Einstein paper
DOI: 10.1063/PT.5.031316
On this day in 1905, a paper arrived at the editorial offices of the journal Annalen der Physik. The author was Albert Einstein; the title was “Does the Inertia of a Body Depend Upon Its Energy Content?” In the paper, Einstein introduced the concept of matter-energy equivalence. Although E = mc² does not appear in the paper, the famous equation is present implicitly in the sentence, “If a body gives off the energy L in the form of radiation, its mass diminishes by L/c².”
Date in History: 27 September 1905