It wasn't solved per se, but discovered and described by Albert Einstein. It describes the relationship between energy and matter. What it means is that if you convert matter directly (and in a lossless manner) into energy, the amount of energy created will equal the original mass of the matter multiplied by the square of the speed of light.
Albert Einstein.Except that the equation was e = mc2
Albert Einstein.
Albert Einstein
There is no sum of e=mc2, it is an equation concerning matter and energy. e=mc2 stands for: Energy equals mass times the velocity of light squared. E = M C 2
Mass-energy equivalence
Albert Einstein
Sorry, don't understand...
Mass Energy.
Albert Einstien
Quadritic
c is the speed of light in vacuum.
M apex :)