P.O.L.. 1996. In-8. Broché. Bon état, Couv. légèrement passée, Dos satisfaisant, Intérieur frais. 93 pages.. . . . Classification Dewey : 810-Littérature américaine
Reference : RO80257735
ISBN : 2867443571
Traduit de l'américain par Emmanuel Hocquard et Christine Michel. Classification Dewey : 810-Littérature américaine
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Dr SUN YAT-SEN (Sun Zhongshan). (Sun Zhongshan en Mandarin ou Syun Zungsaan en Cantonnais). FENGAN (Comité Fengan).
Reference : LRDI2337
(1930)
Edition Originale édité(e) à Pékin par les Editions Comité Fengan en 1930, imprimé(e) en Chinois. En 1 Vol. au format Grand In-folio (37/40 cm) de pp. Reliure au format Asiatique, Impression à Feuille Continue Repliée, Plats Cartonnés Souples recouverts d'un tissu de soie brodé, Sous Emboitage Editeur. Reliure d'Editeur.
Edition Originale, Un des 543 imprimé dans cette édition de luxe. Excellent Etat, Sans Imperfections. Nombreux(ses) Photographies Originales en hors Texte Noir et Blanc. Photos Contractuelles, Envoi soigné au coût réel de la Poste.
(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.).
(London, W. Bulmer and Co., 1801). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1801 - Part I. Pp. 265-318 and 2 folded engraved plates. Wide-margined. A few small marginal brownspots.
First appearance of an remarkable paper containing an extensive set of observations on the sunspots intermingled with what Herschel called ""ideas that obtruded themselves"" at the time of observation.""Herschel's interest in the sun was naturally stimulated by the realization that, of all the stars, it alone is close enough for detailled examination. he was aware of the various existing theories of the physical constitution of the sun. In a long paper published in 1795 he mentions some of them before his own observations...In 1801, in a second long paper (the paper offered here) in which he arranged his observations according to relevant physical questions, he modified his earlier account of the sun to include in its constitution an interior layer of dark clouds not unlike our own, this layer serving to shield the solar inhabitants from the exterior, luminous layer.