‎Decouverte‎

‎ROMAINS JULES‎

‎Pysché : tome 1, Lucienne .‎

‎1949 NRF Gallimard 1949 bon état 278 pages in 12 broché papier jauni.‎

書籍販売業者の参照番号 : 7882

‎RONTGEN W. WILHELM CONRAD.t THE DISCOVERY OF X RAYS PMM 380‎

‎Eine neue Art von Strahlen. Vorl�ufige Mittheilung.‎

‎W�rzburg Stahel'schen K. Hof- und Universit�tsbuch und Kunsthandlung Ende 1895. 8vo. In the original printed wrappers. Offprint from "Sitzungsberichten der W�rzburger Physik -Medic. Gesellschaft" but published before the journal-issue. Lower right corner of front wrapper with repair after a 10 cm long tear no loss of text. "Gratis �berreicht / von der Verlagsbuchhandlung" stamped to lower left corner of front wrapper. Light overall soiling to wrappers internally fine and clean. No title-page as issued. 10 pp. 1 blank leaf. � First printing rare offprint in the original printed wrappers published before the journal-issue of R�ntgen's landmark discovery of X-rays: "the foundation stones of roentgenology" Garrison & Morton and "one of the most important advances in the history of scientific development" Heirs of Hippocrates. Here R�ntgen unveiled a new form of matter and offered a new revolutionary method for medical diagnosis being "the greatest advance in diagnostic medicine since the invention of the stethoscope" Norman crystallography and radioactivity - "Practically every science was improved by the new technique" Dibner.<br>R�ntgen's was the first Nobel Prize in physics given in 1901 "in recognition of the extraordinary services he has rendered by the discovery of the remarkable rays subsequently named after him." <br><br>In order to ensure priority for his discovery R�ntgen first published the paper as an offprint from "Sitzungsberichte der Physikalisch-medicinischen Gesellschaft zu W�rtzburg" in 1895. "Roentgen sent his paper "Eine neue Art von Strahlen Vorlaufige Mittheilung" to the W�rzburg Physical-Medical Society for publication in its proceedings. The article appeared in the December 1895 number of the society's journal although that number probably was not actually published until January 1896." Norman<br>Apart from a second paper on X-rays in March 1896 and a third in 1897 R�ntgen wrote no further papers on the subject leaving the elucidation of the nature of X-rays and application to others.<br><br>"Their X-rays importance in surgery medicine and metallurgy is well known. Incomparable the most important aspect of R�ntgen's experiments however is his discovery of matter in a new form which has completely revolutionized the study of chemistry and physics. Laue and the Braggs have used X-rays to show us the atomic structure of crystals. Moseley has reconstructed the periodic table of the elements. Becquerel was directly inspired by R�ntgen's results to the investigation that discovered radio-activity. Finally J. J. Thomson enunciated the electron theory as a result of investigating the nature of the X-rays." DSB.<br><br>"On Friday 8 November 1895 R�ntgen first suspected the existence of a new phenomenon when he observed that crystals of barium platinocyanide fluoresced at some distance from a Crookes tube with which he was experimenting. Hertz and Lenard had published on the penetrating powers of cathode rays electrons and R�ntgen thought that there were unsolved problems worth investigation. He found time to begin his repetition of their experiments in October 1895. Although others had operated Crookes tubes in laboratories for over thirty years it was R�ntgen who found that X rays are emitted by the part of the glass wall of the tube that is opposite the cathode and that receives the beam of cathode rays. He soon discovered the penetrating properties of the rays and was able to produce photographs of balance-weights in a closed box the chamber of a shotgun and a piece of nonhomogeneous metal. The apparent magical nature of the new rays was something of a shock even to R�ntgen and he naturally wished to be absolutely sure of the repeatability of the effects before publishing. <br>The first communication on the rays on 28 December was to the editors of the Physical and Medical Society of W�rzburg and by 1 January 1896 R�ntgen was able to send reprints and in some cases photographs to his friends and colleagues. Emil Warburg displayed some of the photographs at a meeting of the Berlin Physical Society on 4 January. The Wiener Presse carried the story of the discovery on 5 January and on the following day the news broke around the world. The world's response was remarkably swift both the general public and the scientific community reacting in their characteristic ways. For the former the apparent magic caught the imagination and for the latter Crookes tubes and generators were promptly sold in great numbers.<br>After a royal summons R�ntgen demonstrated the effects of X rays to the Kaiser and the court on 13 January. He was immediately awarded the Prussian Order of the Crown Second Class.<br>In March 1896 a second paper on X rays was published and there followed a third in 1897 after which R�ntgen returned to the study of the physics of solids. " DSB<br><br>"Aside from its obvious applications Roentgen's discovery galvanized the world of physics and led to a rash of further discoveries that so completely overturned the old concepts of the science that the discovery of X-rays is sometimes considered the first stroke of the Second Scientific Revolution. The First Scientific Revolution is of course that which included Galileo and his experiments on falling bodies. Within a matter of months investigations of X rays led to the discovery of radioactivity by Becquerel. The importance of the discovery was well recognized in its own time. In 1896 Roentgen shared the Rumford Medal with Lenard and in 1901 when Nobel Prizes were set up.the first to be honoured with a Nobel Prize in Physics was Roentgen." Asimov.<br><br>"Their importance in surgery medicine and metallurgy is well known. Incomparably the most important aspect of R�ntgen's experiments however is his discovery of matter in a new form which has completely revolutionized the study of chemistry and physics. Laue and the Braggs 406 have used the X-rays to show us the atomic structure of crystals. Mosely 407 has reconstructed the periodic table of the elements. Becquerel 393 was directly inspired by R�ntgen's results to the investigation that discovered radio-activity. Finally J. J. Thomson 386 enunciated the electron theory as a result of investigating the nature of X-rays." PMM.<br><br>PMM: 380<br>Garrison & Morton: 2683 <br>Norman: 83<br>Dibner: 162<br>Heirs of Hippocrates: 1085 <br>Horblit: 90 <br>Barchas: 1812 unknown‎

