Rupp Emil (9 results)

[NO ISBN] 1938, 1st edition. (hardcover) Very good, no dust jacket. 63pp, [2]. 8vo. Crème paper boards; lettering in brown to spine. Boards lightly dirtied from rubbing; shelfwear. Head of spine and top corners bruised. Lacking dust jacket. Textblock evenly toned. Else internally clean. Text in German. From the "Stuttgarter Volksdeutsche Bücherei" series; "Die Deutsche Ostmark". Edited by Kurt A. Szepull and August Rupp.

8°, Halbleinen, 140 Seiten, geringe Gebrauchsspuren an Einband und Block, Block sauber und fest, Seiten 26 und 27 mit farbigen Unterstreichungen Der grafische Betrieb Wissen und Praxis Band 1 Stichworte: ober Deutsch 300g.

Softcover. Condition: Gut. 136 S. mit Abbildungen, Skizzen; Original-Karton (Papier etwas zeitbed.nachgebräunt, sonst gutes Exemplar); Gr.8°. Beiliegend 1 größeres Musterblatt f.Unterrichszwecke der Akademie für das Graphische Gewerbe, München.

Broschiert. Condition: Gut. 137 Seiten Wilhelm Knapp 1951 : Dr. Emil Rupp - Pappband 137s. - Der grafische betrieb wissen und praxis Band 7 - 9-12-1-L3 2A-YTN6-0DVC Sprache: Deutsch Gewicht in Gramm: 500.

Condition: - keine Angabe -. 1. Aufl.;. 8° 157 Seiten, 44 Abbildungen; Orig.-Halbleinen; 290g; [Deutsch]; Einband leicht gebräunt und beschmutzt, Ecken bestoßen 1. Auflage; _ xXx_. BUCH.

Soft cover. Condition: New. Albert Einstein, "Interferenzeigenschaften des durch Kanalstrahlen emittierten Lichtes" AND Emil Rupp, "Über die Interferenzeigenschaften des Kanalstrahllichtes", in Sitzungsberichte der Preussischen Akademie der Wissenschaften 25, 1926. Berlin, Verlag der Akademie der Wissenschaften, volume 25/26, pp 333-357, with the Einstein on pp 334-340 and the Rupp on pp 341-351. Original wrappers. There is some slight discoloration to the pale green wrappers along the spine edges, otherwise this is in fine condition. __+__ Aha these two papers are the seat of a famous/infamous scandal in the history of physics, something that I am going to Very Badly Name: "The Famous E Rupptian of 1926". (Oh, by Neptune's Fancy Bloated Pants, that is bad.) The two papers listed here by Einstein and Rupp form the great Einstein/Rupp scandal of 1926. Einstein's paper was a proposition to demonstrate the instantaneous emission of light instead of the classical emission over time. (In the spring of 1926, Albert Einstein proposed to Emil Rupp to do two experiments that were to probe the wave versus particle nature of light: the so-called Wire Grid Experiment and the Rotated Mirror Experiment --Jeroen van Dongen, "Emil Rupp, Albert Einstein and the canal ray experiments on wave-particle duality: Scientific fraud and theoretical bias", Historical Studies in the Physical and Biological Sciences 37 Suppl. (2007) 73-120.) Rupp was a considerable physicist and turned his powers to the experimental demonstration of the Einstein hypothesis, publishing his supporting results in this same issue (October 1926). Unfortunately, his results were shown to be fake/fabricated, and with that entered into a different sort of history than he expected. This sort of thing doesn't seem to happen all that often so far as I can tell, though this one was a doozy. __+__ In July, 1926, at a session of the Prussian Academy of Sciences, he announced his new conviction that all interference experiments would conform to a classical description of the radiation process. He had corresponded with Rupp on the matter of doing experiments on the question, and the Proceedings of the Prussian Academy (Berlin Academy) for October 1926 [the issue offered here] contain a paper by Einstein presenting at length his new view of the matter, followed immediately by a paper by Rupp describing experiments he claimed to have made in support of Einstein s conclusions.The reported results of both experiments (by Rupp) supported Einstein s conclusion that the interference behavior of the emitted light agreed with what would follow from a classical picture of the emission process. --A.P. French, "The Strange Case of Emil Rupp", Physics in Perspective, I, 3-21, 1999. In any event, these are the source papers for a controversy that would brew, then dissolve, and then return again.

