quantum physics

robbiej · Post by **robbiej** » Thu Nov 01, 2007 1:06 pm

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

chu · Post by **chu** » Thu Nov 01, 2007 1:44 pm

RickyRicardo wrote:<= reaches for his gun

easy there Einstein, don't do anything too unpredicatable.

contakt · Post by **contakt** » Thu Nov 01, 2007 4:05 pm

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.

8 · Post by 8 » Thu Nov 01, 2007 4:18 pm

haha big up and thanks for the educations....

havent read all the replies yet but i will do

chu · Post by **chu** » Thu Nov 01, 2007 4:26 pm

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"

contakt · Post by **contakt** » Thu Nov 01, 2007 4:32 pm

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.

chu · Post by **chu** » Thu Nov 01, 2007 4:40 pm

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

mohan · Post by **mohan** » Fri Nov 02, 2007 12:36 am

Man, this forum is truly awesome! Ham touching to quantum physics and everything in between.

nomorecomastep · Post by **nomorecomastep** » Fri Nov 02, 2007 1:07 am

Is the observer of feline durability durable?

nomorecomastep · Post by **nomorecomastep** » Fri Nov 02, 2007 1:09 am

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.

flippo · Post by **flippo** » Fri Nov 02, 2007 1:13 am

Double slit experiment is pretty cool!

parson · Post by **parson** » Fri Nov 02, 2007 6:35 am

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.

misk · Post by **misk** » Fri Nov 02, 2007 6:38 am

Parson wrote:i'm super high

parson · Post by **parson** » Fri Nov 02, 2007 6:40 am

i really think the idea of a probability cloud is ridiculosity

parson · Post by **parson** » Fri Nov 02, 2007 6:41 am

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

sonar · Post by **sonar** » Fri Nov 02, 2007 1:44 pm

http://www.tenthdimension.com/flash2.php

10 dimensions, explained, in simple terms.

parson · Post by **parson** » Fri Nov 02, 2007 5:52 pm

thats like some quantum/super string fusion theory

guerillaeye · Post by **guerillaeye** » Fri Nov 02, 2007 6:00 pm

What the "Bleep" Do We know

directors cut.

chu · Post by **chu** » Fri Nov 02, 2007 7:36 pm

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.

Post by **dubway** » Fri Nov 02, 2007 8:01 pm

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

quantum physics

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