The text of Einstein is FULL of errors of all kinds.
Some are formal, like a misiing title of the introduction, missing
illustrations or missing internal references.
Some other formal errors are about the used variable names.
E.g. the system k (the moving system) was introduced with large Greek
letters as names of the axes, but also large Latin letters were used to
name the same axes in other parts of the same text.
The values of the coordinates got small letters, Latin in the case of K
and Greek in case of k.
But also this naming convention were not used all the time and e.g. x'
was at one time meant as a coordinate value in k.
This was worsened by the fact, that a third coordinate system K' was
introduced, which got also small Latin letters (x', y', z'), but with a
' (prime) sign.
This caused an ambiguity of symbols (x' and x'), what made the text hard
to interpret, because also other symbols were used with several
meanings. Especially the symbol x' was difficult to interpret, because
actually Einstein didn't define the symbols at all and left it to the
reader to identify the intended meaning.
For e.g. the tall 'A' I found eight different uses.
Also questionable was the use of generic variables like e.g. t for
special purposes (instead of using e.g. a subscript).
Another serious issue were missing external references like quotes or a
list of used material.
This was especially critical in case of Poincare and Heinrich Hertz.
Hertz was mentioned, but Einstein left open, to which of the works of
Hertz he referred.
I found possible sources in one of the books of Hertz (which btw
included the title) but found differences in the equations Hertz worte
and what Einstein wrote were 'Maxwell Hertz equations'.
Einstein had also the VERY odd habbit to add scalars to vectors or to
switch between different types of objects without notice, while
maintainig the same name (e.g. from vectors to scalars or from values to
functions).
Also the inclusion of the reader was inappropriate in most cases, as I
personally wouldn't call his equations 'our equations'.
In the methaphysical realm was most promenently the total lack of a
consideration of signal delay for light signals and how to deal with that.
Also missing was a comparison of the own results to the classical
Doppler effect, because it is actually possible, that Einstein
(unknowingly) wrote about the Doppler effect (or a certain variant of
that), but ascribed the effect to the source instead of to the influence
of relative movement upon observation.
Also odd was Einstein's discription of induction.
Actually the word 'induction' was entirely missing, but wires and moving
magnets would suggest, that he something like induction in mind.
Also missing were quotes from Maxwell, e.g. about the asymmetries in his
works, which he tried to fix.
and this goes on and on and on..
I had written about 420 annottions for a text of only 23 pages, what
made the text look predominently yellow (yellow was the color I had
chosen for my virtual marker for errors).
TH
...
TH