Beschreibung:

SCHEINER, Christoph (ca 1579-1650). Disquisitiones mathematicae, de controversiis et novitatibus astronomicis. Quas publice disputandas posuit, propugnavit. Ingolstadt: Wolfgang Eder and Elisabeth Angermaier, 1614.
SCHEINER, Christoph (ca 1579-1650). Disquisitiones mathematicae, de controversiis et novitatibus astronomicis. Quas publice disputandas posuit, propugnavit. Ingolstadt: Wolfgang Eder and Elisabeth Angermaier, 1614. 4 o (200 x 154 mm). Numerous woodcut illustrations and diagrams in text, two slightly extending over the margin and folded on one side. (Some scattered foxing.) Modern vellum. VERY RARE FIRST EDITION, INCLUDING EARLY ILLUSTRATIONS OF THE MOON AND THE TELESCOPE. Written while Scheiner was professor of Hebrew and mathematics at the University of Ingolstadt. While there, Scheiner trained young mathematicians and organized public debates on current issues in astronomy. This treatise is the result of one of these disputations. In it "Scheiner upheld the traditional view that the earth is at rest at the center of the universe but praised Galileo for his discovery of the phases of Venus and the satellites of Jupiter" ( DSB ). This book treats many of the problems which concerned the astronomical world of the time, especially those brought about by the newly invented telescope. There are many references to the observations made by Galileo and Scheiner. Scheiner also discusses the moon, sunspots, the moons of Jupiter, Saturn, the systems of Copernicus and Tycho Brahe, optics and the phases of Venus. Houzeau & Lancaster 2948; BM/STC 17th-century German S-594; Zinner 4484.