T royds (17 Ergebnisse)

PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

hardcover. Zustand: Very Good. Most items will be dispatched the same or the next working day. A copy that has been read, but is in excellent condition. Pages are intact and not marred by notes or highlighting. The spine remains undamaged. 1950. A few small tears and chips to the dust jacket. Otherwise a clear, bright copy within. …

PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

Zustand: Good. Good condition. Very Good dust jacket. (literature, virgil, pastoral poetry) A copy that has been read but remains intact. May contain markings such as bookplates, stamps, limited notes and highlighting, or a few light stains.

HRD. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

Hardcover. 124 p.; 19.5 cm. (The modernist series) VG orig. red cloth in edgeworn tan dj.

HRD. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

Later Edition. Near fine copy in the original stiff-card wrappers; edges very slightly dust-dulled and toned. Remains particularly and surprisingly well-preserved; tight, bright, clean and especially sharp-cornered. Provenance; from the personal library of Professor Lloyd Austin, University of Manchester. Series; Everyman's library. Physical description; 181 pages. Subjects; Virgil. Eclogues. Georgics. 1 Kg.…

Hardcover. xiii, 171, [1] p.; 19.5 cm. VG orig. navy cloth, covers somewhat rubbed.

Hardcover. Zustand: Very Good. IN EXCELLENT CONDITION! pp.xviii, 181 pages, a very good plus hardback, publisher's original full red leather binding with bright gilt lettering to the spine and an equally bright gilt flowery decorative design to the spine and front cover. Also top page edges are gold gilt. Only flaw is minor wear to the top of the spine. Undated so circa 1914.…

Hardback. Zustand: Good. #222 of Everyman's Library. Floral spine. Undated: first edition, thus. Pencil marks to prelims.

Hardcover. Zustand: Good. Clarendon Press, Oxford, 1924. Hardcover. no jacket Decorative blue cloth 148 pages Alternately in English and in Latin. very slight wear to spine Otherwise covers and inside in VERY GOOD CLEAN TIGHT READING ORDER. Full refund if not satisfied. 24 hour despatch. If not pictured in this listing, a scan of the actual book is available on request.…

Zustand: Fair. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In fair condition, suitable as a study copy. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,350grams, ISBN.…

Hardcover. xiii, 122, [1] p.; 19 cm. Eclogue iv and Georgic i.118-146 in Latin with facing English versions. Good spotted orig. sage cloth. Light check marks in margins.

Hardcover. Zustand: Very Good. 1st Edition. Cloth Spine, Papered Boards. July - December 1908, 984 pages, diagrams, figures, 28 plates. Cancelled copy from "Sternwarte Berlin-Babelsberg". Frontcover partially faded, but altogether a very nice copy. Contains important articles by Ernest Rutherford and T.Royds on nuclear physics: Experiments with Radium Emanation. The volume of Emanation; The Spectrum of radium Emanation (with 2 plates); The Action of Radium Emanation upon Water. Also by F. Soddy: Attempts to detect the production of helium from the primary radio Elements; The Relation between Radium and Uranium.…

(21,5 x 14 cm). VII, 872 S. Mit 15 meist gefalteten Tafeln. Halbleinwandband der Zeit. Zu I: Erste Ausgabe dieser bedeutenden Arbeit. "In 1909 Rutherford in conjunction with Royds showed that alpha particles are in fact atoms of helium" (PMM). - Titel etwas gebräunt und gestempelt. Einband etwas berieben, sonst gut erhalten. - Vgl. PMM 411.…

Manchester, 1909. 8vo. Contemp. full cloth. Orig. printed paper label on spine (a bit chipped). In: "Memoirs and Proceedings of the Manchester Literary & Phlosophical Society. (Manchester Memoirs.). Volume LIII. (1908-09). Entire volume offered. The volume contains 24 papers, all with seperate pagination. Rutherford's paper: pp. 1-3. First printing of the paper which Rutherford and Royds gave the final proof that the alpha particle are atoms of helium. The present paper was read on November 3rd 1908 and published on the 19th. It was reprinted in Philosophical Magazine and that paper is dated November 13, 1908 and published February 1909."After nearly a decade of labor, Rutherford was finally prepared to state. what the alpha particle really was "We may conclude that an alpha-particle is a helium atom, or, to be more precise, the alpha-particle, after it has lost its positive charge, is a helium atom". In a paper together with Royds, completed in November 1908, he was even more emphatic: "We can conclude with certainty. that the alpha-particle is a helium atom. They had shown that a discharge sent through a volume in which alpha-particles from radium had been collected produced the characteristic helium spectrum !"(Pais "Inward Bound", p. 61)."Rutherford?s early conviction that the alpha particle was a doubly charged helium atom, but he had not succeeded in proving that belief. In 1908 he and Geiger were able to fire alpha particles into an evacuated tube containing a central, charged wire and to record single events. Ionization by collision, a process studied by Rutherford?s former colleague at Cambridge, J. S. E. Townsend, caused a magnification of the single particle?s charge sufficient to give the electrometer a measurable "kick." By this means they were able to count, for the first time accurately and directly, the number of alpha particles emitted per second from a gram of radium.This experiment enabled Rutherford and Geiger to confirm that every alpha particle causes a faint but discrete flash when it strikes a luminescent zinc sulfide screen, and thus led directly to the widespread method of scintillation counting. It was also the origin of the electrical and electronic methods of particle counting in which Geiger later pioneered. But at this time the scintillation technique, now proved reliable, was more convenient. This counting work also led Rutherford and Geiger to the most accurate value of the fundamental electric charge e before Millikan performed his oil-drop experiment. They measured the total charge from a radium source and divided it by the number of alphas counted to obtain the charge per particle. Since this figure was about twice the previous values of e. they concluded that the alpha was indeed helium with a double charge. But Rutherford still desired decisive, direct proof" and here his skilled glassblower came to his aid. Otto Baumbach in 1908 was able to construct glass tubes thin enough to be transparent to the rapidly moving alpha particles yet capable of containing a gas. Such a tube was filled with emanation and was placed within a larger tube made of thicker glass. In time, alpha particles from the decaying emanation penetrated into and were trapped in the space between inner and outer tubes: and when ROYDS SPARKED THE MATERIAL IN THIS SPACE, THEY SAW THE SPECTRUM OF HELIUM." (DSB).The volume contains 2 other importent papers by Rutherford 1. "Some Properties of the Radium Emanations" (issued Nov. 19th, 1908) and 2. together withY. Tuomikoski "Differences in the Decay of the Radium Emanations" (issued April 7th, 1909).…