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‎"OHM, G.S. (GEORG SIMON).‎

Reference : 36757

(1817)

‎Grundlinien zu einer zweckmässigen Behandlung der Geometrie als höheren Bildungsmittels an verbereitenden Lehranstalten. Mit zwei Kupfertafeln. - [OHM'S FIRST WORK]‎

‎Erlangen, J.J. Palm und Ernst Enke, 1817. 8vo. Nice cont. marbled cardboardbinding w. gilt title label and single gilt lines to spine. Corners and edges of boards bumped and some minor wear to capitals, otherwise very nice and clean. Also internally in excellent condition, w. almost no brownspotting. A few leaves w. marginal markings, all in weak pencil. Printed on good paper. XXXII, 224, (2, -errata) pp, 2 folded plates.‎


‎The very rare first edition of Ohm's first work, which actually laid the foundation for his career and gave him the opportunity of working as a scientist. The work was printed eight years before his first scientific paper, (""Vorläufige Anzeige des Gesetzes, nach welchem Metalle de Contakt-elektrizität leiten"", 1825, which contained for the first time the original research that was to immortalize his name). The German physicist Georg Simon Ohm (1789 -1854), who later became famous for having established the fundamental relationship between voltage, current, and resistance, and thereby founding electrical circuit analysis (all based on what has ever since Ohm been known as ""Ohm's Law""), was solidly educated in mathematics, physics, chemistry and philosophy by his very skilled autodidact father. From 1800 to 1805 Ohm attended the Erlangen Gymnasium, after which he attended the University of Erlangen for three years, until his father withdrew him and placed him in exile in Switzerland, because he was so dissatisfied with him wasting his scientific abilities"" -Georg Ohm was primarily interested in dancing, billiards and ice skating. He then became a mathematics teacher in Gottstadt bei Nydau, and in 1809 he went to Neuchâtel for two years as a private teacher, although he would have preferred to follow Karl Christian von Langensdorf to Heidelberg to restart his mathematical studies. Langendorf, however, advised Ohm to study mathematics on his own and to read the works of Euler, Laplace and Lacroix, which he did. In 1811 Ohm returned to the University of Erlangen, where he received his PhD. He now taught as a Privatdozent for three semesters, but he could not advance and made almost no money, so he was forced to seek employment from the Bavarian government. The best position that he was offered was that of a teacher of mathematics and physics at a poor quality, low-prestige Realschule in Bamberg, where he stayed with great dissatisfaction for three years, until the school got closed down in March 1816. He was now assigned to teach a section of mathematics at another overcrowded and ill reputed school in Bamberg. During these years, Georg Ohm felt very unhappy with his position and realized that he had to do something to improve his merits in order to get out of Bamberg and have hopes to find a better post. And thus, he undertook the writing of his first work, the elementary geometry text, which was to prove his true abilities. Ohm sent the manuscript to King Wilhelm III of Prussia, and in 1817 he was offered the position of Oberlehrer of mathematics and physics at the recently reformed Jesuit Gymnasium at Cologne. This was a very good school, which was based on the ideals of proper scientific education and enthusiasm for learning and teaching, and it was this position that stimulated Ohm to seriously concern himself with physics which he had never done before. The physics lab was very well equipped , and Ohm could now devote himself to experimenting on physics.""Ohm's fist work was an elementary geometry text, ""Grundlinien..."" which embodied his ideals on the role of mathematics in education. The student, he believed, should learn mathematics as if it were the free product of his own mind, not as a finished product imposed from without. Ideally, by fostering the conviction that the highest life is that devoted to pure knowledge, education should create a self-respect capable of withstanding all vicissitudes in one's external circumstances. One detects in these sentiments the reflection not only of his own early education but also of the years of isolation in Switzerland and of personal and intellectual deprivation of Bamberg. The resulting inwardness of Ohm's character and the highly intellectualized nature of his ideals of personal worth were an essential aspect of the man who would bring the abstractness of mathematics into the hiterto physical and chemical domain of galvanic electricity."" (D.S.B., X, p. 187).‎

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‎"OHM, G.S. (GEORG SIMON). - FIRST EXPLICIT STATEMENT OF OHM'S LAW.‎

Reference : 43632

(1826)

‎Versuch über einer Theorie der durch galvanische Kräfte hervorgebrachten elektroskopischen Erscheinungen. (+) (Beschluss) (+) Ein Nachtrag zu dem vorstehenden Aufsatz. (3 Theile).‎

