Einstein, AlbertABAA
215 résultats
1930réf. 37422Berlin: Akad. Wiss 1930. Weil 170. Offprint from S. preuss. Akad. Wiss. Akad. Wiss unknown books
1917réf. 19286Leipzig: S. Hirzel 1917. FIRST EDITION. Contemporary half cloth and marbled boards preserved in a morocco slipcase. An excellent clean copy. First edition of this classic work on the quantum theory of radiation by Einstein in which he predicts the existence of the phenomenon of stimulated emission of radiation. He here analyzes the properties of photons and demonsrtrtes that Planck’s law is directly deducible from quantum theory and the concept of transition probabilities. Four decades later MASER and LASER devices are operated to prove him right. Boni 95; Weil 91. S. Hirzel unknown books
1908réf. 2507Leipzig: S. Hirzel 1908. First edition. original wrappers. Very Good. THE BIRTH OF GENERAL RELATIVITY: FIRST PRINTING IN RARE ORIGINAL WRAPPERS OF ONE ONE EINSTEIN'S MOST IMPORTANT PAPERS; containing the beginning of general relativity the derivations of the equivalence principle gravitational redshift and the gravitational bending of light. "Einstein's road to general relativity began in November 1907 when he was struggling against a deadline to finish an article for a science yearbook explaining his special theory of relativity. Two limitations of that theory still bothered him: it applied only to uniform constant-velocity motion. and it did not incorporate Newton's theory of gravity. "'I was sitting in a chair in the patent office at Bern when all of a sudden a thought occurred to me' he recalled. 'If a person falls freely he will not feel his own weight.' That realization which 'startled' him launched him on an arduous eight-year effort to generalize his special theory of relativity and 'impelled me toward a theory of gravitation.' Later he would call it 'the happiest though in my life.' "The tale of the falling man has become an iconic one and in some accounts it actually involves a painter who fell from the roof of an apartment building near the patent office. Einstein refined his thought experiment so that the falling man was in an enclosed chamber such as an elevator in free fall above the earth. In this falling chamber at least until it crashed the man would feel weightless. Any objects he emptied from his pocket and let loose would float alongside him. "Looking at it another way Einstein imagined a man in an enclosed chamber floating in deep space 'far removed from stars and other appreciable masses.' He would experience the same perceptions of weightlessness. 'Gravitation naturally does not exist for this observer. He must fasten himself with strings to the floor otherwise the slightest impact against the floor will cause him to rise slowly towards the ceiling.' "Then Einstein imagined that a rope was hooked onto the roof of the chamber and pulled up with a constant force. 'The chamber together with the observer then begin to move "upwards" with a uniformly accelerated motion.' The man inside will feel himself pressed to the floor. 'He is then standing in the chest in exactly the same way as anyone stands in a room of a house on our earth. The man in the chamber will come to the conclusion that he and the chest are in a gravitational field. Just then however he discovers the hook in the middle of the lid of the chest and the rope which is attached to it and he consequently comes to the conclusion that the chamber is suspended at rest in the gravitational field.' Einstein observed that inertial mass always equals gravitational mass and through his thought experiments concluded that "From this correspondence it follows that it is impossible to discover by experiment whether a given system of coordinates is accelerated or whether. the observed effects are due to a gravitational field." "Einstein called this 'the equivalence principle.' The local effects of gravity and of acceleration are equivalent. "In 1907 working against the deadline imposed by the Yearbook of Radioactivity and Electronics Einstein tacked on a fifth section to his article on relativity that sketched out his new ideas. He also came up with many predictions that could be tested including that light should be bent by gravity and that the wavelength of light emitted from a source with a large mass such as the sun should increase slightly in what has become known as the gravitational redshift. "It would take Einstein another eight years until November 1915 to work out the fundamentals