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The Development of the Science of Superconductivity and Superfluidity
Universal Journal of Physics and Application 1(4): 392-407, 2013 DOI: 10.13189/ujpa.2013.010405 http://www.hrpub.org Superconductivity and Superfluidity-Part I: The development of the science of superconductivity and superfluidity in the 20th century Boris V.Vasiliev ∗Corresponding Author: [email protected] Copyright ⃝c 2013 Horizon Research Publishing All rights reserved. Abstract Currently there is a common belief that the explanation of superconductivity phenomenon lies in understanding the mechanism of the formation of electron pairs. Paired electrons, however, cannot form a super- conducting condensate spontaneously. These paired electrons perform disorderly zero-point oscillations and there are no force of attraction in their ensemble. In order to create a unified ensemble of particles, the pairs must order their zero-point fluctuations so that an attraction between the particles appears. As a result of this ordering of zero-point oscillations in the electron gas, superconductivity arises. This model of condensation of zero-point oscillations creates the possibility of being able to obtain estimates for the critical parameters of elementary super- conductors, which are in satisfactory agreement with the measured data. On the another hand, the phenomenon of superfluidity in He-4 and He-3 can be similarly explained, due to the ordering of zero-point fluctuations. It is therefore established that both related phenomena are based on the same physical mechanism. Keywords superconductivity superfluidity zero-point oscillations 1 Introduction 1.1 Superconductivity and public Superconductivity is a beautiful and unique natural phenomenon that was discovered in the early 20th century. Its unique nature comes from the fact that superconductivity is the result of quantum laws that act on a macroscopic ensemble of particles as a whole. -
2015 Annual Report
2015 AMERICAN PHYSICAL SOCIETY ANNUAL TM ADVANCING PHYSICS REPORT TM THE AMERICAN PHYSICAL SOCIETY STRIVES TO Be the leading voice for physics and an authoritative source of physics information for the advancement of physics and the benefit of humanity Collaborate with national scientific societies for the advancement of science, science education, and the science community Cooperate with international physics societies to promote physics, to support physicists worldwide, and to foster international collaboration Have an active, engaged, and diverse membership, and support the activities of its units and members © 2016 American Physical Society During 2015, APS worked to institute the governance objective: “the advancement and diffusion of the knowledge changes approved by the membership in late 2014. In of physics.” APS is fully committed to the principles of OA accordance with the new Constitution & Bylaws, in to the extent that we can continue to support the production February the Board appointed our first Chief Executive of high-quality peer-reviewed journals. For many years APS Officer—Kate Kirby, the former Executive Officer—to has supported “green” OA and we have been fully compliant head the APS. Kate’s major task has been to transition with the 2013 directive from the Office of Science and the management of APS to a CEO model with a Senior Technology Policy that the publications resulting from Management Team. She appointed Mark Doyle as Chief U.S. federally funded research be accessible to the public 12 Information Officer, James Taylor as Chief Operating months after publication. Since APS is a major international Officer, and Matthew Salter as the new Publisher. -
2005 Annual Report American Physical Society
