Collected Papers of Albert Einstein, Volume 7

Michel Janssen is Assistant Professor of the History of Science at the University of Minnesota. Robert Schulmann has been a longstanding editor of the Einstein Papers and Associate Professor of History at Boston University. József Illy was Senior Research Associate at the Hungarian Academy of Sciences. Christoph Lehner is Senior Research Fellow in Philosophy at the California Institute of Technology. Diana Kormos Buchwald is Associate Professor of History at the California Institute of Technology.

"This latest volume documents Einstein's transformation from obscure physicist to international celebrity. Unlike earlier volumes, the focus is not on pure science but on how Einstein used his new-found fame both to popularize his theories and to contribute to the political and social debates of the day... The Einstein Collected Papers is a superb example of scholarly publishing, documenting the words and thoughts of one of the most subtle yet humane intellects of the 20th century. As this volume shows, his insight into both science and society was equally profound."--P. D. Smith, The Guardian

• LIST OF TEXTS AND APPENDIXES xiii INTRODUCTORY MATERIAL Introduction to Volume 7 xxi Supplement to the Editorial Method xliii Acknowledgments xliv Note on the Translation xlvi Location Symbols xlvii Descriptive Symbols xlviii TEXTS 1 Vol. 6, Doc. 44a. "The Principal Ideas of the Theory of Relativity," after December 1916 3 "Die hauptsachlichen Gedanken der Relativitatstheorie" Vol. 6, Doc. 45a. "On the Questionnaire Concerning the Right of National Self-Determination," July 1917-before 10 March 1918 8 "Zum Fragebogen uber das Selbstbestimmungsrecht der Volker" 1."On Gravitational Waves," 31 January 1918 11 "Uber Gravitationswellen" Koniglich Preussische Akademie der Wissenschaften (Berlin). Sitzungsberichte (1918) 2."Note on E. Schrodinger's Paper 'The Energy Components of the Gravitational Field'," 5 February 1918 29 "Notiz zu E. Schrodingers Arbeit 'Die Energiekomponenten des Gravitationsfeldes'" Physikalische Zeitschrift 19 (1918) 3."Comment on Schrodinger's Note 'On a System of Solutions for the Generally Covariant Gravitational Field Equations'," 3 March 1918 33 "Bemerkung zu Herrn Schrodingers Notiz 'Uber ein Losungssystem der allgemein kovarianten Gravitationsgleichungen'" Physikalische Zeitschrift 19 (1918) 4."On the Foundations of the General Theory of Relativity," 6 March 1918 37 "Prinzipielles zur allgemeinen Relativitatstheorie" Annalen der Physik 55 (1918) 5."Critical Comment on a Solution of the Gravitational Field Equations Given by Mr. De Sitter," 7 March 1918 45 "Kritisches zu einer von Hrn. De Sitter gegebenen Losung der Gravitationsgleichungen" Koniglich Preussische Akademie der Wissenschaften (Berlin). Sitzungsberichte (1918) 6."Is It Possible to Determine Experimentally the X-Ray Refractive Indices of Solids?" 21 March 1918 50 "Lassen sich Brechungsexponenten der Korper fur Rontgenstrahlen experimentell ermitteln?" Deutsche Physikalische Gesellschaft. Verhandlungen 20 (1918) 7."Motives for Research," 26 April 1918 54 "Motive des Forschens" Zu Max Plancks sechzigstem Geburtstag. Ansprachen, gehalten am 26. April 1918 in der Deutschen Physikalischen Gesellschaft von E. War burg, M. v. Laue, A. Sommerfeld und A. Einstein. Karlsruhe: C. F. Mullersche Hofbuchhandlung, 1918 8."Supplement" to Hermann Weyl, "Gravitation and Electricity," 2 May 