of this theory and find the math to express it. Then it would take another four years before the most vivid of his predictions the extent to which gravity would bend light was verified by dramatic observations. But at least Einstein now had a vision one that started him on the road toward one of the most elegant and impressive achievements in the history of physics: the general theory of relativity" Isaacson Einstein 145-49. Weil in his bibliography also notes that "On p.443 are probably the first explicit statements both of the equivalence of inertial and gravitational mass and of the equation for mass in terms of energy now regarded as the theoretical basis for the release of atomic energy." Weil 21. Although Einstein submitted the paper on 4 December 1907 it wasn't published until the January 22 issue of the Jarbuch. Note: There was a very short "Correction" in a subsequent issue not included here. IN: Jahrbuch der Radioactivität under Electronik Vierter Band - 4. Heft No. 16 pp. 411-462. Leipzig: S. Hirzel 1908. Octavo original wrappers; handsome custom box. Light wear to wrappers and split to spine; text fine with Einstein paper largely unopened. AN EXTREMELY RARE COPY IN ORIGINAL WRAPPERS OF ONE OF EINSTEIN'S MOST IMPORTANT PAPERS. S. Hirzel unknown books
1911réf. 50424Leipzig: Johann Ambrosius Barth 1911. The Genesis of General Relativity Einstein Albert 1879-1955. 1 Elementare betrachtungen über die thermische molekularbewengung in festen Körpern. In Annalen der Physik 35 9: 679-94 pp. Weil 42. 2 Über den Einfluß der Schwerkraft auf die Ausbreitung des lichtes. In Annalen der Physik 35 10: 898-908 pp. Weil 43. Red cloth gilt spine lettering. Figs. Text-illust. 214 x 140 mm. Whole volume: viii 1040 pp. 6 plates 3 b/w silver photos 1 colorized 2 folding. Very good. Approximate English translations of titles: 1 "Elementary considerations about thermal molecular motion in solid bodies" and 2 "On the influence of gravity on the propagation of light." "Einstein returns to his thoughts on gravitation and discusses his ideas on the static gravitational field no. 1 above advancing the "half-shift" prediction of the deflection of light by a massive body such as the Sun. In his early papers on the subject . . . he used two important features: the principle of equivalence and the role of the speed of light. In this paper he takes a broader perspective saying that if a light beam is bent in an accelerating frame of reference then if the theory is correct it must also be besnt by gravity by exactly the equivalent amount." Calaprice An Einstein Encyclopedia. "An important conclusion of this paper is that the velocity of light in a gravitational field is a function of the place. The equation: c = c01 / c2 signifies that there exists a relationship between the velocity of light and the gravitational potential; the latter influences the first." Weinstein Einstein's 1912-1913 struggles with Gravitation Theory: Importance of Static Gravitational Fields Theory. "Here no. 2 above Einstein continues the work he had begun in 1907 on the specific heat of solids where the heat agitation of solids was reduced to a monochromatic oscillation of the atom and the specific heat was determined based on the quantum treatment of an oscillator in a radiation field. He explains the discrepencies between his formula and the measurements at low temperatures" Calaprice An Einstein Encyclopedia. Weil's Einstein Bibliography nos. 42 and 43. Boni's Einstein Checklist nos. 38 39. . Johann Ambrosius Barth unknown books
1907réf. 50420Leipzig: Johann Ambrosius Barth 1907. Einstein explicitly establishes E=mc2. Einstein Albert 1879-1955. 1 Über die Möglichkeit einer neuen Prüfung des Relativitätsprinzips. In Annalen der Physik 23 6: pp. 197-8. 2 Bemerkungen zu der Notiz von Hrn. Paul Ehrenfest: "Die translation deformierbarer Elektronen und der Flächensatz." In Annalen der Physik 23 6: pp. 206-8. 3 Über die vom relativitätsprinzip geforderte Trägheit der Energie. In Annalen der Physik 23 7: pp. 371-384. 8vo. Red cloth gilt lettering on spine. 214 x 140 mm. Whole volume: viii 1000 pp. 4 plates numbered Taf. I - IV. Tafs. I II and IV are folding Taf. III is b/w silver photograph tipped to sheet. Foot of the spine is repaired. Very good. Approximate English translations of titles: 1 "On the possibility of a new test of the principle of relativity." 2 "Remarks on Mr. Paul Ehrenfest's note: 'The translation of deformable electrons and the surface theorem.'" 