The general theory (9 resultados)

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

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

Hard Back. Condición: Good Clean Cond. No Dust Jacket. Hardback : hard cover edition in good or better condition, some slight wear to edges, as normal for age of book. Overall good copy of this title. Excellent read. A good book to enjoy and keep on hand. Or would make a great gift for the fan / reader in your life. Dark cover shows very slight fade. Please send us a note if you have any questions. Thank you. FullThis Book is a Practical Guide for Students, Laymen, or Enthusiasts, Covering Theory, History, Terminology and General Information. Convenient Handbook for Reference and Self Study. Provides an in Depth Selection of Topics and Review, Written in Clea (ilustrador). SIGNED & INSCRIBED By Author. Book. …

Paperback. Condición: Good. Einstein?s own accessible explanation of his theories, in good condition.

Hardcover. Condición: Fine. ".one of the building stones of the theory of general relativity"--Complete DSB online EOTVOS, Baron von Roland. "Untersuchungen über Gravitation und Erdmagnetismus" in Annalen der Physik, Leipzig, Johann Ambrosius Barth, 1896, series III, volume 59. This is the entire volume offered, viii, 808pp, 8 plates, with the Eotvos on pp 354-400, with large and very finely drawn text illustration (mostly of the instrumentation). The volume has been completely rebound in new though contemporary-appearing decorated paper boards, with hand-lettered (?) paper spine labels. Beautiful job. Provenance: with the rubber stamp "Wlad Natansona" [Library/collection] of (Professor) Wladysaw Natanson (1864-1937). ("Wladyslaw Natanson (1864-1937), was head of Theoretical Physics at Kraków University from 1899 to 1935.and published a series of papers on thermodynamically irreversible processes, gaining him recognition in the rapidly growing field. He was the first to consider the distinguishability of photons in the statistical analysis of elementary processes."Wikipedia) [++] "The achievements of Eotvos in the use of his instrument are threefold. By developing the complete theory of the Eotvos balance, he was able to push its sensitivity to such a point that it took decades to devise methods for exceeding his precision. It is only proper to mention that the high degree of precision he achieved was not due solely to the design of the instrument but depended also on the unparalleled skill he displayed in using it. The other two accomplishments encompassed the clear recognition of the very important applications of the balance: geophysical exploration and the equivalence of gravitational and inertial mass. In both cases the recognition was followed by intense work proving his insight.The second extremely important application of the Eotvos balance involved a predetermination of the rate of gravitational acceleration for different bodies. It had been known from earlier work that all bodies fall with the same acceleration (in a vacuum), but the best previous determinations yielded only a limited accuracy. In response to a prize announcement by the University of Gottingen, Eotvos and his collaborators followed up his early measurements on this subject. The new measurements provided not merely a more accurate proof of a principle believed right until then, but much more: his results, proving that gravitational mass and inertial mass are equivalent, the possible deviation being about five parts in 109, became one of the building stones of the theory of general relativity. The experiment proves the weak form of the principle of equivalence, which states that the trajectory of a test particle, under the influence of gravitational fields only, depends only on its initial position and velocity, not on its mass and nature. Later confirmation of his results (during the last fifty years) reduced the possible deviation from perfect equivalence by a factor of 1,000. Late in life Eotvos became interested in the variation of the gravitational acceleration caused by the relative motion of a body with respect to the earth. The experimental proof of this effect was the subject of two posthumous papers."--Complete DSB online.…

4to. 1 page. Einstein on the value of relativity for philosophy. Einstein writes to Hans Reichenbach, the philosopher of science and an influential expositor of Relativity. In part (translation): "I am really very pleased that you want to dedicate your excellent brochure to me, but even more so that you give me such high marks as a lecturer and thinker. The value of the th.[eory] of rel.[ativity] for philosophy seems to me to be that it exposed the dubiousness of certain concepts that even in philosophy were recognized as small change. Concepts are simply empty when they stop being firmly linked to experiences. They resemble upstarts who are ashamed of their origins and want to disown them." The letter was published in the Collected Papers of Albert Einstein, vol 10, doc 66, pp 323-324 (CPAE Translation, vol 10, doc 66, p 201). Slightly uneven toning, a few spots in upper margin, two-hole punch at left margin, folding creases.…

