assis andre koch torres (23 Ergebnisse)

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Paperback. Zustand: New. New; Este livro analisa a força elétrica entre uma carga e um circuito conduzindo uma corrente constante quando a carga e o circuito estão em repouso entre si. Apresenta experiências e cálculos analíticos, que mostram a existência dessa força, contrariando afirmações de diversos cientistas. A obra também inclui cálculos do potencial e do campo elétrico tanto dentro como fora dos condutores resistivos conduzindo correntes constantes, assim como a distribuição das cargas ao longo da superfície dos condutores. São essas cargas superficiais que produzem a força e o campo elétrico não apenas no interior dos fios com corrente, mas também fora deles. Os tópicos são apresentados de forma didática e clara, e incluem uma contextualização histórica de diversos assuntos. O livro contém ainda dois apêndices que discutem os trabalhos pioneiros de Wilhelm Weber e de Gustav Kirchoff sobre esse tema, além de uma ampla bibliografia com centenas de citações modernas.; Height: 0.7086614166 Inches, Length: 10.5511810916 Inches, Weight: 1.521189; 256 pages.

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Taschenbuch. Zustand: Neu. Neuware -Weber's Planetary Model of the AtomBekannt ist Wilhelm Weber zusammen mit Karl Friedrich Gauß für die Schaffung der absoluten Maßsysteme, Grundlage für die heutigen SI-Einheiten.Webers Atommodell, entstanden um 1860 und in der physikhistorischen Literatur kaum bekannt, wird hier präsentiert von Andre Koch Torres Assis, Professor an der brasilianischen Universität Campinas, und vom Institut für Geschichte der Naturwissenschaften der Universität Hamburg, von Privatdozent Dr. Karl Heinrich Wiederkehr, Studiendirektor im Ruhestand, und von Prof. Dr. Gudrun Wolfschmidt.Mit dem Triumph der Feldphysik und Nahwirkungstheorie (Faraday, Maxwell, Heinrich Hertz) legte man allzu schnell die ältere Elektrodynamik als überholte Fernwirkungstheorie ad acta. Erst Ende des 19. Jahrhunderts setzte sich der Gedanke einer substantiellen atomistischen Struktur der Elektrizität durch (H.A. Lorentz, J.J. Thomson). Auf der Grundlage der Ampereschen Hypothese der Molekularströme kreisen in Webers Atommodell elektrische Teilchen mit elektrischer Ladung und sehr kleiner Masse um ein ponderables Atom oder Molekül, das ebenfalls elektrische Ladung trägt. Diese kreisenden Teilchen erregen nach Weber im Äther Lichtwellen von gleicher Frequenz. Die Ähnlichkeit mit dem Bohrschen Atommodell ¿ sieht man von den Quantenbedingungen und Quantensprüngen ab ¿ ist verblüffend. Energetische Betrachtungen bei der Ausstrahlung der Lichtwellen machte Weber allerdings noch nicht. Bei der Begründung der Metallelektronik ging Weber ebenfalls von den Ampereschen Molekularströmen aus. Wird an dem Leiter Spannung angelegt, erfolgen Wurfbewegungen elektrischer Teilchen, die so von der Wirkungssphäre eines ponderablen Atoms in die Wirkungssphäre eines benachbarten Atoms gelangen. Auf diese Ideen aufbauend schufen dann Riecke, Drude und H.A. Lorentz die klassische Elektronentheorie der Metalle. Sommerfeld nahm unter Benutzung der inzwischen entwickelten Quantentheorie diese Idee wieder auf und die Festkörperphysik begann.Books on Demand GmbH, Überseering 33, 22297 Hamburg 184 pp. Englisch.

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Taschenbuch. Zustand: Neu. Weber's Planetary Model of the Atom | Andre Koch Torres Assis (u. a.) | Taschenbuch | 184 S. | Englisch | 2011 | tredition | EAN 9783842402416 | Verantwortliche Person für die EU: tredition GmbH, Heinz-Beusen-Stieg 5, 22926 Ahrensburg, info[at]tredition[dot]de | Anbieter: preigu.

