History Newsletter CENTER for HISTORY of PHYSICS&NIELS BOHR LIBRARY & ARCHIVES Vol
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
People and Things
People and things John Cumalat and David Neuffer, first Robert R. Wilson Fellows at Fermilab. The Wilson fellowships are special three year appointments awarded annually at Fermilab to outstanding young physicists in the fields of accelerators and particle physics. On people Accelerator specialist Ernie Courant is the recipient of the 1979 Boris Pregel A ward for Applied Science and Technology. The presentation was made at the annual meeting of the New York Academy of Sciences on 6 December. Giving cancer treatments at TRIUMF The first treatment of cancer patients began at TRIUMF in Nov ember using the negative pion beam from the biomedical channel. In this first series, patients with multiple skin tumour nodules are receiving ten daily treatments. In order to assess the effect of negative pions on human tissue, some of the nodules are being treated with pions and others with X-rays. Only when this is known can treatment of larger, deep-seated tumours com mence. The treatments at TRIUMF have been preceded by comprehen sive pre-clinical investigations in cluding both physical and radiobio logical studies, the latter including cultured cells, mice and pigs. Conferences on the horizon The Sixth International Conference on Experimental Meson Spectro scopy will be held at Brookhaven on 24-25 April. The Conference will cover experimental results in light and heavy quark spectroscopy, rele vant theory and spectrometer sys tems. For further information please contact CU. Chung or S.J. Linden- baum, Brookhaven National Labo ratory, Upton, New York 11973. The Mark II detector, previously used in experiments at SPEAR, seen here being installed in one of the experimental areas of the new PEP electron-positron collider. -
The Invention of the Transistor
The invention of the transistor Michael Riordan Department of Physics, University of California, Santa Cruz, California 95064 Lillian Hoddeson Department of History, University of Illinois, Urbana, Illinois 61801 Conyers Herring Department of Applied Physics, Stanford University, Stanford, California 94305 [S0034-6861(99)00302-5] Arguably the most important invention of the past standing of solid-state physics. We conclude with an century, the transistor is often cited as the exemplar of analysis of the impact of this breakthrough upon the how scientific research can lead to useful commercial discipline itself. products. Emerging in 1947 from a Bell Telephone Laboratories program of basic research on the physics I. PRELIMINARY INVESTIGATIONS of solids, it began to replace vacuum tubes in the 1950s and eventually spawned the integrated circuit and The quantum theory of solids was fairly well estab- microprocessor—the heart of a semiconductor industry lished by the mid-1930s, when semiconductors began to now generating annual sales of more than $150 billion. be of interest to industrial scientists seeking solid-state These solid-state electronic devices are what have put alternatives to vacuum-tube amplifiers and electrome- computers in our laps and on desktops and permitted chanical relays. Based on the work of Felix Bloch, Ru- them to communicate with each other over telephone dolf Peierls, and Alan Wilson, there was an established networks around the globe. The transistor has aptly understanding of the band structure of electron energies been called the ‘‘nerve cell’’ of the Information Age. in ideal crystals (Hoddeson, Baym, and Eckert, 1987; Actually the history of this invention is far more in- Hoddeson et al., 1992). -
Iowa State University Department Codes