1 2005 Annual Report American Physical Society APS 20052 APS OFFICERS 2006 APS OFFICERS PRESIDENT: PRESIDENT: Marvin L. Cohen John J. Hopfield University of California, Berkeley Princeton University PRESIDENT ELECT: PRESIDENT ELECT: John N. Bahcall Leo P. Kadanoff Institue for Advanced Study, Princeton University of Chicago VICE PRESIDENT: VICE PRESIDENT: John J. Hopfield Arthur Bienenstock Princeton University Stanford University PAST PRESIDENT: PAST PRESIDENT: Helen R. Quinn Marvin L. Cohen Stanford University, (SLAC) University of California, Berkeley EXECUTIVE OFFICER: EXECUTIVE OFFICER: Judy R. Franz Judy R. Franz University of Alabama, Huntsville University of Alabama, Huntsville TREASURER: TREASURER: Thomas McIlrath Thomas McIlrath University of Maryland (Emeritus) University of Maryland (Emeritus) EDITOR-IN-CHIEF: EDITOR-IN-CHIEF: Martin Blume Martin Blume Brookhaven National Laboratory (Emeritus) Brookhaven National Laboratory (Emeritus) PHOTO CREDITS: Cover (l-r): 1Diffraction patterns of a GaN quantum dot particle—UCLA; Spring-8/Riken, Japan; Stanford Synchrotron Radiation Lab, SLAC & UC Davis, Phys. Rev. Lett. 95 085503 (2005) 2TESLA 9-cell 1.3 GHz SRF cavities from ACCEL Corp. in Germany for ILC. (Courtesy Fermilab Visual Media Service 3G0 detector studying strange quarks in the proton—Jefferson Lab 4Sections of a resistive magnet (Florida-Bitter magnet) from NHMFL at Talahassee LETTER FROM THE PRESIDENT APS IN 2005 3 2005 was a very special year for the physics community and the American Physical Society. Declared the World Year of Physics by the United Nations, the year provided a unique opportunity for the international physics community to reach out to the general public while celebrating the centennial of Einstein’s “miraculous year.” The year started with an international Launching Conference in Paris, France that brought together more than 500 students from around the world to interact with leading physicists. -
Aleksei A. Abrikosov 1928–2017
Aleksei A. Abrikosov 1928–2017 A Biographical Memoir by M. R. Norman ©2018 National Academy of Sciences. Any opinions expressed in this memoir are those of the author and do not necessarily reflect the views of the National Academy of Sciences. ALEKSEI ALEKSEEVICH ABRIKOSOV June 25, 1928–March 29, 2017 Elected to the NAS, 2000 Shortly after the 2003 announcement that Aleksei Abrikosov had won the Nobel Prize in Physics, a number of colleagues took Alex to lunch at a nearby Italian restau- rant. During lunch, one of the Russian visitors exclaimed that Alex should get a second Nobel Prize, this time in Literature for his famous “AGD” book with Lev Gor’kov and Igor Dzyaloshinskii (Methods of Quantum Field Theory in Statistical Physics.) Somewhat taken aback, I looked closely at this individual and realized that he was deadly serious. Although I could imagine the reaction of the Nobel Literature committee to such a book (for a lay person, perhaps analogous to trying to read Finnegan’s Wake), I had to admit that my own copy of this book is quite dog-eared, having been put to good use over the By M. R. Norman years. In fact, you know you have made it in physics when your book gets a Dover edition. One of the most charming pictures I ever saw was a rare drawing in color that Alexei Tsvelik did (commissioned by Andrei Varlamov for Alex’s 50th birthday) that was proudly displayed in Alex’s home in Lemont, IL. It showed Alex with his fingers raised in a curled fashion as in the habit of medieval Popes. -
Rice University General Announcements
fju.<JLu!^]iA^.^uSo^ THE RICE INSTITUTE HOUSTON, TEXAS ANNOUNCEMENTS FOR THE ACADEMIC YEAR BEGINNING SEPTEMBER EIGHTEENTH NINETEEN HUNDRED AND FORTY-ONE THE RICE INSTITUTE A UNIVERSITY OF LIBERAL AND TECHNICAL LEARNING FOUNDED IN THE CITY OF HOUSTON, TEXAS BY WILLIAM MARSH RICE AND DEDICATED BY HIM TO THE ADVANCEMENT OF LETTERS SCIENCE AND ART OPENED FOR THE RECEPTION OF STUDENTS IN THE AUTUMN OF NINETEEN HUNDRED AND TWELVE THE BOARD OF TRUSTEES JAMES ADDISON BAKER: CHAIRMAN WILLIAM MARSH RICE, JR.: VICE-CHAIRMAN JOHN THADDEUS SCOTT: VICE-CHAIRMAN BENJAMIN BOTTS RICE: SECRETARY-TREASURER EDGAR ODELL LOVETT ALEXANDER SESSUMS CLEVELAND ROBERT LEE BLAFFER Digitized by the Internet Archive in 2010 with funding from Lyrasis members and Sloan Foundation funding http://www.archive.org/details/riceuniversityge194142hous — CALENDAR 1941 September 15-18 Entrance Examinations September 18 . Registration of Academ- ic Students September 19 . Registration of Students of Architecture and Engineering September 22 . Opening of Courses September 24 . Matriculation Address November 26 . Beginning of Thanksgiv- ing Recess at 5:00 p.m. December i Resumption of Courses at 8:00 A.M. December 13-20 December Examinations December 20 . Beginning of Christmas Recess at 5:00 p.m. 1942 January 2 . Resumption of Courses at 8:00 A.M. January 26- February 5 February Examinations February 22 Washington's Birthday (Monday February 23 — a holiday) March 2 Texas Independence Day April 21 San Jacinto Day May 11-16 Entrance Examinations May 25-June 5 . Final Examinations June 6-8 . Twenty-seventh Annual Commencement THE RICE INSTITUTE OFFICERS OF ADiMlNISTRATION EDGAR ODELL LOVETT, Ph.D., Sc.D., LL.D. -
