The international bestseller: an introduction to the theory of relativity by the eminent physicists Brian Cox and Jeff ForshawWhat does E=mc2 actually mean? Dr. Brian Cox and Professor Jeff Forshaw go on a journey to the frontier of twenty-first century science to unpack Einstein's famous equation. Explaining and simplifying notions of energy, mass, and light-while exploding commonly held misconceptions-they demonstrate how the structure of nature itself is contained within this equation. is one of the most exciting and accessible explanations of the theory of relativity.