書籍販売業者の参照番号 : 50401

‎RONTGEN W. THE DISCOVERY OF X RAYS‎

‎On a New Kind of Rays.‎

‎London Macmillan and Co. 1895-96. Royal8vo. In a nice recent full green cloth binding with gilt lettering to spine. Entire issue of "Nature" November - April 1895-96 Vol. LIII 53. Occassional light brownspotting otherwise a fine and clean copy. Pp. 274-6. Entire volume: XL 624 pp. � First printing of the English translation translated by Arthur Stanton of G�ntgen's seminal paper in which he presented his groundbreaking discovery of X-rays; the foundation of roentgenology and thereby unveiling a new form of matter and offering a new revolutionary method for medical diagnosis.<br>"Translations of Rontgen's paper soon started to appear beginning with an English translation in Nature on 23 January. By 20 Febrary Nature was commenting that "so numerous are the communications being made to scientific societies that it is difficult to keep pace with them and the limits of our space would be exceeded if we attempted to describe the whole of the contributions to the subject even at this early stage." Bakker p. 319<br><br>"Their X-rays importance in surgery medicine and metallurgy is well known. Incomparable the most important aspect of R�ntgen's experiments however is his discovery of matter in a new form which has completely revolutionized the study of chemistry and physics. Laue and the Braggs have used X-rays to showus the atomic structure of crystals. Moseley has reconstructed the periodic table of the elements. Becquerel was directly inspired by R�ntgen's results to the investigation that discovered radio-activity. Finally J. J. Thomson enunciated the electron theory as a result of investigating the nature of the X-rays." DSB.<br><br>"On Friday 8 November 1895 R�ntgen first suspected the existence of a new phenomenon when he observed that crystals of barium platinocyanide fluoresced at some distance from a Crookes tube with which he was experimenting. Hertz and Lenard had published on the penetrating powers of cathode rays electrons and R�ntgen thought that there were unsolved problems worth investigation. He found time to begin his repetition of their experiments in October 1895. Although others had operated Crookes tubes in laboratories for over thirty years it was R�ntgen who found that X rays are emitted by the part of the glass wall of the tube that is opposite the cathode and that receives the beam of cathode rays. He soon discovered the penetrating properties of the rays and was able to produce photographs of balance-weights in a closed box the chamber of a shotgun and a piece of nonhomogeneous metal. The apparent magical nature of the new rays was something of a shock even to R�ntgen and he naturally wished to be absolutely sure of the repeatability of the effects before publishing. <br>The first communication on the rays on 28 December was to the editors of the Physical and Medical Society of W�rzburg and by 1 January 1896 R�ntgen was able to send reprints and in some cases photographs to his friends and colleagues. Emil Warburg displayed some of the photographs at a meeting of the Berlin Physical Society on 4 January. The Wiener Presse carried the story of the discovery on 5 January and on the following day the news broke around the world. The world's response was remarkably swift both the general public and the scientific community reacting in their characteristic ways. For the former the apparent magic caught the imagination and for the latter Crookes tubes and generators were promptly sold in great numbers.<br>After a royal summons R�ntgen demonstrated the effects of X rays to the Kaiser and the court on 13 January. He was immediately awarded the Prussian Order of the Crown Second Class.<br>In March 1896 a second paper on X rays was published and there followed a third in 1897 after which R�ntgen returned to the study of the physics of solids. " DSB<br><br>"Aside from its obvious applications Roentgen's discovery galvanized the world of physics and led to a rash of further discoveries that so completely overturned the old concepts of the science that the discovery of X-rays is sometimes considered the first stroke of the Second Scientific Revolution. The First Scientific Revolution is of course that which included Galileo and his experiments on falling bodies. Within a matter of months investigations of X rays led to the discovery of radioactivity by Becquerel.The importence of the discovery was well recognized in its own time. In 1896 Roentgen shared the Rumford Medal with Lenard and in 1901 when Nobel Prizes were set up.the first to be honoured with a Nobel Prize in Physics was Roentgen." Asimov. hardcover‎

