[socratus]

Maxwell's theory considered action of an electromagnetic field.
Fitzgerald and Lorents first began to consider electron in this theory.
Then and other scientists ( Poincare, Abraham, Einstein) become interested
with this question. And, proceeding from the Maxwell's theory,
Einstein has created SRT.
The Maxwell's theory and SRT are interconnected theories.
The main and unique hero of this theory is electron.
And only electron has changes which are described by SRT..
* * *
But!
But all have taken a great interest in only mathematical calculations and
began to consider changes of the car, train, plane, rocket
from the point of SRT view.
It is only mathematical abstraction.
How is it possible to compare electron with the car, train?
Unless is there a theory of a train, creating an electromagnetic field?
Unless is there a theory of a proton, creating an electromagnetic
or proton -magnetic field?
In our terrestrial life we use only service of the electromagnetic field.