An English language translation of Albert Einstein's 1905 paper which
first derived the equivalence of mass and energy,
as published in the 1923 book
The Principle of Relativity.
Starting solely from the principle of relativity for
observers in uniform motion and the constancy of the
speed of light, Einstein employs an elegant kinematical
argument to deduce the most famous equation of twentieth
century physics: the equivalence of mass and energy.
In addition to
the Web edition,
ready-to-print
PostScript
and Adobe Acrobat PDF
files as well as
LaTeX source code
of this document are available.