Recent content by serali

http://en.wikipedia.org/wiki/Jacobi_field also see http://iopscience.iop.org/0305-4470/14/9/029/?ejredirect=.iopscience What's the difference between the jacobi equation and the geodesic deviation equation?

I heard from a professor at my deparmant that there are some "simple" experiments in searching for extra dimensions. after a research, the only thing that I've found is this: http://www.stanford.edu/group/kgb/Research/gravity.html after checking the experimental procedure, now, i am...

Classical mechanics of particles and rigid bodies / Kiran Chandra Gupta I think this book is very good for UG level. Especially if you don't want to skip any details. Marion's book is mostly based on this. I am looking for an introductory Geometry & topology book. I couldn't see any in...

which one is more important? GRE, GPA or references?

sorry.. I should have been more clear. I am asking about undergrad and gradute level, and the books I ask are on subjects like: geometry and topology, quantum mechanics, particle physics, EMT, classical mechanics...I am not into low dimensional field theories yet...

I just wanted to learn your favourites... and I don't care about the amount of math. but a good book shouldn't say "we leave the proof as an example..." or "...but the proof of this is beyond the scope of this book...".

hi everybody, I really want to learn your ideas about textbookson physics. which one is your favorite? of course I am not talking about popular books. I want you to say for example: classical mechanics-landau quantum mechanics-liboff but only one book on each subject. thanx

ok now a related question(i think its unnecessary to start a new thread): what is the difference between emission and absorption spectra. i read smt in some astrophysics books but they were very confusing for me.

yes but think about rotational motion: if you check the edge of the object, it will seem to have only a tangentional motion. there will be a red/blue shift depending on which side you look. generally what i want to know is whether it is clear for us that the wavelength of EM we observe is...

when observing heavenly objects, there is an important role of doppler effect. but is there a way to distinguish whether the red/blue shift is because of translational, rotational motion or perhaps thermal motion of the atoms?

i am sorry, i missed them but i think this subject deserves an independent thread. i am an undergrad. i am interested in cosmology, taking some courses, but of course my knowledge is not enough to make a comment on the statement. but from my point of view the most important part of the text...

i think to source of the problem is my english. i am not so fluent... i konw that the spin of the electrons shouldn't be understood as a solid spinning. think of a metal disk which is has an amount of charge on. by spin i meant the rotation of this disk on a fixed axis. now if you read carefully...

http://cosmologystatement.org/ i searched the forum in detail, and couldn't find any discussion about the subject. I am sure that the users of the forum don't have closed minds. please read the text.

gonzolo what do you mean that the spin of the electrons does not work that way? by spinning i mean that the body has a constant or or accelerated angular velocity. but i understand your point. I would be pleased to find the works of lorentz, i am sure he made amazing studies to discover the...

I have a project but problems in formulating... the project is about the conductivity of a charged metallic body which is spinnig on a fixed axis. I am trying to find out whether there is a relationship between the characteristics of the electromagnetic waves emitted by the body and the...