scholarly journals Gravitational Field Intensity and Shifting of Waves

2020 ◽  
Vol 10 (4) ◽  
pp. 55-57
Author(s):  
Sankar Palchoudhury
Keyword(s):  
Gravitational Field ◽  
Field Intensity ◽  
Single Frequency ◽  
The Sun ◽  
The Earth ◽  
Celestial Bodies

The celestial bodies like the sun, stars, etc., are the owner of higher gravitational field intensity areas and the ‎source of various ‎kinds of waves. Waves rush from higher gravitational field intensity areas like the sun to lower ‎gravitational field intensity ‎areas like the earth. This paper, finding out that the wave exchanges some ‎force during traveling from the sun to the ground. ‎Every wave has a frequency and each frequency of a wave ‎has two parts, crest and trough and both together is a complete ‎single frequency.‎

scholarly journals Synchronism of the Events on the Sun and the Earth - A Sign of External Influence on the Solar System

2019 ◽  
Vol 2 (3) ◽  
Keyword(s):  
Gravitational Field ◽  
Solar System ◽  
The Sun ◽  
Additional Energy ◽  
Gravitational Effects ◽  
External Influences ◽  
The Earth ◽  
The Galaxy ◽  
Celestial Bodies ◽  
Endogenous Activity

To solve fundamental and applied problems, it is useful to detect signs of external influences on the Solar system from the synchronous responses of the Earth’s shells, using a systemic and interdisciplinary analysis of solar-terrestrial relations - taking into account, along with solar activity and GCR fluxes, the endogenous activity of the Earth due to gravitational effects on the Earth with the sides of the Moon, the Sun and other celestial bodies of the Solar system during its barycentric motion in the gravitational field of the Galaxy, as well as the effects of perturbations on the Solar system as a whole. At the same time, the mechanism, energy, cyclicity, synchronism, change in the shape of the Earth and gravity, polar asymmetry and jump-like manifestations of solar-terrestrial relations, instability of the Earth’s daily rotation become explainable. The Solar system is subject to external influences of gravity of the heavy planets of Jupiter and Saturn in the course of its barycentric motion in the gravitational field of the Galaxy, as well as the bringing in solar system of additional energy when exposed to a heterogeneous interstellar environment.

scholarly journals III. On the nature and construction of the sun and fixed stars

1795 ◽  
Vol 85 ◽  
pp. 46-72 ◽  
Keyword(s):  
Central Body ◽  
Planetary System ◽  
Considerable Progress ◽  
The Sun ◽  
Great Satisfaction ◽  
The Earth ◽  
The World ◽  
Celestial Bodies ◽  
The Universe ◽  
Made In

Among the celestial bodies the sun is certainly the first which should attract our notice. It is a fountain of light that illuminates the world! it is the cause of that heat which main­tains the productive power of nature, and makes the earth a fit habitation for man! it is the central body of the planetary system; and what renders a knowledge of its nature still more interesting to us is, that the numberless stars which compose the universe, appear, by the strictest analogy, to be similar bodies. Their innate light is so intense, that it reaches the eye of the observer from the remotest regions of space, and forcibly claims his notice. Now, if we are convinced that an inquiry into the nature and properties of the sun is highly worthy of our notice, we may also with great satisfaction reflect on the considerable progress that has already been made in our knowledge of this eminent body. It would require a long detail to enumerate all the various discoveries which have been made on this subject; I shall, therefore, content myself with giving only the most capital of them.

scholarly journals Geodesic Effect Near an Elliptical Orbit

2012 ◽  
Vol 2012 ◽  
pp. 1-8
Author(s):  
Alina-Daniela Vîlcu
Keyword(s):  
Gravitational Field ◽  
Elliptical Orbit ◽  
Newtonian Mechanics ◽  
The Sun ◽  
Classical Approach ◽  
De Sitter ◽  
Lagrange Equations ◽  
The Earth ◽  
Elliptical Motion

Using a differential geometric treatment, we analytically derived the expression for De Sitter (geodesic) precession in the elliptical motion of the Earth through the gravitational field of the Sun with Schwarzschild's metric. The expression obtained in this paper in a simple way, using a classical approach, agrees with that given in B. M. Barker and R. F. O'Connell (1970, 1975) in a different setting, using the tools of Newtonian mechanics and the Euler-Lagrange equations.

scholarly journals Accurate Time Calculations of Falling Bodies in the Earth's Gravitational Field and Comparisons with Newton's Laws of Vertical Motion

