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Prehistory of CERN: the First Suggestions (1949-Jun 1950)
CHS-3 March 1984 STUDIES IN CERN HISTORY Prehistory of CERN : the first suggestions (1949 - June 1950) Dominique Pestre GENEVA 1984 The Study of CERN History is a project financed by Institutions in several CERN Member Countries. This report presents preliminary findings. and is intended for incorporation into a more comprehensive study of CERN's history. It is distributed primarily to historians and scientists to provoke discussion, and no part of it should be cited or reproduced without written permission from the Team Leacier. Comments are welcome and should be sent to: Study Team for CERN History c/oCERN CH-1211 GENEVE23 Switzerland © Copyright Study Team for CERN History, Geneva 1984 CERN-Service d'information scientifique - 300 - mars 1984 PREHISTORY OF CERN THE FIRST SUGGESTIONS (1949 - June 1950) I The years following the war II Two proposals of European collaboration in November 1949 III The European Cultural Conference, Lausanne, December 8-12, 1949 IV Attempts to implement the suggestions a - The European Movement initiative b - The French attempts V The fifth General Conference of UNESCO, Florence, June 1950 PREHISTORY OF CERN: THE FIRST SUGGESTIONS (1949-June 1950) 1 The official date of the foundation of CERN is easily established. The convention setting up CERN, signed on July 1, 1953 was ratified by France and Germany on September 29, 1954. By then nine States had signed, and CERN came officially into being. However, the interest of this date is rather limited. It ended a process initiated several years before and understanding this process is far more interesting than having a date of birth. -
Hitler and Heisenberg
The Wall Street Journal December 27-28, 2014 Book Review “Serving the Reich” by Philip Ball, Chicago, $30, 303 pages Hitler and Heisenberg Werner Heisenberg thought that once Germany had won, the ‘good Germans’ would get rid of the Nazis. Fizzing The museum inside the former basement tavern where in early 1945 German scientists built a small nuclear reactor. Associated Press by Jeremy Bernstein The German scientists who remained in Germany throughout the Nazi period can be divided into three main groups. At one end were the anti-Nazis—people who not only despised the regime but tried to do something about it. They were very few. Two that come to mind were Fritz Strassmann and Max von Laue. Strassmann was a radiochemist—a specialist in radioactive materials—who was blacklisted from university jobs by the Society of German Chemists in 1933 for his anti-Nazi views. He was fortunate to get a half-pay job at the Kaiser Wilhelm Institute for Chemistry, which got some of its funding from industry. He and his wife (they had a 3-year-old son) hid a Jewish friend in their apartment for months. With the radiochemist Otto Hahn, he performed the 1938 experiment in which fission was observed for the first time. Von Laue won the Nobel Prize in physics in 1914. Soon after Einstein published his 1905 paper on relativity, von Laue went to Switzerland to see him. They remained friends for life. Under the Nazis, Einstein’s work was denounced as “Jewish science.” When a number of von Laue’s colleagues agreed to use relativity but attribute it to some Aryan, he refused. -
Rutherford's Nuclear World: the Story of the Discovery of the Nuc
Rutherford's Nuclear World: The Story of the Discovery of the Nuc... http://www.aip.org/history/exhibits/rutherford/sections/atop-physic... HOME SECTIONS CREDITS EXHIBIT HALL ABOUT US rutherford's explore the atom learn more more history of learn about aip's nuclear world with rutherford about this site physics exhibits history programs Atop the Physics Wave ShareShareShareShareShareMore 9 RUTHERFORD BACK IN CAMBRIDGE, 1919–1937 Sections ← Prev 1 2 3 4 5 Next → In 1962, John Cockcroft (1897–1967) reflected back on the “Miraculous Year” ( Annus mirabilis ) of 1932 in the Cavendish Laboratory: “One month it was the neutron, another month the transmutation of the light elements; in another the creation of radiation of matter in the form of pairs of positive and negative electrons was made visible to us by Professor Blackett's cloud