1918 60 "Nachtrag" Koniglich Preussische Akademie der Wissenschaften (Berlin). Sitzungsberichte (1918) 9."The Law of Energy Conservation in the General Theory of Relativity" and "Note Added in Proof," 16 May 1918 63 "Der Energiesatz in der allgemeinen Relativitatstheorie" and "Nachtrag zur Korrektur" Koniglich Preussische Akademie der Wissenschaften (Berlin). Sitzungsberichte (1918) 10.Review of Hermann Weyl, Space-Time-Matter: Lectures on General Relativity, 21 June 1918 78 Raum-Zeit-Materie Die Naturwissenschaften 6 (1918) 11."Private Expert Opinion on the Objection to Patent Application G 43359 of the Society of Nautical Instruments on the Basis of Patent 241637," 16 July 1918 81 "Privatgutachten zu dem Einspruch gegen die Patentanmeldung G43359 der Gesellschaft fur nautische Instrumente auf Grund des Pantentes 241637" 12.Lecture Notes for Courses on Special Relativity at the University of Berlin and the University of Zurich, Winter Semester 1918-1919, 11 October 1918-second half of February 1919 81 Editorial Note: Einstein's Encounters with German anti-Relativists 101 13."Dialogue about Objections to the Theory of Relativity," before 20 October 1918" 114 "Dialog uber Einwande gegen die Relativitatstheorie" Die Naturwissenschaften 6 (1918) 14.On the Need for a National Assembly, 13 November 1918 123 15."Comment on E. Gehrcke's Note 'On the Ether'," 29 November 1918 126 16. "To the Society 'A Guaranteed Subsistence for All'," 12 December 1918 129 "An den Verein ',Allgemeine Nahrpflicht'" 17."Do Gravitational Fields Play an Essential Role in the Structure of the Elementary Particles of Matter?" 10 April 1919 130 "Spielen Gravitationsfelder im Aufbau der materiellen Elementarteilchen eine wesentliche Rolle?" Koniglich Preussische Akademie der Wissenschaften (Berlin). Sitzungsberichte (1919) 18."Comment about Periodical Fluctuations of Lunar Longitude, Which So Far Appeared to Be Inexplicable in Newtonian Mechanics," 24 April 1919 141 "Bemerkung uber periodische Schwankungen der Mondlange, welche bisher nach der Newtonschen Mechanik nicht erklarbar schienen" Koniglich Preussische Akademie der Wissenschaften (Berlin). Sitzungsberichte (1919) 19.Lecture Notes for Course on General Relativity at the University of Berlin, Summer Semester 1919, May-June 1919 147 20.Excerpt from Lecture Notes for Course on General Relativity at the University of Zurich, Summer Semester 1919, after 3 July 1919 185 21."Court Expert Opinion in the Matter of Anschutz & Co. vs. Kreiselbau Co.," 23 July 1919 190 "Gerichts-Gutachten in Sachen Anschutz & Co. contra Kreiselbau-Gesellschaft m.b.H." 22.Comment on Albert von Brunn, "On Mr. Einstein's Remark about the Irregular Fluctuations of Lunar Longitude with an Approximate Period of the Rotation of the Lunar Nodes," 24 July 1919 196 "Bemerkung zur vorstehenden Notiz" Koniglich Preussische Akademie der Wissenschaften (Berlin). Sitzungsberichte (1919) 23."A Test of the General Theory of Relativity," 9 October 1919 199 "Prufung der allgemeinen Relativitatstheorie" Die Naturwissenschaften 7 (1919) 24."Leo Arons as Physicist," 17 November 1919 202 "Leo Arons als Physiker" Sozialistische Monatshefte 53 (1919) 25."What Is the Theory of Relativity?" before 28 November 1919 206 "Was ist die Relativitats-Theorie?" 