Iowa State University Department Codes August 09, 2021 RMM RESOURCE PARENT CROSS- NUMERIC ALPHA UNIT DEPT DISCIPLINARY CODE CODE DIRECTORY NAME FULL NAME ADDRESS PHONE NUMBER NUMBER DEPT NUMBER 30141 4HFDN 4-H FOUNDATION 4-H FOUNDATION 2150 BDSHR (515) 294-5390 030 01130 A B E AG/BIOSYS ENG AGRICULTURAL & BIOSYSTEMS ENGINEERING 1201 SUKUP (515) 294-1434 001 01132 A E AG ENGINEERING AGRICULTURAL ENGINEERING 100 DAVIDSON (515) 294-1434 01130 01581 A ECL ANIMAL ECOLOGY ANIMAL ECOLOGY 253 BESSEY (515) 294-1458 01580 92290 A I C ACUMEN IND CORP ACUMEN INDUSTRIES CORPORATION 1613 RSRC PARK (515) 296-5366 999 45000 A LAB AMES LABORATORY AMES LABORATORY OF US DOE 151 TASF (515) 294-2680 020 10106 A M D APPAREL MERCH D APPAREL MERCHANDISING AND DESIGN 31 MACKAY (515) 294-7474 10100 80620 A S C APPL SCI COMPUT APPLIED SCIENTIFIC COMPUTING (515) 294-2694 999 10706 A TR ATH TRAIN ATHLETIC TRAINING 235 FORKER BLDG (515) 294-8009 10700 07040 A V C ART/VISUAL CULT ART AND VISUAL CULTURE 146 DESIGN (515) 294-5676 007 70060 A&BE AG & BIOSYS ENG AGRICULTURAL AND BIOSYSTEMS ENGINEERING (515) 294-1434 999 92100 AAT ADV ANAL TCH ADVANCED ANALYTICAL TECHNOLOGIES INC ISU RSRC PARK (515) 296-6600 999 02010 ABE AG/BIOSYS ENG-E AGRICULTURAL & BIOSYSTEMS ENGR - ENGR 1201 SUKUP (515) 294-1434 002 01136 ABE A AG/BIOSYS ENG-A AGRICULTURAL & BIOSYSTEMS ENGR - AGLS 1201 SUKUP (515) 294-1434 01130 08100 ACCT ACCOUNTING ACCOUNTING 2330 GERDIN (515) 294-8106 008 08301 ACSCI ACTUARIAL SCI ACTUARIAL SCIENCE (515) 294-4668 008 10501 AD ED ADULT ED ADULT EDUCATION N131 LAGOMAR -
Ira Sprague Bowen Papers, 1940-1973
http://oac.cdlib.org/findaid/ark:/13030/tf2p300278 No online items Inventory of the Ira Sprague Bowen Papers, 1940-1973 Processed by Ronald S. Brashear; machine-readable finding aid created by Gabriela A. Montoya Manuscripts Department The Huntington Library 1151 Oxford Road San Marino, California 91108 Phone: (626) 405-2203 Fax: (626) 449-5720 Email: [email protected] URL: http://www.huntington.org/huntingtonlibrary.aspx?id=554 © 1998 The Huntington Library. All rights reserved. Observatories of the Carnegie Institution of Washington Collection Inventory of the Ira Sprague 1 Bowen Papers, 1940-1973 Observatories of the Carnegie Institution of Washington Collection Inventory of the Ira Sprague Bowen Paper, 1940-1973 The Huntington Library San Marino, California Contact Information Manuscripts Department The Huntington Library 1151 Oxford Road San Marino, California 91108 Phone: (626) 405-2203 Fax: (626) 449-5720 Email: [email protected] URL: http://www.huntington.org/huntingtonlibrary.aspx?id=554 Processed by: Ronald S. Brashear Encoded by: Gabriela A. Montoya © 1998 The Huntington Library. All rights reserved. Descriptive Summary Title: Ira Sprague Bowen Papers, Date (inclusive): 1940-1973 Creator: Bowen, Ira Sprague Extent: Approximately 29,000 pieces in 88 boxes Repository: The Huntington Library San Marino, California 91108 Language: English. Provenance Placed on permanent deposit in the Huntington Library by the Observatories of the Carnegie Institution of Washington Collection. This was done in 1989 as part of a letter of agreement (dated November 5, 1987) between the Huntington and the Carnegie Observatories. The papers have yet to be officially accessioned. Cataloging of the papers was completed in 1989 prior to their transfer to the Huntington. -
Samuel Goudsmit
NATIONAL ACADEMY OF SCIENCES SAMUEL ABRAHAM GOUDSMIT 1 9 0 2 — 1 9 7 8 A Biographical Memoir by BENJAMIN BEDERSON Any opinions expressed in this memoir are those of the author and do not necessarily reflect the views of the National Academy of Sciences. Biographical Memoir COPYRIGHT 2008 NATIONAL ACADEMY OF SCIENCES WASHINGTON, D.C. Photograph courtesy Brookhaven National Laboratory. SAMUEL ABRAHAM GOUDSMIT July 11, 1902–December 4, 1978 BY BENJAMIN BEDERSON AM GOUDSMIT LED A CAREER that touched many aspects of S20th-century physics and its impact on society. He started his professional life in Holland during the earliest days of quantum mechanics as a student of Paul Ehrenfest. In 1925 together with his fellow graduate student George Uhlenbeck he postulated that in addition to mass and charge the electron possessed a further intrinsic property, internal angular mo- mentum, that is, spin. This inspiration furnished the missing link that explained the existence of multiple spectroscopic lines in atomic spectra, resulting in the final triumph of the then struggling birth of quantum mechanics. In 1927 he and Uhlenbeck together moved to the United States where they continued their physics careers until death. In a rough way Goudsmit’s career can be divided into several separate parts: first in Holland, strictly as a theorist, where he achieved very early success, and then at the University of Michigan, where he worked in the thriving field of preci- sion spectroscopy, concerning himself with the influence of nuclear magnetism on atomic spectra. In 1944 he became the scientific leader of the Alsos Mission, whose aim was to determine the progress Germans had made in the development of nuclear weapons during World War II. -
