The primary objective of this study is to provide a description of the major ideas about void space within and beyond the world that were formulated between the fourteenth and early eighteenth centuries. The second part of the book - on infinite, extracosmic void space - is of special significance. The significance of Professor Grant's account is twofold: it provides the first comprehensive and detailed description of the scholastic Aristotelian arguments for and against the existence of void space; and it (...) presents (again for the first time) an analysis of the possible influence of scholastic ideas and arguments on the interpretations of space proposed by the nonscholastic authors who made the Scientific Revolution possible. The concluding chapter of the book is unique in not only describing the conceptualizations of space proposed by the makers of the Scientific Revolution, but in assessing the role of readily available scholastic ideas on the conception of space adopted for the Newtonian world. (shrink)

Natural philosophy encompassed all natural phenomena of the physical world. It sought to discover the physical causes of all natural effects and was little concerned with mathematics. By contrast, the exact mathematical sciences were narrowly confined to various computations that did not involve physical causes, functioning totally independently of natural philosophy. Although this began slowly to change in the late Middle Ages, a much more thoroughgoing union of natural philosophy and mathematics occurred in the seventeenth century and thereby made the (...) Scientific Revolution possible. The title of Isaac Newton's great work, The Mathematical Principles of Natural Philosophy, perfectly reflects the new relationship. Natural philosophy became the 'Great Mother of the Sciences', which by the nineteenth century had nourished the manifold chemical, physical, and biological sciences to maturity, thus enabling them to leave the 'Great Mother' and emerge as the multiplicity of independent sciences we know today. (shrink)

Between 1100 and 1600, the emphasis on reason in the learning and intellectual life of Western Europe became more pervasive and widespread than ever before in the history of human civilization. Of crucial significance was the invention of the university around 1200, within which reason was institutionalized and where it became a deeply embedded, permanent feature of Western thought and culture. It is therefore appropriate to speak of an Age of Reason in the Middle Ages, and to view it as (...) a forerunner and herald of the Age of Reason that was to come in the seventeenth century. The object of this study is twofold: to describe how reason was manifested in the curriculum of medieval universities, especially in the subjects of logic, natural philosophy and theology; and to explain how the Middle Ages acquired an undeserved reputation as an age of superstition, barbarism, and unreason. (shrink)

When did modern science begin? -- Science and the medieval university -- The condemnation of 1277, God's absolute power, and physical thought in the late Middle Ages -- God, science, and natural philosophy in the late Middle Ages -- Medieval departures from Aristotelian natural philosophy -- God and the medieval cosmos -- Scientific imagination in the Middle Ages -- Medieval natural philosophy : empiricism without observation -- Science and theology in the Middle Ages -- The fate of ancient Greek natural (...) philosophy in the Middle Ages : Islam and western Christianity -- What was natural philosophy in the Middle Ages? -- Aristotelianism and the longevity of the medieval worldview. (shrink)

: Following Aristotle, medieval natural philosophers believed that knowledge was ultimately based on perception and observation; and like Aristotle, they also believed that observation could not explain the "why" of any perception. To arrive at the "why," natural philosophers offered theoretical explanations that required the use of the imagination. This was, however, only the starting point. Not only did they apply their imaginations to real phenomena, but expended even more intellectual energy on counterfactual phenomena, both extracosmic and intracosmic, extensively discussing, (...) among other themes, the possible existence of other worlds and the possibility of an infinite extracosmic space. The application of the imagination to scientific problems during the Middle Ages was not an empty exercise, but, as I shall show, played a significant role in the development of early modern science. (shrink)

It has long been accepted that by the third quarter of the thirteenth century at least two Latin translations had been made from the Greek text of the Pneumatica of Hero of Alexandria. Evidence of the first of these was discovered by Valentin Rose in Henricus Aristippus' prologue to his translation of Plato's Phaedo completed in 1156. Some fifty years later, on the basis of a letter written in 1274 following the death of St Thomas Aquinas, Alexander Birkenmajer attributed a (...) second translation to William of Moerbeke. It will be the burden of this paper to deny both of these claims and, incidentally, to emphasize how little indeed was known of that potentially significant work in the Middle Ages. Not until the sixteenth century did it emerge as a powerful and attractive alternative to peripatetic theories of matter and void. (shrink)

With the introduction of Greco-Islamic science and natural philosophy, medieval natural philosophers were confronted with three distinct astronomical systems: Aristotelian, Ptolemaic, and the system of al-Bitruji. A fundamental problem that each had to confront was how to explain simultaneous contrary motions in the heavens -for example, the sun's motion, which moves east to west with a daily motion while simultaneously moving west to east along the ecliptic- within an Aristotelian physical system that assumed that a simple body could have only (...) one proper motion. How medieval natural philosophers resolved this problem is the focus of the article. (shrink)

Although it is not immediately evident from the title page, this book is dedicated to William A. Wallace. This will be welcome news indeed to Wallace's many admirers, and a fitting tribute to a scholar who has contributed so much to the history and philosophy of science. The sixteen articles that comprise the volume are almost evenly split between the philosophy and history of science, with seven articles included within philosophy of science in Part I under the rubric of "Contemporary (...) Issues," and nine articles on the history of science in Part II bearing the title "Historical Studies." In a helpful, brief introduction, the editor briefly describes each article, most of which emphasize methodology. (shrink)