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-   -   OT: String Theory (http://forum.shrapnelgames.com/showthread.php?t=21079)

Atrocities September 29th, 2004 08:56 AM

OT: String Theory
 
Does any one know anything about this? Also known as the M theory.

Basically it says that all things exsist in stings of demensional matter with Gravity being multi-demensional.

Very interesting. I cought a show about it on NOVA.

Will September 29th, 2004 12:14 PM

Re: OT: String Theory
 
All I know is that nobody -- even the people who created the theories -- really understands them. And the mathematics behind it are way too advanced for me to begin to understand any Version of string theory without the help of a Physics grad student. Definitely heavy stuff.

Gandalf Parker September 29th, 2004 03:01 PM

Re: OT: String Theory
 
and Membranes (called branes)
and there are 11 dimensions. Well actually there are 10 dimensions plus 1 (thats how they put it).
And "the Big Bang Theory" became the "2 branes touching released untold amounts of energy/matter into our brane".

I find the Last thing interesting because so much scientific "debunking" of so many subjects relied on the rule that "matter/energy cannot be created or destroyed". That hasnt changed but it gave us a whole new place to examine for possible answers

Quantum Theory now shows up in everything from computers to FTL drives to paranormal to supernatural to religious investigations. If you want your head to spin here are some links.
http://www.newscientist.com/hottopics/quantum/
http://www.sciencedaily.com/search/?...sort=relevance

I always knew that the future was coming. But lately it seems to be coming faster and faster every day.

Will September 29th, 2004 04:31 PM

Re: OT: String Theory
 
I believe the 11-dimensional Version of string theory is the one that has garnered the most journal articles and general media attention. But I've heard Versions having anywhere from 7 to 23 dimensions (or, 6space+1time to 21space+2time, I think). All of it is pretty much theoretical, since any hypothesis can't be tested in a normal laboratory environment, only in particle accelerators (very small scale) and through astronomy (very large scale). The current everyday accepted model of physics of course has four dimensions (3+1), and the new theories incorporate those, along with "new" dimensions, to explain various properties. But, like I said... the math is way beyond me.

EvilGenius4ABetterTomorro September 29th, 2004 05:44 PM

Re: OT: String Theory
 
I can't understand the dimensions thingy. Can you go into those dimensions? What would it be like? And most importantly does it hurt?

God sprayed Silly String, now look at this mess!

narf poit chez BOOM September 29th, 2004 06:01 PM

Re: OT: String Theory
 
'And the ant looked upon the mountain and declared that the world ended at the top.' - Me, just now.

gregebowman September 29th, 2004 06:16 PM

Re: OT: String Theory
 
the only string theory I understand is the one from Quantum Leap. That one I can understand. I like to think I can understand most things about science, but I don't even pretend to try to understand the string theory. I know I've heard of it from somewhere, but don't remember where. I was never good at the higher maths anyway.

Aiken September 29th, 2004 07:27 PM

Re: OT: String Theory
 
Worst thing about the M-theory is that it requires different mathematics to begin to shine and explain everything in the Universe. Should I explain that there is no such math around?

Atrocities September 29th, 2004 07:36 PM

Re: OT: String Theory
 
It all sounds like a string of crap to me. Now watch it be accurate.

Roanon September 29th, 2004 08:36 PM

Re: OT: String Theory
 
String theory should bridge the gap between conventional physics (Einstein) and quantum physics: the first dealing preferrably with large masses, the other one mainly concentrating on atomic level and smaller. But as far as I understand it - which is not far - the theory is still lacking to explain something previously unexplained or predict some new and proveable effects.

Renegade 13 September 29th, 2004 09:56 PM

Re: OT: String Theory
 
A couple of quotes that may help to shed some light on string theory. All are taken from "Origin & Fate of the Universe" a special cosmology issue of Astronomy magazine:

Quote:

String theory suggests that particles in the universe are composed of loops of vibrating strings. Like a violin or piano string, one of these fundamental strings has many different harmonics. In string theory, harmonics correspond to different elementary particles. If string theory proves correct, electrons, photons, and neutrinos are different due to changes in the vibrations of the strings.

One of the areas that string theory helps physicists out in is the apparent clash between General relativity and quantum mechanics:

Quote:

General relativity described large objects such as the solar system, galaxies, and the universe. Quantum mechanics, as elaborated in the standard model, described small objects such as atoms, molecules, and subatomic particles. Physicists, however, are not satisfied having two different theories that work in two different realms. One reason is simply that big objects ultimately are made out of little objects. The same forces operate on both atoms and stars, for example, even though gravity is more obvious for stars while electricity and magnetism dominate in atoms.

Quote:

If string theory proves correct, all elementary particles...owe their existence to subtle differences in the vibrations of strings. The theory offers a way to unite disparate particles because they are, in essence, differnet manifestations of the same basic string.

Now I've probably just gone and confused you more, but I hope the quotes help you understand it a little better. http://forum.shrapnelgames.com/images/smilies/happy.gif

Gandalf Parker September 29th, 2004 10:24 PM

Re: OT: String Theory
 
Quote:

EvilGenius4ABetterTomorro said:
I can't understand the dimensions thingy. Can you go into those dimensions? What would it be like? And most importantly does it hurt?

From what little I can follow (still waiting for Quantum Theory for Dummies to be written) it seems that membranes are closer to what we would call dimensions.

What they call dimensions seems to be like this....
a fungus lives in one dimension, a bacteria in 2d like on a flat surface, an animal in 3 adding up/down, we live in 4 by adding time. Not a great comparison but something along those lines. Whats twists the head and makes you not sleep so well is.. a 2d might cross the paths of a 1d but the 1d will never be able to understand what it was and why it did what it did. It would seem to appear and disappear from its universe. A 3d animal might interact with a 2d but its way beyond any understanding. A human might cross paths with a wild wolf which will never understand the whats and whys of it. Even more so if another human crossed its path later since the explanation would involve time. Not so much an intelligence thing, just that without that dimension all of the explanations fall flat.

Thats 4, out of 10. What if all unexplainable things were 5, 6, 7... awwh heck figure the most unexplainable is sitting at 10. NAHH forget all that. Thats for someone else to figure out when we get smarter. http://forum.shrapnelgames.com/images/smilies/happy.gif


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