Einstein equation

American  

noun

Physics.

1. any of several equations formulated by Albert Einstein, especially the mass-energy equation, E=mc 2.

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Etymology

Origin of Einstein equation

First recorded in 1920–25

Example Sentences

One of the most surprising discoveries in the history of physics is Karl Schwarzschild’s black hole solution of the Einstein equation.

From Scientific American • Jul. 27, 2023

It just goes around and around, gaining energy - which means it gains mass, if you remember your handy Einstein equation, e=mc.

From Washington Times • May 12, 2018

It is generally agreed that the sun continues to radiate by converting mass into energy in accordance with the Einstein equation: mass equals energy multiplied by the velocity of light.

From Time Magazine Archive

But the mass of the resulting nuclei and neutrons is somewhat less than the mass of the original nucleus; the missing matter�as predicted by the famed Einstein equation E=mc2�has been converted into energy.

From Time Magazine Archive

Since the 1936 edition, the physicists too have been busy producing words and expressions for everyday use, e.g., atomic pile, chain reaction, Einstein equation and fissionable.

From Time Magazine Archive