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.

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.

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.