Frisch otto r (20 Ergebnisse)

Paperback. Zustand: Very Good.

Zustand: Good. Good condition. 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.

Hardcover. Zustand: Very Good. Second Printing. FIRST EDITION. NY: Basic Books, 1961. Near Fine in original unclipped dust jacket with a bit of toning to spine panel and small tear at foot. Nice condition overall.

Hardcover. Zustand: Very Good. Zustand des Schutzumschlags: Very Good. Second printing. Owner's stamp on front fly, page edges foxed, boards slightly bowed, very good in a very good age-toned dust jacket.

Hardcover. Zustand: Very good. Zustand des Schutzumschlags: Good. Second printing [stated]. vi, [2], 254, [2] pages. Illustrations. Index. Pencil erasure residue on fep. Previous owner's mailing label on fep. DJ has some wear and soiling. Atomic physics is the field of physics that studies atoms as an isolated system of electrons and an atomic nucleus. It is primarily concerned with the arrangement of electrons around the nucleus and the processes by which these arrangements change. This comprises ions, neutral atoms and, unless otherwise stated, it can be assumed that the term atom includes ions. The term atomic physics can be associated with nuclear power and nuclear weapons, due to the synonymous use of atomic and nuclear in standard English. Physicists distinguish between atomic physics - which deals with the atom as a system consisting of a nucleus and electrons - and nuclear physics, which considers atomic nuclei alone. As with many scientific fields, strict delineation can be highly contrived and atomic physics is often considered in the wider context of atomic, molecular, and optical physics. Physics research groups are usually so classified. Otto Robert Frisch FRS (1 October 1904 - 22 September 1979) was an Austrian-British physicist. With Lise Meitner he advanced the first theoretical explanation of nuclear fission (coining the term) and first experimentally detected the fission by-products. Later, with his collaborator Rudolf Peierls he designed the first theoretical mechanism for the detonation of an atomic bomb in 1940. In 1944 at Los Alamos, one of Frisch's tasks as the leader of the Critical Assemblies group was to accurately determine the exact amount of enriched uranium which would be required to create the critical mass, the mass of uranium which would sustain a nuclear chain reaction. He did this by stacking several dozen 3 cm bars of enriched uranium hydride at a time and measuring rising neutron activity as the critical mass was approached. The hydrogen in the metal bars increased the time that the reaction required to accelerate. One day Frisch almost caused a runaway reaction by leaning over the stack, which he termed the "Lady Godiva assembly". His body reflected neutrons back into the stack. Out of the corner of his eye he saw that the red lamps that flickered intermittently when neutrons were being emitted, were 'glowing continuously'. Realizing what was happening, Frisch quickly scattered the bars with his hand. Later he calculated that the radiation dose was "quite harmless" but that if he "had hesitated for another two seconds before removing the material . the dose would have been fatal". "In two seconds he received, by the generous standards of the time, a full day's permissible dose of neutron radiation." In this way his experiments determined the exact masses of uranium required to fire the Little Boy bomb over Hiroshima. He also designed the "dragon's tail" or "guillotine" experiment in which a uranium slug was dropped through a hole in larger fixed mass of uranium, reaching just above critical mass (0.1%) for a fraction of a second. At the meeting to approve the experiment, Richard Feynman, commenting on the transient danger involved, said it was "just like tickling the tail of a sleeping dragon." In the period of about 3 milliseconds, the temperature rose at a rate of 2000°C per sec and over 1015 excess neutrons were emitted. In 1946 he returned to England to take up the post of head of the nuclear physics division of the Atomic Energy Research Establishment at Harwell.…

tapa blanda. Zustand: Bien. Física (53) Alianza Editorial. Madrid. 1975. 18 cm. 328 p. grab. Encuadernación en tapa blanda de editorial. Colección 'Alianza Universidad', numero coleccion(v. 125). O. R. Frisch y otros ; selección y comentarios de David Wobber ; versión española de, Enrique García Camarero, Enrique Paredes y Miguel Paredes. Física. Webber, David. Frisch, Otto Robert . ISBN: 8420621250 (=3642544=) LR213.…

Zustand: Very Good. Prompt Shipment, shipped in Boxes, Tracking PROVIDEDVery good copy with clean pages. 16mo. Published in New York, 1965. 176 pages.

