équation masse-énergie

Traductions

• anglais

  Date : 1986

  Définition

  The statement developed by Albert Einstein that "the mass of a body is a measure of its energy content", as an extension of his 1905 Special Theory of Relativity.

  Note :

  The statement was subsequently verified experimentally by measurements of mass and energy in nuclear reactions. The equation, usually given as: E = mc², shows that when the energy of a body changes by an amount, E, no matter what form energy takes, the mass, m, of the body will change by an amount equal to E/c². (The factor c², the square of the speed of light in a vacuum, may be regarded as the conversion factor relating units of mass and energy.) This equation preducted the possibility of releasing enormous amounts of energy (in the atomic bomb) by the conversion of mass to energy.

  Termes :

  1. mass-energy equation
  2. mass energy equation

  Terme associé :

  1. Einstein equation