Albert Einstein (1879-1955), physicist and German mathematician, whose theory of Space Relativity changed the ideas on the space, the time and the nature of the universe. In 1905, it used the quantum theory successfully to explain the photoelectric effect, receiving therefore Physic's Nobel in 1921.Ainda in 1905, presented the special theory of relativity, describing the effect of the movement in the form of observed values of length, mass and time. The consequence of this theory is that the mass, m, are equivalent to the energy, and, an express concept for the E=mc equation, where c is the speed of the light. This is the base of all the calculations of the set free energy for nuclear reactions. It expanded its ideas in the general theory of the relativity, published in 1915, that he is centered in the gravitation and the effect of the sped up movement. Being Jewish, he was pursued by the nazistas and in 1932 he had that to leave Germany. After a fast ticket for England, he fixed himself in U.S.A. and later American citizen became. An only mathematical system passed its last years trying to develop a great unified theory - that incorporated the laws of the gravitation and the electromagnetism.