Leipzig, Barth, 1907. No wrappers. Extracted from "Annalen der Physik", Vierte Folge, Bd. 23. Pp. 989-990 a. pp. 991-996. The leaves is punched in inner margins after cords. Fine and clean. First edition of Laue's importent paper in which he gives an experimental proof of the non-addition and non-subtraction phenomena in respect of the velocity of light. - Laue was awarded the Nobel Prize in 1914."Einstein?s special theory of relativity dispensed with the addition or subtraction of the velocities, hitherto assumed to be self-evident, and applied instead a special "addition theorem." In 1907 Laue demonstrated that this theorem readily yields Fizeau?s formula with the previously enigmatic Fresnel drag coefficient: u = c/n ± v(1 - 1/n2). Laue thereby furnished Einstein?s theory with an important experimental proof, which, along with the Michelson-Morley experiment and arguments from group theory, contributed to early acceptance of the theory. Having thus proved himself an expert in relativity theory, in 1910 Laue wrote the first monograph on the subject. He expanded it in 1919 with a second volume on the general theory of relativity" the work went through several editions."(DSB).…

4to. 2 pp. Punch holes. On his personal letterhead. Einstein writes to Reichenbach (1891-1953), a colleague and important expositor of Relativity, to suggest to him a clearer way of explaining one aspect of his theory. He opens the letter by saying (in translation): "I think the logical presentation that you give of my theory is indeed possible, but it's not the simplest one." After providing a list of four possibilities for "increasing specialization regarding the distant comparison of vectors" he comments: "Of course one can also start with an affine connection and specialize either by introducing a metric or by introducing integrability conditions; i.e. do it the way you did. But this is less simple, less natural." He goes on to assert that "[t]he naturalness of the field of structure envisaged by me seems indisputable to me. I will only know in a few months whether this construction contains deeper traits of reality; for the problems needed to be solved to make this decision are not at all easy." The letter ends with a postscript in Einstein's hand, inviting Reichenbach and his wife to tea, noting "Schrödinger is supposed to come as well.".…

(Paris, Imprimerie de Bachelier), 1843. 4to. No wrappers as extracted from "Journal de Mathématiques pures et appliquées.Publié par Joseph Liouville", tome VIII. Pp. 273-360. Clean and fine. First appearance of Le Verrier's provisional theory on the motion of Mercury, his studies of which eventually did much to demonstrate the validity of Einstein's Theory of Relativity. The planetary orbits should agree with the predictions of the General Theory of relativity, but as Einstein pointed out in his "Erklärung der Perihelbewegung des Merkurs aus der allgemeinen Relativitätstheorie" from 1915, the divergences predicted were too small to be observed, except in the case of the nearest planet Mercury, where the perihelion advance, according to the formula, reaches the value of 43" per 100 years, being in full agreement with the calculations of Le Verrier, who found this unexplained rest in the perihelion advance of Mercury per century, if the perturbations due to the other planets are deduced.- Einstein tells in a letter to a friend that for several days he was in a 'state of delirious joy' by this wonderful astronomical confirmation of his theory."Le Verrier first began to study Mercury on the suggestion of Arago in 1840. Astronomers realized that Mercury's perihelion (the point at which the orbit of a planet is closest to the sun) advanced along its orbit at a rate of 566 seconds per century. Le Verrier calculated that, even when taking into account the forces exerted by other planets in the solar system, there still existed a discrepancy between calculation and observation. Le Verrier's accurate calculations showed that the planet's perihelion.did indeed advance forty seconds of an arc per century more than could be accounted for by Newton's theory of gravitation, even after the minor pertubing effects of the other planets had been allowed for." (Asimov). - Le verrier published these findings in the present work, carefully as to the mass of the planet, comparison with other orbits of planets and their perihelia. At the time, Le Verrier put down the discrepancy to mis-observation or mis-calculation.- Sparrow, Milestones of Science No. 133.…