2021 ◽  
pp. 44-53
Author(s):  
A. Ebaid ◽  
Shorouq M. S. Al-Qahtani ◽  
Afaf A. A. Al-Jaber ◽  
Wejdan S. S. Alatwai ◽  
Wafaa T. M. Alharbi
Keyword(s):  
Gravitational Field ◽  
Real Life ◽  
Vertical Motion ◽  
Exact Form ◽  
Potential Danger ◽  
Accurate Calculation ◽  
The Earth ◽  
Earth’S Gravitational Field ◽  
Celestial Bodies ◽  
Newton’S Laws

The Earth is exposed annually to the fall of some meteorites and probably other celestial bodies which cause a potential danger to vital areas in several countries. Consequently, the accurate calculation of the falling time of such bodies is useful in order to take the necessary procedures for protecting these areas. In this paper, Newton’s law of general gravitation is applied to analyze the vertical motion in the Earth’s gravitational field. The falling time is obtained in exact form. The results are applied on several objects in real life.

scholarly journals Mapping Orbits regarding Perturbations due to the Gravitational Field of a Cube

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Flaviane C. F. Venditti ◽  
Antonio F. B. A. Prado
Keyword(s):  
Gravitational Field ◽  
Three Dimensional ◽  
Orbital Dynamics ◽  
Keplerian Orbits ◽  
The Earth ◽  
Celestial Bodies ◽  
Good Potential ◽  
Exact Shape ◽  
Nonspherical Shape ◽  
Irregular Body

The orbital dynamics around irregular shaped bodies is an actual topic in astrodynamics, because celestial bodies are not perfect spheres. When it comes to small celestial bodies, like asteroids and comets, it is even more import to consider the nonspherical shape. The gravitational field around them may generate trajectories that are different from Keplerian orbits. Modeling an irregular body can be a hard task, especially because it is difficult to know the exact shape when observing it from the Earth, due to their small sizes and long distances. Some asteroids have been observed, but it is still a small amount compared to all existing asteroids in the Solar System. An approximation of their shape can be made as a sum of several known geometric shapes. Some three-dimensional figures have closed equations for the potential and, in this work, the formulation of a cube is considered. The results give the mappings showing the orbits that are less perturbed and then have a good potential to be used by spacecrafts that need to minimize station-keeping maneuvers. Points in the orbit that minimizes the perturbations are found and they can be used for constellations of nanosatellites.

scholarly journals No Star Evolution

2020 ◽  
pp. 40-43
Author(s):  
Lev Borisovich Velgas ◽  
Liya Lvovna Iavolinskaia
Keyword(s):  
The Sun ◽  
Star Evolution ◽  
The Earth ◽  
Celestial Bodies ◽  
The Universe

In the article, the authors’ concept is presented, according to which all planets rotate about their axis due to their satellites. The planet and its satellite are interconnected by a shared gravity, which moves along the surface of the planet as the result of the satellite moving in an orbit. The discussed movement of gravity applies to all planets and the Sun. The shared gravity is at its maximum on the Earth and Sun surface. Particular celestial bodies have their beginning, evolution and end. On the whole, the Universe has always existed and will always exist, and such major formations as galaxies and stars will never cease to exist.

A CONSIDERATION OF RADIO STAR SCINTILLATIONS AS CAUSED BY INTERSTELLAR PARTICLES ENTERING THE IONOSPHERE: PART III. THE KIND, NUMBER, AND APPARENT RADIANT OF THE INCOMING PARTICLES

1957 ◽  
Vol 35 (7) ◽  
pp. 792-798 ◽  
Author(s):  
G. A. Harrower
Keyword(s):  
Gravitational Field ◽  
Radio Source ◽  
The Sun ◽  
Hydrogen Atoms ◽  
Considerable Error ◽  
The Earth ◽  
Right Ascension

In Parts I and II, as the result of an analysis of measurements of the scintillations of the radio source in Cassiopeia, it was suggested that interstellar particles, captured by the gravitational field of the Sun, contributed to the observed features. Arguments presented here lead to the conclusion that such particles must be hydrogen atoms. The number of hydrogen atoms reaching the Earth is estimated to be 6 × 1016/m.2/sec. Their energy averages 9 or 22 electron volts, depending on whether or not they are ionized. It is concluded that the effect of this infall on the Earth's ionosphere would be more than adequate to produce scintillations. The location of the radiant, subject to the possibility of some considerable error, is judged to be right ascension 17 hours, declination −30°. Based on this position of the radiant, the velocity of the interstellar hydrogen atoms in the vicinity of the Sun is found to have the components: tangential 28 × 104 m./sec., radial 2 × 104 m./sec., and transverse 0.2 × 104 m./sec, with respect to the plane of our galax