書籍販売業者の参照番号 : 46947

‎ROSE CELLI‎

‎L'art de Tchékhov (essai).‎

‎1958 Del Duca, 1958, 172 pages (non coupé), in 8 broché, bon état général, légèrement insolé, papier jauni.‎

書籍販売業者の参照番号 : 16846

‎ROSNY, J-H aîné‎

‎La Guerre du Feu‎

‎Editions Nelson, Romans d'aventures, n°291 - Sans date - In-12, cartonnage de l'éditeur, sous jaquette illustrée en couleurs - 282 p.‎

‎Bon état de conservation - Jaquette légèrement défraichie (frottements et insolation)‎

書籍販売業者の参照番号 : 63347

‎Ross John Sir Sabine Edward Sir. Remarks on the account of the late Voyage of discovery to Baffin's Bay published by Captai‎

‎An explanation of Captain Sabine's remarks on the late voyage of discovery to Baffin's Bay 1819 Hardcover‎

‎2020. Hardcover. New. Lang: - eng Pages 65. Reprinted in 2020 with the help of original edition published long back 1819. This book is Printed in black & white Hardcover sewing binding for longer life with Matt laminated multi-Colour Dust Cover Printed on high quality Paper re-sized as per Current standards professionally processed without changing its contents. As these are old books we processed each page manually and make them readable but in some cases some pages which are blur or missing or black spots. If it is multi volume set then it is only single volume if you wish to order a specific or all the volumes you may contact us. We expect that you will understand our compulsion in these books. We found this book important for the readers who want to know more about our old treasure so we brought it back to the shelves. Any type of Customisation is possible with extra charges. Hope you will like it and give your comments and suggestions. hardcover‎

書籍販売業者の参照番号 : 1111005715069

‎ROSS, David‎

‎Some account of a botanical tour in the mountains of Auvergne and Switzerland‎

‎1861 Edinburgh : R. Grant & Son - MDCCCLXI (1861) - In-8, broché - 60 p. - Ouvrage en anglais‎

‎Bon état - Couverture défraichie - Quelques légères rousseurs dans l'ouvrage‎

書籍販売業者の参照番号 : 118816

‎Ross, Sir John‎

‎Narrative of a Second Voyage in Search of a North-west Passage and of a Residence in the Arctic Regions During the Years 1829, 30, 31, 32, 33 Incl. the Reports of Commander, Now Captain, James Clark Ross & the Disc. of the North'n Mag. Pole (Vol 1 only)‎

‎Volume I only. xxxiv, 740 pages. 25 plates - some in colour, 5 maps including 1 fold-out. Library binding. Nine-inch opening to fold-out map now bound opposite page 1. Minimal library markings. Gift greetings - dated 1866. Faint signature atop title page. Above-average external wear. Contents and binding sound. Arctic Bibliography 14866. Book‎

