What does Einstein's E=mc² equation mean?
Albert Einstein's mass-energy equivalence equation E=mc² says that energy and matter are interconvertible. In the equation, 'E' represents energy, 'm' mass, and 'c' the speed of light in vacuum which is 3 lakh km per second. A body of rest mass 'm' possesses mc² of rest energy, which explains why nuclear fission of few grams of uranium releases tremendous energy.