‎Einstein‎

‎EINSTEIN A. THE REFRACTIVE INDEX FOR X RAYS.‎

‎Lassen sich Brechungsexponenten der K�rper f�r R�ntgenstrahlen experimentell ermitteln Bemerkung zu E. Gehrckes Notiz "�ber den �ther". 2 Papers.‎

‎Braunschweig Friedr. Vieweg & Sohn 1918. Contemp. full cloth. Spine gilt and with gilt lettering. In: "Verhandlungen der Deutschen Physikalischen Gesellschaft im Jahre 1918." 20. Jahrgang. V280 pp textillustr. Entire volume offered. Einstein's papers: pp. 86-87 and p. 261. Clean and fine. � First printing of the paper in which Einstein provided the first description of the nature of the refractive index for X-rays that it has an imaginary component and showing that phase contrast effects are significant. A century later most x-ray microscopy and nearly all medical imaging remains based on absorption contrast even though phase contrast offers orders of magnitude improvements in contrast and reduced radiation exposure at multi-keV x-ray energies.<br><br>The second paper is Einstein's reply to Gehrcke's paper "�ber den �ther" as printed in the offered volume pp. 165-169.<br><br>Weil: 100 a.104 - Boni: 101.a. 102.<br><br>The volume contains orher importent papers by MAX BORN E. GOLDSTEIN J. PETZOLDT MAX BORN & A. LAND� A. LAND�. hardcover‎

Referenz des Buchhändlers : 47167

‎EINSTEIN A. & W. MAYER.‎

‎Semi-vektoren und Spinoren.‎

‎Berlin 1932. Orig. printed orange wrappers. Back strengthend with matching paper. Fresh copy. Offprint/Sonderabdr. aus "Sitzungsberichten". pp. 1-32. � First edition. Weil No. 186. unknown‎

Referenz des Buchhändlers : 22769

‎EINSTEIN ALBERT.‎

‎�ther und Relativit�ts-Theorie. Rede gehalten am 5. Mai 1920 an der Reichs-Universit�t zu Leiden.‎

‎Berlin Julius Springer 1920. Uncut in orig. printed wrappers. 15 1 pp. Clean and fine near mint condition. � First edition. - Weil: 111. unknown‎

Referenz des Buchhändlers : 38643

‎LORENTZ HA. A. EINSTEIN H. MINKOWSKI. H. A.‎

‎Das Relativit�tsprincip. Eine Sammlung von Abhandlungen. Dritteverb. Aufl.‎

‎Leipzig Berlin 1920. Orig. boards. Back discoloure. 4146 pp. -The corrected third edition of these importent contributions to the theory of relativity. hardcover‎

Referenz des Buchhändlers : 9913

‎EINSTEIN ALBERT.‎

‎Die Kompatibilit�t der Feldgleichungen in der einheitlichen Feldtheorie.‎

‎Berlin Gruyter X Co. 1930. 4to. Orig. orange printed wrappers. Offprint/Sonderausgabe aus Sitzungsberichten. pp. 1-13. � First edition in the rare Offprint having separate printed title and separate pagination. See Weil No. 170 where this is not mentioned.<br>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. unknown‎

Referenz des Buchhändlers : 28365

‎EINSTEIN ALBERT EINSTEIN'S FIRST PUBLICATION.‎

‎Folgerungen aus den Capillarit�tserscheinungen;‎

‎Leipzig Barth 1901. 8vo. Kept in a cloth-box. Extract from "Annalen der Physik. Vierte Folge. Bd. 4." pp. 513-23. � First edition of Einstein's first published scientific paper - he himself called it a "worthless beginner's work" - Weil No. 1 - Honeyman No. 925. hardcover‎

Referenz des Buchhändlers : 29304

‎EINSTEIN ALBERT. EINSTEIN'S SECOND WORK.‎

‎Ueber die thermodynamische Theorie der Potentialdifferenz zwischen Metallen und vollst�ndig dissociirten L�sungen ihrer Salze und �ber eine elektrische Methode zur Erforsachung der Molekularkr�fte;‎

