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Doctrines et pratiques comptables approfondies - Plan comptable 1982 - Techniques comptables et financieres d'aujourd'hui
ENTREPRISE MODERNE D'EDITION. 1984. In-8. Broché. Etat d'usage, Couv. convenable, Dos satisfaisant, Quelques rousseurs. 270 PAGES. . . . Classification Dewey : 657-Comptabilité
Classification Dewey : 657-Comptabilité
"MAGNAN, CLAUDE - JEAN THIBAUD et ANDRÉ MOUSSA - CHARLES HAENNY et ALBERT ROSENBERG - FRANCIS PERRIN - GUIDO BECK et PETER HAVAS.
Reference : 49286
(1939)
Sur la cassure des noyaux éléments plus légers que l'uranium, sous le bombardement des neutrons. (+) Sur la rupture des noyaux d'uranium sous l'action des neutrons et la libération d'énergie qui en résulte. (+) Émission de neutrons lors de la... - [THE ATOM BOMB AND NUCLEAR ENERGY.]
(Paris, Gauthier-Villars), 1939. 4to. No wrappers. In: ""Comptes Rendus hebdomadaires des Séances de L'Academie des Sciences"", tome 208, No 10, 12, 18, 20 a. 21. Pp. (5 Entire issues offered). The papers: pp. 742-744, 744-746, 898-900,1394-96,1573-1575 a. 1643-1645. Disbound.
First printing of 5 importent papers containing substantial contributions to the development and understanding of the fission process in the crucial year 1939, the results leading to the creation the atomic bomb and nuclear energy production. Among the papers here are Francis Perrin's landmark paper: ""Calcul relatif aux conditions éventuelles de transmutation en chaine de l'uranium."" (in 2 parts).Nuclear fission of heavy elements was discovered on December 17, 1938 by Otto Hahn and his assistant Fritz Strassmann, and explained theoretically in January 1939 by Lise Meitner and her nephew Otto Robert Frisch. The Group at College de France, headed by Joliot and Perrin, worked in the month after January intensively with the uranium processes and succeeded in establishing the possibility of nuclear chain reactions and nuclear energy production.""The remaining piece of the fission/atomic bomb concept was provided in 1939 by Francis Perrin who introduced the concept of the critical mass of uranium required to produce a self-sustaining release of energy. His theories were extended by Rudolf Peierls at Birmingham University and the resulting calculations were of considerable importance in the development of the atomic bomb. Perrin's group in Paris continued their studies and demonstrated that a chain reaction could be sustained in a uranium-water mixture (the water being used to slow down the neutrons) provided external neutrons were injected into the system. They also demonstrated the idea of introducing neutron-absorbing material to limit the multiplication of neutrons and thus control the nuclear reaction (which is the basis for the operation of a nuclear power station).""
[REVUE] Pierre Albert-Birot, Jean Cassou, Léon-Paul Fargue, Jean Follain, Benjamin Fondane, Max Jacob, Pierre Jean Jouve, Francis Picabia, Raymond Queneau, André Salmon, Jules Supervielle, Tristan Tzara, Paul Valéry, raymond datheil, José-Marie Allaire, Jean l’Anselme, Emilie Assouakon, Moshé Ben-Shaoul, Camilo José Cela, Ahmad Chamlou, Gérard Cléry, Claude Couffon, Bruno Durocher, Paul Froux, Juan Gelman, Nicole Gdalia, Haïm Gouri, Sarah Kirsch, Jean Laugier, Gérard Lemaître, Jacques Lepage, Hervé-Masson, S. Castanos de Médicis, Name seck M’backe, Dan Pagis, Irène Pailler, Andrzej Piotrowski, Françoise Py, Dahlia Rabinowitch, Monique Rosenberg, Jean Rousselot, Marie-José Salas de Baillasteros, Jacques José Sheenastarks, Roger Toulouse, Nathan Zach, Zdenka Datheil, Francis Picabia, Roger Toulouse...
Reference : 16773
Caractères, n° 30-31, c. 1983. Un volume in-8°, broché.
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