FARADAY, MICHAEL. - THE DISCOVERY OF ELECTRO-MAGNETIC INDUCTION (PMM 308) - GERMAN VERSION.

Experimental-Untersuchungen über Elektricität. (Frei übersetzt aus dem Philosop. Transact. f. 1832). (Erste-) Zweite Reihe. (§ I-V). (I. Vertheilung elektrischer Ströme. II. Electricitätserregung durc Magnetismus. III. Neuer elektrischer Zustand der Materie. IV. Erklärung der von Hrn. Arago beobachteten magnetischen Erscheinungen. V. Magneto-elektrische Vertheilung durch Erdmagnetismus). Numb. 1-139 u. 140-264.

Leipzig, Johann Ambrosius Barth, 1832. Contemp. hcalf., raised bands, gilt spine. Light wear along edges. In "Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff", Band 25. (Entire volume offered). VIII,648 pp. and 6 folded engraved plates. Small stamps on verso of titlepage and plates. Faraday's papers: pp. 91-142 a. pp. 142-186. with 3 folded engraved plates. Clean and fine.

First German editions of the 2 first memoirs of Faradays groundbreaking researches on electricity, constituting the first 2 papers of his "Experimental Researches in Electricity", and containing his fundamental discovery of electromagnetic induction, THE FOUNDATION OF NEARLY ALL THE ELECTRICITY IN USE TODAY. In 1820 Oersted had generated magnetism from electricity, Faraday here finds the opposite effect, generating electricity by magnetism. He also described the first electrical generator (second paper). THESE PAPERS ARE SOME OF THE GREAT CLASSICS OF CHEMISTRY AND PHYSICS.

"Faraday demonstrated this theory involving the lines of force....by inserting a magnet into a coil of wire attached to a galvanometer. While the magnet was being inserted or removd, current flowed through the wire. If the magnet was held stationary and the coil moved over it one way or the other, there was current in the wire. In either case the magnetic lines of force about the magnet were cut by the wire.If the magnet and coil were both held motionless, whether the magnet was within the coil or not, there was no current...Faraday hd thus discovered electricalinduction...It was to lead to great things, but this was not apparent."(Asimov).

"Although his discovery of the electric motor and the dynamo was almost entirely identical to his theoretical discoveries, it laid the foundation of the modern electrical industry - electric light and power, teælephony, wireless telegraphy, televison etc. - by providing for the production of continous mechanical motion from an electrical source, and vice versa." (PMM, 308).

Horblit, 29 - Milestones, 62. - Dibner, 64. - PMM, 308.

The volume contains further notable papers. Elie de Beaumont "Zweiter geologischer Brief...an A.v. Humboldt über die relative Alter der Gebirgszüge", pp. 1-58 a. 2 plates (one handcoloured), papers by Döbereiner, E. Lenz, Moser, Mitscherlich, de Saussure, J. Dumas, F.E. Neumann, Gay-Lussac, Johannes Müller "Beobachtungen zur Analyse der Lymphe, des Bluts und des Chylus", pp. 513-590.

Order-nr.: 44146