quantum physics | xltronic messageboard
 
You are not logged in!

F.A.Q
Log in

Register
  
 
  
 
Now online (1)
big
...and 457 guests

Last 5 registered
Oplandisks
nothingstar
N_loop
yipe
foxtrotromeo

Browse members...
  
 
Members 8025
Messages 2614212
Today 16
Topics 127548
  
 
Messageboard index
quantum physics
 

offline marlowe from Antarctica on 2003-04-30 07:06 [#00677963]
Points: 24592 Status: Regular



isn't it just fascinating? I'm brushing up on the subject
again after neglecting it for some two years. Eh!
Probability waves! Electrons becoming particles when
observed! Crazy!


 

offline Ceri JC from Jefferson City (United States) on 2003-04-30 07:08 [#00677965]
Points: 23533 Status: Moderator | Show recordbag



Yes, never mind philosophy, you want to fry your brain, read
up on that stuff :)


 

offline Bob Mcbob on 2003-04-30 07:09 [#00677967]
Points: 9939 Status: Regular



quantum physics are like hats and flying geese - they go
above my head


 

offline marlowe from Antarctica on 2003-04-30 07:10 [#00677968]
Points: 24592 Status: Regular | Followup to Ceri JC: #00677965



quantum physics IS philosophy! :D


 

offline Morgoth from Stella-town (Belgium) on 2003-04-30 07:12 [#00677973]
Points: 1264 Status: Regular



Quantum physics is weird. Particles being waves, and the
other way around.
Virtual particles, particles that only exist for
microseconds and all that. It's fascinating, but it's also
difficult to understand.


 

offline dave_g from United Kingdom on 2003-04-30 07:14 [#00677980]
Points: 3372 Status: Lurker



it also explains a hell of a lot of stuff. its amazing how
many 'fundamental' particles there are. it can all be easily
simplified so that all the particles in the known universe
can be fermions, which exchange bosons of 4 types, depending
upon the force acting, ie either strong nuclear force, weak
nuclear force, coulomb electrostatic force or
gravity....interesting stuff indeed.


 

offline jupitah from Minneapolis (United States) on 2003-04-30 07:15 [#00677981]
Points: 3489 Status: Lurker



and we all have wave funtions corresponding to our
partically percieved bodies :)


 

offline Bob Mcbob on 2003-04-30 07:16 [#00677983]
Points: 9939 Status: Regular



eh? all the panties in the known universe can be
famous,which exchange bussoms of 4 types?


 

offline marlowe from Antarctica on 2003-04-30 07:16 [#00677984]
Points: 24592 Status: Regular | Followup to Morgoth: #00677973



and particles that go so fast, that their time slows down,
so altho they only live a microsecond, they travel much
further than expected ! :D

and the possibility of tachyons, moving faster than the
speed of light, and backwards in time! They use more energy
DEcelerating than ACcelerating! :D


 

offline artemis from Ghent (Belgium) on 2003-04-30 07:20 [#00677993]
Points: 667 Status: Lurker



Complete agree! I love it! I have studied pure mathematics
and now i'm preparing my PHD-thesis on applied matematics
with applications for quatum physics


 

offline catharsis from Toronto (Canada) on 2003-04-30 07:24 [#00677998]
Points: 836 Status: Regular



I'm an amateur in quantum physics, but "A Brief History of
Time" by Stephen Hawkings completely blew my mind.


 

offline marlowe from Antarctica on 2003-04-30 07:27 [#00678006]
Points: 24592 Status: Regular | Followup to artemis: #00677993



damn i wish I was a good mathematician! :|

catharsis --- read the books of John Gribbin - they are very
good - especially for the "amateur quantum physicist" :)


 

offline corrupted-girl on 2003-04-30 07:27 [#00678007]
Points: 8469 Status: Regular



love it


 

offline corrupted-girl on 2003-04-30 07:28 [#00678009]
Points: 8469 Status: Regular



i use to have an obsesed friend who taught me all about it,
well some of it.


 

offline artemis from Ghent (Belgium) on 2003-04-30 07:29 [#00678010]
Points: 667 Status: Lurker



You must be a good mathematician to explore quatum physics


 

offline jupitah from Minneapolis (United States) on 2003-04-30 07:31 [#00678020]
Points: 3489 Status: Lurker



i tried exploring quantum physics the non-mathematical
conceptual way... didn't get too deep.


 

offline Jarworski from The Grove (United Kingdom) on 2003-04-30 07:32 [#00678022]
Points: 10836 Status: Lurker



I liked Quantum Leap


 

offline marlowe from Antarctica on 2003-04-30 07:34 [#00678027]
Points: 24592 Status: Regular | Followup to Jarworski: #00678022



haha that was my favourite show when I was a teenager! :D


 

offline dave_g from United Kingdom on 2003-04-30 07:42 [#00678038]
Points: 3372 Status: Lurker



"hyperspace" by Michio Kaku is a good book describing how
there are more than 4 dimensions in easy(ish) to understand
english fo rthe layperson.