‎ROUSSAU, J. Jacques‎

‎La flûte d'ivoire, histoire merveilleuse.‎

‎1945 Chez Delmas à l'Enseigne des Trois Conils - 1945 - In-4,cartonnage illustré en couleurs de l'éditeur - 80 p. - Illustrations in texteAvec un envoi (dédicace) de l'auteur composé d'un texte et d'un dessin en couleurs au Docteur Chaumartin‎

‎Bon état malgré quelques traces d'usure du temps aux coiffes et aux coins - Salissures sur les plats‎

書籍販売業者の参照番号 : 86256

‎ROUSSELET Louis‎

‎L’Inde des Rajahs‎

‎Voyage dans l’Inde Centrale et dans les résidences de Bombay et du Bengale. Ouvrage à livraisons de la Revue Le Tour du monde d’Edouard CHARTON. Complet des 29 livraisons de 16 pages chacune, texte sur 2 colonnes avec une erreur au chapitre XXXIX indiqué XXIX, plus de 200 gravures sur bois dans le texte et à pleine page par les meilleurs artistes, A de BAR, Emile BAYARD, CATENACCI, A de NEUVILLE, PHILIPPOTEAUX, CLERGET, THEROND etc. d’après les photographies et les croquis de l’auteur. et six cartes dans le texte- Détail des livraisons : Tome XXII livraisons 561 562 563 564 565 Tome XXVIII livraisons 585 586 587 588 589 Tome XXIV livraisons : 609 610 611 612 613 Tome XXV livraison 635 636 637. Tome XXVI livraisons 669 670 671 672 673. Tome XXVII livraisons 682 683 684 685 686 687 et dernière(une pâle mouillure angle supérieur gauche) On joint une page de faux-titre et de titre semblables à celles de l’édition parue l’année suivante avec des variantes dans les gravures , une couverture de livraisons en papier mince bleu (11ème année livraison 561 ) Ces livraisons ne sont pas sorties de volumes reliés. Elles n’ont jamais été reliées. Ouvrage en édition pré-originale. Bon exemplaire, peu courant.‎

書籍販売業者の参照番号 : 9633

‎ROUSSET (Camille).‎

‎Histoire de Louvois et de son administration politique et militaire. Ouvrage auquel l'Académie française a décerné le grand prix Gobert, en 1862.‎

‎Paris, Didier & Cie, Libraires-éditeurs, 1864. 4 vol. In-8 de (4)-XI- 546 pp. ; (4)-579 pp. ; (4)-553 pp. et (4)-576 pp., demi chagrin rouge, dos à 4 nerfs, auteur, titre et tomason en lettres dorées, signet (reliure époque).‎

‎" François Michel Le Tellier, marquis de Louvois (1639-1691) fut l'un des artisans du rayonnement de la France de Louis XIV. Il cumula le secrétariat à la Guerre, la surintendance des Postes, des Bâtiments, des Arts et Manufactures et généralisa le port de l'uniforme, créa la milice, fonda des écoles d'artillerie et l'hôtel des Invalides. Contient la correspondance de Louvois avec Louis XIV, Turenne, Condé, Vauban."Nouvelle édition conforme à celle de 1862. Bel exemplaire parfaitement relié. Photos sur demande.‎

書籍販売業者の参照番号 : 25556

‎ROUX DE ROCHELLE‎

‎Etats-Unis d'Amérique‎

‎Firmin Didot Frères Paris 1837 In-8 ( 215x130 mm ) de 400 pages, demi basane verte, titre doré sur dos lisse orné d'un important fer romantique doré, de filets dorés et d'une guirlande dorée en queue.Une carte dépliante en frontispice.Ouvrage illustré de nombreuses gravures hors-texte sous serpente.‎

書籍販売業者の参照番号 : 856137

‎Roy Jean-René‎

‎L'astronomie et son histoire‎

‎Masson Album cartonné 1982 In-8 (18 x 23 cm.), album cartonné, couverture illustrée, 665 pages, illustrations noir et blanc in-texte ; plats un peu défraîchis, par ailleurs très bon état. Livraison a domicile (La Poste) ou en Mondial Relay sur simple demande.‎

