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Posted: Thu Nov 01, 2007 1:06 pm
by robbiej
i should also just say that there are competing views on just these simple concepts. Wave function collapse (or the "observation/measurement") is believed by one school of thought (Copenhagen) to be that the probabitlies of (back to the cat metaphor) the cat being dead or alive collapse into a single reality through the act of opening the box (measurement).
The competing "many worlds" view believes that this Wave function collapse doesnt happen at all, it just appears so, its just that the other probablity, becomes unmeasurable, not that it disapears ( i think this is called quantum decoherence). Basically (and this is where it gets fun for me) when you open the box and find the cat alive, another universe extends from that point in which you opend the box and found the cat was dead
Posted: Thu Nov 01, 2007 1:44 pm
by chu
RickyRicardo wrote:<= reaches for his gun
easy there Einstein, don't do anything too unpredicatable.
Posted: Thu Nov 01, 2007 4:05 pm
by contakt
How many quantum physicists does it take to change a lightbulb?
There is no answer. There is too much uncertainty. There may not even be a damn bulb in the socket to change. Or if there is, it may go out just by looking at it. Or it may spontaneously change into a carrot. It's all too frightening. Best not ever leave your bed.
Posted: Thu Nov 01, 2007 4:18 pm
by 8
haha big up and thanks for the educations....
havent read all the replies yet but i will do
Posted: Thu Nov 01, 2007 4:26 pm
by chu
Contakt wrote:How many quantum physicists does it take to change a lightbulb?
There is no answer. There is too much uncertainty. There may not even be a damn bulb in the socket to change. Or if there is, it may go out just by looking at it. Or it may spontaneously change into a carrot. It's all too frightening. Best not ever leave your bed.
Two Hydrogen atoms walk into a bar, one turns to the other and says:
"damn I think I just lost my electron",
the other replies "are you sure?"
"yeah, I'm positive"
Posted: Thu Nov 01, 2007 4:32 pm
by contakt
Chu wrote:Two Hydrogen atoms walk into a bar, one turns to the other and says:
"damn I think I just lost my electron",
the other replies "are you sure?"
"yeah, I'm positive"
Classic. Science jokes are the best. They make my inner spod glow.
Posted: Thu Nov 01, 2007 4:40 pm
by chu
Contakt wrote:Chu wrote:Two Hydrogen atoms walk into a bar, one turns to the other and says:
"damn I think I just lost my electron",
the other replies "are you sure?"
"yeah, I'm positive"
Classic. Science jokes are the best. They make my inner spod glow.
Yes standard, big up with the Rorschach pic BTW, mans deeps
Posted: Fri Nov 02, 2007 12:36 am
by mohan
Man, this forum is truly awesome! Ham touching to quantum physics and everything in between.
Posted: Fri Nov 02, 2007 1:07 am
by nomorecomastep
Is the observer of feline durability durable?
Posted: Fri Nov 02, 2007 1:09 am
by nomorecomastep
Chu wrote:RickyRicardo wrote:<= reaches for his gun
easy there Einstein, don't do anything too unpredicatable.
please keep your responses in the form of unintelligible jargon.
or don't.
Posted: Fri Nov 02, 2007 1:13 am
by flippo
Double slit experiment is pretty cool!
Posted: Fri Nov 02, 2007 6:35 am
by parson
i haven't read the whole thread yet and i'm super high but here's what i think about quantum physics:
basically these dudes are coming up with all these crazy conclusions about imposible states and parallel universes because they are examining crazy shit go down at the sub-atomic level.
i'm thinking basically if you accept string theory and brane theory it accounts for the randomness, because both state that there are spacial dimensions beyond what we perceive. basically the electrons are moving in and out of spacial dimensions we don't know exist, and they appear to be doing random shit. einstein was never into the idea of randomness and neither am i.
Posted: Fri Nov 02, 2007 6:38 am
by misk
Parson wrote:i'm super high
Posted: Fri Nov 02, 2007 6:40 am
by parson
i really think the idea of a probability cloud is ridiculosity
Posted: Fri Nov 02, 2007 6:41 am
by parson
its like if you lived in a 2-d world, and there was a threaded needle going in and out of your flat space in 3 dimensions, you would experience seeming random unconnected points, but in reality, you just can't perceive beyond 2-d
both string theory and brane theory are saying there's more dimensions.
it doesn't just account for gravity's weakness, but in my personal opinion, explains away the need for this quantum probability bs
Posted: Fri Nov 02, 2007 1:44 pm
by sonar
http://www.tenthdimension.com/flash2.php
10 dimensions, explained, in simple terms.
Posted: Fri Nov 02, 2007 5:52 pm
by parson
thats like some quantum/super string fusion theory
Posted: Fri Nov 02, 2007 6:00 pm
by guerillaeye
What the "Bleep" Do We know
directors cut.
Posted: Fri Nov 02, 2007 7:36 pm
by chu
guerillaeye wrote:What the "Bleep" Do We know
directors cut.
I'd agree, not much, but I think Science is one of the things we can be surer about in life, at least it's up there with the fact that the plural of Lego is Lego.
Posted: Fri Nov 02, 2007 8:01 pm
by dubway
i learn from Berkeley Physics Course -
http://en.wikipedia.org/wiki/Berkeley_Physics_Course
right now im studing Waves, but next semester i will be studing Quantum Physics