‎Berlin J.A. Barth 1902. Contemp. hcalf. Gilt spine. Some scratches along edges. Stamp on halftitle and title-page. "Annalen der Physik. Vierte Folge. Band 8. Hrsg. von Paul Drude." VIII928 pp. and 7 plates. Einstein paper: pp. 798-814. Internally fine and clean. The entire volume offered. � First editon. - Weil No 2. unknown‎

Referenz des Buchhändlers : 49829

‎EINSTEIN ALBERT. EINSTEINS FOURTH PAPER.‎

‎Eine Theorie der Grundlagen der Thermodynamik;‎

‎Leipzig Johann Ambrosius Barth 1903. Contemp. hcloth. Handwritten paperlabel on spine. In: "Annalen der Physik. Vierte Folge. Band 11. Herausgegeben von Paul Drude.". VIII1144pp. and 6 plates. Entire volume offered. The Einstein paper: pp. 170-187. Faint signs of dampstains in outer margins on a few leaves. � First edition of Einsteins fourth paper. In his paper from 1902 Einstein "says in his introduction that nobody has yet succeeded in deriving the conditions of thermal equilibrium and of the second law of thermodynamics from probability considerations although Maxwell and Boltzmann came near to it. Willard Gibbs is not mentioned. In fact Einstein's paper was written in ignorance of Gibbs paper published 1901. In the present paper Einstein builds the theory on another basis not used by Gibbs namely on the consideration of a single system in course of time later called "Zeit-Gesamtheit" time assembly and proves that this is equivalent to a certain virtual assembly of many systems Gibb's micro-canonical assembly.Einstein at once proceeded to apply his theorems to a case of utmost importance namely to systems of a size suited for demonstrating the reality of molecules and the correctness of the kinetic theory of matter."Walter Alicke. <br><br>First edition of Einsteins fourth paper. In his paper from 1902 Einstein "says in his introduction that nobody has yet succeeded in deriving the conditions of thermal equilibrium and of the second law of thermodynamics from probability considerations although Maxwell and Boltzmann came near to it. Willard Gibbs is not mentioned. In fact Einstein's paper was written in ignorance of Gibbs paper published 1901. In the present paper Einstein builds the theory on another basis not used by Gibbs namely on the consideration of a single system in course of time later called "Zeit-Gesamtheit" time assembly and proves that this is equivalent to a certain virtual assembly of many systems Gibb's micro-canonical assembly.Einstein at once proceeded to apply his theorems to a case of utmost importance namely to systems of a size suited for demonstrating the reality of molecules and the correctness of the kinetic theory of matter."Walter Alicke. - <br><br>Weil No. 4 - Boni No 4. hardcover‎

