T arago (13 Ergebnisse)

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NovelasNovelasNovelas;;S.XVIIIS.XIXS.XX() Áltera. Encuadernación en tapa Blanda. Aragó, DanielHoffmann, Ernst T. A. 21 cm. Relatos célebres sobre la pinturaTapa deslucida.Tapa ilustrada. Pags.255.Volúmenes. Libro usado.

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Zustand: New. KlappentextrnrnThis scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have.
Expériences relatives à l'aimantation du fer et de l'acier par l'action du courant voltaïque.
"(ARAGO, DOMINIQUE- FRANCOIS). - THE DISCOVERY OF MAGNETIZATION BY WAY OF THE VOLTAIC CURRENT.
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In den Warenkorb(Paris, Crochard, 1820). No wrappers as extracted fron 'Annales de Chimie et de Physique', Volume 15 (2e Series). Pp. 93-102. First appearance of this importent paper in which Arago gives an account of his discovery of how iron and steel could be magnetized by the action of the voltaic current, THE FIRST STEP TOWARDS THE ELECTRI…C TELEGRAPH. "Arago . made several important contributions to electromagnetism on his own. On 20 September 1820 he announced the discovery of the temporary magnetization of soft iron by an electric current, which suggested to Ampère a theory about the nature of magnetic "currents" and provided the technological key to the electric telegraph. Ampère calculated that the magnetic power could be multiplied by twisting the current-carrying wire into a helix, and with Arago he carried out the first experiments on primitive solenoids. In his historical articles Arago was always careful to credit Ampère with the major share of this discovery, which ultimately depended upon Ampère?s mathematical theory."(DSB).Arago formed a close freinship with Fresnel,whose views on the nature of light he ardently supported. He assisted Fresnel in some of his most importent work and made original discoveries in the same field.Magie "A Source Book in Physics", p. 443 ff.
Weitere BilderFixation des images qui se forment au foyer d'une chambre obscure. (Seance du Lundi 7 Janvier 1839).
"ARAGO, FRANCOIS - LOUIS DAGUERRE. - FIRST ANNOUNCEMENT OF THE PRODUCTION OF DAGUERROTYPES.
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In den WarenkorbParis, Bachelier, 1839. 4to. No wrappers. In: "Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences", Tome VIII No. 1. Pp. 1-36. (Entire issue offered with htitles and titlepages to volume 8). Arago's paper: Pp. 4-7. Light toning to halftitle. Stamps to title-page (one punched in lower margin). Fine and clan. Firs…t printing of the first announcement and description of the production of Daguerreotypes made by Arago to the French Academy on January 7, 1839. The first complete report was printed on August 19, 1839. The presentation by Arago preceeded Daguerre's own publication "Historique de description des procédés du daguerreotype et du diorama", (1839)."Arago, himself a chemist and a member of the Chamber of Deputies, made a brief pronouncement on Daguerre's proces in the Chamber on 7 January 1839 (the paper offered). and in the following August printed the full text of his report thereon made to a joint sesion of the Chambers of Deputies and the Academy of Sciences."(PMM: 318 (Note to).
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In den Warenkorb(Paris, Bachelier), 1839. 4to. No wrappers. In: "Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences", Tome IX, No. 8 a. 14. Pp. (249-) 282 a. pp. (417-) 436. Arago's rapport: Pp. 250-267 - Daguerre's letter: pp. 423-429. Both issues clean and fine. First printing of the first official and complete report of the…invention of the "daguerreotype", the photographic process invented by Louis Daguerre. The presentation by Arago preceeded Daguerre's own publication "Historique de description des procédés du daguerreotype et du diorama", (1839). Together with Daguerre's letter to Arago in which he relates the process of heliography and describes his contract with Niépce to exploit the heliogrphis process. The Heliogravure was invented by Niépce.
Le Daguerréotype.(Analyse de la communication faite à l'Academie par M. Arago).
