title: [Les démoiselles d'Avignon and "e = m.c2"].
abstract: Picasso, mentally travelling around the objects, indicated a process of visual disconnection of their naturals forms which ended in the recovery of the beautiful lines of euclidean geometry. In this paintings and especially in Les Démoiselles d'Avignon, the triangles and circles become plastic materials but they do not form perfect euclidean tridimensional spaces where objects must keep constant sizes and proportions. Thus, Picasso discovered or invented cubism. The characteristic void space of the perspectivistic figurative painting, became substituted by a solid space where vertical, horizontal dimensions and depth were represented in an instant. This "simultaneity" implicitly included the use of time as a fourth dimension in cubist paintings. As in Einstein's relativistic theories, in cubism the volume of the observed objects become compressed and bidimensional, and the notion of absolute space-time is ignored. In a way, cubistic paintings were contemporary illustration of Einstein's relativistic principles.
authors.forename: Alberto
authors.initials: A
authors.lastname: Portera Sánchez
mesh_terms: D000465:Algorithms; D003405:Creativity; D005197:Famous Persons; D005602:France; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D010151:Paintings / Q000266:history*; D010825:Physics / Q000266:history*; D013030:Spain