Where did everything else come from? Supernovas, the huge unstable suns whose immense convulsions and titanic explosions are the largest and most shattering events in the universe. Untold trillions of these giant crucibles in space, erupting down the long reaches of time, are now known to have forged all the heavier elements that in turn formed the metals, the rocks, and--at least once--life itself. Did earlier civilizations watch in wonder at the flash of distant supernovas? What about the 1987 "next-door" supernova? Have supernovas ever threatened life on Earth? Will they in years to come? Offering a compelling view of supernovas and the new understanding about the evolution of the universe, Isaac Asimov's The Exploding Suns is one of the most breathtaking science books ever to address these and many other questions.

    Throughout this period, which one historian has called "the most psychically disturbed era in European history," the universe was depicted as a rational arrangement of disparate parts. The author bridges the gap between the Renaissance and today by explaining in detail these astronomical, mythical, and alchemical maps of the universe.

    Laudan both destroys and creates. With detailed, scathing criticisms, he attacks the 'pregnant confusions' in extant philosophies of science. The progress they espouse derives from strictly empirical criteria, he complains, and this clashes with historical evidence. Accordingly, Laudan constructs a remedy from historical examples that involves nothing less than the redefinition of scientific rationality and progress . . . Surprisingly, after this reshuffling, science still looks like a noble-and progressive-enterprise ... The glory of Laudan's system is that it preserves scientific rationality and progress in the presence of social influence. We can admit extra-scientific influences without lapsing into complete relativism. . . a must for both observers and practitioners of science." --Physics Today "A critique and substantial revision of the historic theories of scientific rationality and progress (Popper, Kuhn, Lakatos, Feyerabend, etc.). Laudan focuses on contextual problem solving effectiveness (carefully defined) as a criterion for progress, and expands the notion of 'paradigm' to a 'research tradition,' thus providing a meta-empirical basis for the commensurability of competing theories. From this perspective, Laudan suggests revised programs for history and philosophy of science, the history of ideas, and the sociology of science. A superb work, closely argued, clearly written, and extensively annotated, this book will become a widely required text in intermediate courses."--Choice

    

    . . while the casual reader is likely to be intrigued by the author's superior narrative ability." — Library JournalThis book is not only a fascinating introduction to the concept of number and to numbers themselves, hut a multifaceted linguistic and historical analysis of how numbers have developed and evolved in many different cultures. Drawing on evidence from history, literature, philosophy and ethnology, noted German scholar Karl Menninger. recounts the development of numbers both as they are spoken (and written as words) and as symbolic abstract numerals that can he readily manipulated and combined.Despite the immense erudition the author brings to the topic, he maintains a light tone throughout, presenting much of the information in anecdotal form. Moreover, almost 300 illustrations (photographs and drawings) and many comparative language tables serve to enhance the text. The author begins with a lucid treatment of number sequence and number language, including the formation of number words in both Indo-European and non-IndoEuropean languages, hidden number words and the evolution of the number sequence. He then turns to written numerals and computations: finger counting, folk symbols for numbers, alphabetical numerals, the "German" Roman numerals, the abacus and more. The final section concerns the development of our modem decimal system, with its place notation and zero, based on the Indian number system, and its introduction to the West through the work of the Italian mathematician Fibonacci. The author concludes with a review of spoken numbers and number symbols in China and Japan."The book is especially good on early counting and calculating devices: primitive tally sticks, the knotted cords of ancient Peru, the elaborate finger symbols once used for numbers, counting boards with movable counters, and of course the abacus." — Martin Gardner, Book World

    It traces the origins of the concept, discusses the thinkers who have shaped it, and shows how it in turn has shaped the modern perception of our place in nature. The book includes portraits of Linnaeus, Gilbert White, Darwin, Thoreau, and such key twentieth-century ecologists as Rachel Carson, Frederic Clements, Aldo Leopold, James Lovelock, and Eugene Odum. It concludes with a new Part VI, which looks at the directions ecology has taken most recently.

    Nature, species,naturalists, biography, plants and animals, history, nomenclature,