3 "On the inertia of energy required by the principle of relativity." In "On the inertia of energy required by the relativity principle" May 1907 "Using rather than m V rather than c and 0 rather than E0 Einstein wrote his famous equation for the first time as V2= 0 and he did it in a footnote. At the end of that paper he introduced the symbol E0 to denote energy in the rest frame and wrote the famous expression again this time as =E0/V2." -Eugene Hecht How Einstein confirmed E0 = mc2 In the third paper Einstein explicitly establishes his famous equation E=mc2 although with different symbols. In this paper Einstein discussed the relationship between inertial mass and energy arguing for their complete equivalence namely that every mass has an equivalent energy just as every form of energy has an equivalent mass. This relation says that a photon can convert for the equivalence of mass and energy his celebrated equation E = mc2 Calaprice The Einstein Almanac. Weil's Einstein Bibliography nos. 17 18 and 19 respectively. Boni's Einstein Checklist nos. 17 18 and 19 respectively. . Johann Ambrosius Barth unknown books
1917réf. 6547Braunschweig: Friedrich Vieweg 1917. Ninth printing. Acceptable. 23 cm; iv. 79 pages. Three figures in text along with numerous equations. In original printed wraps. Acceptable only with paper peeling from the spine and sewing tender. Paper cover is completely detached in front and hanging by a thread in back. The pages are yellowed. There is an ownership autograph of one E. Bodländer. That said a clean unmarked copy in original state. The original German edition of Einstein's epoch-making "On the Special and General Theory of Relativity. Friedrich Vieweg paperback books
1921réf. 433161921. Offprint from Sitzungsberichte der preussischen Akademie der Wissenschaften 1921. Single sheet pp. 882-883. 256 x 184 mm. Minor marginal tears one corner chipped but very good. First ediiton offprint issue. "Since after 1917 Einstein firmly believed that light-quanta were here to stay it is not surprising that he would look for new ways in which the existence of photons might lead to observable devations from the classical picture. In this he did not succeed. At one point in 1921 he thought he had found a new quantum criterion published in the present paper but it soon turned out to be a false lead" Pais Subtle is the Lord pp. 412-413. Weil Albert Einstein Bibliography 118. unknown books
1906réf. 432891906. Einstein Albert 1879-1955. Über eine Methode zur Bestimmung des Verhältnisses der transversalen und longitudinalen Masse des Elektrons. Offprint from Annalen der Physik 21 1906. 583-586pp. 223 x 145 mm. Original printed wrappers chipped spine splitting minor spotting. Light toning but very good. First Edition Rare Offprint Issue. In his landmark 1905 paper on special relativity Einstein used the velocity-dependent concepts of transverse and longitudinal mass for the moving electron these terms have now been replaced with the concept of relativistic mass first defined by Lewis and Tolman in 1909. In the present paper Einstein proposed an experimental method for determining the ratio of the transverse to the longitudinal mass and invited experimentalists to verify his special theory of relativity. Einstein later abandoned velocity-dependent mass concepts stating in 1948 that "it is better to introduce no other mass concept than the 'rest mass' m" quoted in L. B. Okun "The concept of mass" Physics Today 1989: 31-36. Lavenda A New Perspective on Relativity pp. 7-8. Weil Albert Einstein Bibliography 14. . unknown books
1910réf. 50336Leipzig: Johann Ambrosius Barth 1910. Einstein Albert 1879-1955. 1 Uber einen Satz der Wahrscheinlichkeitsrechnung und seine Anwendung in der Strahlungstheorie with L. Hopf. pp. 1096-1104. Weil 34 Boni 29. 2 Statistiche Untersuchung der Bewegung eines Resonators in einem Strahlungsfeld with L. Hopf. pp. 1105-1115. Weil 35 Boni 30. 3 Theorie der Opaleszens von homogenen Flüssigkeiten und Flüssigkeitsgemischen in der Nähe des kritischen Zustandes. pp. 1275-1298. Weil 36. In Annalen der Physik und Chemie 33. Red cloth with gilt lettering on the spine. Whole volume: viii 1584 pp. 6 plates. Text-figs. 210 x 130 mm. Very good copy. Approximate English translations of titles and brief explanations of papers: 1 "On a theorem of probability calculus and its application in the radiation theory." "Einstein and Hopf wrote this paper to show that the failure of statistical mechanics vis-a-vis the radiation law cannot be ameliorated by proposing that individual statistical events in the emission of light from different points on the surface of a luminous body are not actually independent but instead are interdependent with each other. Even if one assumes a failure to be statistically independent one derives the same usual form of the radiation law as Fourier sum." p. 290. Calaprice Kennefick & Shulmann. An Einstein Encyclopedia. 