Referenz des Buchhändlers : 47072

‎EINSTEIN ALBERT. THE FIRST EXPLICIT STATEMENT OF THE ENERGY MASS EQUATION‎

‎�ber die von Relativit�tsprincip geforderte Tr�gheit der Energie.‎

‎Leibzig Johann Ambrosius Barth 1907. 8vo. In contemporary full cloth with gilt lettering to spine. In "Annalen der Physik" Vierte Folge Band 23. Entire volume offered. Ex-libris pasted on to top right corner of pasted down front free end-paper. Light rubbing to extremities a very fine and clean copy not an ex-library copy. Pp.371-384. Entire volume: VIII 1000 pp. 4 plates. � First edition of the first explicit statement of Einstein's landmark energy-mass equation E=mc2.<br><br>Nearly all descriptions of Einstein's scientific work state that the mass-energy equivalence E=mc2 was first formulated in Einstein's 1907 review paper '�ber das Relativit�tsprinzip und die aus demselben gezogenen.' published in 'Jahrbuch der Radioaktivit�t und Elektronik' see Weil no. 21 and Dictionary of Scientific Biography vol. 4 pp.323 for examples. However in his paper '�ber die von Relativit�tsprincip geforderte Tr�gheit der Energie' the offered paper which predates the former mentioned by six months Einstein gave a clear statement of the mass-energy equivalence E=mc2. See Lanczos: The Einstein Decade pp.149-150 and 153 as well as Volume 2 of 'The Collected Papers of Albert Einstein' pp. 428.<br><br>Einstein's first paper regarding the relation E=mc2 is his fourth 1905 paper 'Ist die Tr�gheit eines K�rpers von seinem Energieinhalt abh�ngig'. In this short paper Einstein showed that a body releasing the energy E in the form of radiation will have its mass decreased by E/c2 and concluded that the mass of a body is a measure of its energy content e.g. that all energy has mass. <br><br>The next time Einstein returns to the subject is in his 1906 paper 'Das Prinzip von der Erhaltung der Schwerpunkts Bewegung und die Tr�gheit der Energie.'. Here Einstein concluded that one must either ascribe the inertial mass E/c2 to any form of energy E or else give up the fundamental law mechanics regarding conservation of the motion of the center of gravity. <br><br>Then finally in the 1907 paper '�ber die von Relativit�tsprincip geforderte Tr�gheit der Energie.' the offered paper Einstein makes the decisive step of assuming that all mass has energy. On page 382 Einstein considers the total energy of a moving mass point as the sum of its kinetic energy and its rest energy. In classical mechanics it is most convenient to set the second term to zero but in relativistic mechanics one obtains the simplest expression by setting the rest energy equal to mc2. Einstein then continues to show that this stipulation cannot lead to a contradiction in any relativistic argument. In a footnote on page 382 Einstein states for the first time the equation E=mc2 and mentions that this equation is the expression of the principle of the equivalence of mass and energy - see Volume 2 of 'The Collected Papers of Albert Einstein' pp. 428.<br><br>The volume contains another paper by Einstein "Bemerkungen zu der Notiz von Hrn. Paul Ehrenfest: "Die Translation deformierbarer Elektronen und der Fl�chensatz"" pp.206-208. - Weil No. 18.<br><br>Collected Works Doc. 45. Weil 19. Boni 19. hardcover‎

Referenz des Buchhändlers : 50595

‎EINSTEIN ALBERT. ASSOCIATION COPY.‎

‎Theoretische Atomistik.‎

‎Leipzig Teubner 1925. Lex8vo. Orig. printed wrappers. Small nicks to edges of wrapper. Offprint/ Sonderdruck ""Kultur der Gegenwart. Die Physik. Pp. 281-294. Clean and fine. � First edition - in the scarce offprint version - of the revised text of "Theoretische Atomistik" which was published in 1915 to the first edition of "Kultur der Gegenwart". The paper offered is Einstein's more popular review of relativity.<br><br>Weil:70. - Boni: 69.1. unknown‎

Referenz des Buchhändlers : 46480

‎EINSTEIN ALBERT. THE PHOTOELECTRIC EQUATION.‎

‎Zur Theorie der Lichterzeugung und Lichtsabsorption; withbound: Das princip von der Erhaltung der Schwerpunktsbewegung und die Tr�gheit der Energie; 2 papers.‎

‎Leipzig Johann Ambrosius Barth 1906. Bound together in one contemp. hcloth. Small tears to spine ends. = "Annalen der Physik. Vierte Folge. Band 20. Herausgegeben von Paul Drude." Portrait Paul Drude VIII1048 pp. and 6 plates. Einstein papers: pp. 199-206 and 627-33. Internally fine and clean. The whole volume offered. � Both papers first edition. It was for the papers "Ueber einen die Erzeugung und Verwandlung des Lichtes betreffenden heuristischen Gesichtspunkt" of 1905 and "Zur Theorie der Lichterzeugung. Theory of light emission and absorption the offered item that Einstein was awarded the Nobel Prize in 1921.<br><br>"The quantum theory has affected virtually every branch of physics. Its earliest and one of its most significant developments was Einstein's application of the theory to what is known as the 'photo-electrical effect'.Einstein explained this effext by suggesting that the classical view that light is emitted in the form of continous waves must be abandoned. The photo-electrical effect could be explained only as an example of quantum action where the waves of light or X-rays are emitted in minute particles or bullets. It is he size of the bullet the wave-lenght of the radiation which determines the number of electrons ejected. It was for this and not for the theory of relativity that Einstein was awarded the Nobel Prize in 1921. Einstein's two fundamental papers on this subject are "Ueber einem Erzeugung." 1905 and Zur Theorie der Lichterzeugung the paper offered here" PMM the note to 391. In the second paper Principle of the conservation of the centre of mass motion and the inertia of energy he shows that the conservation of mass is a special application of his energy principle E= Mc2 - Weil: 12 & 13.<br>Among the many papers in this volume we have Max von Laue: Zur Thermodynamik der Inteferenzerscheinungen. pp. 365-378. hardcover‎

