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1963Best.-Nr. C204741London: B. I. C. C. 1963. Hardcover Hardcover. Very Good. Quarto. Original red cloth. 224pp typed manuscript style printed recto only. Many illustrations tables figures charts and folding plans. Cloth with a couple of marks otherwise near fine. B. I. C. C., hardcover
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Best.-Nr. Z1-Q-035-02916The Electricity Council. Used - Good. Ships from UK in 48 hours or less usually same day. Your purchase helps support Sri Lankan Children's Charity 'The Rainbow Centre'. Ex-library so some stamps and wear but in good overall condition. 100% money back guarantee. We are a world class secondhand bookstore based in Hertfordshire United Kingdom and specialize in high quality textbooks across an enormous variety of subjects. We aim to provide a vast range of textbooks rare and collectible books at a great price. Our donations to The Rainbow Centre have helped provide an education and a safe haven to hundreds of children who live in appalling conditions. We provide a 100% money back guarantee and are dedicated to providing our customers with the highest standards of service in the bookselling industry. The Electricity Council unknown
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1834Best.-Nr. 42332London Richard Taylor 1834 4to. No wrappers as extracted from "Philosophical Transactions" 1834 - Part II. Pp. 531-550 and 3 lithogrpahed plates. Clean and fine. The paper investigates the electrical organs of this electrical fish. unknown
1802Best.-Nr. 43637Halle Rengerschen Buchhandlung 1802-1803. Without wrappers as published in "Annalen der Physik. Herausgegeben von Ludwig Wilhelm Gilbert" Bd. 10 Viertes Stück. The entire issue offered = Stück 4. Titlepage to vol. 10. Pp. 389-512 a. 1 engraved plate. Extract from Ergänzungsheft zum Jahre 1802. =Zweite Abhandlung. Volta's papers: pp. 421-449 a. pp. 497-520. Very light browning to 2. Abhandlung. First appearance in German of Volta's importent paper in which he describes the electrical forces that acts between the metal-plates in the Voltaic Pile. The German publication was printed in the same year as the Italian original "Sull' identita del Fluido Elettrico col Fluide Galvanico" 1802."A long memoir by Volta in two parts.reports that by measuring the electrometer deflections with different pairs of metals he found that the forces which drive the electric fluid.from the first metal to the second are: silver/copper 1 copper/iron 2 iron/thin 3 lead/tin 1 lead/zinc 5. Then the force for silver/zinc in immidiate contact is 12 12315 copper/tin 5 = 32 iron/zinc 9 513 etc. Thus 'the force or impulsion with which two metals act on the electric fluid is equal to the sum of the forces of the series of metals which stands between them and.the electric force is the same as that which arises when the two extreme metals have no effect on the force of the latter'. This is the first statement of what Maxwell called 'Volta'slaw of contact electricity'."Partington IV p.15. unknown
1851Best.-Nr. 43324Leipzig Johann Ambrosius Barth 1851. Without wrappers as issued in "Annalen der Physik und Chemie. Hrsg.von Poggendorff" Bd. 83 Viertes Stück.= Heft No. 8 of 1851. The entire issue offered Heft 2 of vol. 83 with titlepage to vol. 83. Pp.469-600 a. 2 engraved plates. Helmholtz's paper: pp. 505-540. Clean and fine. First appearance of this paper in which Helmholtz for the first time measures and gives the mathematical formula for the duration of induced electrical currents and thus distinguished with mathematical accuracy from those due to nerve-action."In the offered paper he begins by stating a mathematical law which he had verified by a long and difficult series of experiments. By means of this law F. neumann was enabled to solve the problem he had previously laid aside as to the distribution of current in a copper disk rotating below the two poles of a magnet.After Helmholtz had extended this exponiential law mathematically to divided circuits he tested it experimentally by means of a new type of galvanic contact-key which madeit possible to vary the interval between the opening and closing of any current as required."Koenigsberger "Hermann von helmholtz" pp. 79-80. unknown