Mathematical Physics

1103 Submissions

[3] viXra:1103.0115 [pdf] replaced on 2012-04-11 06:16:58

A Note on the Action at a Distance

Authors: José Francisco García Juliá
Comments: 5 Pages.

We consider that the action at a distance is carried out by virtual carriers of the force, which are created and annihilated in the vacuum by the field in a time less than that of the Heisenberg's uncertainty.
Category: Mathematical Physics

[2] viXra:1103.0114 [pdf] submitted on 30 Mar 2011

The Finite Element Method (Fem)to Finding the Reverberation Times of Irregular Rooms

Authors: Jalil Olia, Vahid Afshinmehr
Comments: 20 pages

In this paper we applied a finite element method to finding the effects on the reverberation times of common irregularities like curved surfaces, non-parallel walls and large open-walled ante-rooms, found in auditoria. The number of modes having a reverberation time in a specified time interval is expressed as a function of the total allowed degrees of freedom and it is shown that even when the number of degrees of freedom of the model is large there is, in general, no one dominant group. Curved surfaces in particular lead to a situation where some modes have very long reverberation times, leading to bad acoustics. In such situations a knowledge of the offending mode shapes give an indication on where to position absorptive material for optimum effect.
Category: Mathematical Physics

[1] viXra:1103.0012 [pdf] replaced on 2013-06-26 16:43:29

Double Torus Cosmology Reveals Cosmic Microwave Background To Measure Dark Energy.

Authors: Dan Visser
Comments: 7 Pages. version 2 removes a ommission the notation of the formula, however renewed analysis implies no change in calculated results

This paper announces dark energy to be measured as a cosmic microwave background frame in the Double Torus hypothesis. This Double Torus (CMB)-frame is related to a specific quantum-state of dark energy and dark matter. In addition this paper also refers to a planned dark energy interferometer-project, which is expected to be operational in 2014. Both aspects can be combined in order to get a better expectation and interpretation of the detection of dark energy. This paper has motivated me to calculate a specific value for the Double Torus dark energy. The calculated value is about 4 x 10^-114 [X.s] in 6.4 x 10^-48 [m^2]. A new kind of spin-quantum-state [X.s] is introduced as a property of dark energy in the Double Torus. Probably this paper might be of interest to the dark energy interferometer-project. It surely is of importance for the discrepancy that exists in vacuum energy density.
Category: Mathematical Physics