Referenz des Buchhändlers : 38794

‎EINSTEIN ALBERT.‎

‎Kinetische Theorie des W�rmegleichgewichtes und den zweiten Hauptsatzes der Thermodynamik;‎

‎Leipzig Ambrosius Barth 1902. Contemp. hcloth. First hinge broken. = "Annalen der Physik. Vierte Folge. Band 9." VIII1344 pp. and 5 plates. The Einstein Paper: pp. 417-435. Internally clean and fine. The whole volume offered. � First edition of Einstein's third paper. - Weil No 3. - The volume contains 2 papers by Max Planck originally published in "Jubelband f�r H.A. Lorentz" und Jubelband f�r J. Bosscha: "Ueber die von einem elliptisch schwingenden Ion emitterte und absorbierte Energie;" und "Ueber die Verteilung der Energie zwischen Aether und Materie;" pp. 619-628 und pp. 629-641. hardcover‎

Referenz des Buchhändlers : 38799

‎EINSTEIN ALBERT.‎

‎�ber die spezielle und die allgemeine Relativit�tstheorie. Gemeinverstaendlich. Mit 3 Figuren.‎

‎Braunschweig Friedr. Vieweg & Sohn 1917. Orig. printed wrappers. Wrappers detached but intact a tear to backstrip no loss. Uncut. IV70 pp. � First edition. - Weil: 90. unknown‎

Referenz des Buchhändlers : 38645

‎EINSTEIN ALBERT. ATOMIC HEAT.‎

‎Die Plancksche Theorie der Strahlung und die Theorie der spezifischen W�rme: Withbound: �ber die G�ltigkeitsgrenze des Satzes vom thermodynamischen Gleichgewicht und �ber die M�glichkeit einer neuen Bestimmung der Elementarquanta; Wirhbound: Berichtigung zu meiner Arbeit: "Die Plancksche Theorie der Strahlung etc.";‎

‎Berlin J.A. Barth 1907. Contemp. hcloth. Light wear to top of spine. "Annalen der Physik. Vierte Folge. Band 22" Engraved portrait of Pierre Curie. VIII1016 pp. and 4 plates. Einstein papers. pp. 180-190 pp. 569-572 and p.800. Internally clean and fine. The whole volume offered. � All papers in first edition. "From 1905 through 1909 Einstein published five major papers on the hypothesis of energy quanta its theoretical implications and its use in the explanation of various phenomena. Among these papers we have his importent paper "Die Plancksche." and in his second paper from 1906d he asserted that Planck's derivation implicitly assumes quantification of the enrgies of charged oscillators. Now in the paper offered he returned to this question showing that if the structure function in phase space he had introduced earlier is assumed to restrict the oscillators to orbits with energies that are integral mul�tiples of 'hv' then the average oscillator energy in a canonical ensemble yealds Planck's law when substituted in eg. The works contains the first systematic introduction of probability factors in the mathematics of Quantum Theory.<br>The second paper represents Einstein's third stage in dealing with brownian motion. He had previous explained the zigzag motion of suspended particles and looked as this penomenon from a more general angle. In the present investigation he extends his reults to all macroscopic parameters by giving a general principle for the calculation of theit fluctuations. Weil: nos 15 1-2 with an asterix a. 16. hardcover‎

Referenz des Buchhändlers : 38828

‎FRIEDMANN ALEXANDER + ALBERT EINSTEIN. THE CURVATURE OF SPACE‎

‎�ber die Kr�mmung des Raumes �ber die M�glichkeit einer Welt mit konstanter negativer Kr�mmung des Raumes Friedman Bemerkung zu der Arbeit von A. Friedmann "�ber die Kr�mmung des Raumes" Notiz zu der Arbeit von A. Friedmann "�ber die Kr�mmung des Raumes Einstein.‎

