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Questions related from Stefano Quattrini
Consider two clocks set just under the surface of water, they are synchronized. One of them departs at velocity v and then rejoins at -v. The overall time dilation must be the same as the one in...
15 March 2024 2,258 86 View
Anisotropy in the unidirectional one-way speed of light. https://arxiv.org/pdf/2106.09537.pdf variable refractive index https://arxiv.org/ftp/arxiv/papers/2002/2002.04390.pdf
16 December 2022 7,622 100 View
Several scientists pointed out a paradoxical consequence of the application of the Lorentz Force as an addendum to Maxwell's equations in the form given by Heaviside. There is at least one case...
02 November 2022 6,853 99 View
Dozens of experiments have been performed with light rays, beginning from Fizeau, in order to establish the local constancy of the speed of light and verify how speeds sum up. It was verified...
25 October 2021 924 60 View
25 October 2021 5,309 99 View
The field energy density /gravitational energy density is missing in General relativity but in Newtonian gravitation, it is present and negative as expected. As stated by Penrose not very...
09 April 2021 6,698 78 View
09 April 2021 5,742 79 View
09 April 2021 1,385 77 View
09 April 2021 3,073 77 View
At variance with the Lorentz Transformations, (LT) x’=γ(x-vt) ; t’= γ(t-vx/c2) https://www.fourmilab.ch/etexts/einstein/specrel/specrel.pdf the Inertial transfomation known also as...
03 October 2019 9,293 71 View
03 October 2019 2,088 100 View
In the latest years, due to unsurmountable problems of unification of the interactions and the non explicability of some observations in the universe according to the current theories (Dark matter...
19 October 2018 7,970 45 View
The Equivalence Priniciple was first found and demonstrated experimentally by Newton for inertial an gravitational masses in a stationary system. The Eötvös experiments ran for a century and...
27 May 2018 5,829 58 View
The experiment of Vessot and Levine of 1976 being a jewel in its days, due to the advanced technlogy used, left the authors a bit puzzled about the results they obtained, since the final report...
30 April 2018 657 21 View
According to the authors of: The vacuum friction paradox and related puzzles The frequency of light emitted by a moving source is shifted by a factor proportional to its velocity. We find that...
23 February 2018 6,467 6 View
At the moment there are several successful experiments which confirm, under a good degree of accuracy, the validity of Special Relativity and General Relativity. Special relativity is based on one...
23 August 2016 7,817 78 View
The WEP in the term of universality of free fall can hold only if the test body is sufficiently small so that it cannot move the center of mass of the body responsible of the gravitational field...
22 March 2016 5,583 20 View
The Harmonic coordinates, often used by Vladimir Fock when treating GRT, derive from the D'Alembertian, the Laplacian in the Minkowski space. The wave equation for the electromagnetic field in...
17 February 2016 1,597 9 View
In the 60's Schiff tried to demonstrate that some results of GRT could be derived from the WEP and special relativity in a simple way. In his "On experimental test of the General Theory of...
04 January 2016 948 71 View
The gravitational Redshift is a phenomenon which is directly related to the time dilation of the atomic clocks in a gravitational potential. Somebody still gives the interpretation of an energy...
20 December 2015 9,254 100 View
A loop of radiation is a radiation starting from the RF of an emitter, bouncing on another relative moving object (RF1) and returning to the same RF of the emitter. Such radiation loop is the same...
24 May 2015 8,817 25 View
The Least action Principle and the Maximum entropy principle survived untouched the quantum and relativistic revolutions of the XX century. The Least action (EULERO-LAGRANGE, HAMILTON, JACOBI ,...
16 April 2015 7,726 56 View
The CMBR makes our universe a cavity of black body at 2.7k, the radiation is distributed all over the universe and waves do not have a privileged directions. For this reason, by measuring it on a...
28 January 2015 6,302 73 View
An orbiting laboratory is considered in GRT as a free falling laboratory and free falling systems are locally inertial. The orbiting stability according to the least action principle seems...