Tsetusuo Wakabayashi, Revealed
Tsetusuo Wakabayashi, Revealed By Dwight R. Rider Edited by Eric DeLaBarre Preface Most great works of art begin with an objective in mind; this is not one of them. What follows in the pages below had its genesis in a research effort to determine what, if anything the Japanese General Staff knew of the Manhattan Project and the threat of atomic weapons, in the years before the detonation of an atomic bomb over Hiroshima in August 1945. That project drew out of an intense research effort into Japan’s weapons of mass destruction programs stretching back more than two decades; a project that remains on-going. Unlike a work of art, this paper is actually the result of an epiphany; a sudden realization that allows a problem, in this case the Japanese atomic energy and weapons program of World War II, to be understood from a different perspective. There is nothing in this paper that is not readily accessible to the general public; no access to secret documents, unreported interviews or hidden diaries only recently discovered. The information used in this paper has been, for the most part, available to researchers for nearly 30 years but only rarely reviewed. The paper that follows is simply a narrative of a realization drawn from intense research into the subject. The discoveries revealed herein are the consequence of a closer reading of that information. Other papers will follow. In October of 1946, a young journalist only recently discharged from the US Army in the drawdown following World War II, wrote an article for the Atlanta Constitution, the premier newspaper of the American south. -
CP Violation's Early Days
CERN Courier July/August 2014 Anniversary Temperature is our business CP violation’s early days Mineral Insulated Cable Reliable, Highly accurate cabling capable of A brief look back at a discovery that surprised operating in extreme environments. the world of particle physics 50 years ago. MgO and SiO2 Cables. RF Coaxial Cables. Multiconductor Transmission Cables. In the summer of 1964, at the International Conference on High- Welded and hermetically sealed connections. Energy Physics (ICHEP) in Dubna, Jim Cronin presented the results Capable of operating in and measuring temperatures of an experiment studying neutral kaons at Brookhaven National of up to 1,260oC. Laboratory. In particular, it had shown that the long-lived neutral Capable of operating in the following atmospheres - kaon can decay into two pions, which implied the violation of CP oxidising, reducing, neutral and vacuum. symmetry – a discovery that took the physics community by sur- prise. The news was greeted with some scepticism and met a barrage of questions. Everyone wanted to be satisfi ed that nothing had been overlooked, and that all other possibilities had been considered care- The experiment that discovered CP violation at Brookhaven was fully and ruled out. People need not have worried. Cronin, together set up in a neutral beamline, directed inside the ring of the Innovation at Okazaki: Cabling, Temperature Sensors & Heaters | okazaki-mfg.com with Val Fitch, visiting French physicist René Turlay and graduate Alternating Gradient Synchrotron. Visible here are the two student Jim Christenson, had spent months asking themselves the spectrometer magnets positioned at 22° to the beam. Spark CERN_125x193:Mise en page 1 18/09/12 17:17 Page 1 same questions, testing and cross-checking their results thoroughly. -
History Newsletter CENTER for HISTORY of PHYSICS&NIELS BOHR LIBRARY & ARCHIVES Vol