2015. 2 "Statistical investigation of the movement of a resonator in a radiation field." With: L. Hopf. "The authors make use of the results in no. 1 above demonstrating that the Rayleigh-Jeans law of radiation is an unavoidable consequence of statistics even if we avoid assumptions that we may think need correction. In other words we cannot blame statistics for a faulty result." p. 290. Calaprice Kennefick & Shulmann. An Einstein Encyclopedia. 2015. 3 "Theory of the opalescence of homogenous liquids and liquid mixtures near the critical state"."Einstein explains the optical effects that occur near the critical point of a fluid at which liquid gas phases can coexist and of a binary mixture of liquids that can also explain the blue color of the sky. It adds to earlier stuidies that provided evidence for the atomistic constitution of matter and is one of the most difficult papers to understand." p. 290. Calaprice Kennefick & Shulmann. An Einstein Encyclopedia. 2015. "October 1910. E. completes a paper on critical opalescence his last major work in classical statistical physics." Pais Subtle is the Lord. 523. Weil's Einstein Bibliography nos. 34 35 and 36 respectively. Boni's Einstein Checklist nos. 29 30 and 31 respectively. . Johann Ambrosius Barth unknown books
1916réf. 50341Leipzig: Johann Ambrosius Barth 1916. Einstein Albert 1879-1955. Über Friedrich Kottlers Abhandlung "Über Einsteins Äquivalenzhypothese und die Gravitation." In Annalen der Physik 51 638-642 pp. Red cloth with gilt lettering on the spine. Whole volume: 883 pp. 4 plates. Figs. Text-illust. 210 x 130 mm. A very good copy. Weil's Einstein Bibliography no. 81. Boni's Einstein Checklist no. 79. . Johann Ambrosius Barth unknown books
réf. 50102pamphlet. 11 pages p 1105-1115 FROM: Annalen der Physik fourth series vol. 33. Modern wrappers. Leipzig 1910. unknown books
réf. 08777Np; 1923. First Edition. Fine. offprint from Sitzungsberichten der Presussichen Akademie der Wissenschaften Sitzung der physikalishch-mahematischen klasse vom 31 mai XVII. p. 137-140 bound in original orange printied wraps; quarto 254 x 184mm. Einstein's first investigation of Weyl's ideas published in the present work introduced the notion of distant parallelism; however Einstein later rejected Weyl's theory. Housed in a custom quarter-leather clamshell box. A fine copy. unknown books
réf. 1412611Norwalk: The Easton Press CT. First Edition. Hardcover. Octavo xii 166 pages. In Very Good condition. Bound in publisher's brown leather with paneling and gilt lettering to spine. Edges of text block gilt. Mild general shelf wear. Shelved in Easton Press. 1412611. Shelved Dupont Bookstore. The Easton Press hardcover books
1921réf. 17649Berlin: Verlag Von Julius Springer 1921. First Trade Edition. Wraps. Very good. The first trade edition of Geometrie Und Erfahrung Geometry and Experience by Albert Einstein from the collection of Einstein's English translator Dr. Wilfrid Perrett. Octavo 20pp. Publisher's original wraps bound with two staples. Light soiling and wear on wraps internally clean. Includes two illustrations advertisements on verso of rear flap. Staples showing rust some wear to edges of original wraps. Weil 115 Schlipp-Shields 143 This copy is signed by Wilfrid Perrett on the front cover. This work first appeared in the Sitzungsberichte der Preussischen Akademie der Wissenschaften accompanied by an "author's offprint" which was bound in orange wrappers. Weil 114. This work is the first separate trade edition. The recipient of this copy Dr. Wilfrid Perrett worked with Dr. George Barker Jeffery to translate many of Einstein's most notable works into English. Perrett was a "distinguished German scholar" and would "overlook the literary side of the work" while Jeffery would oversee the mathematical translations. The two worked together on Das Relativitätsprinzip On the Relativity Principle beginning in 1922 and numerous other works by Einstein over his career. Jammer 113-114. Verlag Von Julius Springer unknown books
