English

Einstein's E = mc^2 mistakes

History and Philosophy of Physics 2008-08-14 v2 Classical Physics

Abstract

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 that Einstein produced over a span of forty years reveals that all these proofs suffer from mistakes. Einstein introduced unjustified assumptions, committed fatal errors in logic, or adopted low-speed, restrictive approximations. He never succeeded in producing a valid general proof applicable to a realistic system with arbitrarily large internal and external (that is, translational) speeds. The first such general proof was produced by Max Laue in 1911 (for "closed" systems with a time-independent energy-momentum tensor) and it was generalized by Felix Klein in 1918 (for arbitrary time-dependent "closed" systems).

Keywords

Cite

@article{arxiv.0805.1400,
  title  = {Einstein's E = mc^2 mistakes},
  author = {Hans C. Ohanian},
  journal= {arXiv preprint arXiv:0805.1400},
  year   = {2008}
}

Comments

10 pages. This revision makes a clearer distinction between how high-speed translational motion and high-speed internal motions in a system affect Einstein's first derivation of E = mc^2

R2 v1 2026-06-21T10:39:04.058Z