"DAGUERRE, LOUIS J.M. - (ARAGO, FRANCOIS). - THE FIRST DESCRIPTION OF THE PRODUCTION OF DAGUERREOTYPES.
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In den WarenkorbParis, Crochard et Comp., 1839. Contemp. hcloth. Gilt lettering to spine. In 'Annales de Chimie et de Physique', 2e series, Volume 71. (4),445,(3) pp. (Entire volume offered). Arago's paper: pp. 313-340. The first and last leaves with some browning. A few scattered brownspots. First printing of probably the first (in the Juillet… issue of Annales) official announcement of Daguerre's invention of the photographic process. The paper offered here preceeded the official report in Comptes Rendues which was published at the end of 1839 (in the July-December issue). The first report of on the discovery was presented to the Royal Academy on January 7, 1839 and delivered in full on August 19, 1839 (and printed in the July-Dec. issue of Comptes Rendues). The paper also preceeded Daguerre's own publication of 1839 "Historique et description du daguerréotypie."In 1839 Arago took a personal interest in announcing and popularizing the inventions of Niepce and Daguerre, who were awarded government pensions as a result of Arago?s recognition of their inventions? potential significance."In 1829 Daguerre went into partnership with Niepce, who had managed to produce images by the action of light some three years earlier but had failed to make the process really practical. Daguerre carried on and began to use copper plates on which silver salts were deposited. ight was made to focus upon that and an image was formed. The light portions of the image darkened the salts, while the shadowy portions left them unaffected. The unchanged salt was dissolved away by sodium thiosulfate (a process that had been suggested by John Herschel and a permanent image of sorts was left behind."(Asimov).
Weitere BilderFixation des images qui se forment au foyer d'une chambre obscure. (Seance du Lundi 7 Janvier 1839). (+) Le Daguerréotype. (Seance du Lundi 19 Aout 1839).
"ARAGO, FRANCOIS - LOUIS DAGUERRE. - THE INVENTION OF THE DAGUERREOTYPE.
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In den WarenkorbParis, Bachelier, 1839. 4to. No wrappers. In: "Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences", Tome VIII (No.1)+ IX, (No. 8) Entire issues offered with htitles and titlepages to both volumes. Pp. 1-36 + Pp. 249-282 and 1 lithographed plate. The papers: pp. 4-7 and pp. 250-267. A faint stamp to top of titlep…ages. A few brownspots to titlepages. First Edition of the official and complete report of the invention of the "daguerreotype", the photographic process invented by Louis Daguerre. Together with the preliminary report of the invention (OF JANUARY 7). The presentation by Arago preceeded Daguerre's own publication "Historique de description des procédés du daguerreotype et du diorama", (1839). "When the attempt to exploit the process of daguerreotype was unsuccessfull, Daguerre and Nièpce decided to offer their method to the government. Daguerre approached Francois Jean Arago, to whom he imparted, under the seal of secrecy his processes and those of Nicéphore Niépce. It was fortunate that Arago possessed such a great insight into the invention, which he received enthusiastically. He reported the invention of the daguerretype to the Academy of Sciences on January 7, 1839. The secrecy, however, was not observed very carefully, for the "Gazette de France" published a note abouit it on January 6, 1839, although without printing any details."(Eder "History of Photography").
Weitere BilderMémoire sur la Diffraction de la lumière, où l'on examine particululièrement le phénomène des franges colorées que présentent les ombres des corps éclairés par un point lumineux. - Extrait d'une Lettre de M. Fresnel à M. Arago, sur l'influence de .
"FRESNEL, AUGUSTIN ( ARAGO, AMPÉRE, BIOT, FOURIER). - THE FINAL DOWNFALL OF THE CORPUSCULAR THEORY OF LIGHT.
