Special Relativity — Applications to astronomy and the accelerator physics. (arXiv:2007.07780v2 [physics.class-ph] UPDATED)
<a href="http://arxiv.org/find/physics/1/au:+Saldin_E/0/1/0/all/0/1">Evgeny Saldin</a>

There are many books on the classical subject of special relativity. However,
after having spent a number of years, both in relativistic engineering and
research with relativity, I have come to the conclusion that there exist a
place for a new book. I do believe that the present book is not quite the same
as the others, mainly due to attempt to cast light on dark corners. I should
make it clear what this little book is not. It is not a textbook on relativity
theory. What the book is about is the nature of special relativistic
kinematics, its relation to space and time, and the operational interpretation
of coordinate transformations. Every theory contains a number of quantities
that can be measured by experiment and an expressions that cannot possibly be
observed. Whenever we have a theory containing an arbitrary convention, we
should examine what parts of the theory depend on the choice of that convention
and what parts do not. The distinction is not always made and many authors
claim some data to be observable, according to arbitrary conventions, which do
not correspond to any physical experiment. This leads to inconsistencies and
paradoxes that should be avoided at all cost.

There are many books on the classical subject of special relativity. However,
after having spent a number of years, both in relativistic engineering and
research with relativity, I have come to the conclusion that there exist a
place for a new book. I do believe that the present book is not quite the same
as the others, mainly due to attempt to cast light on dark corners. I should
make it clear what this little book is not. It is not a textbook on relativity
theory. What the book is about is the nature of special relativistic
kinematics, its relation to space and time, and the operational interpretation
of coordinate transformations. Every theory contains a number of quantities
that can be measured by experiment and an expressions that cannot possibly be
observed. Whenever we have a theory containing an arbitrary convention, we
should examine what parts of the theory depend on the choice of that convention
and what parts do not. The distinction is not always made and many authors
claim some data to be observable, according to arbitrary conventions, which do
not correspond to any physical experiment. This leads to inconsistencies and
paradoxes that should be avoided at all cost.

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