‎Berlin Julius Springer 1922-24. 8vo. 4 contemporary half cloth binding: two in uniform half green cloth and two en uniform grey/blue half cloth. In "Zeitschrift f�r Physik" Bd. 10 11 16 & 21. Entire volumes offered. All volumes with stamp to title page and front free end paper otherwise a fine and clean set. Friedmann: Bd. 10: Pp. 377-386; Bd. 21: P.p. 326-332. Einstein: Bd. 11:P. 326; Bd. 16: P. 228. � First printing of these four landmark paper in which Friedman "introduced into cosmology two concepts of revolutionary importance the age og the world and the creation of the world" Kragh Cosmology and Controversy. <br><br>"In his paper of 1922 Friedmann offered a complete analysis of the solutions of Einstein's cosmological field equations that went beyond the earlier solutions of Einstein and de Sitter as it also included nonstatic solutions. Friedmann did so clearly and explicitly: "The purpose of this note" he wrote "is firstly to show that the cylindrical Einsteinand spherical de Sitter worlds are special cases of more general assumptions and secondly to demonstrate the possibility of a world in which the curvature of space is independent of the three spatial coordinates but does on time".Ibid.<br><br>In '�ber die Kr�mmung des Raumes' Friedman derived the non-stationary solutions to Einstein's field equations. Einstein quickly responded in a short comment 'Bemerkung' in which he expressed his suspicion of such a model of the Universe and apparently pointed out an error in Friedman's calculations. However Friedman now wrote a letter to Einstein in which he enclosed his full calculations. Shortly after this Einstein submitted a short notice Notiz in which he admitted that he himself had performed a calculation error and that Friedman's solutions which shed new light on the matter were valid. Friedman's expanding universe model was corroborated by Edwin Hubble's red-shift observations in 1929. <br><br>In '�ber die M�glichkeit einer Welt mit konstanter negativer Kr�mmung des Raumes' Friedman derived the Friedman-equations and demonstrated that he had command of all three Friedman-models describing positive zero and negative curvature respectively nearly a decade before the independent discoveries of the same models by Lema�tre Robertson and Walker. <br>"Friedmann made a valuable contribution to Einstein's general theory of relativity. As always his interest was not limited simply to familiarizing himself with this new field of science but led to his own remarkable investigations. Friedmann's work on the theory of relativity dealt with one of its most difficult questions the cosmological problem. In his paper "�ber die Kr�mmung des Raumes" 1922 he outlined the fundamental ideas of his cosmology: the supposition concerning the homogeneity of the distribution of matter in space and the consequent homogence of "world" time for which at any moment in time the metrics of space will be identical at all points and in all directions. This theory is especially important because it leads to a sufficiently correct explanation of the fundamental phenomenon known as the "red shift." This solution of the Einstein field equations obtained from the above propositions is the model for any homogeneous and isotropic cosmological theory. It is interesting to note that Einstein thought that the cosmological solution to the equations of a field had to be static and had to lead to a closed model of the universe. Friedmann discarded both conditions and arrived at an independent solution. Einstein welcomed Friedmann's results because they showed the dispensability of the ad hoc cosmological term Einstein had been forced to introduce into the basic field equation of general relativity". DSB. <br><br>Weil 122 & 130. hardcover‎

Referenz des Buchhändlers : 49429

‎EINSTEIN ALBERT.‎

‎Mein Weltbild.‎

‎Amsterdam Querido Verlag 1934. Orig. full cloth. Light wear to the gilt lettering on spine. 269 pp. A few brownspots. � First edition. hardcover‎

Referenz des Buchhändlers : 33137

‎EINSTEIN ALBERT. FIRST PRINTING OF E=mc2‎

‎�ber die M�glichkeit einer neuen Pr�fung des Relativit�tsprinzips; withbound: Bemerkungen zu der Notiz von Hrn. Paul Ehrenfest: "Die Translation deformierbarer Elektronen und der Fl�chensatz"; withbound: �ber die vom Relativit�tsprinzip geforderte Tr�gheit der Energie; 3 Papers.‎