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In den WarenkorbParis, Crochard, 1816-25. Bound in 2 fine recent hmorocco. In: "Annales de Chimie et de Physique, Redigées par MM. Gay-Lussac et Arago", Tome I, IV, IX, X, XI, XV, XVII, XX, XXI, XXIII, XXVIII and XXIX. Some memoirs with scattered brownspots. All but volume 15 with the orig. titlepages to the volumes. Vol. XV having instead of t…he titlepage, a sample of the orig. printed wrappers, December issue 1820. Bound at end of volume 2. The memoir, no. 25a below is inserted at the end of volume 2. Some of the memoirs having textillustrations. Some versos of titlepages with stamps. First appearances of this groundbreaking series of papers and memoirs in which Fresnel established the scientific basis for the wave theory of light and gave the theoretical framework for explaining, in the context of his theory of the transversal nature of lightwaves, the phenomena of double refraction, refraction, dispersion, polarization, interference, diffraction patterns, diffraction fringes as light spreads around objects, etc. He developed mathematically the hypothesis of the wave nature of light and he demonstrates its conformity with experience. His study of light was a dynamic interplay between theory and observation, between mathematics and experiment. - The offered series also comprises the contributions from Arago and the rapports from The French Academy's committees by Ampère, Biot and Fourier - see below nos. 6,11,14,15,a.nd 18."From the point of view of method, his investigations extended from the manual operations of the laboratory to the most abstract mathematical analyses. Few physicists since Newton had been so versatile."(Silliman in "Historical Studies in the Physical Sciences", vol. 4, p. 155.)."The wave-thory at this time was still encumbered with difficulties. Diffraction was not satisfactorily explained" for polarization no explanation of any kind was forthcoming the Huygenian construction appeared to require two different luminiferous media within double refracting bodies and the universality of that construction had been impugned by Brewster's discovery of biaxial crystals. The upholders of the emission theory, emboldened by the success of Laplace's theory of double refraction, thought the time ripe for their final triunph and as a step to this, in March 1817 they proposed Diffration as the subject of the Academy's prize for 1818. Their expectation was disappointed" and the successful memoir afforded the first of a series of reverses of which, in the short space of seven years, the corpuscular theory was completely owerthrown. The author was Augustin Fresnel."(Whittaker "A History of the Theories of Aether & Electricity", vol. 1, p.107 ff.)."This concept of transverse waves met with the greatest hostility from the scientists of the day, who could not imagine an extremely fluid and rarified ether which at the same time possessed the mechanical properties of a rigid body. Even Arago admitted that he could not follow the exuberant engineer in his ideas. ButFresnel was convinced that at last he had the key to many mysteries, and with his model of waves he gave a full clarification of the phenomena of polarization. With insuperable precision he explained a long series of extremely complicated experiments, such as those of chromatic polarization that Arago himself had discovered by chance in 1811, and which the followers of Newton could not explain in spite of all their efforts. Following this line Fresnel reached the synthesis which is his masterpiece.we must recall the final interpretation that he gave of the famous phenomenon of partial reflection by transparent surfaces, that simple phenomenon which until then had puzzled Grimaldi, Newton, and Huygens, and which in Malus's experiments had unexpectedly acquired a special importencee as it had been compared to the great mystery of double refraction."(Ronchi "The Nature of Light", p. 255 ff.).Comprising:1. Mémoire sur la Diffraction de la lumière, où l'on examine particululièrement le phénomène des franges colorées que présentent les ombres des corps éclairés par un point lumineux. "Ann.Chim.P." Tome 1. 