History Newsletter CENTER FOR HISTORY OF PHYSICS&NIELS BOHR LIBRARY & ARCHIVES Vol. 43, No. 1 • Summer 2011 Taking Technology Through the “Valley of Death,” Physicists Don’t Fear Risk As the History of Physics Entrepreneur- Physicists are highly skilled in risk Two other issues surprised us by ship (HoPE) project transitions from the analysis and few, if any, appear inclined the degree to which they influenced interview phase to the analysis phase, to venture into activity at which they physics-based innovation in the US. The new and intriquing insights have begun do not feel confident they will succeed role of the federal SBIR/STTR programs to bubble to the surface. The project even though they are aware that they in providing resources to enable high staff have completed 114 interviews with are bringing new technologies through tech innovation appears critical. SBIR/ physicist entrepreneurs, STTR grants play at least 11 interviews with univers- two important roles. At ity intellectual property one level they provide transfer offices, and two critical seed funding for interviews with venture ideas and innovations capitalists throughout that have not yet the U.S. With field trips reached a stage that will to Georgia and Colorado attract venture capital remaining on the agenda, or angel investment. we expect to interview At another level they another ten to fifteen provide an essential physicist entrepreneurs resource for companies and five or six venture whose technologies are capitalists. We’ll then nearly fully developed spend the last year of but have not yet found the three-year study their proper market coding and analyzing and for whom venture the interviews and other capitalists are either resources and compiling our findings. -
Austin Tobin, Leo Beranek and the Advent of Jet Travel
Journal of Aeronautical History Paper No. 2017/03 Public Demands and Technological Response: Austin Tobin, Leo Beranek and the Advent of Jet Travel Jameson W. Doig Research Professor in Government, Dartmouth College; Professor Emeritus, Princeton University Abstract As the Luddite protests in the 19th Century and resistance in the 20th Century to building nuclear power plants illustrate, technological change often generates powerful public opposition. In some instances, however, scientific strategies, joined with sustained pressure from well-placed supporters, can be used to ameliorate the worst effects of technological change - as the case described below illustrates. When Pan Am tried to introduce jet planes for travel in the US and across the Atlantic, it generated a battle that lasted more than two years. The public agency that operated all three major airports in the New York region - the Port Authority - had been designed to encourage its officials to emphasize scientifically based analysis in setting policy; and the agency's leader, Austin Tobin, had developed a strong reputation for political independence and integrity. He also had previous encounters with the airlines, described below, leading him to be suspicious of their assertion that jet planes were not unduly noisy. Therefore, to test jet noise, he recruited the nation's premier acoustical engineer, Leo Beranek, and when Beranek concluded that jets were perceived to be much louder than expected, the aircraft industry fought back, challenging the findings, appealing to federal officials, and alleging that Tobin might be corrupt. After two years of conflict, the airplane industry capitulated, and in a few years the standards developed for the New York airports were embraced by airport managers across the United States and Europe. -
Complexity, Symmetry and Strong Correlations
Jak Chakhalian COMPLEXITY, SYMMETRY AND Solid State Physics 601 STRONG CORRELATIONS Fall 2017 Phenomena Emerging from Complexity APPROACH TO COMPLEX PHENOMENA reductionism and emergence 3 Exploring the Unit materials which deform under stress, like polymers, liquids, colloids, and granular materials. The written text for this unit focuses on solid state physics, whereas the video touches on both solid state and soft condensed matter. In today’s session, we will focus on emergence in condensed matter physics: both solid-state and soft condensed matter. By some accounts, all of condensed matter physics can be considered emergent. The simplest definition of emergence is the interaction of individual pieces, following simple rules, which leads to collective behavior. There is no leader, or top-down control in such systems—the collective behavior comes from the bottom-up interaction of many individuals. In flocking, for example, each bird is following simple rules: Stay close to your neighbors, but not too close, and avoid predators. From these rules comes surprisingly coherent behavior of