Recent content by leptonsoliton

This topic keeps coming on this and other forums. I suppose it will continue to. The Pauli Exclusion Principle is a consequence of our current understanding of the rules of QM. It is not considered a force. There is no mediating exchange particle. This behavior of fermions is not a classical...

https://www.physicsforums.com/threads/quasar-redshift.167339/

Freezing will help, if you also drop the temperature below 0. Maybe that is what you mean by supercritical phase. Also, the dielectric constant is a function of the frequency of the EM radiation in question, and drops with increasing frequency. Here is a quote off of the web: "The dielectric...

The reaction studied by Ando and Kubodera (linked in one of my earlier posts above) was not n + n --> 2n, but rather, n + n --> d + e+ nu_e. So, your reasoning for dismissing the possibility of n-n fusion (instability of the di-neutron) does not seem to me to be valid.

Another note on this subject - let's put fusion aside for the moment, and just think about n-n scattering. The scattering length, a fundamental parameter in defining the scattering cross section, has not been yet measured directly for free neutron scattering. Indirect measurement gives...

The theoretical possibility of n-n fusion is considered in this paper: http://arxiv.org/PS_cache/nucl-th/pdf/0507/0507048v2.pdf but the author states that it would be enormously difficult to observe. BTW, this paper was published in Physics Letters B, Volume 633, Issues 2-3, 9 February...

Deconvolution. With applications in spectroscopy, PA Jansson - New York: Academic Press, 1984, edited by Jansson, Peter A., 1984 ... and thousands of other references. Use Google.

I suppose I should clarify for the one or two of you who haven't figured it out by now -- RH means Riemann Hypothesis, which is one of the hottest unsolved problems in math.

There are two problems with this approach before you even get started: 1) The Hilbert Polya CONJECTURE would have to be proved first, and 2) it would then have to be proved that the HP conjecture implied RH.

>... lost cause in physics is a topic that shouldn't be given as a >thesis problem. >So, if you're a physics grad student and some professor wants you >to work on hidden variable theories, ..., you'd better read this: Maybe grad students shouldn't be assigned to work on hidden variable...

From http://math.ucr.edu/home/baez/physics/General/open_questions.html#condensed How can turbulence be understood and its effects calculated? One of the oldest problems of them all. A vast amount is known about turbulence, and we can simulate it on a computer, but much about it remains...

Given two equal objects moving a constant speed (no external net force), one in a vacuum, and one not, then the object in the vacuum will eventually move faster. This is because viscous losses will reduce the speed of the other object. If this does not answer your question, please be more specific.

If you represent the spectral peak as some functional form (Gaussian, Loretnz, etc.), you could probably analytically (or semi-numerically) work out a connection between FWHM and area under curve for a specified frequency range. This wold be true if the parameterization fixed the shape of the...