Acknowledgments

This book could not have been realized without the support of the International Union of Pure and Applied Physics (IUPAP), which funded the digitization of its entire institutional archive and made the documents available to all researchers involved in this project. We would like to thank the entire IUPAP board for the support and encouragement, with special gratitude to the President Michel Spiro, the President-Designate Silvina Ponce Dawson, the Vice-President Elect at Large for the IUPAP Centenary Monica Pepe Altarelli, and the General Secretary for Legal and Financial Affairs Jens Vigen. We are likewise extremely grateful to Karl Grandin, the Director of the Center for the History of Science of the Royal Swedish Academy of Sciences, where the institutional archives of IUPAP are stored, for the fundamental support in the digitization process. We are also grateful to the archives of the University of Laval for their support in the digitization of the folders of the personal papers of Larkin Kerwin related to IUPAP. IUPAP also co-sponsored, together with the Donostia International Physics Center (DIPC), the international hybrid workshop “One Hundred Years of the International Union of Pure and Applied Physics: A Workshop” held in San Sebastian (Spain) on October 20–22, 2023. We are grateful to IUPAP and DIPC for their generous support. Two international commissions have also supported this project from the scientific and logistic perspective: the Inter-Union (IUHPST/IUPAP) Commission on the History and Philosophy of Physics (IUCHPP) and the IUHPST/DHST Commission on Science, Technology and Diplomacy (STAND) whose President, Simone Turchetti, gave a substantial contribution in various phases of the project. Various authors of the book’s chapters are members of one of the two commissions. We thank the other members of both commissions for their scientific support that greatly advanced the project. We also thank Gordon Barrett, Dieter Hoffmann, Adele La Rana, Waqar Zaidi, as well as five anonymous referees from Oxford University Press, for their insightful comments. In addition to the IUPAP archives, each chapter is based on research on specific historical archives, but here we wish to mention and thank the Archives of the Physics Department of the Sapienza University of Rome for digitizing and making available to the scholars involved several boxes related to IUPAP in various relevant historical collections stored therein. We are also very grateful to the Caltech Archives for having provided digital copies of the microfilms of the Robert A. Millikan papers concerning the activities of Millikan in international scientific institutions.