chamber, with its tracks curled some to the left and some to the right by powerful magnetic fields.” Rutherford reigned over the Cavendish Lab from 1919 until his death in 1937. The Cavendish Lab in the 1920s and 30s is often cited as the beginning of modern “big science.” Dozens of researchers worked in teams on interrelated problems. Yet much of the work there used simple, inexpensive devices — the sort of thing Rutherford is famous for. And the lab had many competitors: in Paris, Berlin, and even in the U.S. Rutherford became Cavendish Professor and director of the Cavendish Laboratory in 1919, following the It is tempting to simplify a complicated story. Rutherford directed the Cavendish Lab footsteps of J.J. Thomson. Rutherford died in 1937, having led a first wave of discovery of the atom. -
George De Hevesy in America
Journal of Nuclear Medicine, published on July 13, 2019 as doi:10.2967/jnumed.119.233254 George de Hevesy in America George de Hevesy was a Hungarian radiochemist who was awarded the Nobel Prize in Chemistry in 1943 for the discovery of the radiotracer principle (1). As the radiotracer principle is the foundation of all diagnostic and therapeutic nuclear medicine procedures, Hevesy is widely considered the father of nuclear medicine (1). Although it is well-known that he spent time at a number of European institutions, it is not widely known that he also spent six weeks at Cornell University in Ithaca, NY, in the fall of 1930 as that year’s Baker Lecturer in the Department of Chemistry (2-6). “[T]he Baker Lecturer gave two formal presentations per week, to a large and diverse audience and provided an informal seminar weekly for students and faculty members interested in the subject. The lecturer had an office in Baker Laboratory and was available to faculty and students for further discussion.” (7) There is also evidence that, “…Hevesy visited Harvard [University, Cambridge, MA] as a Baker Lecturer at Cornell in 1930…” (8). Neither of the authors of this Note/Letter was aware of Hevesy’s association with Cornell University despite our longstanding ties to Cornell until one of us (WCK) noticed the association in Hevesy’s biographical page on the official Nobel website (6). WCK obtained both his undergraduate degree and medical degree from Cornell in Ithaca and New York City, respectively, and spent his career in nuclear medicine. JRO did his nuclear medicine training at Columbia University and has subsequently been a faculty member of Weill Cornell Medical College for the last eleven years (with a brief tenure at Memorial Sloan Kettering Cancer Center (affiliated with Cornell)), and is now the program director of the Nuclear Medicine residency and Chief of the Molecular Imaging and Therapeutics Section. -
HEAVY WATER and NONPROLIFERATION Topical Report
HEAVY WATER AND NONPROLIFERATION Topical Report by MARVIN M. MILLER MIT Energy Laboratory Report No. MIT-EL 80-009 May 1980 COO-4571-6 MIT-EL 80-009 HEAVY WATER AND NONPROLIFERATION Topical Report Marvin M. Miller Energy Laboratory and Department of Nuclear Engineering Massachusetts Institute of Technology Cambridge, Massachusetts 02139 May 1980 Prepared For THE U.S. DEPARTMENT OF ENERGY UNDER CONTRACT NO. EN-77-S-02-4571.A000 NOTICE This report was prepared as an account of work sponsored by the United States Government. Neither the United States nor the United States Department of Energy, nor any of their employees, nor any of their contractors, subcontractors, or their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or useful- ness of any information, apparatus, product or process disclosed or represents that its use would not infringe privately owned rights. A B S T R A C T The following report is a study of various aspects of the relationship between heavy water and the development of the civilian and military uses of atomic energy. It begins with a historical sketch which traces the heavy water storyfrom its discovery by Harold Urey in 1932 through its coming of age from scientific curiosity to strategic nuclear material at the eve of World War II and finally into the post-war period, where the military and civilian strands have some- times seemed inextricably entangled. The report next assesses the nonproliferation implications of the use of heavy water- moderated power reactors; several different reactor types are discussed, but the focus in on the natural uranium, on- power fueled, pressure tube reactor developed in Canada, the CANDU. -
