Fernparallelismus (24 résultats)

Soft Cover. Etat : Near Fine. 20 pages. Grey stapled wraps. Limited to 400 copies.

Paperback. Etat : Very Good. First Edition; First Printing. First Edition, First Printing (No additional printings stated). Very Good with moderate wear, some soil to covers and no marks to text. Bookplate on inside of front cover. Staplebound in card wraps. Poetry; 8vo 8" - 9" tall; 20 pages.

Softcover. Etat : Near Fine. First edition. 20pp. Gray printed wrappers, stapled. Wrappers lightly faded along extremities, else near fine. Part of this poem appeared in *The Pearl*.

Softcover. Etat : Near Fine. First edition. 20pp. Gray printed wrappers, stapled. A few light creases at the spine, near fine. Part of this poem appeared in *The Pearl*.

Wrappers (Paperbound). Etat : Near Fine. pp. 3-11. Near Fine.

Softcover. Etat : Gut. S.466-474 in: Sitzungsberichte Berlin XXV, XXVI 1928. Original-Broschur. Im Falz etwas lichtrandig, sonst sehr gut erhalten.

Broschur. Etat : Gut. Sonderdruck des Artikels , leichte Gebrauchspuren. Size: 8°. Buch.

Softcover. Etat : Sehr gut. Ohne Schutzumschlag. 1. Auflage. S.401-402 in: Sitzungsberichte XXI-XXIII, Berlin 1930. Original-Broschur. Bestens erhalten.

brochure, small 4to 11 pp. riemann Metrik; Auflösung der algebraïsche Gleichungen; very good condition.

Soft cover. First Thus. First Thus. Soft cover. Einstein, Albert (1879-1955). Riemann-Geometrie mit Aufrechterhaltung des Begriffes des Fernparallelismus. Berlin: Verlag der Akademie der Wissenschaften, 1928. 4to., 7pp. Orange wrappers. A very fine copy of this uncommon offprint. First Edition; the rare off-print from the "Sitzungsberichten". 'The general relativity theory splendidly justified his work. In this mathematical apparatus developed from Riemann's address, Einstein found the frame to fit his physicals ideas, his cosmology, and cosmogeny; and the spirit of Riemann's address, was just what physics needed: the metric structure determined by physical data'. -cf. DSB XI, 447-456 (Riemann)Weil No.161; Schilpp-Shields No. 217; Alicke No. 139. The early Offprints from "Sitzungsberichten." are called "Sonderabdruck" up to Weil No.165 (including this). From Weil 166 they are called "Sonderausgabe.". - Before 161 (up to 160) the Offprints do not have separate title and pagination (the pagination follows the numbering in the periodical). From 166 the Offprint has both separate printed title and pagination. - ( So Weil Nos 161-165 is still "Abdruck", but with separate title and pagination).".…

Berlin, Akademie der Wissenschaften, 1931. 4to. Orig. printed green wrappers in Sitzungsberichte 1931 Heft XIII-XV pp. 257-65. Small nicks to frontwrapper. First edition in the periodical form. - Weil: 180.

S.Ber. Akad. Wiss. Berl., 1931/13. - Berlin, Verlag der Akademie der Wissenschaften, 1931, 8°, 11 S., orig. Broschur. First Edition; the rare off-print from the "Sitzungsberichte". More and more frequently Einstein chose his assistants from mathematicians." One of the chief of them at that time was Professor Walter Mayer, a small round individual who, at first sight, seemed crushed beneath the personality of Einstein. Einstein's family called him Mayerle and this Swabian diminutive suited him to perfection. But in Mayer's self-effacement there was more affection than respect. He gently contradicted Einstein, interrupted him when necessary, follwed up an argument and smiled a little mysteriously, his head on one side, as he watched the figures drawn up in front of him. "It is he who produced all my calculations; his skill is fantastic, you know, "Einstein used to say. In October 1933 Mayer followed Einstein in his American exile. -cf. Alicke Weil No.180; Schilpp-Shields No. 250; Alicke No. 149.…

Etat : Near Fine. Imperial 8vo (25, 4: 18, 2 cm). 11 [1] pages. Letterpress on machine paper, in original publisher's brochure on orange stock with black title printing. First offprint in the original wrappers and new pagination, of this late paper by Einstein about field equations in a Riemannian Space. - Content: This work was written in collaboration with his assistant, the Austrian mathematician Walther Mayer (nicknamed "Einstein's calculator"). In 1928 Einstein already had made use of the Elliptic geometry of German mathematician Bernhard Riemann for his calculations. - Condition: Mint. - Reference: Alicke 149; Schilpp-Shields 250; Weil 180 (quotes the pagination of the first separate printing, p. 257-265).…

