The most renowned French specialists in their fields have contributed to this fourth volume in the series. The present collection sheds light on the major issues raised by cosmology, the solar system, the stars and the galaxies, the earth, the oceans and the climate, matter and its organisation, complexity, chemical transformations and the development of mathematics.With contributions from Andr Ambles, Alain Aspect, Jean Audouze, Roger Balian, S...