1944réf. 556012New York: The American Christian Palestine Committee 1944. Softcover. Very Good. First separate edition. Small octavo. 12pp. Stapled self-wrappers. Slight age-toning on the wrappers and very tiny nicks soiling and light wear very good or better. Two articles jointly written by Einstein and Kahler in response to two articles laying out anti-Zionist testimony given by Dr. Philip Hitti of Princeton before the Committee on Foreign Affairs of the House of Representatives. Both of Hitti's articles and the Einstein and Kahler articles were all published in The Princeton Herald. This publication doesn't include the Hitti articles but summarizes them in the Einstein and Kahler rejoinders. Scarce. The American Christian Palestine Committee unknown books
1938réf. 15852New York: Simon and Schuster 1938. FIRST EDITION THIRD PRINTING. Original cloth; interior clean. A newspaper article pasted onto the paste-down plus the flaps from the dust jacket pasted in. Ownership signature of Charles Schuchert 1858-1942 American paleontologist that was the leader in the development of paleogeography on the fly-leaf. First edition third printing. Intended as an explanation of the totality of Einstein’s accomplishments for the layperson the publication of this extraordinarily successful work was also used in an attempt to find Infeld a university position he eventually ended up in Canada. According to the preface “the book is a simple chat between you and us. You may find it boring or interesting dull or exciting but our aim will be accomplished if these pages give you some idea of the eternal struggle of the inventive human mind for a fuller understanding of the laws governing physical phenomena.” Weil 201. Simon and Schuster unknown books
1908réf. 432171908. Einstein Albert 1879-1955 and Jakob Johann Laub 1884-1962. Über die elektromagnetischen Grundgleichungen für bewegter Körper. Offprint from Annalen der Physik 4th series 26 1908. 532-540pp. 225 x 146 mm. Original printed wrappers. Fine. First Edition Offprint Issue. Einstein's first paper written jointly with a collaborator on the relativistic electrodynamics of ponderable media. "In 1908 Laub wrote works together with Einstein on the basic electromagnetic equations which was aimed to replace the four-dimensional formulation of the electrodynamics by Minkowski by a simpler classical formulation. Both Laub and Einstein discounted the spacetime formalism as too complicated. However it turned out that Minkowski's spacetime formalism was fundamental for the further development of special relativity" Wikipedia. Pais Subtle is the Lord pp. 151 154. Shields 23. Weil 23. . unknown books
1913réf. 43305Leipzig & Berlin: Teubner 1913. 38pp. 254 x 170 mm. Original printed wrappers chipped. Library stamps. Very good. First separate edition. "After his first discussions with Grossmann Einstein had found the correct starting point for general relativity. The real work could now begin . . . The Einstein-Grossmann paper published in 1913 contains profound physical insight into the nature of measurement some correct general relativistic equations some faulty reasoning and clumsy notation" Pais Subtle is the Lord p. 216. Weil Albert Einstein Bibliography 58. Teubner unknown books
1913réf. 50339Leipzig: Johann Ambrosius Barth 1913. Einstein Albert 1879-1955. Einige argumente fur die annahme einer molekularen agitaation beim absoluten nullpunkt. In Annalen der Physik 40 pp.551-560. With: Otto Stern 1888-1969. Red cloth with gilt lettering on the spine. Whole volume: 1056 pp. 1 plate. 210 x 130 mm. A very good copy. "Some arguments for the assumption of molecular agitation at absolute zero." In this paper Einstein and Stern show that the quantum theory of solids to give the best agreement with experiments at normal temperatures seems to demand that at absolute zero a residual energy would remain in the solids which they term "zero-point energy." They thus introduced this important concept to physics." p. 292. Calaprice Kennefick & Shulmann. An Einstein Encyclopedia. 2015. Otto Stern was a German-American physicist and Nobel Laureate in Physics. He was the second most nominated person for a Nobel Prize with 82 nominations in the years 1925-1945 ultimately winning in 1943 "for his contribution to the development of the molecular rat method and his discovery of the magnetic moment of the proton". In 1912 Stern did his doctoral dissertation in concentrated solutions. After receiving his Ph.D. degree Stern took advantage of his economic independence to join Albert Einstein at Prague. Stern was with Einstein from the spring of 1912 until 1914. Weil's Bibliography no. 53. . Johann Ambrosius Barth unknown books
