Download or read book The Fate of the Mesotron microform the Rome Experiment on the Nuclear Absorption of Hard Cosmic Rays written by Daniela Monaldi and published by Library and Archives Canada = Bibliothèque et Archives Canada. This book was released on 2005 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the 1938--1946 period, cosmic ray studies, nuclear physics, and quantum field theory merged in the cluster of researches related to the spontaneous decay of the particle then called mesotron, or meson. For the first time, an elementary particle was observed to be spontaneously unstable. The conceptual framework and the material apparatus far the study of this new phenomenon had to be created and stabilized. Throughout the last part of World War II and its immediate aftermath, a team of young Italian physicists pursued and achieved the "direct" observation of mesotron decays. They worked within the Italian cosmic-ray tradition while successfully innovating upon its instrumentation and experimental methods. The acquired control of mesotron decay, together with the then current understanding of the nature of mesotrons, directed them to the investigation of another new phenomenon, the capture of mesotrons by atomic nuclei. The outcome of their experiment was unexpected and had far-reaching consequences.

Download or read book The Mesotron Component in Cosmic Rays written by Vernal Josephson and published by . This book was released on 1942 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Knowledge of Cosmic Rays dates back to the early days of research in radioactivity. As in all fields of research the collection of accurate information about Cosmic Rays has been slow. This has been due, especially in the earlier period, to the lack of apparatus capable of obtaining the necessary data, and as the field of Nuclear Physics was new, no adequate theories had been developed. Within the past two decades, two valuable pieces of apparatus have been developed for the experimental study of Cosmic Rays. These instruments are the coincidence counter circuits employing Geiger-Muller (G.M.) counters and the counter controlled cloud chamber. With these instruments many valuable and accurate data have been obtained. [...]" --

Download or read book Cosmic ray Burst Production and the Spin of the Mesotron written by Robert Frederick Christy and published by . This book was released on 1941 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Human Radiation Experiments written by United States. Advisory Committee on Human Radiation Experiments and published by Oxford University Press. This book was released on 1996-06-06 with total page 655 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes in fascinating detail the variety of experiments sponsored by the U.S. government in which human subjects were exposed to radiation, often without their knowledge or consent. Based on a review of hundreds of thousands of heretofore unavailable or classified documents, this Report tells a gripping story of the intricate relationship between science and the state.Under the thick veil of government secrecy, researchers conducted experiments that ranged from the mundane to such egregious violations as administering radioactive tracers to mentally retarded teenagers, injecting plutonium into hospital patients, and intentionally releasing radiation into the environment. This volume concludes with a discussion of the Committee's key findings and guidelines for changes in institutional review boards, ethics rules and policies, and balancing national security interests with individual rights. Ethicists, public health professionals and those interested in the history of medicine and Cold War history will be intrigued by the findings of this landmark report.

Download or read book The Indirect Observation of the Decay of Mesotrons written by Daniela Monaldi and published by . This book was released on 2007 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cosmic Rays written by Robert Andrews Millikan and published by . This book was released on 1939 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the only Nazi death train in World War II to be ambushed and features interviews with the surviving escapees.

Download or read book The Mass of Cosmic Ray Mesotrons written by William B. Fretter and published by . This book was released on 1946 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Neutral Mesotrons in Cosmic Rays written by B.. Trumpy and published by . This book was released on 1942 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Italy written by Elisabetta Bini and published by . This book was released on 2017 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Obsessed by a Dream written by Aashild Sørheim and published by Springer. This book was released on 2019-11-07 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Open Access biography chronicles the life and achievements of the Norwegian engineer and physicist Rolf Widerøe. Readers who meet him in the pages of this book will wonder why he isn't better known. The first of Widerøe's many pioneering contributions in the field of accelerator physics was the betatron, the second, the linear accelerator, both summarized in a 27 page PhD. The betatron revolutionized the fields of cancer treatment through radiation therapy and also nondestructive testing; hospitals worldwide installed Widerøe's machine and today’s modern radiation treatment equipment is based on his inventions. The most recent renaissance of the linac provides unprecedented x-ray intensities at Free Electron Laser (FEL) facilities in operation and construction worldwide. . Widerøe’s story also includes a fair share of drama, particularly during World War II when both Germans and the Allies vied for his collaboration. Widerøe held leading positions in multinational industry groups and was one of the consultants for building the world's largest nuclear laboratory, CERN, in Switzerland. He gained over 200 patents, received several honorary doctorates and a number of international awards. The author, a professional writer and maker of TV documentaries, has gained access to hitherto restricted archives in several countries, which provided a wealth of new material and insights, in particular in relation to the war years. She tells here a gripping and illuminating story.

