Recent content by random3f

Hi all, could you suggest me references that can help me in the following calculation? I would like to see how to describe microscopically the interaction of light (or in general of an external field) with a disordered system such as glass ( I can find literature only for materials modeled...

Are there experiments which you can claim that they are the evidence of the time-energy uncertainty relation? Or can you write which experiments can be directly related to this uncertainty relation? i.e A beta decay or a strange effect in (quantum) optics... everything you have in mind...

During a lecture about QFT (http://video.google.it/videoplay?docid=-8230150359736309141&ei=xFWDSNSiDITgjAKz46i3Bg&hl=it" ) Alain Connes said that Green (in1850) used a mass renormalization to calculate the acceleration of a ball in a liquid, because you can't directly calculate it just using...

Analyzing the problem in a classical way, we can find a geodesic equation with an affine parameter (like in Susskind, Lindesay) of an object radially free falling in a Schwarzschild BlackHole. You can see that when object is at r= 2MG (so at Schwarzschild radius), the Schwarzschild time is...

We know that something with a big mass will collapse and will become a black hole. We know also that an "easy" black hole is the Schwarzschild solution of the Einstein's equations. An object free falling into a black holes will pass the event orizont without problems but for an external...

Hi, i'm searching for a big database where i can find informations about astrophysics objects (stars, galaxies, etc.); the informations i need are mass, position, etc. (and if i can, references to the papers on that object). Does a so big database exist? Thanks