady eyed flapping head government.

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Reply to dhlucke

Perhaps he'd like to settle out of court...*knowing wink*...

:eek: I'm the good time that was had by all :eek:

Reply to WingDing
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See that is just the thing....i am not trying to teach them QM. In fact i dont think i know it well enough to teach it. But if i am asked about it by someone i would rather have a short analogy to explain it generally, then having to spend 25min.

I am not the teacher, so i do not control lesson plans. I merely help with some labs, and tutor some kids afer school. (btw, not all the kids i tutor are behind, i help the advanced kids get some extra exerpiance with harder principals then the normal class)

I understand i am reaching into the dark for this. I was hoping someone ran into some clever explination of QM or some clever trick. If finding an explination was easy i wouldn't have to ask for it, i would already know it.

Its hard to justify spending 30min discussing QM when i have an hour a day with them and there are other things, most of which they will be tested on, that they have to learn.

Thanx though

Reply to pickxx
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I am not much of a book reader, i read maybe 1-2books a year maybe. But i have read this book several times. I read it first when i was 15 and almost every other since then. Its a great book and i am going to get Brian Greene's next book soon.
It does talk about it but no clever quips i can use.
Its a great book and written is such a way that i could read it when i was 15 and not feel as though i was reading something way above me.
Its something i have recomended to the kids i help, but i can't force them to read it.

Reply to pickxx
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first thing, i AM on a first name basis with Albert. We go way back, he is my homie.

I know the twin paradox is relitivity, i was just saying that as an example of Mr Einstien explaining something that isn't all that intuitive with an analogy to help people learn about his work.

I am not trying to TEACH them QM. But i have been asked about it and the text book that they use actually mentions it a couple times but without explination. Some of the kids who are quite smart are just curious what this theory is because they run into it every now and then. I would prefer to have some kind of an answer as opposed to just saying to them they wouldn't understand it and then move on.

Its true, most kids would be scared off with the complex nature of QM. But when i was 15/16 and in my Honors Physics class i got into it a little. But what really got me passionate about it was i learned about QM, String theory, and other things that are mathmatically way above me.

I dont expect anyone to be like me, but i also dont think i should deny a kid atleast the chance to have his question answered because i am not smart enough to come up with a clever analogy.

Reply to pickxx

Ye old Double Edged Sword

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Reply to SoDNighthawk
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To me, it seemed like QM is another way to try to show how unpredictability exists, and a linear universe and physics do not exist, therefore the existence of randomness is there and clearly destroys the doctrines of determinism and fatalism. At least, that's the most basic I can think of, myself, since this is what I feel helped overcome such thoughts in the past.

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Reply to eden
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I file for appeal!

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Reply to eden

I can't think of anything simpler than schrodinger's[sp?] cat, but I think someone mentioned that above anyways... Plus you've gotta be cautious about telling them a story about someone with a cat in a box which is both alive and dead. They'd probably be imagining a cat zombie.. :lol: .. and might even try to re-create the experiment :eek: ...

If you do get asked, I suggest telling them to solve the logic puzzle posted by SilverPig around here somewhere, and then running away while their heads implode.

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Reply to ChipDeath

Sounds like my kinda puzzle...

:eek: I'm the good time that was had by all :eek:

Reply to WingDing
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