hlreed
03-07-03, 04:13 PM
I would like to know the property of strings used to model everything. I know they must have length or circumferance to have frequency. There are two properties. What are the rest?
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View Full Version : Stoopid string question hlreed 03-07-03, 04:13 PM I would like to know the property of strings used to model everything. I know they must have length or circumferance to have frequency. There are two properties. What are the rest? Fluidity 03-07-03, 04:50 PM This string theory is about to be put in the toilet because it doesn't do well with gravity in the world of the small. One of the other properties would have to be elasticity, or a tensor argument. Another would have to be limits, all kinds of limits, which is where it falls apart, i believe.... lethe 03-07-03, 04:52 PM well, hlreed, length and circumference are really only one property. think about that, it should be obvious, right? the other property that is input in string theory is the tension of the string, which is related to some experimentally measured number called the regge slope. most of the properties of the particle are determined by the quantum state of the string. perhaps you re familiar with quantum numbers n, l, ml, s, etc. from chemistry? well there are some quantum numbers for the quantum states of the string, and these determine in principle, along with the tension, the particles mass, charge, flavour, color and spin. and those numbers are about all there is to know about a particle. i might be wrong about this, so don t quote me on it, but i think the string length doesn t effect the exhibited properties. in fact, i don t think that is an adjustable parameter in the theory. although you do have the option to consider closed strings (loops), or open strings, and that does have massive impact on the spectrum of particles and interactions. blobrana 03-08-03, 11:05 AM string theory has given way to M-theory. The `string` is really a membrane...same properties apply though. http://mysite.freeserve.com/blobrana/database/strings/string1.html hlreed 03-08-03, 11:17 AM Thanks all. You provided what I wanted to know. The reason I asked, I was thinking about rotating digits, but membranes are better. |