"Technical and Military Imperatives: A Radar History of World War II" is a coherent account of the history of radar in the second World War. Although many books have been written on the early days of radar and its role in the war, this book is by far the most comprehensive, covering ground, air, and sea operations in all theaters of World War II. The author manages to synthesize a vast amount of material in a highly readable, informative, and enjoyable way. Of special interest is extensive new material about the development and use of radar by Germany, Japan, Russia, and Great British. The story is told without undue technical complexity, so that the book is accessible to specialists and nonspecialists alike.

Das Internet als Eckpfeiler der modernen Informationsgesellschaft hat sowohl neue, digitale M rkte geschaffen als auch bestehende M rkte grundlegend ver ndert. Der Autor stellt die besonderen Merkmale der Internet- konomie systematisch dar. Dazu wendet er klassische konomische Modelle auf das Internet an, stellt aber auch neue Modelle vor. Die Gesetzm igkeiten der Internet- konomie werden anhand vieler Beispiele aufgedeckt, daraus der Erfolg etablierter Anbieter erkl rt und Handlungsempfehlungen f r Akteure der Internet- konomie abgeleitet.

Das Buch analysiert die zentrale Rolle von Medien, Telekommunikation und Informationstechnologie als Antriebsfaktoren auf dem Weg in eine digitale Wirtschaft: der Internet-A-konomie. Schon im Jahr 2005 wird die HAlfte der deutschen BevAlkerung online sein. Die in wesentlichen Teilen A1/4berarbeitete dritte Auflage des Buches bezieht die aktuellen Entwicklungen des dynamischen Marktes ein. In der Neuauflage werden insbesondere die Themen A-konomie der Aufmerksamkeit und Elektronic Commerce erweitert und fortgefA1/4hrt. Auch der umfangreiche Datenanhang, der die wichtigsten europAischen Kennziffern liefert, wurde auf den neuesten Stand gebracht. Mit diesem Konzept und der internationalen Einbindung steht das Buch konkurrenzlos da. Die zukunftsbezogene Analyse macht es zu einem unverzichtbaren Standardwerk fA1/4r Industrie und Wissenschaft.

Gottfried Wilhelm Leibniz (1646-1716) possessed one of history's great minds. The German philosopher, mathematician, and logician invented (independently of Sir Isaac Newton) calculus. His metaphysics bequeathed a set of problems and approaches that drove the course of Western philosophy, from Kant's eighteenth century until the present day. For over fifty years, the study of Leibniz has been a consistent passion for distinguished philosopher Nicholas Rescher. "On Leibniz" offers eleven of his essays, written with signature clarity, exploring the aspects of Leibniz's work and life that still resonate in the discipline of philosophy. Rescher's essays are snapshots of Leibniz, lucidly drawn case studies that explain the fundamentals of his ontology: the theory of possible worlds, the world's contingency, space-time frameworks, and intermonadic relationships. Several illuminating pieces reveal Leibniz as a substantial contributor to theories of knowledge. Discussions of his epistemology and methodology, its relationship to John Maynard Keynes and Talmudic scholarship, broaden the traditional view of Leibniz as a uniquely metaphysical thinker. Rescher also explores, in four absorbing biographical essays, Leibniz's scholarly development and professional career in historical context. As a andquot; philosopher courtierandquot; to the Hanoverian court, Leibniz was associated with the leading intellectuals and politicians of his era, including Spinoza, Huygens, Newton, Queen Sophie Charlotte, and Czar Peter the Great. A concluding essay holds up Leibniz's mode of philosophy as a role model for today's scholars. Rescher argues that many current problems can be effectivelyaddressed with principles of process philosophy along lines inspired by Leibniz's monadology. "On Leibniz" is essential reading for students of Leibniz and Rescher alike.