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Titel: De regulari motu minimaque parallaxi ...
Verlag: Udine, Nicola Schiratti, 1640
5 works in one vol, 4to (195 x 140 mm); I: pp [viii] 224, with full-page woodcut portrait of author; II: [viii] 143 [1, blank] with full-page woodcut portrait of author and woodcut illustrations in text; III [xii] 114 , with full-page woodcut portrait of author; IV [vi of viii, without the repeat of the previous portraits] 71; V [xii] 224; two sections of III and V transposed in binding (see below), overall fine, crisp copies in contemporary carta rustica, old library stamp on first title. £35,000First editions of five scientific and philosophical works concerning comets, astronomy, and light, by the Aristotelian professor Fortunio Liceti (1577-1657), colleague, friend, correspondent, and opponent of Galileo. The first title is a detailed examination of the disputes over the nature of comets and parallax, citing texts by Brahe, Kepler, Galileo, Cysat, Glorioso, Chiaramonti, Bardi.It is a major polemic in the literature of the 'controversy of the comets'. It concerns the interpretation of comets and of the supernova which appeared in Cassiopeia in 1572 and was observed by Brahe. Brahe determined that the 'new star' exhibited no parallax and that it must be in the vicinity of the other stars in Cassiopeia; therefore, it was not an 'atmospheric exhalation and was not attached to the sphere of a planet, since it did not move contrary to the direction of the diurnal rotation, but that it was situated in the region of the fixed stars . His records of its variations in color and magnitude identify it as a supernova' (DSB). The appearance of the supernova, and the determination of comets as superlunary objects provided powerful ammunition in the attack on Aristotelian notions of the heavens. The appearance of three comets in 1618 intensified this debate and the present work is a descendant of the 'controversy of the comets'. Much of the work is an attack on Scipione Chiaramonti (1565-1652), who was the author of several tracts on the comets. In 1621 Chiaramonti had his Antitycho printed, in which, using Tycho's own observations, he defended the Aristotelian notion of comets being sublunar phenomena. Kepler replied with his Tychonis Brahei Dani Hyperaspistes, adversus Scipionis Claramonti . Anti-Tychonem (1624). Chiaramonti also engaged Liceti and Glorioso in the comet debate.The second work is Liceti's treatise on the centre of the world. It is written in the form of a commentary on a dispute between Scipione Chiaramonti and Girolamo Bardi, both professors of philosophy at Pisa, and is a refutation of the Tychonic system in which the centre of the earth and the centre of the world are different. In the course of his argument Liceti refers extensively to Galileo, Galileo's opponent Orazio Grassi, Galileo's pupil Guiducci, and correspondence with Gassendi and Naudé on parallax and the nature of light, including the secondary light of the moon which was the subject of an earlier dispute between Liceti and Galileo. The woodcuts illustrate eclipses, and a camera obscura being employed in astronomical observation.The third work is a philosophical treatise on the centre and circumference, with particular reference to the nature of the universe. It opens by citing Galileo and his discovery of 'new stars', Galileo's pupil Cavalieri, Gassendi, and Liceti's persistent opponent in the 'controversy of the comets', Scipione Chiaramonti.The fourth work concerns the natural world arts such as medicine, and how they engage with each other.The fifth and final work is one of Liceti's primary treatises on the nature of light, a subject to which he devoted several other works, and concerning which he was in frequent communication with Galileo. The text discusses the theories of Galileo, along with Alhazen, Witelo, Peckham, Kepler, Aguillon, Maurolico, Lagalla, and others. Much of the text is concerned with the nature of light in astronomy, the light emanating from stars, comets, and the secondary light of the moon. For a detailed discussion of this wor. Buchnummer des Verkäufers 3949
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