 

offline KEYFUMBLER from DUBLIN (Ireland) on 2003-04-30 07:44 [#00678044]
Points: 5696 Status: Lurker



quantum mechanically... we only exist because we are here to
percieve our existence in the first place. .... is so simple
its fucking amazing

*disappears with a flash of light


 

offline jupitah from Minneapolis (United States) on 2003-04-30 07:46 [#00678049]
Points: 3489 Status: Lurker



*


 

offline marlowe from Antarctica on 2003-04-30 07:49 [#00678055]
Points: 24592 Status: Regular | Followup to KEYFUMBLER: #00678044



yeah, isn't that just ODD?

"who is watching the watcher?"


 

offline Bob Mcbob on 2003-04-30 07:51 [#00678059]
Points: 9939 Status: Regular | Followup to marlowe: #00678055



i dunno. coastguard?


 

offline Dozier from United States on 2003-04-30 07:53 [#00678065]
Points: 2080 Status: Lurker | Followup to marlowe: #00677984



Aye, the John Gribbin books are very good.

And it it's interesting how everytime they think they've
found the elementary particles they eventually discover that
they're made up of even smaller ones themselves. I wonder if
that trend will ever end, and if it did, how could we be
confident that we'd reached the end?

And as far as the Copenhagen Interpretation (the one that
says everything is a wave function that is collapsed by a
conscious observer), that has very deep philosophical
implications, i.e. it may lead us to a definition of what a
conscious observer is. However, that's only one model or
possibility for how things are really working..

I need to read up on string theory, I've fallen behind the
times a little :P



 

offline korben dallas from nz on 2003-04-30 07:55 [#00678068]
Points: 4605 Status: Regular



Zeno pulls some narly tricks on atomism ;D


 

offline marlowe from Antarctica on 2003-04-30 08:18 [#00678148]
Points: 24592 Status: Regular



ZENTASTIC ! !


 

offline fleetmouse from Horny for Truth on 2003-04-30 08:33 [#00678171]
Points: 18042 Status: Lurker | Followup to korben dallas: #00678068



Doesn't he have to half-pull them first?


 

offline diablo on 2003-04-30 08:49 [#00678192]
Points: 3242 Status: Lurker



I saw Steven Hawking trundle past the shop I worked at when
I lived in Cambridge. With 2 burly nurses.

I was gonna shout "Alright Steve! What's it all about then
eh?" but I didn't.


 

offline artemis from Ghent (Belgium) on 2003-04-30 08:51 [#00678195]
Points: 667 Status: Lurker



Hi Marlow, try also to check the theory of relativity by
Einstein, it is weird too! The mathematics is very simple
but it blow up your mind! After that check also the theory
which is a mix relativity and quantum phisics. Strange, this
two theories contradict each other but it works.


 

offline fleetmouse from Horny for Truth on 2003-04-30 08:51 [#00678196]
Points: 18042 Status: Lurker | Followup to diablo: #00678192



What was it like living with two burly nurses?


 

offline marlowe from Antarctica on 2003-05-01 06:03 [#00679482]
Points: 24592 Status: Regular



I'm amused at the fact that electrons shoot back energy from
the future to interact and interfere with their past selves.
Ain't that just WEIRD??


 

offline jupitah from Minneapolis (United States) on 2003-05-01 11:06 [#00679756]
Points: 3489 Status: Lurker | Followup to marlowe: #00679482



...and we are electrons, right?

what is this i remember hearing about electrons or maybe
particles in general being able to "borrow" energy from
"nowhere"... and there were specific probabilities invovled
(of course); the greater the amount of energy the less
probable it is that an electron would "randomly" achieve
this sourceless energy.


 

offline plaidzebra from so long, xlt on 2003-05-01 11:25 [#00679778]
Points: 5678 Status: Lurker



when i say that science and spirituality will fuse in the
future, i suspect that some think (those that do not skip my
posts) that i mean we will take communion from test tubes,
or am promoting some sort of science fiction metaphysic like
scientology. but i think that science, in conjunction with
spiritual inquiry, will enable the discovery of how and why
we exist, and aid in the application of this knowledge
toward the tranformation of our collective reality. this
will involve the perhaps uncomfortable abandonment of
cherished assumptions, both scientific and spiritual. we
can already see quite clearly our material assumptions about
reality being dissolved. truly, when we are ready, a new
world awaits us.

The opposite of a correct statement is a false statement.
But the opposite of a profound truth may well be another
profound truth. -Niels Bohr, physicist (1885-1962)


 

offline Dannn_ from United Kingdom on 2003-05-01 11:48 [#00679803]
Points: 7877 Status: Lurker



Yeah quantum physics is the shit! And Quantum is such a cool
word. Wave function, photon, muon... physics has much better
jargon than chemistry (boron just sounds boring, and it is)
and even biology (although epithelial cells and purkinje
fibres sound cool, they don't make you sound as clever).