A CONSIDERATION OF RADIO STAR SCINTILLATIONS AS CAUSED BY INTERSTELLAR PARTICLES ENTERING THE IONOSPHERE: PART II. THE ACCRETION OF INTERSTELLAR PARTICLES AS A CAUSE OF RADIO STAR SCINTILLATIONS

1957 ◽  
Vol 35 (5) ◽  
pp. 522-535 ◽  
Author(s):  
G. A. Harrower
Keyword(s):  
Gravitational Field ◽  
Radial Distance ◽  
Interstellar Space ◽  
The Sun ◽  
Collision Region ◽  
The Earth ◽  
Vector Addition ◽  
Accretion Process ◽  
Time Of Year ◽  
Distinct Features

A previously reported analysis of measurements of radio star scintillations, which showed daily variations dependent on time of year, is here interpreted to be the result of the accretion of interstellar particles by the Sun's gravitational field. After a brief general discussion of the accretion process, the measurements are examined in an attempt to provide an explanation on that basis. Five distinct features exhibited by the scintillation data are interpreted as resulting from particles arriving at the Earth as follows: directly from interstellar space, from a collision region behind the Sun (both directly and after having crossed the Earth's orbit), and from the collision region by a process of accretion in the gravitational field of the Earth. The velocities of certain of these particles are derived by simple applications of vector addition employing the known velocity of the Earth. The collision region is calculated to be located a radial distance of 200 million miles from the Sun.

scholarly journals The Sun/Moon Illusion in a Medieval Irish Astronomical Tract

Vision ◽  
2019 ◽  
Vol 3 (3) ◽  
pp. 39
Author(s):  
Helen E. Ross
Keyword(s):  
Eighth Century ◽  
Latin Translation ◽  
The Sun ◽  
Moon Illusion ◽  
15Th Century ◽  
The Earth ◽  
Celestial Bodies ◽  
Latin Version ◽  
Bending Of Light

The Irish Astronomical Tract is a 14th–15th century Gaelic document, based mainly on a Latin translation of the eighth-century Jewish astronomer Messahala. It contains a passage about the sun illusion—the apparent enlargement of celestial bodies when near the horizon compared to higher in the sky. This passage occurs in a chapter concerned with proving that the Earth is a globe rather than flat. Here the author denies that the change in size is caused by a change in the sun’s distance, and instead ascribes it (incorrectly) to magnification by atmospheric vapours, likening it to the bending of light when looking from air to water or through glass spectacles. This section does not occur in the Latin version of Messahala. The Irish author may have based the vapour account on Aristotle, Ptolemy or Cleomedes, or on later authors that relied on them. He seems to have been unaware of alternative perceptual explanations. The refraction explanation persists today in folk science.

Structure of the terrain and gravitational field of the planets: Kaula’s rule as a consequence of the probability laws by A.N. Kolmogorov and his school

2019 ◽  
Vol 485 (4) ◽  
pp. 493-496
Author(s):  
E. B. Gledzer ◽  
G. S. Golitsyn
Keyword(s):  
Random Walk ◽  
Gravitational Field ◽  
Spherical Harmonics ◽  
Empirical Data ◽  
The Moon ◽  
Linear Coefficient ◽  
Water Flows ◽  
The Earth ◽  
Order Of Magnitude ◽  
Celestial Bodies

Kaula’s empirical rule has been known for more than 50 years: the coefficients of expansion over spherical harmonics for the fluctuations of the gravitational field and terrain of the planets decrease as the number of the harmonic squared. This was found for Venus, the Moon, Mars, the asteroid Vesta, and very small celestial bodies. The inverse-square line spectra were also found for various types of the Earth’s surface on a scale of up to a hundred kilometers. From this it follows that the spectra of the terrain slope angles are constant, i.e., “white noise”. This, they are delta-correlated horizontally. These are the assumptions under which the random walk laws were derived by A.N. Kolmogorov in 1934. Using them, the equation of the horizontal probability diffusion of the terrain with the linear coefficient diffusion D is derived. Based on the empirical data, D = 1.3 ± 0.3 m for the Earth, while for Venus it is almost an order of magnitude less. The slopes resist the wind; the rock crumbles, and the water flows down the slopes as well. This consideration turns Kaula’s rule into the random walk laws (over terrain) developed by Kolmogorov in 1934.

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