Mass-energy equivalence is the principle in physics that mass and energy in a system's rest frame are related and differ only by a multiplicative constant, expressed in Albert Einstein's formula E equals mc squared.
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1. Mass-Energy Equivalence (Wikipedia)
WikipediaLead section (entity-description)
In physics, mass-energy equivalence is the relationship between mass and energy in a system's rest frame. The two differ only by a multiplicative constant and the units of measurement. The principle is described by the physicist Albert Einstein's formula: E = mc2.
Lead section (proposed-year)
The principle first appeared in Does the inertia of a body depend upon its energy-content?, one of his annus mirabilis papers, published on 21 November 1905.
Lead section (proposed-by)
The principle first appeared in Does the inertia of a body depend upon its energy-content?, one of his annus mirabilis papers, published on 21 November 1905.
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