Content uploaded by Charles Davi
Author content
All content in this area was uploaded by Charles Davi on Sep 02, 2020
Content may be subject to copyright.
A preview of the PDF is not available
A Combinatorial Model of Physics
Preprints and early-stage research may not have been peer reviewed yet.
Abstract and Figures
We present a model of physics rooted in discrete mathematics that implies the correct equations for time-dilation, gravity, charge, magnetism, and is consistent with the fundamentals of quantum mechanics. We show that the model presented herein is consistent with all experiments, of which we are aware, that test the Theory of Relativity, and propose experiments that would allow for the model presented herein to be distinguished from the Theory of Relativity. However, the differences between equations implied by the Theory of Relativity and the model presented herein are so small, that they are beyond the error of any experiments of which we are aware. Moreover, unlike the Theory of Relativity, the model presented herein makes use of objective time, but nonetheless implies time-dilation will occur, as a local phenomenon, with the rate at which a system progresses through its states determined by the ratio between its kinetic energy to its total energy. Finally, unlike the Theory of Relativity, the model presented herein follows deductively from assumptions about the mechanics of elementary particles, and is not rooted in any assumptions about the nature of time itself.
Figures - uploaded by Charles Davi
Author content
All figure content in this area was uploaded by Charles Davi
Content may be subject to copyright.
ResearchGate has not been able to resolve any citations for this publication.
On 2017 August 17, the gravitational-wave event GW170817 was observed by the Advanced LIGO and Virgo detectors, and the gamma-ray burst (GRB) GRB 170817A was observed independently by the Fermi Gamma-ray Burst Monitor, and the Anti-Coincidence Shield for the Spectrometer for the International Gamma-Ray Astrophysics Laboratory. The probability of the near-simultaneous temporal and spatial observation of GRB 170817A and GW170817 occurring by chance is . We therefore confirm binary neutron star mergers as a progenitor of short GRBs. The association of GW170817 and GRB 170817A provides new insight into fundamental physics and the origin of short GRBs. We use the observed time delay of between GRB 170817A and GW170817 to: (i) constrain the difference between the speed of gravity and the speed of light to be between and times the speed of light, (ii) place new bounds on the violation of Lorentz invariance, (iii) present a new test of the equivalence principle by constraining the Shapiro delay between gravitational and electromagnetic radiation. We also use the time delay to constrain the size and bulk Lorentz factor of the region emitting the gamma-rays. GRB 170817A is the closest short GRB with a known distance, but is between 2 and 6 orders of magnitude less energetic than other bursts with measured redshift. A new generation of gamma-ray detectors, and subthreshold searches in existing detectors, will be essential to detect similar short bursts at greater distances. Finally, we predict a joint detection rate for the Fermi Gamma-ray Burst Monitor and the Advanced LIGO and Virgo detectors of 0.1–1.4 per year during the 2018–2019 observing run and 0.3–1.7 per year at design sensitivity.
DOI:https://doi.org/10.1103/PhysRev.7.355
Using an ultracentrifuge rotor, the shift of the 14.4-keV Mössbauer absorption line of Fe57 in a rotating system was measured as a function of the angular velocity omega. An Fe57 absorber was placed at a radius of 9.3 cm from the axis of the rotor. A Co57 source was mounted on a piezoelectric transducer at the center of the rotor. By applying a triangularly varying voltage to the transducer, the source could be moved relative to the absorber. This arrangement makes possible the observation of the entire resonance line at various values of omega. The measured transverse Doppler shift agrees within an experimental error of 1.1% with the predictions of the theory of relativity. Possible sources of systematic errors are discussed.
The positron-electron annihilation cross section has been measured for 50-, 100-, and 200-Mev incident positron energies. Three small proportional counters in a magnetic field determined the incident electron or positron momentum, and a large scintillation counter immediately behind the absorber indicated the disappearance of a particle. The positron annihilation cross section was determined by subtracting the electron loss rate (due mainly to bremsstrahlung energy losses) from the positron loss rate. The cross sections obtained at 50, 100, and 200 Mev were, respectively, 11.0±2.5, 6.3±1.2, and 3.7±0.6 millibarns per electron in a beryllium absorber, in good agreement with Dirac's two-quantum annihilation cross section. The presence of annihilation radiation was detected in coincidence with the disappearance of a positron within a small cone in the forward direction.