Encuadernación de tapa blanda. Zustand: Aceptable. Librería Aves Del Paraíso. Descripción del libro. Título: La Física Atómica Contemporánea Autor: Otto R. Frisch Editorial: Fondo De Cultura Económica Lugar: México D. F. Año: 1965 Encuadernación: Rustica Páginas: 249 Estado General: Aceptable Traducción: Juan Almela Castell Medidas: 16,5x11cm Peso: 205grs Idioma: Español Detalles: Colección Popular N° 69. Regular estado del lomo y las tapas (ver fotos). Todos nuestros artículos son revisados antes de ser publicados. LAS IMÁGENES DE NUESTRAS PUBLICACIONES SON ORIGINALES DE NUESTROS ARTÍCULOS.…

Hardcover. Zustand: Fine. Zustand des Schutzumschlags: Fine. 1st Edition. Xiii, 333Pp. Beige Cloth. First Printing. Fine In Fine Dust Jacket Priced $4.95. Yang's Article Is On Parity.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Otto Frisch took part in some of the most exciting developments of modern physics, including the discovery of nuclear fission -- he coined that term -- which led to atomic power and atomic weapons. Working on those weapons during World War II he met the scientist and organizer, Robert Oppenheimer, and the passionate maverick, Edward Teller, as well as the mathematical genius, John von Neumann, from whom he first heard about electronic computers, which were just coming into being.He was still a child when Einstein rose to fame and when Bohr devised his atomic model, based on Rutherford's discovery of the atomic nucleus; but later he met all those great scientists (and many others) and indeed worked for five years in Copenhagen under Bohr, whom he regarded as the deepest thinker among them. By vividly describing our growing knowledge of matter and energy he creates the background for his (mostly) affectionate pen portraits, enlivened by entertaining anecdotes, of the many scientists he met.He saw the first atom bomb explode 'like the light of a thousand suns', and later during his thirty years in Cambridge he saw the birth and growth of radioastronomy, and the unravelling of the double helix of heredity. Carefully chosen pictures -- some drawn by the author himself -- help in making the book enjoyable to scientists and non-scientists alike.…

Hardcover. Zustand: Very Good. Zustand des Schutzumschlags: Good+. 254 pages in very good condition. Pages are clean and unmarked with black and white plates throughout. Previous owner's bookplate on the fpdep. Bound in blue cloth with beige and black titles. Beige dustjacket in good condition with black titles. Worn around the edges with chips and tears. Smudged, stained, darkened on the spine. NPC. VG/G+. Book.…

Couverture rigide. Zustand: bon. RO40016478: 1972. In-8. Relié toilé. Bon état, Couv. convenable, Dos satisfaisant, Intérieur frais. 213 pages augmentées de nombreuses illustrations en couleurs et noir et blanc dans et hors texte. . . . Classification Dewey : 550-Sciences de la Terre et des autres mondes.…

Couverture rigide. Zustand: bon. RO30079108: non daté. In-8. Relié toilé. Bon état, Couv. convenable, Dos satisfaisant, Intérieur frais. 213 pages. Nombreuses illustrations en noir et blanc et en couleurs dans le texte et hors texte. Jaquette en état d'usage. Avec Jaquette. . . Classification Dewey : 500-SCIENCES DE LA NATURE ET MATHEMATIQUES.…

Couverture souple. Zustand: bon. R150192718: 1964. In-8. Broché. Etat d'usage, Couv. convenable, Coiffe en pied abîmée, Intérieur frais. 276 pages. . . . Classification Dewey : 539-Physique nucléaire.

