In this critical edition of Nicole Oresme's 14th-century treatise on atmospheric refraction, Oresme uses optics and infinitesimals to help solve this vexing problem of astronomy, proposing that light travels along a curve through the atmosphere, centuries before Hooke and Newton.

It has been called “the most singular centaur that religion and science have ever produced” (Franz Boll). Astrology as a cultural form has puzzled and fascinated generations of humankind. It reached its apogee in the European Renaissance, when it flourished in literature, political expression, medicine, art, and all the other areas of endeavor catalogued in this unique collection. Brill’s Companion to Renaissance Astrology brings together a wide array of expertise from around the globe to explain the method and matter of this cultural form, including the Arab and Classical heritage, the medieval tradition, the clash with organized religion, the influence on knowledge and the competition with newly emerging ways of knowing, summarizing the current state of research and suggesting new paths. Contributors include: Giuseppe Bezza, Dieter Blume, Claudia Brosseder, Brendan Dooley, William Eamon, Ornella Faracovi, Hiro Hirai, Wolfgang Hübner, Eileen Reeves, Steven Vanden Broecke, and Graziella Federici Vescovini.

This Source Book explores a millennium of European scientific thought accompanied by critical commentary and annotation; nearly half the selections appear for the first time in the vernacular. Representing "science" in the medieval sense, selections include alchemy, astrology, logic, and theology as well as mathematics, physics, and biology.

This is a case study of astrology's changing status as an academic discipline in the sixteenth century. It provides fascinating new insights in the practice of Renaissance astrology, its social position, and its profound impact on the changes in early modern European science.

Although astrology was viewed with suspicion by the medieval church, it became a major area of inquiry for the renowned cardinal and scholar Pierre d'Ailly, whose astrological and apocalyptic writings had a significant influence on Christopher Columbus. D'Ailly's writings on the stars, the focus of this book, clearly illustrate the complex relationships among astrology, science, and Christian thinking in the late Middle Ages. Through an examination of his letters, sermons, and philosophical, astrological, and theological treatises, Laura Ackerman Smoller reveals astrology's appeal as a scientific means to interpret history and prophecy, and not merely as a magical way to forecast and manipulate one's own fate. At the same time, she shows how d'Ailly dealt with delicate problems--such as free will and God's omnipotence--in elevating astrology to a compelling, but not always consistent, "natural theology." The French cardinal's most intriguing prediction was for the advent of Antichrist in 1789, one that stemmed from his deep concern over the Great Schism (1378-1414). Smoller maintains that the division in the church led d'Ailly to fear the imminence of the apocalypse, and that he eventually turned to astrology to quell his apocalyptic fears, thereby gaining confidence that a church council could heal the Schism. In elucidating the place of astrology in medieval society, this book also affords a personal glimpse of a man facing a profound crisis. Originally published in 1994. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

The story of the history of Western astrology begins with the philosophers of Greece in the 5th century BC. the Greeks added numerology, geometry and rational thought. The philosophy of Plato and later of the Stoics made astrology respectable, and by the time Ptolemy wrote his textbook the Tetrabiblos, in the second century AD, the main lines of astrological practice as it is known today had already been laid down. In future centuries astrology shifted to Islam only to return to the West in medieval times where it flourished until the shift of ideas during the Renaissance.

Written in honor of John E. Murdoch's seventieth birthday, the essays collected here focus on the interpretation of ancient and scientific texts not just as isolated intellectual productions but as responses to particular settings or contexts.