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| viXra.org > Relativity and Cosmology > 2311 |
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[13] viXra:2311.0148 [pdf] submitted on 2023-11-29 21:49:05
Authors: Fernando Loup
Comments: 80 Pages.
General Relativity describes the gravitational field using the geometrical line element of a given generic spacetime metric where do not exists a clear difference between space andtime.This generical form of the equations using tensor algebra is useful for differential geometry where we can handle the spacetime metric tensor in a way that keeps both space and time integrated in the same mathematical entity (the metric tensor). However there are situations in which we need to recover the difference between space and time.The 3 + 1 ADM formalism allows ourselves to separate from the generic equation of a given spacetime the 3 dimensions of space(hypersurfaces) andthe time dimension.
Category: Relativity and Cosmology
[12] viXra:2311.0144 [pdf] submitted on 2023-11-28 06:07:29
Authors: Chengshen Xu
Comments: 9 Pages.
In this paper we firstly use a new method--the invariance of space-time interval and some simple linear algebra knowledge to derive Lorentz transformations and four-dimensional vectors. Finally we discuss and prove how to define the force and the momentum in relativity which has not been discussed and proved in textbooks and scientific literature. The first three dimensions of a four-dimensional momentum are defined as momentum and the derivative of momentum with respect to time is defined as force. But there is a problem that the rationality of the definition of momentum is not discussed and proved. Force and momentum cannot be arbitrarily defined. Because if our senses are sensitive and sophisticated enough, only a correct definition can guarantee that when we accelerate an object with a constant force, the momentum will increase at a constant rate. It is not necessary to be discussed in classical mechanics, because in classical mechanics the force is proportional to the acceleration and the force comes before the momentum. But it is just the opposite that the momentum comes before the force in relativistic mechanics, so it's important to discuss and prove how to define the force and the momentum in relativity. In addition the fact that the same physical process does not depend on the space-time point means that the Lorentz transformations must be linear transformations, so we can derive Lorentz transformations and four-dimensional vectors by using the invariance of space-time interval and some simple linear algebra knowledge.
Category: Relativity and Cosmology
[11] viXra:2311.0138 [pdf] submitted on 2023-11-27 21:31:13
Authors: Richard M. Blaber
Comments: 8 Pages. Creative Commons License BY-NC-ND 4.0.
This paper will argue that the Special Theory of Relativity does not unify space and time consistently, and that the Lorenz-FitzGerald transformations, which Einstein inherited from his predecessors, H.A. Lorenz and G.F. FitzGerald, fail to show how space, as such, is contracted by time dilation for moving observers in inertial reference frames.
Category: Relativity and Cosmology
[10] viXra:2311.0132 [pdf] submitted on 2023-11-26 14:21:05
Authors: Yefim Bakman
Comments: 14 Pages. 10 figures
In the early 20th century, a lack of understanding of the physical mechanism of gravity led to erroneous assumptions. In 2020, a new physical paradigm that uses only one entity to describe the world of the masses was published. That work, seven additional publications, and two videos have together clarified and illustrated the true causes of many physical phenomena including gravity, dark matter, dark energy, and electric charge.Here, we continue to reexamine physics assumptions in light of the new paradigm.
Category: Relativity and Cosmology
[9] viXra:2311.0130 [pdf] submitted on 2023-11-27 02:58:36
Authors: V. D. Krasnov
Comments: 6 Pages. In Russian
Around 1100 BC The Chinese scientist Chu Kong, observing the shadow of the gnomon during the winter and summer solstices, measured the inclination of the ecliptic to the equator and determined it to be 23° 54' 02".Since then and now it is accepted that the rotation of the planets of the solar system occurs in one plane - the ecliptic, with small deviations of a few degrees of individual planets from the plane of rotation of the Earth.The planes of rotation of all planets in the past centuries and now are characterized by only one parameter - the angle of inclination. Searches for other parameters characterizing the planes of rotation of planets have not been carried out and today they do not exist.The study showed that the movement of any objects within planetary systems occurs along a wavy surface. The study showed that the "plane" of rotation of the planets is an S-shaped surface.
Category: Relativity and Cosmology
[8] viXra:2311.0123 [pdf] replaced on 2025-03-21 05:30:51
Authors: Jeongin Choi
Comments: 7 Pages.
This paper presents a simple cosmology that incorporates absolute spacetime and relativity. It assumes the existence of absolute spacetime, where the observer is stationary in the cosmic rest frame and free from the influence of gravity. In this frame, time flows at the fastest rate, and space expands linearly. Moving travelers have a relative universe proportional to their proper time, while the age of the universe remains unified. The Hubble constant, which represents the rate of expansion of the universe, is also redefined. This simple cosmology can provide a new perspective and insights into the universe.
Category: Relativity and Cosmology
[7] viXra:2311.0106 [pdf] submitted on 2023-11-22 22:37:53
Authors: Henok Tadesse
Comments: 5 Pages.