26."Time, Space, and Gravitation," 28 November 1919 212 The Times (London), 28 November 1919 27."Welcoming Address to Paul Colin," 16 December 1919 216 "Begrussung an Herrn Colin, gesprochen im Bund Neues Vaterland am 16. XII. 19" 28."Induction and Deduction in Physics," 25 December 1919 218 "Induktion und Deduktion in der Physik" Berliner Tageblatt, 25 December 1919 Editorial Note: Einstein and the Jewish Question 221 29."Immigration from the East," 30 December 1919 237 "Die Zuwanderung aus dem Osten" Berliner Tageblatt, 30 December 1919 30."Expert Opinion on German Patent 269 498 of the A.E.G., Berlin, on a 'Method for the Production of Tungsten Wires for Filaments in Incandescent Lamps,'" 10 January 1920 242 "Gutachten betreffend D.R.P. 269 498 der A.E.G., Berlin, auf ein 'Verfahren zur Herstellung von Wolframdrahten fur Gluhkorper elektrischer Gluhlampen'" 31."Fundamental Ideas and Methods of the Theory of Relativity, Presented in Their Development," after 22 January 1920 245 "Grundgedanken und Methoden der Relativitatstheorie, in ihrer Entwicklung dargestellt" 32.In Support of Georg Nicolai, 26 January 1920 282 33.Uproar in the Lecture Hall, 13 February 1920 284 8-Uhr Abendblatt (Berlin), 13 February 1920 34."Assimilation and Anti-Semitism," 3 April 1920 289 "Assimilation und Antisemitismus" 35."Anti-Semitism. Defense through Knowledge," after 3 April 1920 294 "Antisemitismus. Abwehr durch Erkenntnis" 36.An Exchange of Scientific Literature, 4 April 1920 298 Neue Zurcher Zeitung, 4 April 1920 37.A Confession, 5 April 1920 302 Israelitisches Wochenblatt fur die Schweiz, 24 September 1920 38.Ether and the Theory of Relativity, before 7 April 1920 305 Ather und Relativitatstheorie. Berlin: Springer, 1920 39."Propagation of Sound in Partly Dissociated Gases," 8 April 1920 324 "Schallausbreitung in teilweise dissoziierten Gasen" Koniglich Preussische Akademie der Wissenschaften (Berlin). Sitzungsberichte (1920) 40.To the German Central Committee for Foreign Relief, 11 July 1920 332 41.On the Quaker Relief Effort, after 11 July 1920 334 42.To the "General Association for Popular Technical Education," 16 July 1920 335 Neue Freie Presse, 24 July 1920 43.On New Sources of Energy, 25 July 1920 338 Berliner Tageblatt, 25 July 1920 44."Comment on the Paper by W. R. Hess, 'Contribution to the Theory of the Viscosity of Heterogeneous Systems'," 3 August 1920 341 "Bemerkung zu der Abhandlung von W. R. Hess 'Beitrag zur Theorie der Viskositat heterogener Systeme'" Kolloid-Zeitschrift 27 (1920) 45."My Response. On the Anti-Relativity Company," 27 August 1920 344 "Meine Antwort. Ueber die anti-relativitatstheoretische G.m.b.H." Berliner Tageblatt, 27 August 1920 46.Discussions of Lectures in Bad Nauheim, 23-24 September 1920 350 Physikalische Zeitschrift 21 (1920) 47.On the Contribution of Intellectuals to International Reconciliation, after 29 September 1920 360 Thoughts on Reconciliation (1920) 48."Private Expert Opinion for Telefunken on the Patents of Meissner and Kuhn," after 11 November 1920 365 "Privat-Gutachten fur Telefunken uber die Patente von Meissner und Kuhn" 49.Response to Ernst Reichenbacher, "To What Extent Can Modern Gravitational Theory Be Established without Relativity?" 