First Edition. 8vo, pp.13, [1]; a fine and fresh copy in the original red printed wrappers.First edition of this highly important paper, published in Det Kgl.Danske Videnskabernes Selskab. Mathematisk-Fysiske Meddelelser, vol.17, no.5. 'The rapid developments in physics during the 1930s, such as the discovery of the neutron, artificial radioactivity and the positron, did not leave Meitner behind. In 1933, she used a Wilson cloud chamber to photograph positron production by gamma radiation and in the following year, she began to study the effects of neutron bombardment on uranium with Hahn. They were interested in confirming the results of Enrico Fermi (19011954) that suggested the production of transuranic elements, that is, elements with atomic numbers higher than that of uranium (92). In 1935, Meitner and Hahn used a hydrogen sulphide precipitation method to remove elements with atomic numbers between 84 and 92 from their neutron-irradiated sample of uranium. They thought they had found evidence for elements with atomic numbers 93, 94, 95 and 96. Then in 1938, after Meitner was forced to flee from Germany, Hahn and Strassmann found that the radioactive elements produced by neutron bombardment of uranium had properties like radium. From Sweden, Meitner requested firm chemical evidence for the identities of the products. Hahn and Strassmann were surprised to find that the neutron bombardment had produced not transuranic elements but three isotopes of barium, which has an atomic number of 96' (Hutchinson's Dictionary of Scientific Biography, p.474). 'The evidence for transuranic elements was thus placed in doubt, since sulphide precipitation did not eliminate elements lighter than plutonium. Meitner discussed this news with Frisch. It soon became clear that Bohr's droplet model of the nucleus must provide the clue to understanding how barium nuclei could be formed from uranium nuclei, which are almost twice as heavy. Frisch suggested that the division into two smaller nuclei was made possible through the mutual repulsion of the many protons of the uranium nucleus, making it behave like a droplet in which the surface tension has been greatly reduced by its electric charge. Meitner estimated the difference between the mass of the uranium nucleus (plus the extra neutron with which it had been bombarded) and the slightly smaller total mass of the two fragment nuclei; from this she worked out (by Einstein's mass-energy equivalence) the large amount of energy that was bound to be released. The two mutually repulsed fragments would, indeed, be driven apart with an energy that agreed with their value, so it all fitted. 'Meitner and Frisch reported these findings in a joint paper that described this "nuclear fission" (composed over the telephone, since she was in Stockholm and he had returned to Copenhagen)' (DSB). 'They predicted correctly that krypton would also be found among the products of this splitting process, which they named fission. A paper describing their analysis appeared in January 1939, and immediately set in motion a series of discoveries leading to the first nuclear reactor in 1942 and the first atomic bomb in 1945' (Hutchinson's Dictionary of Scientific Biography, ibid.). Language: English.…

Gebundene Ausgabe. Zustand: Gut. 276 S. Ehemaliges Bibliotheksexemplar mit üblichen Bibliotheksmarkierungen. KEINE Eintragungen/Markierungen. Sonst gut erhalten. What little I remember Atomerinnerungen in der alten und der neuen Welt Otto Robert Frisch (1904-1979) ist einer der Pioniere der Atomenergie. zusammen mit seiner Tante Lise Meitner errechnete er die bei der Spaltung eines Uranatoms freigesetzte Energie und verifizierte sie in einem entscheidenden Experiment. Mit Rudolf Peierl errechnete er die kritische Masse des Urans und schätzte die bei ihrer Explosion frei werdende Energie. Peierls und Frisch warnten dann die britische Regierung, daß der Bau einer Atoimbombe in Hitlers Deutschland prinzipiell möglich wäre. Frischs Erinnerungen zeigen ihn nicht als dämonischen Erfinder der Atombombe, sondern als weltfremden, lustigen und verspielten Bastler. Max F. Perutz. - Wir versenden aus unserem deutschen Lager heraus in plastikfreien oder wiederverwendeten Polstertaschen. Sprache: Deutsch Gewicht in Gramm: 399.…

