(Paris, Bachelier" Genève, Pélisserie, 1915.) 4to. No wrappers. In: ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome 161, No. 3 & No. 15 (Entires issues offered). Small stamp to top right corner of each issue. Pp. 45-60" Pp. 425-448. (Guye & Lavanchy's paper: Pp. 52-55" Pp. 447-8).
First appearance of Guye and Lavanchy's famous experimental confirmation the Lorentz-Einstein formula which eventually led to a full understanding and acceptance of Einstein's theory of relativity. Einstein himself, though known as not taking much interest in the experimental support of his conceptions, wrote eulogistic letters to Guye after the present paper had been published. In February 1906 Walter Kaufmann made public his conclusion on the experiments he had been performing since 1901 on the electric and magnetic deflections of beta-rays. He claimed that Lorentz' theory of the electron, and thus ""the possibility of founding physics on the principle of relative motion"", had to be rejected. Ten years had to pass until Guye and Lavanchy confirmed the Lorentz theory and thereby proving Kaufmann's measuring equipment for imprecise. In 1915 Guye and Lavanchy measured the deflection of cathode rays at 0.25c-0.5c. They used a tube with a cathode and anode in order to accelerate the rays. A diaphragm at the anode produced a beam which was deflected. A screen was placed at the end of the apparatus, at which the impacts were photographed by a camera. They subsequently computated the ratio of transverse electromagnetic mass mT and rest mass m0 indicated by the red and blue curve, and obtained good agreement with the Lorentz-Einstein formula. Their experiments were considered by many as conclusively proving the Lorentz-Einstein formula. ""Charles Lavanchy [and] Guye was able to develop very precise techniques for measuring particle deflections within carefully controlled electric and magnetic fields. In 1916 and 1921 Guye published these methods and pronounced results in favor of the Lorentzian formulas and Einsteinian theory. Thereafter his reputation rose as a most able experimenter among the world's physicists"". (DSB).
Paris, Bachelier" Genève, Pélisserie, 1915. 4to and 8vo. Both in the original wrapper. Offprints from ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", tome 161, P. 52, 19 juillet 1915 [4to] and ""Archives des Sciences physiques et naturelles"", Tome XL, October 1915 [8vo]. Paper from ""Compte Rendu"" folded in half and ""Archives des Sciences physiques"" has a few nicks to extremities, otherwise to very fine and clean copies. [4to:] 4 pp."" [8vo:] 11 pp.
Two fine offprint issues of Guye and Lavanchy's famous experimental confirmation the Lorentz-Einstein formula which eventually led to a full understanding and acceptance of Einstein's theory of relativity. Einstein himself, though known as not taking much interest in the experimental support of his conceptions, wrote eulogistic letters to Guye after the present paper had been published. In February 1906 Walter Kaufmann made public his conclusion on the experiments he had been performing since 1901 on the electric and magnetic deflections of beta-rays. He claimed that Lorentz' theory of the electron, and thus ""the possibility of founding physics on the principle of relative motion"", had to be rejected. Ten years had to pass until Guye and Lavanchy confirmed the Lorentz theory and thereby proving Kaufmann's measuring equipment for imprecise. In 1915 Guye and Lavanchy measured the deflection of cathode rays at 0.25c-0.5c. They used a tube with a cathode and anode in order to accelerate the rays. A diaphragm at the anode produced a beam which was deflected. A screen was placed at the end of the apparatus, at which the impacts were photographed by a camera. They subsequently computated the ratio of transverse electromagnetic mass mT and rest mass m0 indicated by the red and blue curve, and obtained good agreement with the Lorentz-Einstein formula. Their experiments were considered by many as conclusively proving the Lorentz-Einstein formula. ""Charles Lavanchy [and] Guye was able to develop very precise techniques for measuring particle deflections within carefully controlled electric and magnetic fields. In 1916 and 1921 Guye published these methods and pronounced results in favor of the Lorentzian formulas and Einsteinian theory. Thereafter his reputation rose as a most able experimenter among the world's physicists"". (DSB).
1894 Annecy, C. Burnod, 1894; 2 forts volumes in-8°, brochés, couverture grise imprimée en rouge et noir au 1er plat et dos, armoiries au 1er plat; (10) - XIII - 711pp - (1)f. ; (6) - 789pp.
Très petits accrocs à la couverture, bon exemplaire. (GrG)
Neuchâtel, Imprimerie Richème 1941, 255x195mm, 30pages, broché. Papier cristal d’origine conservé. Petits accrocs sur le haut et le bas du dos, autrement bel exemplaire.
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Lausanne, René Gillon & Cie, 1968, gr. in-8vo, 39 p., ill., photogr. Edouard Baumgartner, brochure originale, étui.
Phone number : 41 (0)26 3223808
Lausanne, Cabinet des médailles, 1948, in-8vo, 19 p. + 4 planches h.-t. de médailles, brochure originale.
Phone number : 41 (0)26 3223808
Phone number : 41 (0)26 3223808
Paris, Librairie Baillière et Fils, 1932, 1952, gr. in-8vo, 2 ff. de publ. de l’éditeur + 638 p., brochure originale illustrée. (dos renforcé en toile).
Phone number : 41 (0)26 3223808
[BOTANIQUE] - IOSSA - LAVANCHY (Mme Marguerite - Charles-Jules)
Reference : F0281
(1914)
Genève, Imprimerie Albert Kündig, 1914 ; 162 x 237 mm, 2-44-68 pp., broché. En langue française. Bon état.
Annecy, Librairie C. Burnod, 1894. Fort (et lourd!) volume in-8 de 711 pages, couverture décorée (petit manque au coin supérieur). Non coupé.
Tome premier seul.
Lausanne, Editions des Trois Collines 1939, 200x140mm, frontispice, 239pages, broché. Bon état.
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J.B. BAILLIERE ET FILS. 1932. In-8. Broché. Bon état, Couv. convenable, Dos satisfaisant, Intérieur frais. 728 pages - quelques illustrations en noir et blanc dans et hors texte - 2 PHOTOS DISPONIBLES - . . . . Classification Dewey : 670-Fabrication industrielle
GRANDES ENCYCLOPEDIES INDUSTRIELLES J.B. BAILLIERE. / DIRECTEUR A. BLONDEL. Classification Dewey : 670-Fabrication industrielle
[Neuchâtel, Imprimerie Richème, 1941. Pt. in-4°, 31p. Broché, couverture illustrée.
Edition originale. Exemplaire enrichi d'un envoi autographe signé de l'auteur (daté de 1952) en page de faux-titre et une petite notice du dédicataire sur l'auteur. Peu courant.
Phone number : 41 (0)26 3223808
Lausanne, chez l’auteur 1975, 240x170mm, 170pages, broché. Bon état.
description de 604 médailles avec leur photographie en n/b, Pour un paiement via PayPal, veuillez nous en faire la demande et nous vous enverrons une facture PayPal
Lausanne, Université de Lausanne 2003, 220x145mm, 381pages, broché. Exemplaire à l'état de neuf.
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Genève, Editions Radar 1952 230x160mm, 282 + 29pages, avec 6 cartes dépliantes, reliure toile de l’éditeur.
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Genève, Editions Radar 1952, 222x155mm, 183pages, nombreux tableaux, broché.
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Sion, Vallesia, 1985 ; 8°,pp.61-100 + 20 planches.
Extrait de Vallésia, tome XL, Sion 1985