Abstract

Located at a distance of discussions that is immersed the experimental physics in the late nineteenth century's the figure of Albert Einstein emerges strongly in 1905 following the publication in his article Zur Eletrodynamik Bewegter Korper of un issue in the form of paradox that had made incompatible Galilean-Newtonian's principle of relativity and propagation of light law to date. In the first part of our paper we try to open the question presented by the young physicist on the basis of an example and through their development to found in the second part "the conditions of possibility" that make it possible not only the development the special theory of relativity that would change the old concepts of space and time, but also a way of thinking which influenced by suspicion's empiricism of Mach and the power of imagination developed by Hume, it would open up a new way of looking the reality for contemporary thinking.