نتایج جستجو برای: gravitational forces

تعداد نتایج: 129267  

2004
Peter Grandics

This paper proposes a new geometrical theory for the formation of subatomic structures underlying electric polarities and gravitation, and describes their interactions at the sub-elemental particle level. The structures are derived from two basic observations and their interpretations. It is observed that spiral motion is a fundamental action of matter and that all material manifestation is a t...

2003
T. Visvanathan

Recent studies have revealed a relationship between variations in gravitational tidal forces and rainfall. A possible mode of interaction of the tidal forces on atmospheric processes is suggested to explain how the tidal forces which are small may induce detectable effects on atmospheric circulation, considering both synoptioscale and shortperiod processes in the atmosphere. The variability of ...

2000
M. Consoli

The basic idea that gravity can be a long-wavelength effect induced by the peculiar ground state of an underlying quantum field theory leads to consider the implications of spontaneous symmetry breaking through an elementary scalar field. We point out that Bose-Einstein condensation implies the existence of long-range order and of a gap-less mode of the (singlet) Higgs-field. This gives rise to...

2006
ROBERT L. FORWARD

This paper emphasizes certain little known aspects of Einstein's general theory of relativity. Although these features are of minor theoretical importance, their understanding and use can lead to the generation and control of gravitational forces. Three distinctly different nonNewtonian gravitational forces are described. The research areas which might lead to methods for the control of gravita...

1996
Thomas Chen William D. Walker

We solve the linearized Einstein equations for a specific oscillating mass distribution and discuss the usual counterarguments against the existence of observable gravitational retardations in the ”near zone”, where dr ≪ 1 (d = oscillation amplitude of the source, r = distance from the source). We show that they do not apply in the region dr ≈ 1, and prove that gravitational forces are retarded...

1999
Bernard F. Schutz

Gravity is one of the fundamental forces of Nature, and it is the dominant force in most astronomical systems. In common with all other phenomena, gravity must obey the principles of Special Relativity. In particular, gravitational forces must not be transmitted or communicated faster than light. This means that when the gravitational field of an object changes, the changes ripple outwards thro...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1992
B Senger F J Bafaluy P Schaaf A Schmitt J Voegel

The deposition and adhesion of particles on a solid surface are governed by a great number of interplaying forces. In this paper we analyze, by means of computer simulations, the influence of (i) the short-range repulsive forces, modeled by hard sphere interactions, (ii) the gravitational forces, and (iii) the diffusion process of the particles in the fluid on the structure of the surface cover...

2015
Paul G Savage

Traditional Newtonian mechanics treats gravity as one of the forces contributing to the acceleration of a body in motion. Newtonian natural motion is defined relative to an abstract inertial space where gravity is non-existent and free body velocity motion remains constant unless modified by applied force. With this interpretation, gravitational force is an embedded characteristic whose effect ...

2008
B. H. Lavenda

Fermat’s principle applied to a flat metric in the plane yields the phase of a Bessel function in the periodic domain for a constant index of refraction. Gravitational forces cause the index of refraction to vary and lead to a modified phase of the Bessel function. A distinction is made between the forces that cause acceleration: the gravitational force affects the optical properties of the med...

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