1923réf. 432881923. Einstein Albert 1879-1955 and Paul Ehrenfest 1880-1933. Zur Quantentheorie des Strahlungsgleichgewichts. Offprint from Zeitschrift für Physik 19 1923. 301-306pp. Original printed self-wrappers. 230 x 157 mm. Light toning but very good. First Edition Offprint Issue. In 1916 after publishing his great work on general relativity Einstein returned to the question of blackbody radiation. In November 1916 he wrote to his friend Besso that "a splendid light has dawned on me about the absorption and emission of radiation" quoted in Pais p. 405 one that led him to a new derivation of Planck's radiation law and convinced him of the reality of light-quanta photons. After publishing these results in three papers culminating with the famous "Zur Quantentheorie der Strahlung" 1917 Einstein kept looking for "new ways in which the existence of photons might lead to observable derivations from the classical picture" Pais p. 413. He found none until 1923 when Arthur Compton and Peter Debye independently derived the relativistic kinematics for the scattering of a photon off an electron at rest. The work of Compton and Debye led Wolfgang Pauli to extend Einstein's work of 1917 to the case of radiation in equilibrium with free electrons see Pais p. 414n. "Pauli examined the requirements of detailed balance under Lorentz transformations and found that scattering of light by free electrons must include a term of a form which we would now call stimulated emission . . . Einstein and Ehrenfest then showed that Pauli's results could be obtained by an extension of Einstein's 1917 paper with the unnecessary specialization to discrete energy levels removed . . . The core of Einstein's argument is that the scattering process should be broken into two parts: the absorption of energy from radiation of frequency 1 and the emission of energy as radiation of frequency 2" Lewis p. 42. Lewis "Einstein's derivation of Planck's radiation law" American Journal of Physics 41 1973: 38-44. Pais Subtle is the Lord ch. 21. Weil Albert Einstein Bibliography 138. . unknown books
1922réf. 432871922. Einstein Albert 1879-1955 and Paul Ehrenfest 1880-1933. Quantentheoretische Bemerkungen zum Experiment von Stern und Gerlach. Offprint from Zeitschrift für Physik 11 1922. 31-34pp. 229 x 155 mm. Original printed self-wrappers. Light toning but fine otherwise. First Edition Offprint Issue. In 1922 the physicists Otto Stern and Walther Gerlach conducted a now-classic experiment in which a beam of silver atoms was streamed through an inharmonious magnetic field in order to observe the atoms' deflection patterns. Rather than a random and continuous distribution as predicted by classical theory the atoms passing through the field were deflected up or down by a specific amount demonstrating that they had intrinsically quantum properties. The Stern-Gerlach experiment corroborated the Bohr-Sommerfeld model of the atom and strongly influenced later developments in 20th century physics. However the experiment also created some serious difficulties for quantum physicists in the period before the rise of the "new" quantum mechanics. Einstein and Ehrenfest addressed one of these difficulties-connected with space quantization-in their joint paper in which "they dealt in particular with the problem of how the orbits of the atom would obtain their discrete directions which they exhibit while passing through the inhomogeneous magnetic field. Under the assumption that the mechanism causing the orientation was provided by the interaction with the radiation field Einstein and Ehrenfest estimated that for a field strength of 10000 G a change in the direction of the orbit would take place in roughly 1011 s; this long time interval would be reduced in the presence of heat radiation at room temperature . . . to about 109 s. How could they asked the experimental situation be explained which implied that the discrete orientations of the orbits in silver atoms were obtained in less than 10-4 s. In order to deal with this evident puzzle Einstein and Ehrenfest proposed two alternatives: first that the silver atoms were always in the states of spatial quantization; second the orientations of the electron orbits arose from an interaction of the atoms with the radiation field which involved much smaller reaction times . . . However they found that both alternatives created considerable difficulties in the understanding of the atomic processes . . . Thus Einstein and Ehrenfest concluded: 'The difficulties mentioned above show how unsatisfactory are both interpretations of the results found by Stern and Gerlach'" Mehra & Rechenberg The Historical Development of Quantum Theory 1 pp. 443-444. Pais Subtle is the Lord p. 328. Weil Albert Einstein Bibliography 121. . unknown books
