Causality, Electromagnetic Induction, and Gravitation PDF Download
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Author: Oleg D. Jefimenko
Publisher:
ISBN: 9780917406225
Category : Causality (Physics)
Languages : en
Pages : 0
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Book Description
Author: Oleg D. Jefimenko
Publisher:
ISBN: 9780917406225
Category : Causality (Physics)
Languages : en
Pages : 0
Get Book Here
Book Description
Author: Oleg D. Jefimenko
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 388
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Book Description
Newtons theory of gravitation is the grandest and the most enduring physical theory ever created. Today, more than 300 years after it was first conceived, Newton''s theory of gravitation is still the basic working theory of astronomers and of all the scientists dealing with space exploration and celestial mechanics. However, Newton''s theory of gravitation has serious defects: it is incapable of accounting for certain fine details of planetary motion; it does not provide any information on the temporal aspect of gravitational interactions; it cannot be reconciled with the principle of causality and with the law of conservation of momentum when it is applied to time-dependent gravitational systems.This book extends and generalizes Newton''s theory of gravitation, makes it free from the above defects, makes it fully applicable to all possible gravitational systems, and provides a large variety of methods for calculating gravitational interactions between moving or stationary bodies of all shapes, sizes and configurations.The starting point of the generalization of Newton''s theory of gravitation developed in this book is the idea that gravitational interactions are mediated by two force fields: the gravitational field proper created by all masses and acting upon all masses, and the "cogravitational" field created by moving masses only and acting upon moving masses only. In accordance with the principle of causality, the two fields are represented by retarded field integrals, which, for static or slowly-varying gravitational systems, yield the ordinary Newtonian gravitational field.An immediate consequence of the generalized Newtonian theory of gravitation developed on this basis is that gravitational interactions normally involve at least five different forces associated with velocities, accelerations and rotations of interacting bodies. The effects of these forces are quite remarkable. Some examples: a fast-moving mass passing a spherically-symmetric body causes the latter to rotate; a mass moving with rapidly-decreasing velocity exerts both an attractive and a repulsive force on neighboring bodies; a rotating mass that is suddenly stopped causes neighboring bodies to rotate; the differential rotation of the Sun is caused by the planets orbiting around it.The generalized theory of gravitation is fully compatible with the laws of conservation of energy and momentum. A very important result of this compatibility is the definitive explanation of the process of conversion of gravitational field energy into the kinetic energy of bodies moving under the action of gravitational fields.The generalized theory of gravitation predicts the existence of gravitation-cogravitational waves and explains how such waves can be generated.The generalized theory of gravitation also indicates the existence of antigravitational (repulsive) fields and mass formations. A cosmological consequence of such fields and mass formations is a periodic expansion and contraction of the Universe. Another consequence is that the actual mass of the Universe may be much larger than the mass revealed by an analysis of gravitational attraction in the galaxies.It is natural to compare the various consequences of the generalized theory of gravitation with the consequences of the general relativity theory. In this regard the following three remarks should be made.First, there are no observable gravitational effects revealed by the general relativity theory that do not have their counterparts in the generalized theory of gravitation.Second, the generalized theory of gravitation describes a vastly larger number of gravitational effects than those described by the general relativity theory.Third, numerical values for gravitational effects predicted by the general relativity theory are usually different from the corresponding values predicted by the generalized theory of gravitation; the difference is almost always a consequence of greater complexity and depth of gravitational interactions revealed by the generalized theory of gravitation.Although this book presents the results of original research, it is written in the style of a textbook and contains numerous illustrative examples demonstrating various applications of the generalized Newtonian theory of gravitation developed in the book.
Author: Oleg D. Jefimenko
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 634
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Book Description
Author: Oleg D. Jefimenko
Publisher:
ISBN: 9780917406256
Category : Electromagnetism
Languages : en
Pages : 0
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Book Description
Author: Carver A. Mead
Publisher: MIT Press
ISBN: 9780262632607
Category : Science
Languages : en
Pages : 162
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Book Description
In this book Carver Mead offers a radically new approach to the standard problems of electromagnetic theory. Motivated by the belief that the goal of scientific research should be the simplification and unification of knowledge, he describes a new way of doing electrodynamics—collective electrodynamics—that does not rely on Maxwell's equations, but rather uses the quantum nature of matter as its sole basis. Collective electrodynamics is a way of looking at how electrons interact, based on experiments that tell us about the electrons directly. (As Mead points out, Maxwell had no access to these experiments.) The results Mead derives for standard electromagnetic problems are identical to those found in any text. Collective electrodynamics reveals, however, that quantities that we usually think of as being very different are, in fact, the same—that electromagnetic phenomena are simple and direct manifestations of quantum phenomena. Mead views his approach as a first step toward reformulating quantum concepts in a clear and comprehensible manner. The book is divided into five sections: magnetic interaction of steady currents, propagating waves, electromagnetic energy, radiation in free space, and electromagnetic interaction of atoms. In an engaging preface, Mead tells how his approach to electromagnetic theory was inspired by his interaction with Richard Feynman.
Author: Leonard M. Magid
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 824
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Book Description
Author: Hendrik Antoon Lorentz
Publisher:
ISBN:
Category : Electromagnetic theory
Languages : en
Pages : 360
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Book Description
Author: I. Boldea
Publisher: Taylor & Francis
ISBN: 9789056997021
Category : Science
Languages : en
Pages : 296
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Book Description
Linear electric motors (LEMS) produce directly linear, progressive or oscillatory linear motion through electromagnetic forces. LEMS enjoy small, but very dynamic, worldwide markets in various applications, such as urban and airport people movers, loudspeakers, relays, door-lock openers, magnetic bearings, vibrators, refrigerator compressors, and small vacuum or liquid pumps. This book discusses linear induction motors, linear permanent magnetic synchronous motors, linear permanent magnet pulse motors, linear (plunger) solenoids with fast response, and linear oscillomotors. A disk containing Mathcad codes for the examples is included
Author: Astronomisches Recheninstitut
Publisher: Springer Science & Business Media
ISBN: 3662123797
Category : Science
Languages : en
Pages : 1456
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Book Description
"Astronomy and Astrophysics Abstracts" appearing twice a year has become oneof the fundamental publications in the fields of astronomy, astrophysics andneighbouring sciences. It is the most important English-language abstracting journal in the mentioned branches. The abstracts are classified under more than a hundred subject categories, thus permitting a quick survey of the whole extended material. The AAA is a valuable and important publication for all students and scientists working in the fields of astronomy and related sciences. As such it represents a necessary ingredient of any astronomical library all over the world.
Author: Francis C. Moon
Publisher: John Wiley & Sons
ISBN: 3527617531
Category : Science
Languages : en
Pages : 310
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Book Description
Presents the fundamental principles governing levitation of material bodies by magnetic fields without too much formal theory. Defines the technology of magnetic bearings, especially those based on superconductivity, and demonstrates the key roles that magnetics, mechanics and dynamics play in the complete understanding of magnetic levitation and its bearings. Features extensive figures and photos of Mag-Lev devices and summarizes recent U.S. research studies in an effort to regain the lead in Mag-Lev technologies.