Gebundene Ausgabe. Zustand: Sehr gut. 276 S. Gebrauchtes Exemplar in sehr gutem Zustand. KEINE Eintragungen/Markierungen. What little I remember Atomerinnerungen in der alten und der neuen Welt Otto Robert Frisch (1904-1979) ist einer der Pioniere der Atomenergie. zusammen mit seiner Tante Lise Meitner errechnete er die bei der Spaltung eines Uranatoms freigesetzte Energie und verifizierte sie in einem entscheidenden Experiment. Mit Rudolf Peierl errechnete er die kritische Masse des Urans und schätzte die bei ihrer Explosion frei werdende Energie. Peierls und Frisch warnten dann die britische Regierung, daß der Bau einer Atoimbombe in Hitlers Deutschland prinzipiell möglich wäre. Frischs Erinnerungen zeigen ihn nicht als dämonischen Erfinder der Atombombe, sondern als weltfremden, lustigen und verspielten Bastler. Max F. Perutz. - Wir versenden aus unserem deutschen Lager heraus in plastikfreien oder wiederverwendeten Polstertaschen. Sprache: Deutsch Gewicht in Gramm: 399.…

Hardcover. Zustand: gut. 1981. Woran ich mich erinnere Physik und Physiker meiner Zeit In deutscher Sprache. pages.

8vo. 1 p. Mit eigenh. Kuvert. An Dr. Biesewig: danke für das hübsche Bild vom Brandenburger Tor. Grüßen Sie mir die Unterschrift von Planck; den hab ich mehrmals gesehen. []" - Nach der Flucht vor den Nationalsozialisten wurde Frisch britischer Staatsbürger. Zusammen mit seiner Tante Lise Meitner gelang ihm 1939 die erste theoretische Deutung der Kernspaltung. Mit Rudolf Peierls schrieb er 1940 das Frisch-Peierls-Memorandum, das erste theoretisch-technische Dokument zum Bau einer Atombombe mittels Uran-235.…

Stern, Otto (1888-1969); Otto Robert Frisch (1904-79) Über die magnetische Ablenkung von Wasserstoffmolekülen und das magnetische Moment des Protons. I. Offprint from Zeitschrift für Physik 85 (1933). 4-16pp. Original printed wrappers, slightly spotted. Very good. First Edition, Offprint Issue. Using the molecular beam method he had developed in the 1920s, Stern and his collaborators became the first to measure the magnetic moment of the proton, as announced in the present paper (Stern's follow-up paper, written with Immanuel Esterman, was published in the Zeitschrift a few months later). Stern received the Nobel Prize for physics in 1943 for this achievement; his co-author, Otto Frisch, went on to play a crucial role in the discovery of nuclear fission. Between 1923 and 1933, when Stern was professor of physical chemistry at Hamburg, he headed a program devoted to molecular-beam research. In the early 1930s he set out to test the validity of Dirac's theory that "the ratio of the magnetic moment of the proton to that of the electron should have been the same as the inverse ratio of their masses. This theory was believed so generally that when Stern, O. R. Frisch, and [Estermann] began the very difficult experiments, they were told more than once that they were wasting their time and effort. But Stern's perseverance paid off. Measurements showed a proton magnetic moment two or three times larger than expected . . . It is this work that was specifically mentioned in Stern's Nobel Prize citation" (Dictionary of Scientific Biography). The proton's unexpectedly large magnetic moment remained a puzzle until the development of quark theory in the 1960s. It is now known that protons and neutrons are not elementary particles as once thought, but are composed of quarks, and the magnetic moments of the quarks can be used to compute the magnetic moments of the proton and neutron. Ezhela et al., Particle Physics: One Hundred Years of Discoveries, p. 69. . …