‎Leipzig, Johann Ambrosius Barth, 1826. Without wrappers as issued in ""Annalen der Physik und Chemie. Hrsg.von Poggendorff"", Bd. 6 + 7, Viertes u. Fünftes Stück. (Entire issues 4 and 5 present). Titlepage to vol. 6. Pp. 369-514 a. 1 engraved plate, Titlepage to vol. 7. Pp. 1-136 a. 1 engreved plate. Ohms paper: pp. 459-469, pp. 45-54 a. pp. 117-118.. Clean and fine.‎


‎First appearence of a major paper in 19th century electrical theory, breaking new ground in associating an electric tension with both open and closed galvanic circuits, unifying the theory of Galvanic electricity, and containing Ohm's Law in the simpler and last form.""Ohm's second major paper of 1826 announced the beginnings of a comprehensive theory of galvanic electricity based, he said, on the fact that the contact of heterogenous bodies produced and maintained a constant electric tension (Spannung). He deferred the systematic exposition of thsi theory to a later work, however, and limited himself to stating without derivation the two eqautions that constituted its heart: X=kw(a/l) and u-c = +/- (x/l)a,whereX is the strenght of the electric current in a conductor of lenght l, cross section w, and conductibility (Leitungsvermögen) k produced by a difference in electric tension a at its end points. By means of the first equation one can, ...reduce the actual lenght of a wire of whatever cross section and conductibility to the equivalent lenght of one of the wire chosen arbitrarily as a standard. Letting l now be this equivalent lenght - called the reduced lenght (reducirte Länge) of the conductor - Ohm WROTE HIS FIRST LAW IN THE SIMPLER FORM X=a/l, THE EXPRESSION WHICH HAS BECOME KNOWN AS OHM'S LAW.""(DSB X, pp. 188-89).‎

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‎"OHM, G.S. (GEORG SIMON).‎

Reference : 42879

(1829)

‎Experimentale Beiträge zu einer vollständigen Kenntniss des elektromagnetischen Multiplicators. (+) Nachschreiben von J.S.C. Schweigger‎

‎Halle, Eduard Anton, 1829. Contemp. hcalf. Spine gilt. In: ""Jahrbuch der Chemie und Physik für 1829. Hrsg. von W. Schweigger-Seidel"" Bd. I.(Journal f. Chemie u. Physik..LV.Band und = Jahrbuch der Chemie u. Physik..XXV. Bd.). XXIV,480,(19 - Plan und vorläufige Statuten des pharmaceutischen Instituts zu Halle) pp., 3 engraved plates. Some scattered brownspots. Entire volume offered. Ohm's paper: pp. 1-64 + Beiträge pp. 64-74.‎


‎First printing. Ohm continues in this major paper with experiments on the ""Galvanische Kette"" (Ohm's Law). The offered volume having many other importent papers in chemistry.‎

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‎"OHM, G.S. (GEORG SIMON).‎

Reference : 45450

(1831)

‎I. Versuche über den elektrischen Zustand der geschlossenen einfachen galvanischen Kette und daran geknüpfte Beleuchtung einiger dunkeler Stellen in der Lehre vom Galvanismus.- II. An Thatsachen fortgeführte Nachweisung des Zusammenhangs, in welchem d...‎

‎Halle, Anton und Gelbcke, 1831-32. 2 contemp. hcalf. Gilt spines. Slightly rubbed. In: ""Neues Jahrbuch er Chemie und Physik. Herausgegeben von W. Schweigger-Seidel"", Bd. 3 und 4. XVIII,488 pp. a. 1 engr.plate + XVIII,468 pp. a. 1 engr. plate. (Entire volumes offered). Ohm's papers: pp. 1-26, 159-189, 384-436 (1831) + pp. 20-37, 138-158, 257-283 (1832).‎


‎First appeareance of two importent papers in the history of electricity in which Ohm further investigates the consequences of his own law ""Ohms Law"" which he discovered in 1827, comparing hydroelectric currents with other types of electric currents.‎

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‎"OHM, G.S. (GEORG SIMON). - INTRODUCING ""GEGENSPANNUNG""‎

Reference : 45451

(1830)