Highlights Se- Mathematics and Engineering— the Lead Signers of the Letter Exhibit
June 2003 NEWS Volume 12, No.6 A Publication of The American Physical Society http://www.aps.org/apsnews Nobel Laureates, Industry Leaders Petition April Meeting Prizes & Awards President to Boost Science and Technology Prizes and Awards were presented to seven- Sixteen Nobel Laureates in that “unless remedied, will affect call for “a Presidential initiative for teen recipients at the Physics and sixteen industry lead- our scientific and technological FY 2005, following on from your April meeting in Philadel- ers have written to President leadership, thereby affecting our budget of FY 2004, and focusing phia. George W. Bush to urge increas- economy and national security.” on the long-term research portfo- After the ceremony, ing funding for physical sciences, The letter, which is dated April lios of DOE, NASA, and the recipients and their environmental sciences, math- 14th, also indicates that “the Department of Commerce, in ad- guests gathered at the ematics, computer science and growth in expert personnel dition to NSF and NIH,” that, Franklin Institute for a engineering. abroad, combined with the di- “would turn around a decade-long special reception. The letter, reinforcing a recent minishing numbers of Americans decline that endangers the future Photo Credit: Stacy Edmonds of Edmonds Photography Council of Advisors on Science and entering the physical sciences, of our nation.” The top photo shows four of the five women recipients in front of a space-suit Technology report, highlights se- mathematics and engineering— The lead signers of the letter exhibit. They are (l to r): Geralyn “Sam” Zeller (Tanaka Award); Chung-Pei rious funding problems in the an unhealthy trend—is leading were Burton Richter, director Michele Ma (Maria-Goeppert Mayer Award); Yvonne Choquet-Bruhat physical sciences and related fields corporations to locate more of emeritus of SLAC, and Craig (Heineman Prize); and Helen Edwards (Wilson Prize). -
Slides for 1920 and 1928)
Quantum Theory Matters with thanks to John Clarke Slater (1900{1976), Per-Olov L¨owdin(1916{2000), and the many members of QTP (Gainesville, FL, USA) and KKUU (Uppsala, Sweden) Nelson H. F. Beebe Research Professor University of Utah Department of Mathematics, 110 LCB 155 S 1400 E RM 233 Salt Lake City, UT 84112-0090 USA Email: [email protected], [email protected], [email protected] (Internet) WWW URL: http://www.math.utah.edu/~beebe Telephone: +1 801 581 5254 FAX: +1 801 581 4148 Nelson H. F. Beebe (University of Utah) QTM 11 November 2015 1 / 1 11 November 2015 The periodic table of elements All from H (1) to U (92), except Tc (43) and Pm (61), are found on Earth. Nelson H. F. Beebe (University of Utah) QTM 11 November 2015 2 / 1 Correcting a common misconception Scientific Theory: not a wild @$$#% guess, but rather a mathematical framework that allows actual calculation for known systems, and prediction for unknown ones. Nelson H. F. Beebe (University of Utah) QTM 11 November 2015 3 / 1 Scientific method Theories should be based on minimal sets of principles, and be free of preconceived dogmas, no matter how widely accepted. [Remember Archimedes, Socrates, Hypatia, Galileo, Tartaglia, Kepler, Copernicus, Lavoisier, . ] Open publication and free discussion of physical theories and experimental results, so that others can criticize them, improve them, and reproduce them. Know who pays for the work, and judge accordingly! Science must have public support. History shows that such support is paid back many times over. If it ain't repeatable, it ain't science! Nelson H. -
Title: the Distribution of an Illustrated Timeline Wall Chart and Teacher's Guide of 20Fh Century Physics