21 January 2015 8,901 26 View
From the tiniest particle to the biggest bodies, the thing that certainly survives is the angular momentum; 1) leptons and hadrons posess spins 2) atoms have their angular momenta 3)...
12 November 2014 548 64 View
Two equally uniformly accelerated atomic clocks having had always the same speed, start to count at the same instants, far from gravitating bodies. Would they register a different clock rate if...
07 October 2014 1,809 18 View
The Gravitational Redshift of photons depends on the clock hypothesys. The energy of photons is unaltered crossing gravitational potential differences; the product "pco" momentum times the local...
30 September 2014 9,788 20 View
Rudolf Mossbauer won his nobel prize for discovering the effect which has his name. The nuclear recoiless resonance of gamma rays is the phenomenon which was registered in a iridium Crystal when...
30 June 2014 5,281 4 View
The Doppler Effect in accelerated motion is quite often represented by the ratio (1+gH/c2), where H is the distance between the emitter and absorber. That formula is derived with the hypothesis...
01 January 1970 3,363 100 View
The relativistic mass has been considered a "virus" by Lev OKUN in his famous paper: THE CONCEPT OF MASS IN THE EINSTEIN YEAR https://arxiv.org/pdf/hep-ph/0602037.pdf as soon as you use the...
01 January 1970 9,823 99 View
HEPA 13 filters can reach a 99.95% efficacy against particles larger than 300 nanometers. An electrostatic filter has 95% of filtering capacity over 300 nanometers. A UV system of lamps is...
01 January 1970 465 5 View
Aberration of starlight, was discovered and measured by Bradley at the end of '700. Bradely detected a constant angle of tilting of the telescope 20", the tangent of it corresponds to v/c (he was...
01 January 1970 8,872 32 View
There is a widespread tendency to assimilate the predictions of Lorentz Ether theory (LET) and Special Relativity (SR), such that most use to say that, since both are based on the same coordinate...
01 January 1970 8,670 46 View
The Sagnac effect is a very well-known phenomenon applied also in Laser Gyros and GPS. This paper shows that the Sagnac effect can be derived only with absolute simultaneity in the LAB frame...
01 January 1970 9,979 86 View
ON THE ORIGIN OF THE ANOMALOUS PRECESSION OF MERCURY’S PERIHELION https://arxiv.org/pdf/physics/0510086.pdf Action at distance in Newtonian physics is replaced by finite propagation speeds in...
01 January 1970 2,711 55 View
It is well known that two coherent optical light-waves are made interfere in LIGO and VIRGO Gravitational Wave (GW) systems (similarly to MMX experiment). The interferometers are configured in...
01 January 1970 4,041 9 View
01 January 1970 8,951 91 View
In the following paper; Length contraction as a necessary consequence of the two-way... considering a) the experimentally verified two-way SOL = c to very high accuracy [1],[2],[3],[4] finding...
01 January 1970 4,211 50 View
01 January 1970 762 50 View
Since the experiment of Yves and Stilwell in 1938 Ives, H. E.; Stilwell, G. R. (1938). "An experimental study of the rate of a moving atomic clock". Ives, H. E.; Stilwell, G. R. (1941). "An...
01 January 1970 1,507 100 View
The Relativistic Doppler effect has been explained and derived from the invariance of the wave equation in the case of light (or from Lorentz Transformations). In relativity, it was described as...
01 January 1970 7,361 3 View
The Sagnac effect is a very well-known phenomenon applied also in Laser Gyros and GPS. The Sagnac effect for Laser Gyros is detected as an interference in a closed loop of two counter-propagating...
01 January 1970 9,414 80 View
01 January 1970 1,367 39 View
The 4/3 electromagnetic mass problem is a famous issue in classical electrodynamics. It arises when trying to compute the electromagnetic contribution to the mass of a charged particle, like an...
01 January 1970 7,098 2 View