20 November 1920 368 "Antwort auf vorstehende Betrachtung" Die Naturwissenschaften 8 (1920) 50."Brief Outline of the Development of the Theory of Relativity," after 8 December 1920 372 "Kurze Skizze zur Entwicklung der Relativitatstheorie" 51."The Common Element in Artistic and Scientific Experience," 27 January 1921 379 "Das Gemeinsame am kunstlerischen und wissenschaftlichen Erleben" Menschen 4 (1921) 52.Geometry and Experience, 27 January 1921 382 Geometrie und Erfahrung. Berlin: Springer, 1921 53."A Brief Outline of the Development of the Theory of Relativity," 17 February 1921 406 Nature 106 (1920-21) 54."On a Natural Addition to the Foundation of the General Theory of Relativity," 3 March 1921 411 "Uber eine naheliegende Erganzung des Fundamentes der allgemeinen Relativitatstheorie" Koniglich Preussische Akademie der Wissenschaften (Berlin). Sitzungsberichte (1921) 55."In My Defense," 16 March 1921 417 "Zur Abwehr" Die Naturwissenschaften 9 (1921) 56."A Simple Application of the Newtonian Law of Gravitation to Globular Star Clusters," ca. 18 March 1921 420 "Eine einfache Anwendung des Newtonschen Gravitationsgesetzes auf die kugelformigen Sternhaufen" Festschrift der Kaiser Wilhelm Gesellschaft zur Forderung der Wissenschaften zu ihrem zehnjahrigen Jubilaum dargebracht von ihren Instituten. Berlin: Springer, 1921 57."How I Became a Zionist," before 30 May 1921 426 "Wie ich Zionist wurde" Judische Rundschau, 21 June 1921 58.King's College Lecture, before 13 June 1921 431 59.On a Jewish Palestine. First Version, before 27 June 1921 434 60.On a Jewish Palestine. Final Version, 27 June 1921 438 Judische Rundschau, 1 July 1921 61.On Reporters, 10 August 1921 422 "Einstein und die Interviewer" 62."On the Founding of the Hebrew University in Jerusalem," 26 August 1921 445 "Zur Errichtung der hebraischen Universitat in Jerusalem" Judische Pressezentrale Zurich, 26 August 1921 63."On the Special and General Theory of Relativity," after 1 September 1921 449 "Uber die spezielle und allgemeine Relativitatstheorie" 64.Lecture on the Special Theory of Relativity, after 1 September 1921 458 "Spezielle Relativitatstheorie" 65.On the Misery of Children, 7 October 1921 470 66.Court Expert Opinion in the Matter of Signal Co. vs. Atlas Works, ca. 3 December 1921 472 67."Court Expert Opinion in the Matter of Atlas Works vs. Signal Co.," 3 December 1921 480 "Gerichtsgutachten in Sachen Atlaswerke gegen Signal GmbH" 68."On an Experiment Concerning the Elementary Process of Light Emission," 8 December 1921 483 "Uber ein den Elementarprozess der Lichtemission betreffendes Experiment" Koniglich Preussische Akademie der Wissenschaften (Berlin). Sitzungsberichte (1921) 69.Impact of Science on the Development of Pacifism, before 9 December 1921 488 Kurt Lenz and Walter Fabian, eds. Die Friedensbewegung. Ein Handbuch der Weltfriedensstromungen der Gegenwart. Berlin: Schwetschke, 1922 70."The Plight of German Science. A Danger for the Nation," 21 December 1921 492 "Die Not der deutschen Wissenschaft. Eine Gefahr fur die Nation" Neue Freie Presse, 25 December 1921 71.Four Lectures on the Theory of Relativity, Held at Princeton University in May 19/21, before 4 January 1922 496 APPENDIXES A. Calculations for Doc. 56, after 14 December 1920 579 B. "On the Moment of Momentum in a Magnetized Body," before 2 April 1921 585 Lecture by Wander de Haas after notes by Einstein C. Lectures on Relativity at Princeton University, and Their English Summaries, 9 and 10 May 1921 590 D. "An Interview with Professor Albert Einstein," 4 July 1921 620 "Een interview met prof. Albert Einstein" Nieuwe Rotterdamsche Courant, 4 July 1921 E. Impressions of America, 10 July 1921 628 "Einsteins amerikanische Eindruche. Was er wirklich sah" Vossische Zeitung, 10 July 1921 LITERATURE CITED 631 INDEX 655 INDEX OF CITATIONS 683