書籍販売業者の参照番号 : za704

‎RSTED HANS CHRISTIAN. THE DEBUT OF HANS CHRISTIAN OERSTED THE BASIS FOR THE DISCOVERY OF ELECTRO MAGNETISM‎

‎Videnskaben om Naturens Almindelige Love. F�rste Bind alt som udkom. The Science of the General Laws of Nature. First volume all that was published.‎

‎Kj�benhavn Copenhagen Fr. Brummer 1809. Cont. hcalf. Richly gilt spine with gilt lettering. Corners bumped. XXX378 pp. and 11 engraved plates with many figs. Title-page and the first few leaves with a brownspot in inner margin. A few brownspots but internally clean. � Scarce first edition of Hans Christian Oersted's first printed book The Science of the General Laws of Nature. <br><br>Oersted is universally known for his discovery of the Electro-Magnetism in 1820. In this his first printed book Oersted proposes at least three theses that he were to follow for the rest of his life and which he made the foundation for his discovery of Electro-Magnetism: the crucial role that experiments and thereby empiricism play in the perception of nature; the fact that each individual phenomenon in nature in accordance with the philosophy of nature must be understood as a whole; and that the laws of nature are the same everywhere in the smallest and in the greatest parts of the universe. The sort of philosophy of nature that Oersted studies and develops is by him comprehended as a product of human striving towards with its reason to "include and penetrate the entire nature and to explain it in its full context" from "Science of the General Laws of Nature" - own translation which is why this philosophy is also the science of the general laws of nature that are the same everywhere. It thus not only includes the science of movement but also that of electricity magnetism light warmth and chemical connections such as they all follow directly from ordinary forces of nature and Oested's discovery in 1820 of the connection between magnetism and electricity must be seen in this connection.<br><br>Both H.C. Andersen and S�ren Kierkegaard admit to having been influenced by the writings of Oersted. "He was an enthusiastic follower of the "Naturphilosophie" school in Germany whose main object was the unification of physical forces thus producing a monistic theory of the universe. It was to further this purpose that Oersted sought in actual phenomena the electro-magnetic identity of which he had already convinced himself on metaphysical grounds" Percy H. Muir in Printing and The Mind of Man. unknown‎

書籍販売業者の参照番号 : 53678

‎RSTED OERSTED HC. THE DISCOVERY OF ELECTROMAGNETISM FIRST ANNOUNCEMENT IN FRENCH. H. C.‎

‎Experimenta circa Effectum etc. Exp�riences sur l'effet du conflict �lectrique sur l'aiguille animant�e.‎

‎Paris Crochard 1820. No wrappers. In "Annales". In "Annales de Chimie et de Physique Par MM. Gay-Lussac et Arago" Tome XIV Cahier 4 Titlepage to vol. 14 pp. 337-442. Entire issue offered. �rsted's paper: pp. 417-25. A few scattered brownspots. � First French translation and the first translation of Oersted's epoch-making announcement in his Latin pamphlet "Extperimenta circa effectum conflictus electrici in acun magneticam. Hafni� 1820" privately printed in a very small number and only distributed to colleques in Europe. This discovery and confirmation of the connection between 2 forces electricity and magnetism must be considered one of the happiest events in the history of science both with regard to scientific and practical results. - "From the moment that �rsted's discovery became known it created an enormous sensation. The results communicated were so astounding that they were received with a certain distrust but they were stated with such accuracy that it could hardly be permitted to entertain any doubts. In the course of a short time the treatise was translated into all the chief languages." Kirstine Meyer. - Dibner:61 - PMM: 282 - Horblitt: 3 b. - Sparrow: 152. unknown‎

書籍販売業者の参照番号 : 46026

‎RSTED OERSTED HC. THE DISCOVERY OF ELECTROMAGNETISM H. C.‎

‎Versuche �ber die Wirkung des electrischen Conflicts auf die Magnetnadel. Experimenta circa Effectum etc. Exp�riences sur l'effet du conflict �lectrique sur l'aiguille animant�e.‎