‎Leipzig J.A. Barth 1907. Contep. hcloth. Both hinges with a tear at upper part. "Annalen der Physik Vierte Folge. Band 23. Herausgegeben von W.Wien und M. Planck" VIII1000 pp. and 4 plates. Einstein's papers pp. 197-98 a. 206-209 a. 371-384. Internally fine and clean. The whole volume offered. � All 3 papers in first edition. - The first paper "New possibility of testing the relativity principle" deals with the shift of canal rays in the Dobbler effect as a possible confirmation of the Principle of Relativity - the confirmation became actual only in 1938 when new improved instrumentation made it possible. - The second paper "remarks concerning Paul Ehrenfest's note: 'Translation of the deformable electron and the momentum law' Einstein gives his answer by relating it to his Theory of Relativity. - The third paper "The inertia of energy as demanded by the principle of relativity" which is a importen paper as it i is the first to state E=mc2 in its general form. general form. This new relation which was adumbrated already in his paper of 1906 Das prinzip von der Erhaltung der Schwerpunktsbewegung brings about the complete unification of mass and energy into a single concept. In natural units which make c=1 we have E=m i.e. mass and energy are one and the same quantity. Every form of energy also has a mass value just as every mass represents a definite amount of energy. - Weil Nos 1718 a. 19 hardcover‎

Referenz des Buchhändlers : 38817

‎EINSTEIN ALBERT.‎

‎Newtons Mechanik und ihr Einsfluss auf die Gestaltung der theoretischen Physik.‎

‎Berlin Julius Springer 1927. 4to. Orig. printed wrappers. In "Die Naturwissenschaften" Heft 12 F�nfzehnter Jahrg. Seite 273-296 textillustrations. Einstein's paper pp. 273-276. With one plate portrait of Newton. Clean and fine. � First appearance of Einstein's Newton-paper which was later included in "Mein Weltbild" and its translation in "In the World as I see it"- Weil: 158 - Boni: 166.<br>The issue contaions also a first-printing by Max von Laue "Aus Newtons Optik" pp. 276-280 textillustr. unknown‎

Referenz des Buchhändlers : 46484

‎EINSTEIN A. & N. ROSEN. THE SILBERSTEIN EINSTEIN CONTROVERSY.‎

‎Two-Body Problem in General Relativity Theory.‎

‎Lancaster American Physical Society 1936. 4to. In: "The Physical Review" Vol. 49 Second Series. X971 pp. Entire volume offered. Einstein & Rosen's paper: pp. 404-405. � First printing of Einstein and Rosen's answer to Silberstein's critique of Einstein's Theory of Relativity .<br><br>"Ludwik Silberstein who initially was a supporter of the special theory objected at different occasions against general relativity. In 1920 he argued that the deflection of light by the sun as observed by Arthur Eddington et al. 1919 is not necessarily a confirmation of general relativity but may also be explained by the Stokes-Planck theory of complete aether drag. However such models are in contradiction with the aberration of light and other experiments see "Alternative theories". And in 1935 Silberstein claimed to have found a contradiction in the Two-body problem in general relativity. However also this claim was refuted by Einstein and Rosen 1935 in the paper offered."Wikipedia. unknown‎

Referenz des Buchhändlers : 47073

‎LANCZOS KORNEL. THE EXACT SOLUTION TO THE EINSTEIN FIELD EQUATION‎

‎�ber eine station�re Kosmologie im Sinne der Einsteinschen Gravitationtheorie.‎

‎Berlin Julius Springer 1924. 8vo. Bound in contemporary half cloth. In: "Zeitschrift f�r Physik" 21-22 band 1924. Find and clean. Pp. 73-110. Offered volume: Pp. 382 V 416. � First printing of Lanczos exceelingly important paper in which he discovered an exact solution of the Einstein field equation which represents a cylindrically symmetric rigidly rotating configuration of dust particles. This was later rediscovered by Willem Jacob van Stockum and is known today as the van Stockum dust. It is one of the simplest known exact solutions in general relativity and regarded as an important example in part because it exhibits closed timelike curves. <br><br>Lanczos served as assistant to Albert Einstein during the period of 1928-29. hardcover‎