Etat : Near Fine. Imperial 8vo (25, 4: 18, 2 cm). 7 [1] pages. Letterpress on machine paper, in original publisher's brochure on salmon-coloured stock with black title printing. First offprint in the original wrappers, of Einstein's application of the Elliptic geometry by German mathematician Bernhard Riemann. - Contents: In this mathematical apparatus developed from Riemann's address, Einstein found the frame to fit his physicals ideas, his cosmology, and cosmogeny; and the spirit of Riemann's address, was just what physics needed: the metric structure determined by physical data'. -cf. DSB XI, 447-456 (Riemann). - Condition: Mint. - Reference: Boni-Russ-L. 171; Schilpp-Shields 212; Weil 161 (differs in pagination, p. 217-221).…

Berlin, Gruyter & Co., 1931. 4to. Orig. printed orange wrappers. Offprint/Sonderausgabe aus Sitzungsberichten.pp. (1)-11. Fine fresh copy. First edition of the rare Offprint with separate title and separate pagination. Se Weil No. 180, where this is not mentioned. - Mayer came to America in 1933, and about him as his collaborator, Einstein said "It is he who produced all my calculations, his skill is fantastic, You know."The early Offprints from "Sitzungsberichten." are called "Sonderabdruck" up to Weil No.165 (including this). From Weil 166 they are called "Sonderausgabe.". - Before 161 (up to 160) the Offprints do not have separate title and pagination (the pagination follows the numbering in the periodical). From 166 the Offprint has both separate printed title and pagination. - ( So Weil Nos 161-165 is still "Abdruck", but with separate title and pagination). These facts are not mentioned in the bibliographies. …

Etat : Sehr gut. Zustand: Sehr gut | Produktart: Bücher | Keine Beschreibung verfügbar.

Berlin, Gruyter & Co., 1928. 4to. Orig. printed orange wrappers. Offprint/Sonderabruck aus Sitzungsberichten.pp. (1)-7. Fine fresh copy. First edition of the rare Offprint, still called "Abdruck", but now having separate pagination and separate printed title, see Weil No. 161 where this is not mentioned.The early Offprints from "Sitzungsberichten." are called "Sonderabdruck" up to Weil No.165 (including this). From Weil 166 they are called "Sonderausgabe.". - Before 161 (up to 160) the Offprints do not have separate title and pagination (the pagination follows the numbering in the periodical). From 166 the Offprint has both separate printed title and pagination. - ( So Weil Nos 161-165 is still "Abdruck", but with separate title and pagination). These facts are not mentioned in the bibliographies.…

Etat : very good. Berlin,1928. Orig. wrappers. 7pp. (Sonderabdruck aus den Sitzungsberichte der Preussischen Akademie der Wissenschaften Phys.-Math. Klasse. 1928. XVII). Very good copy of offprint. Boni 174. Condition : very good copy. Keywords : , Einstein, Albert (1879-1955).

S.Ber. Akad. Wiss. Berl., 1928/17. - Berlin, Verlag der Akademie der Wissenschaften, 1928, 8°, 7 S., orig. Broschur. First Edition; the rare off-print from the "Sitzungsberichte". 'The general relativity theory splendidly justified his work. In this mathematical apparatus developed from Riemann's address, Einstein found the frame to fit his physicals ideas, his cosmology, and cosmogeny; and the spirit of Riemann's address, was just what physics needed: the metric structure determined by physical data'. -cf. DSB XI, 447-456 (Riemann) Weil No.161; Schilpp-Shields No. 217; Alicke No. 139.…

First separate edition. 8vo. 7, [1, blank] pp. Original printed wrappers. Berlin, Verlag der Akademie der Wissenschaften in Kommission bei der Vereinigung wissenschaftlicher Verleger Walter de Gruyter u. Co., Sitzungsberichten der Preussischen Akademie der Wissenschaften. Phys.-Math. Klasse. XVII.  An original offprint of Einstein's article on 'Riemannian Geometry Retaining the Concept of Distant Parallelism'. …

