Rutherford ernst (7 résultats)

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Hardcover. Etat : Very Good. Ernest Rutherford, "The Scattering of the [alpha] and [beta] Rays and the Structure of the Atom" AND Hans Geiger, "The Large Scattering of the [alpha] Particles" in "Nature", volume 86, no. 2162, 6 April 1911, both appear on page 201 in the weekly issue of pp 169-202. [++] This brief announcement in "Nature" is highly significant as it appears a month before the pivotal and explosive Rutherford article to appear in print, the editors abstracting the Rutherford/Geiger effort that would appear in full form only later in May in the Philosophical Magazine. (Rutherford, E. (May 1911),LXXIX, "The scattering of [alpha] and [beta] particles by matter and the structure of the atom," Philosophical Magazine (125): 669-688.) [++] This is the full weekly Nature issue newly bound in a bi-color cloth binding, with a paper title label on the front board. There is some dampstaining to the text, though the binding itself is new. Nice copy, with some original advertisements from this issue bound in fore and aft. [++] The "Nature" reports is an abstract of Rutherford's 7 March talk to the Manchester Literary and Philosophical Society (while Rutherford was at the University of Manchester, right after McGill) each summary running about 250 words. (There are also abstracts of the Rutherford and Geiger presentations that appear on pp xviii-xx of the "Proceedings of the Manchester Literary and Philosophical Society"--the report on the abstracts state 7 March but over the next three pages there are other reports dated from MArch to May, so it is logical that the 7 March Manchester Rutherford was printed months after that date.) The report summarizes Rutherford's famous gold foil experiment resulting in a pivotal paper in the history of the atomic nucleus, indeed establishing the concept of a small, dense atomic nucleus which would supplant the JJ Thomson plum pudding theory.[++] "Rutherford s greatest discovery at Manchester in fact, of his career was of the nuclear structure of the atom."--Complete DSB online. [++]  "In 1911, as a result of bombarding gold foil with alpha particles, Rutherford formulated the hypothesis of the nuclear construction of the atom which is the basis of all subsequent work in atomic physics and chemistry. Most of the alpha particles passed through the foil, but some bounced back. Rutherford interpreted the bouncing in terms of his theory. Those that went through were simply passing through the planetary systems of electrons, while those that bounced back had hit, or interacted with, a nucleus"-- Printing and the Mind of Man, 411 (in referencing the Phil Mag appearance). [++] On Geiger, this is the relation theoretically deduced by Prof. Rutherford in the foregoing paper. …

(London, Harrison and Sons, 1897). 4to. No wrappers as extracted from "Philosophical Transactions" Year 1897, Vol. 189 - A. Pp. 1-24., texfigs. First appearance of this importent paper, the first paper by Rutherford published in England, in which he describes his invention of the "Magnetic detector" before Marconi made use of it in his wireless telegraphy across the Atlantic in 1901.On his arrival at Cambridge (in 1895) his talents were quickly recognized by Professor Thomson. During his first spell at the Cavendish Laboratory, he invented the detector for electromagnetic waves, an essential feature being an ingenious magnetizing coil containing tiny bundles of magnetized iron wire. The detector made it possible to send wireless signals. …