Paperback. Zustand: Brand New. 478 pages. Portuguese language. 11.00x8.50x1.08 inches. In Stock.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - 'Great progress has been made in electrical science, chiefly in Germany, by cultivators of the theory of action at a distance. The valuable electrical measurements of W. Weber are interpreted by him according to this theory, and the electromagnetic speculation which was originated by Gauss, and carried on by Weber, Riemann, F. and C. Neumann, Lorenz, etc. , is founded on the theory of action at a distance, but depending either directly on the relative velocity of the particles, or on the gradual propagation of something, whether potential or force, from the one particle to the other. The great success which these eminent men have attained in the application of mathematics to electrical phenomena, gives, as is natural, additional weight to their theoretical speculations, so that those who, as students of electricity, turn to them as the greatest authorities in mathematical electricity, would probably imbibe, along with their mathematical methods, their physical hypothesis. These physical hypotheses, however, are entirely alien from the way of looking at things which I adopt, and one object which I have in view is that some of those who wish to study electricity may, by reading this treatise, come to see that there is another way of treating the subject, which is no less fitted to explain the phenomena, and which, though in some parts it may appear less definite, corresponds, as I think, more faithfuHy with our actual knowledge, both in what it affirms and in what it leaves undecided.

Taschenbuch. Zustand: Neu. Neuware -'Great progress has been made in electrical science, chiefly in Germany, by cultivators of the theory of action at a distance. The valuable electrical measurements of W. Weber are interpreted by him according to this theory, and the electromagnetic speculation which was originated by Gauss, and carried on by Weber, Riemann, F. and C. Neumann, Lorenz, etc. , is founded on the theory of action at a distance, but depending either directly on the relative velocity of the particles, or on the gradual propagation of something, whether potential or force, from the one particle to the other. The great success which these eminent men have attained in the application of mathematics to electrical phenomena, gives, as is natural, additional weight to their theoretical speculations, so that those who, as students of electricity, turn to them as the greatest authorities in mathematical electricity, would probably imbibe, along with their mathematical methods, their physical hypothesis. These physical hypotheses, however, are entirely alien from the way of looking at things which I adopt, and one object which I have in view is that some of those who wish to study electricity may, by reading this treatise, come to see that there is another way of treating the subject, which is no less fitted to explain the phenomena, and which, though in some parts it may appear less definite, corresponds, as I think, more faithfuHy with our actual knowledge, both in what it affirms and in what it leaves undecided.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 292 pp. Englisch.

Buch. Zustand: Neu. Neuware -'Great progress has been made in electrical science, chiefly in Germany, by cultivators of the theory of action at a distance. The valuable electrical measurements of W. Weber are interpreted by him according to this theory, and the electromagnetic speculation which was originated by Gauss, and carried on by Weber, Riemann, F. and C. Neumann, Lorenz, etc. , is founded on the theory of action at a distance, but depending either directly on the relative velocity of the particles, or on the gradual propagation of something, whether potential or force, from the one particle to the other. The great success which these eminent men have attained in the application of mathematics to electrical phenomena, gives, as is natural, additional weight to their theoretical speculations, so that those who, as students of electricity, turn to them as the greatest authorities in mathematical electricity, would probably imbibe, along with their mathematical methods, their physical hypothesis. These physical hypotheses, however, are entirely alien from the way of looking at things which I adopt, and one object which I have in view is that some of those who wish to study electricity may, by reading this treatise, come to see that there is another way of treating the subject, which is no less fitted to explain the phenomena, and which, though in some parts it may appear less definite, corresponds, as I think, more faithfuHy with our actual knowledge, both in what it affirms and in what it leaves undecided.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 292 pp. Englisch.

Buch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - 'Great progress has been made in electrical science, chiefly in Germany, by cultivators of the theory of action at a distance. The valuable electrical measurements of W. Weber are interpreted by him according to this theory, and the electromagnetic speculation which was originated by Gauss, and carried on by Weber, Riemann, F. and C. Neumann, Lorenz, etc. , is founded on the theory of action at a distance, but depending either directly on the relative velocity of the particles, or on the gradual propagation of something, whether potential or force, from the one particle to the other. The great success which these eminent men have attained in the application of mathematics to electrical phenomena, gives, as is natural, additional weight to their theoretical speculations, so that those who, as students of electricity, turn to them as the greatest authorities in mathematical electricity, would probably imbibe, along with their mathematical methods, their physical hypothesis. These physical hypotheses, however, are entirely alien from the way of looking at things which I adopt, and one object which I have in view is that some of those who wish to study electricity may, by reading this treatise, come to see that there is another way of treating the subject, which is no less fitted to explain the phenomena, and which, though in some parts it may appear less definite, corresponds, as I think, more faithfuHy with our actual knowledge, both in what it affirms and in what it leaves undecided.

Softcover. Zustand: Gut. Broschur, 542 Seiten,