The “Scientific Revolution” of the seventeenth century cannot adequately be assessed without an appreciation of the achievements and limitations of those, whether giants or dwarfs, on whose shoulders Galileo and his contemporaries stood. And since for many historians Galileo's main contribution lies in the mathematization of the natural world and especially of time and motion, particular interest attaches to medieval treatises dealing with these questions, above all to those which were in widespread demand early in the sixteenth century.

The aim of this paper is to report some little-known aspects of sixteenth-century physics as these relate to the development of mechanics in the seventeenth century. The research herein reported grew out of a study on the mechanics of Domingo de Soto, a sixteenth-century Spanish scholastic,1 which has been concerned, in part, with examining critically Pierre Duhem's thesis that the English “Calculatores” of the fourteenth century were a primary source for Galileo's science.2 The conclusion to which this has come, thus (...) far, is that Duhem had important insights into the late medieval preparation for the modern science of mechanics, but that he left out many of the steps. And the steps are important, whether one holds for a continuity theory or a discontinuity theory vis-à-vis the connection between late medieval and early modern science. (shrink)

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At the end of the last century Paul Tannery published an article on geometry in eleventh-century Europe, which he began with the following statement:“This is not a chapter in the history of science; it is a study of ignorance, in a period immediately before the introduction into the West of Arab mathematics.”.

There is a widely acknowledged, albeit still imprecisely defined, connection between the ‘calculatory’ analyses of local motion developed within the fourteenth century ‘Merton School’ and Galileo Galilei's later treatment of natural motion. The present essay is intended to cast some light on the possible sources and significance of Galileo's putative familiarity with the medieval discussions through a study of the fortunes of the most typical representative of the School, Richard Swineshead. Particular attention is paid to the writings of such scholastic (...) philosophers of Galileo's day as Francisco Toledo, Francesco Piccolomini, Iacopo Zabarella, Francesco Buonamico and Scipione Chiaramonte. Somewhat unexpectedly, it emerges that such authors possessed only the most fragmentary and attenuated knowledge of Swineshead's ideas. The implications of this circumstance, especially insofar as it renders Galileo's familiarity with the Merton tradition even more problematical, are discussed briefly. (shrink)

JOHN E. MURDOCH AND EDITH DUDLEY SYLLA INTRODUCTION Conferences and colloquia are held and their results often published, but very rarely is any account ...