Mark Hobley
EQUATION OF MASS AND ENERGY

Albert Einstein derived a mathematical relationship between mass and energy as part of his theory of relativity. The relationship defines the energy obtainable from complete annihilation of matter as follows:

E=mc2

E
Energy
m
Mass
c
Speed of light

The speed of light is an extremely high value (approximately 300000 kilometers per second). Einstein's equation shows that the energy produced is the mass of the matter multiplied by the speed of light squared.

This explains why an atomic bomb creates such a tremendous explosion and why the sun shines so intensely (The sun and all the stars shine by converting mass into energy).