De la rive lucien (3 Ergebnisse)

185x120mm, 99pages, broché, quelques rousseurs. Envois Europe : TVA inclus dans montant final. Exceptions taxes postales locales à la charge de l'acheteur (~2 EUR). Si nécéssaire, contact via notre page d'accueil / Shipping to Europe : VAT included in total amount. Local postal fees apply to buyers in Europe (~2 EUR). Contact us via our homepage if needed. Envoi groupé : les frais de port sont calculés sur le poids total de la commande ; chaque livre supplémentaire coûte donc beaucoup moins cher à expédier. Commandez plusieurs livres et économisez sur le port ! / Combined shipping: postage is charged on the total weight of your order, so each additional book ships at a reduced rate ? order several books from us and save on postage.…

Mém. Soc. Physique et Hist. Natur. de Genève, 30/4. - Genève, H.Georg, 1884, 4°, 99 pp., 19 Fig., Broschur. Lucien de la Rive 1834 1924 erforschte mit Emile Édouard Sarasin 1843-1917 über die Hertz'schen Wellen und wies die Lichtgeschwindigkeit in den Drähten nach.

Arch. Sciences physic. natur., 29.Bd. - Avirl et mai 1893, 8°, 67, mit vier zum Teil gefalt. Tafeln, orig. Broschur; mit eigenhändiger Widmung von Ed. Sarasin an Henir Veillon auf Titelblatt; frisches und unbeschnittenes Exemplar. In his celebrated 1888 experiment on standing waves, Hertz found the velocity of transmission along a wire line to depend on wavelength and to differ from that for wireless transmission, a result that was in contradiction to theory. Hertz called on others to repeat the experiments and verify or refute his results. The call was heard by two groups of scientists. In Dublin, George Francis Fitzgerald and associates repeated and elaborated Hertz's experimental discoveries. For wire transmission, their results were in good agreement with those of Hertz. On the other hand Édouard Sarasin and Lucien de la Rive of Geneva obtained the results required by theory. Hertz looked for an explanation of his own results in the ambient conditions of his apparatus. He corresponded with both Fitzgerald and with the Genevan scientists.…