Referenz des Buchhändlers : 47378

‎CARTAN ELIE. THE EINSTEIN CARTAN THEORY ECT OF GRAVITATION.‎

‎Sur une d�finition g�om�trique du tenseur d'�nergie d'Einstein. Sur une g�n�ralisation de la notion de courbure de Riemann et les espaces � torsion. Sur les espaces g�n�ralis�s et la th�orie de la Relativit�. Sur les espaces conformes g�n�ralis�s et l'Univers optique. Sur les �quations de structure des espaces g�n�ralis�s et l'�xpression analytique du tenseur d'Rinstein. 5 papers.‎

‎Paris Gauthier-Villars 1922. 4to. Bound in 2 uniform full cloth but of slightly different sizes. Paperlabels pasted to lower part of spines. A faint stamp to titlepage and some of the issues. In "Comptes Rendus Hebdomadaires des S�ances de L'Academie des Sciences" Tome 174. 18151 pp. Entire volume offered. Cartan's papers: pp.437-439 593-595 734-737 857-60 1104-1107. � First edition of these papers in which Cartan intruced the concept of "Torsion" the main inspiration for Einstein in his searce for a unified field theory. The ECT of gravity is a modification of the General relativity Theory<br><br>"The Einstein-Cartan theory also known as the Einstein-Cartan-Sciama-Kibble theory is a classical theory of gravitation similar to general relativity but relaxing the assumption that the affine connection has vanishing antisymmetric part torsion tensor so that the torsion can be coupled to the intrinsic angular momentum spin of matter much in the same way in which the curvature is coupled to the energy and momentum of matter. In fact the spin of matter in curved spacetime requires that torsion is not constrained to be zero but is a variable in the principle of stationary action. Regarding the metric and torsion tensors as independent variables gives the correct generalization of the conservation law for the total orbital plus intrinsic angular momentum to the presence of the gravitational field. The theory was first proposed by �lie Cartan in 1922 and expounded in the following few years. Dennis Sciama and Tom Kibble independently revisited the theory in the 1960s and an important review was published in 1976. Albert Einstein became affiliated with the theory in 1928 during his unsuccessful attempt to match torsion to the electromagnetic field tensor as part of a unified field theory. This line of thought led him to the related but different theory of teleparallelism." Wikipedia. hardcover‎

Referenz des Buchhändlers : 48912

‎EINSTEIN ALBERT.‎

‎Zum Quantensatz von Somerfeld und Epstein;‎

‎Braunschweig Vieweg & Sohn 1917. Contemp. hcalf. Spine worn and covers detached. Internally clean and fine. "Verhandlungen der Deutschen Physikalischen Gesellschaft im Jahre 1917. Neunzehnter Jahrgang. Herausgegeben von Karl Scheel." V372 pp. Einstein paper: pp. 82-92. The whole volume offered. � First edition. Containing also Max von Laue: "Bandenspektrum und molekulare Quantendrehungen; pp.130-38. and "Ein Versagen der klassischen Optik: pp. 19-21. - Weil No 94. unknown‎

Referenz des Buchhändlers : 38838

‎EINSTEIN ALBERT UND NIELS BOHR.‎

‎Die Ursache der M�anderbildung der Flussl�ufe und des sogenannten Baerschen gesetzes. Withbound: Vorschlag zu einem die Natur des elementaren Strahlungsemissionsprocesses betreffenden Experiment. Withbound N. Bohr: Atomtheorie und Mechanik.‎

‎Berlin Julius Springer 1926. 4to. Contemp. hcloth. Some wear to binding. "Die Naturwisenschaften. Hrsg. von Arnold Berliner. Vierzehnter Jahrgang". XXVIII128644 pp. Einstein papers: pp. 223-224 and 300-301. Bohr paper pp. 1-10. The whole volume offred. � All 3 papers in first edition. - Weil Nos 150;154. hardcover‎

Referenz des Buchhändlers : 38843

‎EINSTEIN ALBERT. THE FIRST EXPLICIT STATEMENT OF THE ENERGY MASS EQUATION !!‎

‎�ber die von Relativit�tsprincip geforderte Tr�gheit der Energie. On the Inertia of Energy Required by the Relativity Principle.‎

