In many domains one encounters "systems" of interacting elements, elements that interact more forcefully the closer they may be. The historical example upon which the theory offered in this book is based is that of magnetization as it is described by the Ising model. At the vertices of a regular lattice of sites, atoms "choos e" an orientation under the influence of the orientations of the neighboring atoms. But other examples are known, in physics (the theories of gasses, fluids, .. J, in biology (cells are increasingly likely to become malignant when their neighboring cells are malignant), or in medecine (the spread of contagious deseases, geogenetics, .. .), even in the social sciences (spread of behavioral traits within a population). Beyond the spacial aspect that is related to the idea of "neighboring" sites, the models for all these phenomena exhibit three common features: - The unavoidable ignorance about the totality of the phenomenon that is being studied and the presence of a great number of often unsuspected factors that are always unquantified lead inevitably to stochastic models. The concept of accident is very often inherent to the very nature of the phenomena considered, so, to justify this procedure, one has recourse to the physicist's principle of indeterminacy, or, for example, to the factor of chance in the Mendelian genetics of phenotypes.
Covering 2000 years--from Roman times through the Cold War--this book describes the evolution of military architecture in the territory today known as the Netherlands. A vital ally of the Dutch--their numerous rivers and canals--played a central role in the defensive strategy of the country, particularly since the 17th century. A general history covers the innovators, architects and engineers of each period and their involvement in the development of fortifications. Illustrations detail the technical features of defensive structures, alongside discussion of the weapons and tactics they were designed confront.
This book describes and illustrates French fortifications from 1715 (the death of Louis XIV) to 1815 (the fall of Napoleon), focusing particularly on the Napoleonic era. After an historical background, it covers the heritage of the Ancien Regime with the important contributions of Vauban (the bastioned defense), Gribeauval's reforms in artillery, and Montalembert's innovations. Chapters explore the style of Napoleonic fortifications, siege warfare, artillery and engineering corps, as well as the Napoleonic achievements in France, Italy, German and the Netherlands, including projects that were planned but never completed.
This is an ideal first introduction to French for anyone who wants to acquire a basic knowledge of the language.The course consists of twenty-eight short units and is carefully graded so that by the end of the book you will have learned the essential core vocabulary and grammar of French quite enjoyably.
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