1816. With titlepage to vol. 1. Pp. 239-281 and 1 folded engraved plate.2. Extrait d'une Lettre de M. Fresnel à M. Arago, sur l'influence de la chaleur dans les couleurs développées par la polarisation.Tome 4. 1817. With titlepage to vol. 4. Pp. 298-300.3. Lettre de M. Fresnel à M. Arago, sur l'influence du mouvement terrestres dans quelques phénomènes terrestres dans quelques phénoménes d'optique. Tome 9. 1818. With titlepage to vol. 18. Pp. 57-70.4. Note additionelle à la Lettre de M. Fresnel à M. Arago, insérée dans le dernier Cahier des Annales. Tome 9. 1818. Pp. 286-287.5. FRESNEL & ARAGO. Sur l'Action que le rayons de lumiére polarisés exercent les uns sur les autres. Tome 10. 1819. With titlepage to vol. 10. Pp. 288-305. - Also with "Extrait d'un ouvrage du P. Grimaldi intitulé: Traité physico-mathérmatique de la lumiere des couleurs et de l'iris". Pp. 306-312.6. ARAGO. Rapport par M. Arago à l'Academie des Sciences, au nom de la Commission qui avait été chargée d'examiner les Mémoires envoyés au concours pour le prix de la diffraction. Tome 11. 1819. With titlepage to vol. 11. Pp. 5-30.7. Mémoire sur la Diffraction de la Lumiere. (Extrait). (This importent Price-Memoir was only printed in full in 1826). Tome 11. 1819. Pp. 246-296.8. Suite Du Mémoire sur la Diffraction de la Lumière. Tome 11. 1819. Pp. 337-378. + Note sur des Essais ayant pour but de décomposer l'eau avec un aimant. Pp. 219-222.9. Note sur des Essais ayant pour but de décomposer l'eau avec un aimant. Tome 15. 1820. Pp. 219-222. No titlepage to vol. 15.10. Résume d'un Mémoire sur la Reflexion de la lumière. Tome 15. 1820. Pp. 379-386. Tome 15 is here represented with the last issue of the year (Decembre 1820, pp. 337-448) and instead of the titlepage having the orig. printed wrappers (bound at end of the second volume).11. ARAGO & AMPÈRE. Rapport fait à l'Academie des Sciences.
Weitere BilderLe Daguerréotype.(Analyse de la communication faite à l'Academie par M. Arago).
"DAGUERRE, LOUIS J.M. - (ARAGO, FRANCOIS). - THE FIRST DESCRIPTION OF THE PRODUCTION OF DAGUERREOTYPES.
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In den WarenkorbParis, Crochard et Comp., 1839. Orig. printed yellow wrappers (no backstrip). In 'Annales de Chimie et de Physique', 2e series, Volume 71, Juillet- issue, pp. 225-352 (entire July-issue offered with orig. wrappers and titlepage to vol. 71). Arago's paper: pp. 313-340. First printing of probably the first (the Juillet issue of An…nales) official announcement of Daguerre's invention of the photographic process. The paper offered here preceeded the official report in Comptes Rendues which was published at the end of 1839 (in the July-December issue). The first report of on the discovery was presented to the Royal Academy on January 7, 1839 and delivered in full on August 19, 1839 (and printed in the July-Dec. issue of Comptes Rendues). The paper also preceeded Daguerre's own publication of 1839 "Historique et description du daguerréotypie."In 1839 Arago took a personal interest in announcing and popularizing the inventions of Niepce and Daguerre, who were awarded government pensions as a result of Arago?s recognition of their inventions? potential significance."In 1829 Daguerre went into partnership with Niepce, who had managed to produce images by the action of light some three years earlier but had failed to make the process really practical. Daguerre carried on and began to use copper plates on which silver salts were deposited. ight was made to focus upon that and an image was formed. The light portions of the image darkened the salts, while the shadowy portions left them unaffected. The unchanged salt was dissolved away by sodium thiosulfate (a process that had been suggested by John Herschel and a permanent image of sorts was left behind."(Asimov).Together with JEAN CHARLES PELTIER "Mémoire sur la Formation des Tables des Rapports qu'il y entre la Force d'un Courant électrique et la Déviation des aiguilles des multiplicateurs" suivi de Recherches sur la Causes de Pertubation des couples thermo-électriques.", pp. 225-313.