DESCRIPTION:
This book presents a comprehensive exposition of the theory of
electromagnetic retardation and offers a significant novel approach to the
formulation, development and use of the theory of special relativity. The
book is divided into two parts. The first part, Chapters 1 to 5, presents
the fundamentals of the theory of electromagnetic retardation with
emphasis on recently developed electromagnetic relations and mathematical
techniques. Employing as the starting point the retarded electromagnetic
field integrals rather than the traditional LienardWiechert potentials
and using the newest mathematical methods for operations with retarded
integrals, the theory is presented in a clear and logical manner, and the
applications of the theory are demonstrated by numerous wellchosen
original illustrative examples.
As Professor Jefimenko shows,
the theory of electromagnetic retardation leads to, and duplicates, many
electromagnetic relations that are customarily considered to constitute
consequences of relativistic electrodynamics. Much of the first part of
the book is devoted to establishing a bridge between the theory of
electromagnetic retardation and the theory of relativity. In the second
part of the book, Chapters 6 to 11, all the fundamental equations of the
special relativity theory, including equations of relativistic
electrodynamics and mechanics, are derived in a natural and direct way
from equations of electromagnetic retardation and from electromagnetic
force and energy equations without any postulates, conjectures, or
hypotheses. As a result, the theory of special relativity acquires a new
physical and mathematical base and becomes united with Maxwellian
electromagnetism into one simple, clear, and harmonious theory of
electromagnetic phenomena and mechanical interactions between rapidly
moving bodies. Numerous wellchosen original illustrative examples
demonstrate various applications of the relativistic electrodynamics and
relativistic mechanics developed in this part of the book.
The new approach to the
formulations of the theory of relativity presented in this book makes it
necessary to reexamine the conventional interpretation of some of the key
aspects of the special relativity theory. One of the most significant
results of this reexamination is that, although the idea of Lorentz length
contraction played an important part in Einstein's approach to the
formulation of the theory of relativity, this idea is not an integral part
of the theory of relativity itself. Another equally significant result of
this reexamination, based on an analysis of a dozen elementary
electromagnetic clocks, is that the rate of the moving clocks depends both
on the velocity and on the construction of the clocks, so that although
all the clocks examined in the book run slow when in motion, only some
clocks conform to Einstein's timedilation formula; others do not.
Finally, the novel approach to
the formulation of the special relativity theory developed in this book
leads to the conclusion that gravitational phenomena are subject to
essentially the same relativistic relations as are the electromagnetic
phenomena. Based on this conclusion, a covariant formulation of NewtonHeaviside's
gravitational theory is developed and presented in the last chapter of the
book.
An Appendix to the book
contains an analysis of the physical nature of electric and magnetic
forces and presents a novel interpretation of the "nearaction"
mechanism of electromagnetic interactions.
FROM THE AUTHOR:
This book is a sequel to my books "ELECTRICITY AND
MAGNETISM" and "CAUSALITY, ELECTROMAGNETIC INDUCTION, AND
GRAVITATION". It is a result of a further exploration of the
classical theory of fields in search of heretofore overlooked relations
between physical quantities and heretofore overlooked applications of the
theory.
As is known, electromagnetic
fields propagate with finite velocity. Therefore there always is a time
delay before a change in electromagnetic conditions initiated at a point
of space produces an effect at any other point of space. This time delay
is called electromagnetic retardation. The purpose of this book is to
formulate a detailed theory of the phenomenon of electromagnetic
retardation and to explore the basic consequences of the theory.
A very significant result of
the theory of electromagnetic retardation developed in this book is the
derivation of all essential equations of the special relativity theory
directly from the fundamental equations of the theory of electromagnetic
retardation (retarded electromagnetic field integrals) without any
postulates or hypotheses. As a result of this derivation, Maxwellian
electrodynamics and the theory of special relativity become united into
one simple, clear and harmonious theory of electromagnetic phenomena and
of mechanical interactions between rapidly moving bodies.
Although the book presents the
results of original research, it is written as a textbook and contains
numerous original illustrative examples and derivations demonstrating
various applications of the theory developed in the book.
