Articles of several pages define and explain most of the important concepts of turbulence, covering both fully developed turbulence in two and three dimensions, and weak turbulence in systems of one and two dimensions. Among them are extended self-similarity, numerical simulations, optical turbulenc

The present volume comprises the contributions of some of the participants of the NATO Advance Studies Institute "Turbulence, Weak and Strong," held in Cargese, in August 1994. More than 70 scientists, from seniors to young students, have joined to- gether to discuss and review new (and not so new) ideas and developments in the study of turbulence. One of the objectives of the School was to incorporate, in the same meeting, two aspects of turbulence, which are obviously linked, and which are often treated sep- arately: fully developed turbulence (in two and three dimensions) and weak...