A Certain Instrument For Seeing Far

A Certain Instrument for Seeing Far

Galileo's Instruments of Credit

In six short years, Galileo Galilei went from being a somewhat obscure mathematics professor running a student boarding house in Padua to a star in the court of Florence to the recipient of dangerous attention from the Inquisition for his support of Copernicanism. In that brief period, Galileo made a series of astronomical discoveries that reshaped the debate over the physical nature of the heavens: he deeply modified the practices and status of astronomy with the introduction of the telescope and pictorial evidence, proposed a radical reconfiguration of the relationship between theology and astronomy, and transformed himself from university mathematician into court philosopher. Galileo's Instruments of Credit proposes radical new interpretations of several key episodes of Galileo's career, including his early telescopic discoveries of 1610, the dispute over sunspots, and the conflict with the Holy Office over the relationship between Copernicanism and Scripture. Galileo's tactics during this time shifted as rapidly as his circumstances, argues Mario Biagioli, and the pace of these changes forced him to respond swiftly to the opportunities and risks posed by unforeseen inventions, further discoveries, and the interventions of his opponents. Focusing on the aspects of Galileo's scientific life that extend beyond the framework of court culture and patronage, Biagioli offers a revisionist account of the different systems of exchanges, communication, and credibility at work in various phases of Galileo's career. Galileo's Instruments of Credit will find grateful readers among scholars of science studies, historical epistemology, visual studies, Galilean science, and late Renaissance astronomy.

Italian Contributions to Planetary Astronomy

This book describes the most important contributions of Italian astronomers to the development of planetary astronomy during the nineteenth century and the early part of the twentieth century. This journey through what may be regarded as the golden era of Italian astronomy commences with the discovery of Ceres, the first asteroid, now classified as a dwarf planet, and culminates in the role played by the Padua Observatory in calculating Pluto’s orbit in the 1930s. Along the way, a wealth of information is provided on the discovery of many comets and asteroids, early spectroscopic observations, drawings of planets and comets, calculations of orbits and ephemerides, and much more. The contributions of such famous figures as Giovanni Schiaparelli, Giovanni Battista Donati, Angelo Secchi, and Annibale De Gasparis are fully explained. Many of the described results are still of interest for modern astronomy, and the book appeals to a wide readership, including scholars, historians, astronomers, and the general public.