Measuring the one-way speed of light is deemed impossible because it requires synchronizing distant clocks which in turn depends on the one-way speed of light. The constancy of the one-way speed of light in the Special Relativity theory is therefore an assumption that is not based on any direct experimental evidence. In this paper a new method to synchronize distant clocks and measure the one-way speed of light at the same time is explained. Traditionally, clock synchronization and one-way speed of light measurement are seen as two separate procedures. This paper reveals a novel yet simple way to turn a second order (time-of- flight) light speed experiment into a much more sensitive first-order experiment.
Category: Relativity and Cosmology
[6] viXra:2311.0078 [pdf] replaced on 2025-12-12 01:11:02
Authors: Dino Bruniera
Comments: 30 Pages.
In this article I demonstrate that the expansion of the Universe is slowing, and not accelerating, as the scientific community claims. In fact I have demostrated that the deduction of accelerating expansion is due to a series of successive misinterpretations of redshift, which in turn are due to a misinterpretation of the result of the Michelson-Morley experiment. However, with a correct interpretation of that result, I have deduced a correct interpretation of redshift and that the expansion of the Universe is slowing.In truth I have been arguing for several years that the expansion of the Universe is slowing, both through discussion in forums and by publishing articles online, and no one has ever managed to confute my demonstrations. But I must also say that the forums and scientific journals frequented by professional astrophysicists are controlled by the scientific community, which has not allowed me to publish my posts and articles there, and therefore they have not been reviewed by them. But recently I discovered the Quora forum platform, which allows anyone, including them, to post and read. So they can review my articles and, if they will be able, confute my arguments.
Category: Relativity and Cosmology
[5] viXra:2311.0074 [pdf] submitted on 2023-11-15 00:15:06
Authors: Gene A. Harvey
Comments: 3 Pages.
Condensed Gravitational Fields, (CGF), extends the Universal Gravitational Constant of Einstein to incorporate similarities with the other three forces into a concept that provides a different and potentially more elegant explanation for the observed anomalous velocities in galaxies, which have traditionally been attributed to the presence of dark matter. If one considers that gravity, (like the other three forces), strengthens, (or condenses), in and around mass and matter, then it is possible to reevaluate Dark Matter as a consequence of that strengthening. Very similar to magnetic fields, gravity gets stronger around matter. (Recall the "Inverse Square Law" which is fundamental to both Newton and Einstein theories.)
Category: Relativity and Cosmology
[4] viXra:2311.0066 [pdf] replaced on 2024-01-10 07:33:58
Authors: Moshe Segal
Comments: 12 Pages.
Gravity is already recognized as form of Acceleration, but the nowadays Science of Physics does not recognize (yet) the Electric Field also as a form of Acceleration.Based on structural identities between Newton's Universal Gravitational Law and Coulomb's Law, this paper provides arguments which indicate that the Electric Field should be also recognized as a form of Acceleration.This paper also proposes a relatively simple experiment, which if implemented, it might prove, (or disprove), the above presented statement that the Electric Field should be also recognized as a form of Acceleration.If this experiment will be implemented, and its results will be successful, such that the Electric Field will be also recognized as a form of Acceleration, this will also result in significant implications
Category: Relativity and Cosmology
[3] viXra:2311.0065 [pdf] submitted on 2023-11-12 00:33:19
Authors: Ervin Goldfain
Comments: 13 Pages.
Recent observations suggest that the dynamics of the primordial Universe unfolds as complex evolution outside thermodynamic equilibrium. Here we argue that a viable description of the primordial Universe must be built from concepts relevant to complex dynamics such as Self-Organized Criticality and Multifractal Geometry. This approach brings fresh insights into the early genesis of Dark Matter and into some outstanding challenges of standard cosmology.
Category: Relativity and Cosmology
[2] viXra:2311.0053 [pdf] submitted on 2023-11-10 01:10:19
Authors: Michael A. Ivanov
Comments: 14 Pages. Chapter in book: Horizons in World Physics. Volume 312, edited by A. Reimer, NY: Nova Science, 2024, pp 225-240.
A brief review of the consequences of the hypothesis about the existence of a background of superstrong interacting gravitons isgiven. Gravity is seen as a shielding effect in a sea of low-energy gravitons, and Newton's constant can be calculated as a function of the background temperature. At very small distances,the phenomenon of asymptotic freedom arises. Restrictions on the geometric language and the ban on the existence of black holes areconsidered. Additional deceleration of massive bodies occurs due to forehead and backhead collisions with gravitons. Scattering ofphotons by background gravitons leads to a redshift of distant objects, their additional darkening and the appearance of a background of scattered photons. These effects could revolutionize cosmology because they don't need dark energy, the Big Bang, etc. to explain observations.
Category: Relativity and Cosmology
[1] viXra:2311.0048 [pdf] submitted on 2023-11-08 21:33:25
Authors: Ekaterina Shurygina, Alexander V. Evako
Comments: 11 Pages.
Using the methods and results obtained in digital topology, we construct discrete two- and three-dimensional physical spaces. The structure of discrete spaces is free from constraints and can be chosen depending on external conditions. We develop local and global structure of discrete physical spaces and construct and investigate discrete black and white holes. We hypothesize that the points forming the discrete space have certain properties that turn them into sources of dark matter.
Category: Relativity and Cosmology
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