First edition. UNIFIED FIELD THEORY. First edition, extremely rare author's presentation offprints (("Überreicht vom Verfasser", not to be confused with the much more common trade separates - see below), from the library of the great German physicist Arnold Sommerfeld, of Einstein's most important early publications on unified field theory. Einstein's work on unified field theory was inspired by James Clerk Maxwell's success in finding a unified theory of electricity and magnetism, one of the greatest achievements of nineteenth-century physics, which showed that light was a form of electromagnetic wave, and made possible modern inventions such as radio, television and the telephone. Einstein's contributions in this area represent about a quarter of his entire research output and half his scientific production after 1920. Although he was ultimately unsuccessful, a similar vision was realized in the decades after his death in the construction of the 'standard model', a unified theory of electromagnetism with the weak and strong nuclear forces (which were unknown in Einstein's time), and efforts to incorporate gravity into the model continue to this day. 'Zur allgemeinen Relativitätstheorie', written on board ship during his return journey from Japan, "gives us insight into the workings of Einstein's mind as it searched for a unified theory of gravitation and electromagnetism, a search that would dominate his thinking for the rest of his life" (Collected Papers 13, p. lxxvii). 'Einheitliche Feldtheorie von Gravitation und Elektrizität' was the first paper to use the term 'Unified Field Theory' in its title. In its opening paragraph, Einstein wrote: "After incessant search during the last two years, I now believe I have found the true solution" (Pais, Subtle is the Lord, p. 343). The half-dozen papers Einstein had already written on unified field theory were reactions to the ideas of others, such as Eddington, Kaluza and Weyl; it was in this paper that Einstein put forward the first original approach of his own. "His theory rested in major part on the following arithmetical coincidence. In one of the customary ways of describing electromagnetism 6 field quantities are used. The metrical tensor [of general relativity] has a certain symmetry. Remove that symmetry and it will automatically contain not 10 but 16 field quantities. Use 10 combinations of these for gravitation and there will be 6 left over - just the number of field quantities with which to represent electromagnetism" (Hoffmann, Einstein, p. 225). In 1928, Einstein embarked upon a new approach to a unified field theory involving what he called 'distant parallelism.' This was introduced in 'Riemann-Geometrie mit Aufrechterhaltung des Begriffes des Fernparallelismus' and 'Neue Möglichkeit für eine einheitliche Feldtheorie von Gravitation und Elektrizität.' By early 1929 he had solved the main problems involved in writing down field equations for his unified theory and presented his solution in 'Zur einheitlichen Feldtheorie'. "[Einstein] did propose [in this last paper] a set of field equations, but added that 'further investigations will have to show whether [these] will give an interpretation of the physical qualities of space'. His attempt to derive his equations from a variational principle had to be withdrawn. Nevertheless, in 1929 he had 'hardly any doubt' that he was on the right track" (Pais, p. 346). "Within three days, the first printing of the journal offprint [i.e., the commercial separate]-a thousand copies-sold out, and another thousand copies were soon printed. Soon thereafter, Nature's News and Views section published a more accessible account of the work, including a quote by Einstein: 'Now, but only now, we know that the force which moves electrons in their ellipses about the nuclei of atoms is the same force which moves our earth in its annual course about the sun, and is the same force which brings to us the rays of light and heat which make life possible upon this planet.' With Einstein's 50th birthday approaching, his new idea rapidly caught fire, at least in the popular press. The New York Times published almost a dozen articles that year about distant parallelism, rivaling its coverage of the 1919 eclipse results" (Halpern). "In this frenzied, unscientific atmosphere, Einstein's new theory was hailed in the press as an outstanding scientific advance. Yet Einstein had stated in his article that it was still tentative; and soon he found he had to abandon it" (Hoffman, p. 226). Only paper III was present in the collection of presentation offprints of Einstein's son Hans Albert (Christie's 2006), and in Einstein's own collection (Christie's 2008); and no other copies of any of the offprints with "Überreicht vom Verfasser" can be identified on RBH. Similarly, although several copies of each offprint can be found in institutional collections, it is unclear how many are presentation offprints as the library records do not mention "Überreicht vom Verfasser". Provenance: Arnold Sommerfeld (1868-1951) (his ink stamp on the front cover of III-V and characteristic numbering in red pencil on each - 40, 45, 47, 48, 49). "The son of a physician, Sommerfeld was educated at the University of Königsberg. After teaching briefly at the universities of Göttingen, Clausthal, and Aachen he was appointed professor of physics at the University of Münich in 1906. Sommerfeld should have retired in 1936 in favour of his pupil, Werner Heisenberg. Opposition from the Nazi party to Heisenberg's appointment prolonged Sommerfeld's tenure and it was not in fact until late 1939 that he finally retired, to be succeeded not by Heisenberg but by Wilhelm Müller, a Nazi aerodynamicist without a single publication in physics to his credit. Although Sommerfeld and Heisenberg were not Jewish, they were regarded by the Nazis as Jewish sympathizers. Sommerfeld, however, survived the war and returned to his Münich chair in 1945, continuing to work at physics until he di.…

Weil 161. Offprint from S. preuss. Akad. Wiss.

4 °. In: Sitzungsberichte der Preussischen Akademie der Wissenschaften. Jg. 1930 Physikal.-math. Klasse. In 3 OBr. Umschl. angestaubt, lichtrandig, m. Randläsuren u. St. Unaufgeschn. Ex. Poggendorff VI, 648 / Boni 195-197 (Einstein). - Enth. Beitr. z. Mathematik, Medizin, Biologie etc. Sprache: Deutsch 0 gr. …

Offprint from Sitzungsberichte der preussischen Akademie der Wissenschaften (1930). Single sheet (pp. 1-2). 256 x 184 mm. Upper edge a bit creased, light toning, but very good. First edition, offprint issue. One of Einstein's last papers on Riemann metrics and distant parallelism, written the year before he abandonded this approach to constructing a unified field theory. Pais, Subtle is the Lord, p. 347. Weil, Albert Einstein Bibliography, 173.…