What does Einstein’s famous equation E = mc2 signify?
Modern Physics and Mathematics
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Among his other accomplishments, Albert Einstein showed mathematically that there was a connection between mass and energy: energy has mass, and mass represents energy. This equation, also called the energy-mass relation, is expressed as E = mc2, in which E is energy, m is mass, and c is the speed of light. Because c is a very large number, even a very small amount of mass represents an enormous amount of energy.