the flock as a whole. (Note: In particular, non-linear interactions, in which the character of the interaction changes with some parameter, like distance, lead to surprising behavior. In this way, complex behavior is not simply the additive sum of many individual interactions.) WHAT IS EMERGENCE ? Here is a definition of emergence from the National Academies: 3 Emergent phenomena in condensed-matter and materials physics are those that cannot be understood with models that treat the motions of the individual particles within the material independently. Instead, the essence of emergent phenomena lies in the complex interactions between many particles that result in the diverse behavior and often unpredictable collective motion of many particles. -
Acoustic Phonetics Kenneth Stevens Pdf
Acoustic phonetics kenneth stevens pdf Continue This book presents the theory of the speech sound of a generation in the human vocal system. This long-awaited work represents the theory of the speech-sound generation in the human vocal system. Comprehensive acoustic theory serves as one of the foundations for determining the categories of speech sound used to create differences between words in languages. The author begins by reviewing the anatomy and physiology of speech products, then covering the original mechanisms, vocal tract as an acoustic filter, relevant aspects of auditory psychophysics and physiology, as well as phonological presentations. In other chapters, he presents a detailed study of vowels, consonants and the impact of context on the production of speech sound. Although it focuses mainly on the sounds of the English language, it briefly touches on sounds in other languages. The book will serve as a reference for speech scientists, speech therapists, linguists interested in phonetics and phonology, psychologists interested in speech perception and production, as well as engineers interested in processing speech applications. Whenever someone - a linguist, speech pathologist, or communications engineer - wants to know why the acoustic structure of a particular sound is as it is, it is the book to which they will turn. There is absolutely no other book with anything like this depth of coverage. - Peter Ladefoged, Professor of Phonetics Honorary, University of California, Los Angeles This long-awaited work represents the theory of the speech sound of a generation in the human vocal system. Comprehensive acoustic theory serves as one of the foundations for determining the categories of speech sound used to create differences between words in languages. -
The Conflicting Case of Lev Davidovich Landau's Cerebral Death
International Journal of Humanities Social Sciences and Education (IJHSSE) Volume 5, Issue 3, March 2018, PP 30-35 ISSN 2349-0373 (Print) & ISSN 2349-0381 (Online) http://dx.doi.org/10.20431/2349-0381.0503003 www.arcjournals.org The Conflicting Case of Lev Davidovich Landau's Cerebral Death Celso Luis Levada1, Huemerson Maceti2, Ivan José Lautenschleguer3, Miriam de Magalhães Oliveira Levada4 1, 2, 3, 4 Teaching Group of Sciences of Herminio Ometto Foundation - Uniararas /Brazil *Corresponding Author: Celso Luis Levada, Teaching Group of Sciences of Herminio Ometto Foundation - Uniararas /Brazil Abstract: On April 1, 2018, it will complete fifty years of the death of one of the scientists who contributed most to the development of physics in the 20th century, the Russian Lev Davidovich Landau. He was born on January 22, 1908 in Baku, Azerbaijan, in what was then the Russian Empire. He was a prominent soviet physicist who made fundamental contributions to many areas of theoretical physics. He received the 1962 Nobel Prize in Physics for his theory of super fluidity that accounts for the properties of liquid helium. On January, 1962, Landau was seriously injured in an automobile accident and remained three months in a coma, being declared clinically dead four times. Recovered, he lived another six years. Landau died on April, 1968, aged 60, from complications from the accident. The case involving Landau introduces a conflict related to the removal of organs from people believed to be brain dead. Keywords: Landau, Nobel Prize Physics, Brain Death. 1. INTRODUCTION Landau was born in Baku, Azerbaijan, on January 22, 1908, the son of an oil engineer and a doctor.