A Brief History of Nuclear Astrophysics
A BRIEF HISTORY OF NUCLEAR ASTROPHYSICS PART I THE ENERGY OF THE SUN AND STARS Nikos Prantzos Institut d’Astrophysique de Paris Stellar Origin of Energy the Elements Nuclear Astrophysics Astronomy Nuclear Physics Thermodynamics: the energy of the Sun and the age of the Earth 1847 : Robert Julius von Mayer Sun heated by fall of meteors 1854 : Hermann von Helmholtz Gravitational energy of Kant’s contracting protosolar nebula of gas and dust turns into kinetic energy Timescale ~ EGrav/LSun ~ 30 My 1850s : William Thompson (Lord Kelvin) Sun heated at formation from meteorite fall, now « an incadescent liquid mass » cooling Age 10 – 100 My 1859: Charles Darwin Origin of species : Rate of erosion of the Weald valley is 1 inch/century or 22 miles wild (X 1100 feet high) in 300 My Such large Earth ages also required by geologists, like Charles Lyell A gaseous, contracting and heating Sun 푀⊙ Mean solar density : ~1.35 g/cc Sun liquid Incompressible = 4 3 푅 3 ⊙ 1870s: J. Homer Lane ; 1880s :August Ritter : Sun gaseous Compressible As it shrinks, it releases gravitational energy AND it gets hotter Earth Mayer – Kelvin - Helmholtz Helmholtz - Ritter A gaseous, contracting and heating Sun 푀⊙ Mean solar density : ~1.35 g/cc Sun liquid Incompressible = 4 3 푅 3 ⊙ 1870s: J. Homer Lane ; 1880s :August Ritter : Sun gaseous Compressible As it shrinks, it releases gravitational energy AND it gets hotter Earth Mayer – Kelvin - Helmholtz Helmholtz - Ritter A gaseous, contracting and heating Sun 푀⊙ Mean solar density : ~1.35 g/cc Sun liquid Incompressible = 4 3 푅 3 ⊙ 1870s: J. -
Wolfgang Pauli Niels Bohr Paul Dirac Max Planck Richard Feynman
Wolfgang Pauli Niels Bohr Paul Dirac Max Planck Richard Feynman Louis de Broglie Norman Ramsey Willis Lamb Otto Stern Werner Heisenberg Walther Gerlach Ernest Rutherford Satyendranath Bose Max Born Erwin Schrödinger Eugene Wigner Arnold Sommerfeld Julian Schwinger David Bohm Enrico Fermi Albert Einstein Where discovery meets practice Center for Integrated Quantum Science and Technology IQ ST in Baden-Württemberg . Introduction “But I do not wish to be forced into abandoning strict These two quotes by Albert Einstein not only express his well more securely, develop new types of computer or construct highly causality without having defended it quite differently known aversion to quantum theory, they also come from two quite accurate measuring equipment. than I have so far. The idea that an electron exposed to a different periods of his life. The first is from a letter dated 19 April Thus quantum theory extends beyond the field of physics into other 1924 to Max Born regarding the latter’s statistical interpretation of areas, e.g. mathematics, engineering, chemistry, and even biology. beam freely chooses the moment and direction in which quantum mechanics. The second is from Einstein’s last lecture as Let us look at a few examples which illustrate this. The field of crypt it wants to move is unbearable to me. If that is the case, part of a series of classes by the American physicist John Archibald ography uses number theory, which constitutes a subdiscipline of then I would rather be a cobbler or a casino employee Wheeler in 1954 at Princeton. pure mathematics. Producing a quantum computer with new types than a physicist.” The realization that, in the quantum world, objects only exist when of gates on the basis of the superposition principle from quantum they are measured – and this is what is behind the moon/mouse mechanics requires the involvement of engineering. -
Luis Alvarez: the Ideas Man