‎Leipzig Johann Ambrosius Barth 1820. Contemporary half calf. Raised bands gilt spine. Spine slightly rubbed. "Annalen der Physik. Hrsg. von Ludwig Wilhelm Gilbert" Bd. 66. Small stamps on verso of title-pages 2 and verso of plates. 12 426 pp. 1 folded table a. 3 engraved plates. The entire volume offered. Oersted's paper: pp. 295-304. Internally clean and fine. � First edition of the first German translation by Gilbert of Oersted's epoch-making announcement of his discovery of electromagnetism printed in the same year as the Latin original. The work originally appeared in Latin as "Experimenta circa effectum conflictus electrici in acun magneticam. Hafni� 1820"; this Latin pamphlet is impossibly scarce and only a few copies are known as it was privately printed in a very small number and was only distributed to colleagues in Europe. <br><br>This discovery and confirmation of the connection between 2 forces electricity and magnetism must be considered one of the happiest events in the history of science both with regard to scientific and practical results.<br><br>"From the moment that �rsted's discovery became known it created an enormous sensation. The results communicated were so astounding that they were received with a certain distrust but they were stated with such accuracy that it could hardly be permitted to entertain any doubts. In the course of a short time the treatise was translated into all the chief languages." Kirstine Meyer. <br><br>In a note Gilbert says that it is a word by word translation of Oersted's small Latin pamphlet "Eine fast w�rtliche Uebersetzung des einzeln gedruckten lateinischen de 21 Juli 1820 geschriebenen Viertel-Bogens de von Hrn. Oersted mehreren zugeschicht worden ist."<br><br>When Oersted's discovery became known to European physicists they became busy with testing Oersted's results; thus this volume of "Annalen" contains some important papers on electromagnetism in German: Gilbert: Untersuchungen �ber die Einwirkung des geschlossenen galvanisch-electrischen Kreises uaf die Magnetnadel. pp. 331-391; Biot & Savart: Von einer Abhandlung �ber die Magnetismus der Voltaischen S�ule The Law of Biot & Savart pp. 392-394 German extract; Yelin: Ueber den Zusammenhang der Electricit�t mit dem Magnetismus.mit einigen Zus�tzen von Gilbert.; Muncke: Einiges die Polarisierung des Lichtes und die Oersted'schen Versuche betreffend. The volume also contains first German editions of papers by Biot Gay-Lussac G.G. Schmidt Humphrey Davy etc.<br><br>Dibner:61 - PMM: 282 - Horblitt: 3 b. - Sparrow: 152. hardcover‎

書籍販売業者の参照番号 : 43416

‎RUDOLF EUCKEN‎

‎Le sens et la valeur de la vie.‎

‎Editions Rombaldi, La Guilde des Bibliophiles, Les Presses du Compagnonage, 1960, 219 pages, in 8 reliure éditeur cartonnée, insolée, état moyen, légèrement tachée, traces d'usure, couverture ornée d'une illustration de Picasso.‎

書籍販売業者の参照番号 : 7914

‎RUTHERFORD E. ERNEST. THE DISCOVERY OF THE ATOMIC NUCLEUS THE RUTHERFORD ATOMIC MODEL.‎

‎The Scattering of alpha and beta Particles by Matter and the Structure of the Atom.‎

‎London Taylor and Francis 1911. 8vo . In recent half cloth with cloth title-label with gilt lettering to front board. Extracted from "The London Edinburgh and Dublin Philosophical Magazine and Journal of Science" Sixth Series Vol. XXI. A fine and clean copy. Rutherford's paper: pp. 669-688. Withbound: Pp. 585-696. � First appearance of one of the most influential papers in physics in the 20th Century describing the discovery of the ATOMIC NUCLEUS and suggesting that the atom consists of a small central nucleus surrounded by electrons. This view of the atom is the one accepted today and it replaced the concept of the featureless indivisible spheres of Democritus which dominated atomistic thinking for twenty-three centuries. Rutherford's 'nuclear atom' was a few years later by Niels Bohr combined with the quantum theory of light to form the basis of his famous theory of the hydrogen atom.<br><br>Hans Geiger Rutherford's assistant in his work on alpha particles tells "One day Rutherford came into my room obviously in the best of moods and told me that now he knew what the atom looked like and what the strong scatterings signified." - On 7 March 1911 Rutherford presented his principal results to the Manchester Literary and Philosophical Society. The definitive paper came out in the May issue of "Philosophical Magazine" the paper offered here.<br><br>"After the first five or sic years of intense activity following the discovery of radioactivity there was a brief lull untill 1911 when a new series of fundamental discoveries was made. These began with the discoveries of the nucleus and of artificial atomic transmutations by Rutherford. By 1811 it was known that electrons entered into the constitution of atoms and Barkla had shown that each atom has approximately A/2 electrons where A is the atomis weight. J.J.Thomson had conceived of a model of an atom according to which the electrons were distributed inside a positively charged sphere. To verify this hypothesis Rutherford had the idea of bombarding matter using alpha-radiation of radioactive bodies and measuring the angles through which the rays were deflected as they passsed through matter. For the Thomson model of the atom the deflections should rarely be more than 1 or 2 degrees.However Rutherford's experiments showed that deflections of more than 90 degrees could occur particularly with heavy nuclei."Taton Edt. Science in the Twentieth Century p. 210. hardcover‎