‎Leibzig Johann Ambrosius Barth 1907. 8vo. Contemp. hcalf. Spine gilt and with gilt lettering. Slightly rubbed and light wear to spineends. In "Annalen der Physik" Vierte Folge Band 23. VIII1000 pp. a. 4 plates. The entire volume offered. Einstein's paper: pp.371-384. Stamps on titlepage Allgemeine Electricit�ts-Gesellschaft a. AEG Forschungsinstitut. Internally clean. � First edition of the first explicit statement of Einstein's energy-mass equation E=mc2.<br><br>Nearly all descriptions of Einstein's scientific work state that the mass-energy equivalence E=mc2 was first formulated in Einstein's 1907 review paper '�ber das Relativit�tsprinzip und die aus demselben gezogenen.' published in 'Jahrbuch der Radioaktivit�t und Elektronik' see Weil no. 21 and Dictionary of Scientific Biography vol. 4 pp.323 for examples. However in his paper '�ber die von Relativit�tsprincip geforderte Tr�gheit der Energie' the offered paper which predates the former mentioned by six months Einstein gave a clear statement of the mass-energy equivalence E=mc2. See Lanczos: The Einstein Decade pp.149-150 and 153 as well as Volume 2 of 'The Collected Papers of Albert Einstein' pp. 428.<br><br>Einstein's first paper regarding the relation E=mc2 is his fourth 1905 paper 'Ist die Tr�gheit eines K�rpers von seinem Energieinhalt abh�ngig'. In this short paper Einstein showed that a body releasing the energy E in the form of radiation will have its mass decreased by E/c2 and concluded that the mass of a body is a measure of its energy content e.g. that all energy has mass. <br><br>The next time Einstein returns to the subject is in his 1906 paper 'Das Prinzip von der Erhaltung der Schwerpunkts Bewegung und die Tr�gheit der Energie.'. Here Einstein concluded that one must either ascribe the inertial mass E/c2 to any form of energy E or else give up the fundamental law mechanics regarding conservation of the motion of the center of gravity. <br><br>Then finally in the 1907 paper '�ber die von Relativit�tsprincip geforderte Tr�gheit der Energie.' the offered paper Einstein makes the decisive step of assuming that all mass has energy. On page 382 Einstein considers the total energy of a moving mass point as the sum of its kinetic energy and its rest energy. In classical mechanics it is most convenient to set the second term to zero but in relativistic mechanics one obtains the simplest expression by setting the rest energy equal to mc2. Einstein then continues to show that this stipulation cannot lead to a contradiction in any relativistic argument. In a footnote on page 382 Einstein states for the first time the equation E=mc2 and mentions that this equation is the expression of the principle of the equivalence of mass and energy - see Volume 2 of 'The Collected Papers of Albert Einstein' pp. 428.<br><br>The volume contains another paper by Einstein "Bemerkungen zu der Notiz von Hrn. Paul Ehrenfest: "Die Translation deformierbarer Elektronen und der Fl�chensatz"" pp.206-208. - Weil No. 18. Further with 2 importent papers by Max v. Laue.<br><br>Collected Works Doc. 45. Weil 19. Boni 19. unknown‎

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‎EINSTEIN ALBERT. PIONEERWORK IN GLOBULAR CLUSTER DYNAMICS‎

‎Eine einfache Anwendung des Newtonschen Gravitationsgesetzes auf die Kugelf�rmigen Sternhaufen. A Simple Application of the Newtonian Law of Gravitation to Globular Star Clusters‎

‎Berlin Julius Springer 1921. Lex8vo. Orig. printed wrappers. Offprint/Sonderdruck from "Der Festschrift der Kaiser Wilhelm Gesellschaft zur F�rderung der Wissenschaften zu ihrem 10j�hrigen Jubil�um". Pp. 50-52. A small tear to right margin 1 cm otherwise fine and clean. At foot frontwrapper "Nicht im Handel". � First edition the offprint issue of this pioneerwork in globular cluster physics.<br>"In his paper on M13 Einstein 1921 concluded that the non-luminous mass contributes no higher order of magnitude to the total mass than does the luminous mass.To my knowledge this has been Einstein's only contact with globular clusters. As in other issues his claim still holds."Tom Richtler.<br><br>Weil:117 - Boni:123. unknown‎

Referenz des Buchhändlers : 46469