CERN Courier March 2012 Commemoration Luis Alvarez: the ideas man The years from the early 1950s to the late 1980s came alive again during a symposium to commemorate the birth of one of the great scientists and inventors of the 20th century. Luis Alvarez – one of the greatest experimental physicists of the 20th century – combined the interests of a scientist, an inventor, a detective and an explorer. He left his mark on areas that ranged from radar through to cosmic rays, nuclear physics, particle accel- erators, detectors and large-scale data analysis, as well as particles and astrophysics. On 19 November, some 200 people gathered at Berkeley to commemorate the 100th anniversary of his birth. Alumni of the Alvarez group – among them physicists, engineers, programmers and bubble-chamber film scanners – were joined by his collaborators, family, present-day students and admirers, as well as scientists whose professional lineage traces back to him. Hosted by the Lawrence Berkeley National Laboratory (LBNL) and the University of California at Berkeley, the symposium reviewed his long career and lasting legacy. A recurring theme of the symposium was, as one speaker put it, a “Shakespeare-type dilemma”: how could one person have accom- plished all of that in one lifetime? Beyond his own initiatives, Alvarez created a culture around him that inspired others to, as George Smoot put it, “think big,” as well as to “think broadly and then deep” and to take risks. Combined with Alvarez’s strong scientific standards and great care in execut- ing them, these principles led directly to the awarding of two Nobel Luis Alvarez celebrating the announcement of his 1968 Nobel prizes in physics to scientists at Berkeley – George Smoot in 2006 prize. -
I. I. Rabi Papers [Finding Aid]. Library of Congress. [PDF Rendered Tue Apr
I. I. Rabi Papers A Finding Aid to the Collection in the Library of Congress Manuscript Division, Library of Congress Washington, D.C. 1992 Revised 2010 March Contact information: http://hdl.loc.gov/loc.mss/mss.contact Additional search options available at: http://hdl.loc.gov/loc.mss/eadmss.ms998009 LC Online Catalog record: http://lccn.loc.gov/mm89076467 Prepared by Joseph Sullivan with the assistance of Kathleen A. Kelly and John R. Monagle Collection Summary Title: I. I. Rabi Papers Span Dates: 1899-1989 Bulk Dates: (bulk 1945-1968) ID No.: MSS76467 Creator: Rabi, I. I. (Isador Isaac), 1898- Extent: 41,500 items ; 105 cartons plus 1 oversize plus 4 classified ; 42 linear feet Language: Collection material in English Location: Manuscript Division, Library of Congress, Washington, D.C. Summary: Physicist and educator. The collection documents Rabi's research in physics, particularly in the fields of radar and nuclear energy, leading to the development of lasers, atomic clocks, and magnetic resonance imaging (MRI) and to his 1944 Nobel Prize in physics; his work as a consultant to the atomic bomb project at Los Alamos Scientific Laboratory and as an advisor on science policy to the United States government, the United Nations, and the North Atlantic Treaty Organization during and after World War II; and his studies, research, and professorships in physics chiefly at Columbia University and also at Massachusetts Institute of Technology. Selected Search Terms The following terms have been used to index the description of this collection in the Library's online catalog. They are grouped by name of person or organization, by subject or location, and by occupation and listed alphabetically therein. -
Atom-Light Interaction and Basic Applications
ICTP-SAIFR school 16.-27. of September 2019 on the Interaction of Light with Cold Atoms Lecture on Atom-Light Interaction and Basic Applications Ph.W. Courteille Universidade de S~aoPaulo Instituto de F´ısicade S~aoCarlos 07/01/2021 2 . 3 . 4 Preface The following notes have been prepared for the ICTP-SAIFR school on 'Interaction of Light with Cold Atoms' held 2019 in S~aoPaulo. They are conceived to support an introductory course on 'Atom-Light Interaction and Basic Applications'. The course is divided into 5 lectures. Cold atomic clouds represent an ideal platform for studies of basic phenomena of light-matter interaction. The invention of powerful cooling and trapping techniques for atoms led to an unprecedented experimental control over all relevant degrees of freedom to a point where the interaction is dominated by weak quantum effects. This course reviews the foundations of this area of physics, emphasizing the role of light forces on the atomic motion. Collective and self-organization phenomena arising from a cooperative reaction of many atoms to incident light will be discussed. The course is meant for graduate students and requires basic knowledge of quan- tum mechanics and electromagnetism at the undergraduate level. The lectures will be complemented by exercises proposed at the end of each lecture. The present notes are mostly extracted from some textbooks (see below) and more in-depth scripts which can be consulted for further reading on the website http://www.ifsc.usp.br/∼strontium/ under the menu item 'Teaching' −! 'Cursos 2019-2' −! 'ICTP-SAIFR pre-doctoral school'. The following literature is recommended for preparation and further reading: Ph.W. -