書籍販売業者の参照番号 : 57198

‎RUTHERFORD ERNEST NIELS BOHR CG. DARWIN. THE DISCOVERY OF THE 'PROTON'. C. G.‎

‎The Structure of the Atom. Rutherford Darwin: Collision of 'alpha' Particles with Light Atoms. Bohr: On the Effect of Electric and Magnetic Fields on Spectral Lines‎

‎London 1914. No wrappers but stiched. All three papers contained in: "Philosophical Magazine" Sixth Series Vol. 27. No. 159. March 1914. The whole issue issue offered =no. 159: pp. 397-540 and 2 plates.<br>Rutherford's paper.pp. 488-498. - Darwin's paper: pp. 499-506. - Bohr's paper: pp. 506-523. All clean and fine. � First edition and first printing of all three papers. Rutherford in this paper for the first time identifies the hydrogen nucleus and called it the 'positive electron'. He later called it 'the proton' . In his definitive paper of 1911 he estimated the radius of the nucleus a hundred thousand times smaller than that of an atom. Darwin in his paper offered here gave a more precise measure.<br>In the first lines of the paper Rutherford outlines the content "The present paper and and the accompanying paper by Mr. C. Darwin the second paper offered here deal with certain points in connection with the "nucleus" theory of the atom which were purposely omitted in my first communication on that subject Phil. Mag. May 1911. A brief account is given of the later investigations which have been made to test the theory and of the deductions which can be drawn from them. At the same time a brief statement is given of recent observations on the passage of alpha particles through hydrogen which throw importent light on the dimensions of the nucleus." - Rutherford had studies alpha-particles intensely in the years before 1914 and proved quite conclusively that the individual particle was a helium atom with its electrons removed. The alpha particles were like the positive rays that had been discovered by Goldstein 1886 and now in 1914 the paper offered Rutherford suggested that the simplest positive rays must be those obtained from the hydrogen and that these must be the fundamentall positively-charged particle. He names it a 'positive electron'.<br>Darwin in the paper offered "concluded from the known data:"No force proportional to some power of the distance other than the inverse square can give the dependence the Rutherford scattering cross section on the initial velocity" and he then calculated the distance of closest alpha-particle-nucleus approach.<br><br>The paper by Niels Bohr relates to "The Stark effect". In 1913 appeared "an importent new discovery: when atomic hydrogen is exposed to a static electrical field its spectral lines split the amount of splitting being proportional to thefield strenght the linear Stark effect. After Rutherford read this news in "Nature" he at once wrote to Bohr:'I think it is rather up to you at the present time to write something on.electric effects.'" A. Pais. Bohrs paper on The Stark effect appeared in 1914 the paper offered here. - Rosenfeld. Niels Bohr' publications No. 10. unknown‎

書籍販売業者の参照番号 : 41545

‎S.DELCROIX‎

‎Bonjour parrain.‎

‎Editions des Remparts, années 60 environ, exemplaire de bibliothèque, 224 pages, in 8 broché, bon état général, papier légèrement jauni.‎

書籍販売業者の参照番号 : 9676

‎Sa Ayres de Portugal. Quarto centenario do descobrimento da India. Sociedade de Geografia de Lisboa‎