Download or read book Atoms for Peace and War 1953 1961 written by Richard G. Hewlett and published by Univ of California Press. This book was released on 2023-09-01 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt: This title is part of UC Press's Voices Revived program, which commemorates University of California Press’s mission to seek out and cultivate the brightest minds and give them voice, reach, and impact. Drawing on a backlist dating to 1893, Voices Revived makes high-quality, peer-reviewed scholarship accessible once again using print-on-demand technology. This title was originally published in 1989.

Download or read book Etoki Jisho de Nihongo O Manabimash written by Passport Books and published by . This book was released on 1992 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A dictionary with words and drawings on each page which will help you learn Japanese.

Download or read book Antifascisms written by David Ward and published by Fairleigh Dickinson Univ Press. This book was released on 1996 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an in-depth analysis of three of the most crucial years in twentieth-century Italian history, the years 1943-46. After more than two decades of a Fascist regime and a disastrous war experience during which Italy changed sides, these years saw the laying of the political and cultural foundations for what has since become known as Italy's First Republic. Drawing on texts from the literature, film, journalism, and political debate of the period, Antifascisms offers a thorough survey of the personalities and positions that informed the decisions taken in this crucial phase of modern Italian history.

Download or read book Annual Announcement of Courses of Instruction written by University of California (1868-1952) and published by . This book was released on 1918 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book In the Matter of J Robert Oppenheimer written by Richard Polenberg and published by Cornell University Press. This book was released on 2002 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: At the end of World War II, J. Robert Oppenheimer was one of America's preeminent physicists. For his work as director of the Manhattan Project, he was awarded the Medal for Merit, the highest honor the U.S. government can bestow on a civilian. Yet, in 1953, Oppenheimer was denied security clearance amidst allegations that he was "more probably than not" an "agent of the Soviet Union." Determined to clear his name, he insisted on a hearing before the Atomic Energy Commission's Personnel Security Board.In the Matter of J. Robert Oppenheimer contains an edited and annotated transcript of the 1954 hearing, as well as the various reports resulting from it. Drawing on recently declassified FBI files, Richard Polenberg's introductory and concluding essays situate the hearing in the Cold War period, and his thoughtful analysis helps explain why the hearing was held, why it turned out as it did, and what that result meant, both for Oppenheimer and for the United States.Among the forty witnesses who testified were many who had played vitally important roles in the making of U.S. nuclear policy: Enrico Fermi, Hans Bethe, Edward Teller, Vannevar Bush, George F. Kennan, and Oppenheimer himself. The hearing provides valuable insights into the development of the atomic bomb and the postwar debate among scientists over the hydrogen bomb, the conflict between the foreign policy and military establishments over national defense, and the controversy over the proper standards to apply in assessing an individual's loyalty. It reveals as well the fears and anxieties that plagued America during the Cold War era.

Download or read book The Ghost of Galileo written by J. L. Heilbron and published by Oxford University Press. This book was released on 2021-01-28 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1643/4 the once-famous Francis Cleyn painted the unhappy young heir of Corfe Castle, John Bankes, and his tutor, Dr Maurice Williams. The painter is now almost forgotten,the painting much neglected, and the sitters themselves have left little to mark their lives, but on the table of the painting lies a book, open to an immediately identifiable and very significant page. The representation omits the author's name and the book's title; it sits there as a code, as only viewers who had encountered the original and the characteristic figures on its frontispiece would have known its significance. The book is Galileo's Dialogue on the two chief world systems (1632), the defence of Copernican cosmology that incited the infamous clash between its author and the Church, and its presence in this painting is no accident, but instead a statement of learning, attitudes, and cosmopolitan engagement in European discourse by the painting's English subjects. Grasping hold of the clue, John Helibron deciphers the significance of this contentious book's appearance in a painting from Stuart England to unravel the interlocking threads of art history, political and religious history, and the history of science. Drawing on unexploited archival material and a wide range of printed works, he weaves together English court culture and Italian connections, as well as the astronomical and astrological knowledge propagated in contemporary almanacs and deployed in art, architecture, plays, masques, and political discourse. Heilbron also explores the biographies of Sir John Bankes (father of the sitter), Sir Maurice, and the painter, Francis Cleyn, setting them into the narrative of their rich and cultured history.

Download or read book Crisis and Transition in Italian Politics written by Martin Bull and published by Routledge. This book was released on 2014-03-05 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 1989 Italian politics has witnessed changes that have placed it under an international spotlight. This analysis looks at this period of Italian politics through the prism of the changes of the early 1990s.