REPORT NSF GRANT #PHY-98143318 Title: The Distribution of an Illustrated Timeline Wall Chart and Teacher’s Guide of 20fhCentury Physics DOE Patent Clearance Granted December 26,2000 Principal Investigator, Brian Schwartz, The American Physical Society 1 Physics Ellipse College Park, MD 20740 301-209-3223 [email protected] BACKGROUND The American Physi a1 Society s part of its centennial celebration in March of 1999 decided to develop a timeline wall chart on the history of 20thcentury physics. This resulted in eleven consecutive posters, which when mounted side by side, create a %foot mural. The timeline exhibits and describes the millstones of physics in images and words. The timeline functions as a chronology, a work of art, a permanent open textbook, and a gigantic photo album covering a hundred years in the life of the community of physicists and the existence of the American Physical Society . Each of the eleven posters begins with a brief essay that places a major scientific achievement of the decade in its historical context. Large portraits of the essays’ subjects include youthful photographs of Marie Curie, Albert Einstein, and Richard Feynman among others, to help put a face on science. Below the essays, a total of over 130 individual discoveries and inventions, explained in dated text boxes with accompanying images, form the backbone of the timeline. For ease of comprehension, this wealth of material is organized into five color- coded story lines the stretch horizontally across the hundred years of the 20th century. The five story lines are: Cosmic Scale, relate the story of astrophysics and cosmology; Human Scale, refers to the physics of the more familiar distances from the global to the microscopic; Atomic Scale, focuses on the submicroscopic This report was prepared as an account of work sponsored by an agency of the United States Government. -
ED093664.Pdf
DOCUMENT RESUME ED 093 664 SE 017 755 TITLE National Science Foundation Annual Report 1973. INSTITUTION National Science Foundation, Washington, D.C. REPORT NO NSF-74-1 PUB DATE 73 NOTE 127p. AVAILABLE FROMSuperintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402 ($2.35) EDRS PRICE MF-$0.75 HC-$6.60 PLUS POSTAGE DESCRIPTORS *Aunual Reports; Mathematics Education; *Program Descriptions; Research; *Research Projects; Science Education; Sciences; Scientific Research; Teacher Education IDENTIFIERS *National Science Foundation ABSTRACT Statistics on the allotment of funds and descriptions of activities carried out under the auspices of the National Science Foundation (NSF) in 1973 are reported. Details are provided for activities in the categories of:(1) research project support, (2). national and international programs,(3) research applications, (it): science education research and programs, and (5) science resources and policy studies. Among the appendices are a listing of staff, advisory committee, and panel members; details cf organization changes and appointments; a financial report for 1973; a description of patents resulting from NSF-supported activities; a publications list; and a list of national research centers' contractors. (RE) Ii National Science U.S. DEPARTMENT OF HEALTH, ' EDUCATION 8 WELFARE Foundation NATIONAL INSTITUTE OF EDUCATION THIS DOCUMENT HAS BEEN REPRO DUCED EXACTLY AS RECEIVED FROM THE PERSON OR ORGANIZATION ORIGIN MING IT POINTS OF VIEW OR OPINIONS Annual Report 0 STATED DO NOT NECESSARILY REPRE re1 SENT OFFICIAL NATIONAL INSTITUTE OF 90' EDUCATION POSITION OR POLICY. 1973 Letter of Transmittal Washington, D.C. DEAR MR. PRESIDENT: I have the honor to transmit herewith the Annual Report for Fiscal Year 1973 of the National Science Foundation for submission to the Congress as required by the National Science Foundation Act of 1950. -
Laser Spectroscopy to Resolve Hyperfine Structure of Rubidium
Laser spectroscopy to resolve hyperfine structure of rubidium Hannah Saddler, Adam Egbert, and Will Weigand (Dated: 12 November 2015) This experiment had two main goals: to create an absorption spectrum for rubidium using the technique of absorption spectroscopy and to resolve the hyperfine structures for the two rubidium isotopes using saturation absorption spectroscopy. The absorption spectrum was used to determine the frequency difference between the ground state and first excited state for both isotopes. The calculated frequency difference was 6950 MHz ± 90 MHz for rubidium 87 and 3060 MHz ± 60 MHz for rubidium 85. Both values agree with the literature values. The hyperfine structure for rubidium 87 was able to be resolved using this experimental setup. The energy differences were determined to be 260 MHz ± 10 MHz and 150 MHz ± 10 Mhz MHz. The hyperfine structure for rubidium 85 was unable to be resolved using this experimental setup. Additionally the theory of doppler broadening