Many seemingly disparate aspects of the world, from the formation of the landscape to the process of evolution to the action of nervous systems to the behavior of the economy, all share a set of simple, easily described properties. These properties are all so similar, Per Bak writes, that they make us wonder if they are all manifestations of a single principle. Can there be a Newton's law, an f=ma, of complex behavior? In How Nature Works Bak argues that self-organized criticality, the spontaneous development of systems to a critical state, is the key to such a principle. While many theories have been proposed to describe individual complex systems, self-organized criticality is the first general theory of complex systems with a firm mathematical basis. How Nature Works, written by the discoverer of self-organized criticality, describes for general readers a concept of increasing importance. Few books offer such a compelling glimpse into the science of the future as this one.. . . In p CLIQUEZ ICI POUR TÉLÉCHARGER LIVRE