Softcover. Condition: Gut. 124 S. Alle Bücher & Medienartikel von Book Broker sind stets in gutem & sehr gutem gebrauchsfähigen Zustand. Unser Produktfoto entspricht dem hier angebotenen Artikel, dieser weist folgende Merkmale auf: Gebundene Ausgabe. Ausgabejahr: 1952. Altersentsprechend nachgedunkelte/saubere Seiten in fester Bindung. Leichte Gebrauchsspuren. Sprache: Deutsch Gewicht in Gramm: 314.

(21 x 15 cm). (10) 137 S. Mit 36 Abbildungen. Original-Halbleinwandband. (Der grafische Betrieb. Wissen und Praxis). Wohlerhalten.

1st Edition. FIRST EDITION OF A PIONEERING PAPER ON THE GENERATION OF MICROWAVES, specifically, it is "the first description of the fundamental principles behind modern high power linear beam microwave electron tubes" (Sarkar, History of Wireless, 341). The authors develop their concept of velocity modulation and spatial bunching, then describe and demonstrate their mechanism for velocity modulation in linear-beam tubes. Agnesa Arsenjeva-Heil, a young Russian physicist, and her husband, a German scientist, Oskar Ernst Heil conducted their research with Lord Rutherford at the Cavendish Laboratory in Cambridge. Prior to their work, "studies of the classical triode valve in which an anode current is controlled by a grid had shown that a fundamental difficulty for the highest frequencies was the excess grid control power needed due to electron inertia" (Dummer, Electronic Inventions and Discoveries, 108). To circumvent this problem, Arsenjeva-Heil and Heil's developed the concept of a velocity-modulated tube "in which a beam of electrons could be made to form into "bunches" and thereby generate with reasonable efficiency radio waves of considerably higher frequency and power than were possible with conventional vacuum tubes/thermionic valves" (Wikipedia). In History of Wireless, Sarkar writes that the authors describe "a transit-time tube in which the three characteristic features; velocity modulation, phase focusing, and energy transfer were designed to occur in three separate regions, an arrangement which is also characteristic of a klystron. Further they demonstrated, in my opinion for the first time, that it is necessary, in order to achieve high RF power output, to use a linear electron beam, and that the beam must be positioned in such a way as to prevent the electrons from landing on RF electrodes - they must only be allowed to penetrate the fringe field of the RF electrodes, finally landing on a separate electrode, now called the collector. This arrangement made it possible to separate high frequency from beam guiding electrodes, thus permitting the use of high power electron beams. The authors also proposed "a two-beam electron gun and a multistage depressed collector for efficiency enhancement by the use of a step-wise reduced voltage collector, a technique which is now commonly used in high power microwave tubes" (Sarkar, History of Wireless, 341-2). ALSO INCLUDED is a retraction by the German physicist Emil Rupp of experimental work conducted in the 1920s. "In 1926, Rupp's canal ray experiments seemed to corroborate Einstein's theories on wave-particle duality. He published these results in a paper that was printed next to a theoretical paper on the same subject by Einstein, who evidently accepted Rupp's alleged findings as confirming his (Einstein's) theoretical model. Rupp's experimental results were later shown to have been falsified (although subsequent experimental work re-confirmed Einstein's model). CONDITION & DETAILS: Berlin: Julius Springer. Full volume. Bears the ownership stamp on the blank front flyleaf of Friedrich Hund, a German physicist known for his work on atoms and molecules. Ex-libris bearing two small stamps on the rear of the title page. Provenance: (9 x 6.5 inches; 225 x 163mm). [viii], 818pp, [2]. Bound in black cloth over marbled paper boards; very slight rubbing at the edge tips. Tightly and very solidly bound. Bright and clean inside and out. Near fine.