was used to make measurements of the full width half maximum. These values were used to calculate a temperature of 310K ± 40 K which makes sense because the experiments were performed at room temperature. I. INTRODUCTION in the theory section and how they were manipulated and used to derive the results from the recorded data. Addi- tionally there is an explanation of experimental error and The era of modern spectroscopy began with the in- uncertainty associated the results. Section V is a conclu- vention of the laser. The word laser was originally an sion that ties the results of the experiment we performed acronym that stood for light amplification by stimulated to the usefulness of the technique of laser spectroscopy. -
Harvey Fletcher and Henry Eyring: Men of Faith and Science
Edward L. Kimball Harvey Fletcher and Henry Eyring: Men of Faith and Science The year 1981 saw the deaths of Harvey Fletcher and Henry Eyring, men of great religious faith whose superb professional achievements placed them in the first ranks of the nation's scientists. (See Steven H. Heath's "The Reconcilia- tion of Faith and Science: Henry Eyring's Achievement," this issue.) Both could be said to have had simple religious faith — not because they were un- complicated people incapable of subtlety, but because their religious character was early and firmly grounded in a few fundamentals. This freed them from a life of continuing doubt and struggle. The two men, seventeen years apart in age, had a kind of family relation- ship. Henry Eyring's uncle Carl Eyring (after whom BYU's Eyring Science Center is named) married Fern Chipman; Harvey Fletcher married her sister Lorena. After their spouses died, Harvey Fletcher and Fern Chipman Eyring married. As a result, Henry Eyring called him Uncle Harvey. But that was not unique. Nearly everyone else did, too. Harvey Fletcher was born in 1884 in a little frame house in Provo, Utah. Among his memories are attending the dedication of the Salt Lake Temple and shaking President Wilford Woodruff's hand. As a young boy, he recited a short poem at a program in the Provo Tabernacle; and after he finished, Karl G. Maeser, principal of the Brigham Young Academy, stopped him before he could resume his seat, put his hand on Harvey's head, and said, "I want this congregation to know that this little boy will one day be a great man." Instead of being pleased, Harvey was bothered; he perceived it as a prediction of politi- cal leadership, which he did not want. -
Date: To: September 22, 1 997 Mr Ian Johnston©
22-SEP-1997 16:36 NOBELSTIFTELSEN 4& 8 6603847 SID 01 NOBELSTIFTELSEN The Nobel Foundation TELEFAX Date: September 22, 1 997 To: Mr Ian Johnston© Company: Executive Office of the Secretary-General Fax no: 0091-2129633511 From: The Nobel Foundation Total number of pages: olO MESSAGE DearMrJohnstone, With reference to your fax and to our telephone conversation, I am enclosing the address list of all Nobel Prize laureates. Yours sincerely, Ingr BergstrSm Mailing address: Bos StU S-102 45 Stockholm. Sweden Strat itddrtSMi Suircfatan 14 Teleptelrtts: (-MB S) 663 » 20 Fsuc (*-«>!) «W Jg 47 22-SEP-1997 16:36 NOBELSTIFTELSEN 46 B S603847 SID 02 22-SEP-1997 16:35 NOBELSTIFTELSEN 46 8 6603847 SID 03 Professor Willis E, Lamb Jr Prof. Aleksandre M. Prokhorov Dr. Leo EsaJki 848 North Norris Avenue Russian Academy of Sciences University of Tsukuba TUCSON, AZ 857 19 Leninskii Prospect 14 Tsukuba USA MSOCOWV71 Ibaraki Ru s s I a 305 Japan 59* c>io Dr. Tsung Dao Lee Professor Hans A. Bethe Professor Antony Hewlsh Department of Physics Cornell University Cavendish Laboratory Columbia University ITHACA, NY 14853 University of Cambridge 538 West I20th Street USA CAMBRIDGE CB3 OHE NEW YORK, NY 10027 England USA S96 014 S ' Dr. Chen Ning Yang Professor Murray Gell-Mann ^ Professor Aage Bohr The Institute for Department of Physics Niels Bohr Institutet Theoretical Physics California Institute of Technology Blegdamsvej 17 State University of New York PASADENA, CA91125 DK-2100 KOPENHAMN 0 STONY BROOK, NY 11794 USA D anni ark USA 595 600 613 Professor Owen Chamberlain Professor Louis Neel ' Professor Ben Mottelson 6068 Margarldo Drive Membre de rinstitute Nordita OAKLAND, CA 946 IS 15 Rue Marcel-Allegot Blegdamsvej 17 USA F-92190 MEUDON-BELLEVUE DK-2100 KOPENHAMN 0 Frankrike D an m ar k 599 615 Professor Donald A.