 

offline plaidzebra from so long, xlt on 2003-05-01 20:47 [#00680401]
Points: 5678 Status: Lurker



*hangs head in shame*

but dannn, we just wanted you to like us, dammit!


 

offline pachi from yo momma (United States) on 2003-05-01 21:48 [#00680429]
Points: 8984 Status: Lurker



my physics teacher is just now beginning the quantum unit.


 

offline listentoparka from Fisherman's Cove (United States) on 2003-05-01 21:50 [#00680434]
Points: 266 Status: Lurker | Followup to pachi: #00680429



muhaha you said quantum unit muhaha


 

offline pachi from yo momma (United States) on 2003-05-01 22:08 [#00680446]
Points: 8984 Status: Lurker | Followup to listentoparka: #00680434



damn right


 

offline xlr from Boston (United States) on 2003-05-01 23:32 [#00680482]
Points: 4904 Status: Regular



My roommate is a physics major, and he is taking quantum
physics this semester. he talks about it a lot, and I realy
don't get it or care. it's way over my head. I'm a
communications major, for fuck's sake. He makes me feel
really dumb :/


 

offline mappatazee from ¨y¨z¨| (Burkina Faso) on 2003-05-02 00:14 [#00680505]
Points: 14294 Status: Lurker



I'm going to be a physics major. Soon as I get out of this
hell-hole they call "Pleasant Hill High School". Pwah.


 

offline pachi from yo momma (United States) on 2003-05-02 00:16 [#00680506]
Points: 8984 Status: Lurker | Followup to xlr: #00680482



no worries. your talents in the field of communication far
exceed his.

;)


 

offline mappatazee from ¨y¨z¨| (Burkina Faso) on 2003-05-02 00:18 [#00680509]
Points: 14294 Status: Lurker



So clever! Arrg!


 

offline pachi from yo momma (United States) on 2003-05-02 00:21 [#00680511]
Points: 8984 Status: Lurker | Followup to mappatazee: #00680509



i am also eager to get out of high school. only about 20
days left for me.

=)


 

offline mappatazee from ¨y¨z¨| (Burkina Faso) on 2003-05-02 00:23 [#00680514]
Points: 14294 Status: Lurker



yeah, something like 22 here.


 

offline Cheffe1979 from fuck (Austria) on 2003-05-02 01:01 [#00680526]
Points: 4630 Status: Lurker | Followup to marlowe: #00679482



marlowe, the effect you mentioned (self-interactions of
electrons) is a problem of our mathematical description and
no feature of nature, all amplitudes including
self-interaction are devergent. it's solved with the
renormalization precedure (for quantum electro dynamics in
this case).

The deeper reason for such problems is that there is a
symmetry hidden in nature we haven't found yet and hence
can't deal with properly. If for example supersymmetry is
introduced to some qft's there is no need for
renormalization (to get rid of the divergent self-energy
contributions), everything is finite.


 

offline The_Funkmaster from St. John's (Canada) on 2003-05-02 01:24 [#00680541]
Points: 16280 Status: Lurker



Well, I was planning on going to a movie tomorrow night, but
I think now I will stay home all weekend and read about the
wonderful world of quantum physics... just sounds so darn
interesting!!


 

offline nanotech from Sukavasti Amitaba Pureland (United States) on 2003-05-02 02:34 [#00680590]
Points: 3727 Status: Regular



hey man, you got any sugested reading on the subject?


 

offline marlowe from Antarctica on 2003-05-02 05:04 [#00680780]
Points: 24592 Status: Regular | Followup to Cheffe1979: #00680526



yeah, but isn't renormalization an unsatisfactory
explaination, a trick, that's been put forth to try and get
rid of the infinities? The good thing about quantum physics
is there's no "true reality" models that describe everything
- you can get wildly different theories that produce the
same results; maybe this implies future refinement and
theory-fusion?

nanotech - some recommended reading:

John Gribbin, Schrödinger's Kittens
Richard Feynman, QED (Quantum Electrodynamics)
Hans Von Baeyer, Taming The Atom
J. S. Bell, Speakable and Unspeakable in Quantum Mechanics
David Deutsch, The Fabric of Reality
Martin Krieger, Doing Physics
Roger Penrose, The Emperor's New Mind
Andrew Pickering, Constructing Quarks


 

offline neetta from Finland on 2003-05-02 05:24 [#00680802]
Points: 5924 Status: Regular



the schödinger cat stuff really freaked me


 

offline marlowe from Antarctica on 2003-05-02 05:36 [#00680832]
Points: 24592 Status: Regular | Followup to neetta: #00680802



a bit like your avatar then, neet :D


 


Messageboard index