Classical Physics

The Electromagnetic Field Strength and the Lorentz Force in Geometric Algebra Cl(3,0)

Authors: Jesús Sánchez
Comments: 30 Pages.

In this paper, we will calculate the electromagnetic field strength and the Lorentz force in Geometric Algebra Cl(3,0). And we will compare it with their equivalent in the tensor covariant formalism. Leading to a one-to-one map in the four equations.Also, we will obtain another four extra equations that do not appear in the classical formalism, and we will explain its meaning. In the same way, we will expand the Electromagnetic field strength elements and the velocity multivector of the particle.This will lead to new equations and new elements appearing that will be explained. The most important one, is the Electromagnetic trivector Bxyz.Lastly, an insight of the possible implications in the Dirac Equation of these acquirements will be commented.
Category: Classical Physics

Wiring of a Jaycar Null Model Cable: First Results

Authors: Sunny Daniels
Comments: 4 Pages. I think that "Electronics" (which I think exists in arXiv) would be the most appropriate arXiv category for this paper, but there doesn't seem to be any such category in viXra, so I used "Classical Physics".

I completed the null modem cable testing apparatus that I described in https://vixra.org/abs/2208.0032 (for recovery of the old 1990s e-mails from Dr Michael Lennon: https://vixra.org/abs/2201.0097) and used it to attempt to discover the exact wiring of the null modem cable from Jaycar. It appears that I succeeded! My results are published here. However, a word of warning: I have not checked these results thoroughly. I would like to re-check these in the near future. If readers think that any particular part of these results is wrong, PLEASE TELL ME!
Category: Classical Physics

Lecture Notes On Celestial Mechanics: Elements of Central Configuration For Undergraduate Students (Part I)

Authors: Abdelmajid Ben Hadj Salem, Richard Moeckel
Comments: 47 Pages.

From the lectures for an advanced course on celestial mechanics which Prof. Richard Moeckel gave in Trieste in 1994 on the topic - Central configurations of the n-body problem - that was one of his favorites, I have decided to develop a part of it as an introduction course for the undergraduate students where I have added more details (gray boxes) of the proofs to be understood by undergraduate students.It is based on the handwritten notes from the 1994 Trieste course. Part I of the notes concerns 3 chapters :- chapter 1: introduction,- chapter 2: the two-body problem,- chapter 3: special solutions to the n body problem.
Category: Classical Physics

The Winding Path of the Theories of Light and the New Paradigm

Authors: Yefim Bakman
Comments: 21 Pages. 18 figures

It seems as though light is fully understood, as there are two recognized, albeit contradictory, theories for light; however, there is no appropriate theory for dark energy. In this article, we briefly discuss the tortuous path in which the theories of light have evolved and demonstrate how their paradox can be resolved by applying a new physical paradigm, in which only one entity is needed to explain dark energy and dark matter together with the phenomena of light. This article discusses the foundations of this new paradigm.
Category: Classical Physics

Is Physics a Cult Operation?

Authors: Karunakar Marasakatla
Comments: 3 Pages.

Physics community enabled the research to the state of wishful thinking, not realizing whether the work being funded, theorized and published makes any sense. This campaign is to demand an apology from physics community for spreading false narrative as science for over a century. Sign the petition if you are from general public or other branches of science demanding an apology from physics community, and sign to offer an apology if you are from the physics community.
Category: Classical Physics

The Mmana-Gal Antenna Simulator

Authors: Carlos Alejandro Chiappini
Comments: 27 Pages. carloschiappini@gmail.com

Este simulador de antenas tiene virtudes destacables. 1. Está pensado para facilitar el uso y la comprensión intuitiva de las funciones. 2. Produce simulaciones concordantes con la realidad. 3. Los resultados son directamente apicables a la práctica. 4. La versión gratuita tiene lo necesario para simular las antenas que deseemos. 5. La versión paga agrega comodidad en el caso de antenas complejas, porque resuelve detalles geométricos que la versión gratuita deja a cargo del usuario. 6. Presenta una función de optimización adecuada y efectiva, que opera perfectamente con antenas vectoriales y con antenas escalares. 7. Analiza todos losparámetros que interesan a quienes se interesan sriamente en antenas y da resultados fiables.

This antenna simulator has remarkable virtues. 1. It is intended for ease of use and intuitive understanding of functions. 2. Produces simulations consistent with reality. 3. The results are directly applicable to practice. 4. The free version has everything you need to simulate the antennas you want. 5. The paid version adds comfort in the case of complex antennas, because it solves geometric details that the free version leaves up to the user. 6. It presents an adequate and effective optimization function, which works perfectly with vector antennas and with scalar antennas. 7. It analyzes all the parameters that interest those seriously interested in antennas and gives reliable results.
Category: Classical Physics

Circuit Solution for Sensitivity Increasing of Piezoresistive Pressure Sensors

Authors: Mikhail Basov
Comments: 24 Pages.

The topic of this thesis is devoted to the use of various solutions for electrical circuits of pressure sensor (PS) chips. The piezoresistive differential amplifier (PDA) with 4 piezoresistors (PR) and piezoresistive differential amplifier with negative feedback loop (PDA-NFL) with 8 PRs used as electrical circuit. The use of deformable and non-deformable bipolar junction transistors (BjT) with vertical structure npn-type (V-NPN) and lateral structure pnp-type (L-PNP) is considered. The first, the output characteristics of developed piezoresistive PDA chip are researched in the comparative analysis relative to analog TMU18 with Wheatstone bridge (WB) circuit for 60 kPa pressure range. The analysis confirmed the possibility of sensitivity increasing by 2.2 times while maintaining the input conditions for geometry of mechanical structure and supply voltage. The second, the output characteristics of the developed piezoresistive PDA-NFL chip are researched in the comparative analysis relative to analog IPD60 with WB circuit for 60, 160 and 600 kPa pressure ranges. The analysis confirmed the possibility of sensitivity increasing by 3.5 times while maintaining the input conditions for geometry of mechanical structure, supply voltage and low errors; or minimization of chip area by 2.4 times while maintaining sensitivity. The possibility of reducing the noise of zero output signal by 20 times and the errors of temperature characteristics by more than an order relative to the parameters of piezoresistive PDA chip has been confirmed. The third, the output characteristics of ultra-highly sensitive small-sized PDA-NFL chip confirmed the possibility of simultaneously sensitivity increasing by 5.8 times and reducing chip area by 2.4 times relative to the analog IPD52 with WB circuit for 10 kPa range and while maintaining supply voltage and low errors.
Category: Classical Physics

Some Critical Comments About "Operation Features of a Narrowing Device in Separationless Three-Phase Flowmeter" by Yu. P. Filippov and a. Yu. Filippov Published In Flow Measurement and Instrumentation 68 (2019) 101578

Authors: Igor Kakorin
Comments: 2 Pages.

The experimental data or analysis presented by authors in the paper "Operation features of a narrowing device in separationless three-phase flowmeter" by Yu. P. Filippov and A. Yu. Filippov published in Flow Measurement and Instrumentation 68 (2019) 101578 break the second law of thermodynamics. We would like to pointed out to these aspects in the paper.
Category: Classical Physics