Early in this century, it was shown that the new non-Newtonian physics--known as Einstein's
Special Theory of Relativity--rested on a new, non-Euclidean geometry, which incorporated …

This book is about the methods used for unifying different scientific theories under one all-
embracing theory. The process has characterized much of the history of science and is …

The equivalence of mass m and rest-energy E 0 is one of the great discoveries of all time.
Despite the current wisdom, Einstein did not derive this relation from first principles. Having …

In this paper I draw on Einstein's distinction between “principle” and “constructive” theories
to isolate two levels of physical theory that can be found in both classical and (special) …

abstract Although Einstein's name is closely linked with the celebrated relation E ¼ mc2
between mass and energy, a critical examination of the more than half dozen ''proofs''of this …

Einstein correctly described the equivalence of mass and energy as “the most important
upshot of the special theory of relativity”(Einstein 1919), for this result lies at the core of …

This paper explores the evolution of Einstein's understanding of mass and energy. Early on,
Einstein embraced the idea of a speed-dependent mass but changed his mind in 1906 and …

Although Einstein's name is closely linked with the celebrated relation E= mc2 between
mass and energy, a critical examination of the more than half dozen “proofs” of this relation …

Einsteinʼs theoretical analysis of mass–energy equivalence, already at the time,
experimentally evident in radioactive decays, in two papers published in 1905, as well as …

In 1905, Einstein gave his first derivation of the mass-energy equivalence by studying, in
different reference frames, the energy balance of a body emitting electromagnetic radiation …