Frederick Muller. 1968. In-8. Relié. Bon état, Couv. convenable, Dos satisfaisant, Intérieur frais. 128 pages. Illustré de nombreux schémas et de nombreuses photos en noir et blanc dans le texte. Jaquette manquante.. . . . Classification Dewey : 420-Langue anglaise. Anglo-saxon
Reference : RO60123604
Drawings by Curil DEAKINS. Classification Dewey : 420-Langue anglaise. Anglo-saxon
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Henry Morley and T. Dwight, J. McCarthy,R.H. Stoddard,P. Van Dyke,A. Ellerly Bergh
Reference : 015300
(1901)
New York - London 1901 The Colonial Press Cloth
Ideal Commonwealths, comprising More's Utopia, Bacon's New Atlantis, Campanella's City of the Sun and Harrington's Oveana, Revised Editon , Volume III with introductions by Henry Morley The World's Great Classics, University Collection, limited to One Thousand Sets of which this is number 230 Editorial light green cloth, hard cover, upperside bookblock gilded, two other sides untrimmed, 24 x 16 cm, XIII and 416 pages, 3 page wide illustrations, some wear on the covers, very clean inside in excellent condition
1993 Snoeck-Ducaju & Zoon Soft cover Fine 1st Edition
Power of the Sun: The Gold of Colombia Softcover , 300 x 245 mm, 187 blz, talloze illustraties, zeer goede staat
(London, Taylor and Sons, 1870). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1869, Vol. 159 - Part I. Pp. 425-444 and 2 lithographed plates (1 with the spectrum of helium, 1 with his spectroscope (not requiring eclipses to function)). Clean and fine.
First appearance of this milestone paper in chemistry, physics and astronomy, announcing the discovery of helium in the sun and naming it 'helium' for Helios, the Greek God of the Sun. In the same paper he demonstrates his invention of the spectroscope by which the prominences of the sun could be observed and studied without an eclipse by leading the light from the very edge of the sun through a prism. - Helium was not discovered on the earth before 1895 by William Ramsay, and it was Crookes who established its identity with the helium Lockyer observed in the spectrum of the sun.""This (the last discovery) was announced on the same day by the French astronomer Janssen, who was in India observing a total eclipse. As a result, the French government some ten years later struck a medallion showing the heads of both scientists.By that time, the two men had made a much more dramatic discovery at the same time, this time in cooperation. Janssen, studying the spectrum ofthe sun during the eclipse, had noted a fine line he did not recognize. he send a report on this to Lockyer, an acknowledges expert on solar spectra. Lockyer compared the reported position of the line with lines of known elements, concluding that it must belong to a yeat unknown element, possibly not even existing on the earth. He named the element, from the Greek word for the sun.""(Asimov).
"HERSCHEL, WILLIAM. - DETRONING THE SUN AS THE CENTER OF THE UNIVERSE.
Reference : 42938
(1805)
(London, W. Bulmer and Co., 1805). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1805 - Part II. Pp. 233-256 a. 1 engraved plate, folded. Clean and fine.
First printing of an importent paper in cosmology in which Herschel's by analyzing a large number of stars, believed that he could explain the regularities he observed by assuming that the sun itself was moving toward a point in the consellation of Hercules. ""Just as Copernicus had detroned the earth as the motionless center of the universe, so Herschel detroned the sun.""(Asimov). - In this paper he tries to estimate the speed of the sun's motion.In a memoir published in 1783 Herschel had been occupied with the possibility that the sun was moving relative to the stars. ""More than 20 years later (1805, in the paper offered) Herschel took up the question again, using six of the brightest stars in a collection of the proper motions of 36 published by Maskelyne in 1790, which were much more reliable than any earlier ones, and employing more elaborate processes of calculation" again the apex was placed in the constellation of Hercules, though at a distance of nearly 30 degr. from the position given in 1783. Herschel's results were avowedly to a large extent speculative and were received by contemporary astronomers with a large measure of distrust" but a number of far more elaborate modern investigations of the same subject have confirmed the general correctness of his work.""(Berry ""A Short History of Astronomy"", p. 346.).
"HERSCHEL, WILLIAM. - DETRONING THE SUN AS THE CENTER OF THE UNIVERSE.
Reference : 45882
(1805)
(London, W. Bulmer and Co., 1805). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1805 - Part II. Pp. 233-256 a. 1 engraved plate, folded. Clean and fine.
First printing of an importent paper in cosmology in which Herschel's by analyzing a large number of stars, believed that he could explain the regularities he observed by assuming that the sun itself was moving toward a point in the consellation of Hercules. ""Just as Copernicus had detroned the earth as the motionless center of the universe, so Herschel detroned the sun.""(Asimov). - In this paper he tries to estimate the speed of the sun's motion.In a memoir published in 1783 Herschel had been occupied with the possibility that the sun was moving relative to the stars. ""More than 20 years later (1805, in the paper offered) Herschel took up the question again, using six of the brightest stars in a collection of the proper motions of 36 published by Maskelyne in 1790, which were much more reliable than any earlier ones, and employing more elaborate processes of calculation" again the apex was placed in the constellation of Hercules, though at a distance of nearly 30 degr. from the position given in 1783. Herschel's results were avowedly to a large extent speculative and were received by contemporary astronomers with a large measure of distrust" but a number of far more elaborate modern investigations of the same subject have confirmed the general correctness of his work.""(Berry ""A Short History of Astronomy"", p. 346.).