‎Versuche zu einer nähern Bestimmung der Natur unipolarer Leiter. (1-) 2.‎

‎Halle, Anton und Gelbcke, 1830. 2 contemp. hcalf. Gilt spines. Slightly rubbed. In: ""Neues Jahrbuch er Chemie und Physik. Herausgegeben von W. Schweigger-Seidel"", Bd. II und III. XVI,496 pp. a. 5 folded engr.plates. + XVIII,502 pp. a. 5 folded engr. plates. Ohm's paper: pp. 385-435 (Bd. II) + pp. 32-59 (Bd. III).‎


‎First appearance of this importent paper in which Ohm for the first time shows that unipolarity is a kind of polarization which he calls ""Gegenspannung""‎

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‎"OHM, G.S. (GEORG SIMON).‎

Reference : 45452

(1830)

‎Gehorcht die hydroëlektrische Kette den von der Theorie ihr vorgeschriebenen Gesetzen, oder nicht ?‎

‎Halle, Anton und Gelbcke, 1830. Contemp. hcalf. Gilt spines. Slightly rubbed. In: ""Neues Jahrbuch er Chemie und Physik. Herausgegeben von W. Schweigger-Seidel"", Bd. I. XVIII,494 pp. a. 3 folded engraved plates. Ohm's paper: pp. 393-429.‎


‎First appearance of Ohm's investigations on the hydroelectric electric chain theory.‎

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‎Ohm (Dr. Georg Simon)‎

Reference : 101596

(1969)

‎Die galvanische Kette mathematisch bearbeitet von Dr. G.S. Ohm (Reprint en fac-similé, impression anastaltique de l'édition de Berlin, 1827 chez T.H. Riemann - Theorie der galvanischen Elektrizitat - Le circuit galvanique étudié mathématiquement ou loi d'Ohm - Galvanic Circuit, EO reprint)‎

‎Culture et Civilisation (Riemann) Malicorne sur Sarthe, 72, Pays de la Loire, France 1969 Book condition, Etat : Très bon hardcover, editor's full simili-leather brown binding, red title-piece In-8 1 vol. - 249 pages‎


‎1 plate with 3 figures (complete) reprint en fac-similé de 1969 de l'édition allemande de 1827 Contents, Chapitres : Vorwort, iv, Text, 245 Zeiten - Einleitung - Die galvanische Kette - Anhang : Ueber die chemische Kraft der galvanischen Kette - Georg Simon Ohm, né le 16 mars 1789 à Erlangen est mort à 65 ans le 6 juillet 1854 à Munich, est un physicien allemand ayant étudié à l'université d'Erlangen. Professeur d'université, Ohm a commencé ses travaux de recherche par une étude sur la cellule électrochimique récemment inventée par Alessandro Volta. En utilisant du matériel de sa propre invention, Ohm a découvert l'existence d'une relation de proportionnalité directe entre la différence de potentiel appliquée aux bornes d'un conducteur et le courant électrique qui le traverse, ce qu'on appelle maintenant la loi d'Ohm. Ces résultats expérimentaux lui ont permis de déterminer les relations fondamentales entre courant, tension et résistance électrique, ce qui constitue le début de l'analyse des circuits électriques. L'ohm, unité de mesure de résistance électrique, est nommé en son honneur. - Ce qui est actuellement connu sous le nom de loi d'Ohm est apparu dans le livre Die galvanische Kette, mathematisch bearbeitet (« Le circuit galvanique étudié mathématiquement ») (1827) dans lequel il fournit une théorie complète de l'électricité. Le livre commence par les bases mathématiques nécessaires à la compréhension du reste du travail. Ohm présente sa théorie comme reposant sur des actions de contact, par opposition au concept d'action à distance. Il pensait que la propagation de l'électricité se réalisait entre « particules contiguës » qui est le terme qu'il employait lui-même. Le livre repose sur cette idée, et notamment sur l'illustration des différences d'approches scientifiques par rapport aux travaux de Fourier et Navier. (source : Wikipedia) near fine copy, no marking, printed on a nice and quality paper, with the plate‎

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‎OHM (Georg Simon) et DU MONCEL (Théodose Achille Louis )‎

Reference : 62421

(1860)

‎Théorie mathématique des courants électriques [ET] Études des lois des courants électriques [ET] Notice sur l'appareil d'induction électrique de Ruhmorff‎