‎Frei Gonc�alo Velho 1899‎

‎2020. Paperback. New. Lang: - por Pages 726. Reprinted in 2020 with the help of original edition published long back 1899. This book is Printed in black & white sewing binding for longer life with Matt laminated multi-Colour Soft Cover HARDCOVER EDITION IS ALSO AVAILABLE Printed on high quality Paper re-sized as per Current standards professionally processed without changing its contents. As these are old books we processed each page manually and make them readable but in some cases some pages which are blur or missing or black spots. If it is multi volume set then it is only single volume if you wish to order a specific or all the volumes you may contact us. We expect that you will understand our compulsion in these books. We found this book important for the readers who want to know more about our old treasure so we brought it back to the shelves. Any type of Customisation is possible with extra charges. Hope you will like it and give your comments and suggestions. paperback‎

書籍販売業者の参照番号 : PB1111000258202

‎SABATES Fabien‎

‎La croisière noire Citroën (1924-1925). Collection : Aventures du XXe siècle.‎

‎Editions Eric Baschet, 1980. 22 x 30, 147 pp., très nombreuses illustrations et cartes, reliure d'édition pleine toile + jaquette, très bon état.‎

‎préface de Jacques Wolgensinger.‎

書籍販売業者の参照番号 : 90681

‎Sabin Joseph Sabin Joseph. A dictionary of books relating to America from its discovery to the present time‎

‎A list of the editions of the works of Louis Hennepin and Alonso i. e. Antonio de Herrera : extracted from A dictionary of books relating to America 1876 Hardcover‎

‎2020. Hardcover. New. Lang: - eng Pages 27. Reprinted in 2020 with the help of original edition published long back 1876. This book is Printed in black & white Hardcover sewing binding for longer life with Matt laminated multi-Colour Dust Cover Printed on high quality Paper re-sized as per Current standards professionally processed without changing its contents. As these are old books we processed each page manually and make them readable but in some cases some pages which are blur or missing or black spots. If it is multi volume set then it is only single volume if you wish to order a specific or all the volumes you may contact us. We expect that you will understand our compulsion in these books. We found this book important for the readers who want to know more about our old treasure so we brought it back to the shelves. Any type of Customisation is possible with extra charges. Hope you will like it and give your comments and suggestions. hardcover‎

書籍販売業者の参照番号 : 1111005689226

‎Sabine Edward Sir Ross John Sir. A voyage of discovery‎

‎Remarks on the account of the late Voyage of discovery to Baffin's Bay published by Captain J. Ross R.N. 1819 Leather Bound‎

‎2019. Leather Bound. New. Leather Binding on Spine and Corners with Golden Leaf Printing on round Spine. Reprinted in 2019 with the help of original edition published long back 1819. This book is printed in black & white sewing binding for longer life Printed on high quality Paper re-sized as per Current standards professionally processed without changing its contents. As these are old books we processed each page manually and make them readable but in some cases some pages which are blur or missing or black spots. If it is multi volume set then it is only single volume if you wish to order a specific or all the volumes you may contact us. We expect that you will understand our compulsion in these books. We found this book important for the readers who want to know more about our old treasure so we brought it back to the shelves. Hope you will like it and give your comments and suggestions. Lang: - eng Pages 47. EXTRA 10 DAYS APART FROM THE NORMAL SHIPPING PERIOD WILL BE REQUIRED FOR LEATHER BOUND BOOKS. FOLIO EDITION IS ALSO AVAILABLE. hardcover‎

書籍販売業者の参照番号 : LB1111005704753

‎Sabine Edward Sir Ross John Sir. A voyage of discovery‎

‎Remarks on the account of the late Voyage of discovery to Baffin's Bay published by Captain J. Ross R.N. 1819‎

‎2020. Paperback. New. Lang: - eng Pages 47. Reprinted in 2020 with the help of original edition published long back 1819. This book is Printed in black & white sewing binding for longer life with Matt laminated multi-Colour Soft Cover HARDCOVER EDITION IS ALSO AVAILABLE Printed on high quality Paper re-sized as per Current standards professionally processed without changing its contents. As these are old books we processed each page manually and make them readable but in some cases some pages which are blur or missing or black spots. If it is multi volume set then it is only single volume if you wish to order a specific or all the volumes you may contact us. We expect that you will understand our compulsion in these books. We found this book important for the readers who want to know more about our old treasure so we brought it back to the shelves. Any type of Customisation is possible with extra charges. Hope you will like it and give your comments and suggestions. paperback‎

書籍販売業者の参照番号 : PB1111005704753