1932réf. 433001932. Offprint from Sitzungsberichte der Preussischen Akademie der Wissenschaften 32 1932. 31pp. 256 x 183 mm. Original printed wrappers a little chipped and darkened small splits in spine. Very good. First edition offprint issue. Einstein's work on semivectors "was stimulated by Ehrenfest's insistence on a better understanding of the relation between single-valued and double-valued representations of the Lorentz group . . . Einstein and Mayer went on to relate semivectors to the Dirac equation and to generalize the formalism to general relativity" Pais Subtle is the Lord pp. 451-452. Weil Albert Einstein Bibliography 186. unknown books
1915réf. 432951915. Einstein Albert 1879-1955 and Wander Johann de Haas 1878-1960. Notiz zu unserer Arbeit "Experimenteller Nachweis der Ampèreschen Molekularströme." Offprint from Verhandlungen der Deutschen Physikalischen Gesellschaft 17 1915. 1 sheet p. 420. 228 x 156 mm. Original printed wrappers. Fine copy. First Edition Offprint Issue. In 1915 Einstein and Dutch physicist Wander Johannes de Haas conducted gyromagnetic experiments leading to the discovery of the Einstein-de Haas effect which corresponds to the mechanical rotation induced in a ferromagnetic cylinder suspended inside a coil when an impulse of electric current is sent through the coil. Einstein was very enthusiastic about the experimental results stating that he and de Haas had "given firm proof of the existence of Ampère's molecular currents" quoted in Pais Subtle is the Lord pp. 245-246. Einstein and de Haas published their results in a paper published earlier in 1915 see Weil 73; the present "Notiz" is a response to a communication from American physicist Samuel Jackson Barnett who had begun performing similar experiments in 1909 and obtained results complementing those of Einstein and de Haas. Weil Albert Einstein Bibliography 73n. . unknown books
1925réf. 140941837Berlin: No Publisher 1925. Revised edition. 783-797 pp. Publisher's original printed wrappers. About Very Good with thin tear along front wrap fold near head a little chipping to wraps at spine front wrap hinge fragile contents toned with age. This copy belonged to Hans Albert Einstein Albert Einstein's oldest son with his inkstamp at top of front wrapper; likely a presentation copy from his father. Neatly written at top of front wrapper are "41" and 163." Very rare author's offprint from Die Kulture der Gegenwart of an essay on relativity theory which was first published in 1914 revised to incorporate Einstein's later research. OCLC/WorldCat locates no physical copies. Weil 71. [No Publisher] unknown books
1916réf. 140941831Leipzig Germany: S. Hirzel 1916. First separate edition. First separate edition. 4 pp. Illustrated with portrait of August Mach from photograph. Publisher's original printed wrappers. Very Good with some small chips to fragile wrappers faint crease to top of front wrap contents toned with age. This copy belonged to Hans Albert Einstein Albert Einstein's oldest son with his inkstamp at top of front wrapper; likely a presentation copy from his father. Neatly written at top of front wrapper is "43" and date "14.III.16." OCLC/WorldCat locates four copies two at the University of Toronto one at the Smithsonian Institution and one at the American Philosophical Society. Weil 89. Very rare author's offprint stating "Uberreicht vom Verfasser" of the eulogy by Albert Einstein for fellow physicist Ernst Mach as first published in Physikalischen Zeitschrift. A noted scientist in his own right Mach is best known for the concept of "Mach's principle" which asserts that an entity's inertial mass is determined by all the other masses in the universe. Einstein in fact coined the phrase "Mach's principle" and his application of it had major ramifications for the development of his theory of general relativity Einstein in 1918 labeling it one of the "three pillars" of general relativity. S. Hirzel unknown books