Taxonomy of Belarusian Educational and Research Portal of Nuclear Knowledge
Taxonomy of Belarusian Educational and Research Portal of Nuclear Knowledge S. Sytova� A. Lobko, S. Charapitsa Research Institute for Nuclear Problems, Belarusian State University Abstract The necessity and ways to create Belarusian educational and research portal of nuclear knowledge are demonstrated. Draft tax onomy of portal is presented. 1 Introduction President Dwight D. Eisenhower in December 1953 presented to the UN initiative "Atoms for Peace" on the peaceful use of nuclear technology. Today, many countries have a strong nuclear program, while other ones are in the process of its creation. Nowadays there are about 440 nuclear power plants operating in 30 countries around the world. Nuclear reac tors are used as propulsion systems for more than 400 ships. About 300 research reactors operate in 50 countries. Such reactors allow production of radioisotopes for medical diagnostics and therapy of cancer, neutron sources for research and training. Approximately 55 nuclear power plants are under construction and 110 ones are planned. Belarus now joins the club of countries that have or are building nu clear power plant. Our country has a large scientific potential in the field of atomic and nuclear physics. Hence it is obvious the necessity of cre ation of portal of nuclear knowledge. The purpose of its creation is the accumulation and development of knowledge in the nuclear field as well as popularization of nuclear knowledge for the general public. *E-mail:[email protected] 212 Wisdom, enlightenment Figure 1: Knowledge management 2 Nuclear knowledge Since beginning of the XXI century the International Atomic Energy Agen cy (IAEA) gives big attention to the nuclear knowledge management (NKM) [1]-[3] . -
Europe's Biggest General Science Conference Concludes Successfully
SCIENCEScience PagesPAGES Special Report - ESOF 2016 Europe’s biggest generalSpecial Report science conference concludes successfully ESOF 2016, Europe's biggest general science conference concludes successfully in Manchester,in Manchester,UK UK Theme: Science as Revolution Theme: Science as Revolution - Veena Patwardhan rom 23rd to 27th July, 2016, FManchester flaunted its City of Science status as the host city of the seventh edition of EuroScience Open Forum (ESOF 2016). A bi- ennial event held in a different European city every two years, this time it was Manchester's turn to host this globally reputed science conference. Around 4500 delegates – scien- tists, innovators, academics, young researchers, journalists, policy makers, industry representatives and others – converged on the world's first industrial city to dis- cover and have discussions about the latest advancements in scien- rd th Manchester Central, venue of ESOF 2016 tific and technological researchFrom 23 to 27 July, 2016, Manchester flaunted its City of Science status as the host city of the across Europe and beyond. The seventhmain theme edition this of EuroScienceyear Laureates Open Forumand distinguished (ESOF 2016). Ascientists biennial inevent the held packed in a different was 'Science as Revolution', indicatingEuropean that city the every focus two of years,Exchange this time Hall it wasof Manchester Manchester's Central, turn to hostthe venuethis globally of the reputed the conference would be on how sciencescience andconference. technology conference. could transform life on the planet, revolutionise econo- The proceedings began with a string quartet render- mies, and help in overcoming challenges faced by global ing a piece of specially composed music.