‎Paris, L. Hachette & Mallet-Bachelier, 1860 et 1859, in-8, [4]-202-[6]-X-201-[8]-X-[2]-400 pages, demi-basane fauve à coins postérieure, dos à 5 nerfs, Intéressant regroupement de trois oeuvres majeures dans l'histoire des théories sur l'électricité : la première édition française des lois d'Ohm, le texte le plus important de Du Moncel sur l'application pratique des lois électriques, et une quatrième édition de son introduction à la bobine de Ruhmkorff, un générateur électrique qui révolutionna les expériences électriques au milieu du XIXe siècle. En 1827, Georg Simon Ohm (1789-1854), dans Die galvanishe Kette, mathematisch bearbeitet établit les lois fondamentales du courant électrique : loi de la longueur, loi de la section et loi des courants dérivés, aujourd'hui plus généralement connue sous nom de loi d'Ohm. L'édition française, publiée 23 ans après l'édition originale allemande fut donnée par Jean-Mothée Gaugain. Le premier texte de Du Moncel, inventeur prolifique d'appareils électriques et un des premiers et meilleurs vulgarisateurs français sur le sujet, débute par une exposition des lois d'Ohm. Son second texte, ici en quatrième édition (la première avait paru en 1855) constitue, à l'époque, une étude particulièrement précoce sur la bobine que Ruhmkorff inventa en 1851. L'ouvrage est richement illustré. Bon exemplaire de ce recueil historique intéressant, portant sur le premier contreplat, l'ex-libris de James Boyd Gilmore, et le cachet, annulé, de l'Institut Catholique de Paris. Couverture rigide‎


‎Bon [4]-202-[6]-X-201-[8]-X-[2]-40‎

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‎OHM, GEORG SIMON. - THE PRELIMINARY ANNOUNCEMENT OF OHM'S LAW.‎

Reference : 43090

(1825)

‎Vorläufige Anzeige des Gesetzes, nach welchem Metalle die Contaktelectricität leiten"‎

‎Leipzig, Johann Ambrosius Barth, 1825. Contemp. hcalf. 5 raised bands, gilt spine and gilt lettering to spine. A few scratches to spine. Small stamp on verso and on titlepage. A tear to right margin of titlepage repaired. In: ""Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff"", Poggendorff Bd. 4. (10),476 pp., 4 large folded tables, 6 engraved plates, some folding. Small stamp on verso of plates. Ohm's paper: pp.79-88. Internally fine and clean.‎


‎First appearance of a paper of outmost importence in the history of electricity, - it is Ohm's first scientific paper, and it contains the report on the different original experiments (sending a current through a variety of test wires) that was the foundation for his famous law, Ohm's Law. The paper contains the original research material that was to immortalize his name, for the mathematical formulation of the law two years later in the well-known work ""Die galvanische Kette, mathematisch bearbeitet"" (1827). - This paper was at the same time published in Schweiggers Journal.""Ohm's first scientific paper was ""Vorläufige Anzeige des Gesetzes..."" (the paper offered). In it he sought a functional relationship between the decrease in the electromagnetic force excerted by a current-carrying wire and the lenght of the wire...Fromthe zinc and copper poles of a voltaic pile he ran two wires, A and B, the free ends of which terminated in small mercury-filled cups, M and N"" between M and another cup, O, he ran a third wire, C. Together A,B, and C formed what he called the ""invariable conductor"", to distinguish it from one of the seven wires of different lenghts that, when placed in a circuit between O and N, constituted the ""variable conductor"". Among the latter was one ""veru thick"" wire, four inches long, and six thinner ones, 0.3 line (.025"") in diameter, ranging in lenght from one foot to seventy-five feet. Finally, over wire C hung the magnetic needle of a Coulomb torsion balance, which served to measure the electromagnetic force exerted when one of the variable conductors completed the circuit....(He then found that) the loss in force was equal to the difference between the normal force and the lesser force occasioned by one of the other wires, divided by the normal force. Tabulating these value against the lenghts of the wires, he found that his data were well represented by the formula v=0.41 log (1+x), where v is the loss in force and x is the lenght of the wire in feet....""(DSB X, p.187). - This expression is the preliminary formula for his famous relations between voltage, amperage and resistance, R=V/I.Parkinson ""Breakthrough"" 1825 P. - Ronald's Library p. 376.The volume contains other importent papers in the history of chemistry and physics, Berzelius, F. Wöhler, F.E. Neumann, Heinrich Rose, Chr. Hansteen, Fresnel etc.‎

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