Guide to the Subrahmanyan Chandrasekhar Papers 1913-2011
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PDF of Final Newspaper
Faculty members What began with Commuters: INSIDE honored for graduate Superphone in 1981, Put down your car teaching says ‘Goodbye’ today keys and step off THIS ISSUE that bus Page 3 Page 8 Page 7 THURSDAY, JUNE 11, 2009 VOL. 28 / NO. 18 Farewell ... to print Chronicle’s 28-year run ends today, as news delivery evolves As the University prepares slated for fall 2009, and it will a new generation of electronic provide a platform for a family publications for faculty, staff, of new reports tailored to the students and friends, the interests of different segments University of Chicago Chronicle is of the University community, publishing its final issue. outside media and interested The University News Office observers around the world. In launched the Chronicle 28 years a world increasingly accustomed ago as a way to speak directly to to instant information, all these the University community, at improvements offer timely news a time when newspapers were and updates. a firmly established habit and “We are providing more print provided one of the most information about the University, Artist renderings courtesy of Hoerr Schaudt economical ways to reach a large to more people, in more ways An artist’s renderings provide a view looking west of the current and proposed changes to the streets and number of people. than ever before,” said Julie walkways on the Main Quadrangles. But reading habits have Peterson, Vice President for changed dramatically in recent Communications. “With that years. A survey of Chronicle comes an unprecedented effort to readers this spring showed that 96 reach out to our most important Summer project aimed at making Main percent get some or most of their constituents, the University news from the Internet. -
Al-Nahl Volume 13 Number 3
Q3/2003 Vol. 13 No. 3 Al-Nahl A Quarterly Publication of Majlis Ansarullah, U.S.A. Baitul-Futuh: Islamic jewel in the heart of England. Exterior and Interior views. Special Issue of the Al-Nahl on the Life of Hadrat Dr. Mufti Muhammad Sadiq, radiyallahu ‘anhu. 60 pages, $2. Special Issue on Dr. Abdus Salam. 220 pages, 42 color and B&W pictures, $3. Ansar Ansar (Ansarullah News) is published monthly by Majlis Ansarullah U.S.A. and is sent free of charge to all Ansar in the U.S. Ordering Information: Send a check or money order in the indicated amount along with your order to Chaudhary Mushtaq Ahmad, 15000 Good Hope Rd, Silver Spring, MD 20905. Price includes shipping and handling within the continental U.S. Conditions of Bai‘at, Pocket-Size Edition Majlis Ansarullah, U.S.A. has published the ten conditions of initiation into the Ahmadiyya Muslim Community in pocket size brochure. Contact your local officials for a free copy or write to Ansar Publications, 15000 Good Hope Rd, Silver Spring MD 20905. Razzaq and Farida A story for children written by Dr. Yusef A. Lateef. Children and new Muslims, all can read and enjoy this story. It makes a great gift for the children of Ahmadi, Non-Ahmadi and Non- Muslim relatives, friends and acquaintances. The book contains colorful drawings. Please send $1.50 per copy to Chaudhary Mushtaq Ahmad, 15000 Good Hope Rd, Silver Spring, MD 20905 with your mailing address and phone number. Majlis Ansarullah U.S.A. will pay the postage and handling within the continental U.S. -
Hendrik Antoon Lorentz's Struggle with Quantum Theory A. J
Hendrik Antoon Lorentz’s struggle with quantum theory A. J. Kox Archive for History of Exact Sciences ISSN 0003-9519 Volume 67 Number 2 Arch. Hist. Exact Sci. (2013) 67:149-170 DOI 10.1007/s00407-012-0107-8 1 23 Your article is published under the Creative Commons Attribution license which allows users to read, copy, distribute and make derivative works, as long as the author of the original work is cited. You may self- archive this article on your own website, an institutional repository or funder’s repository and make it publicly available immediately. 1 23 Arch. Hist. Exact Sci. (2013) 67:149–170 DOI 10.1007/s00407-012-0107-8 Hendrik Antoon Lorentz’s struggle with quantum theory A. J. Kox Received: 15 June 2012 / Published online: 24 July 2012 © The Author(s) 2012. This article is published with open access at Springerlink.com Abstract A historical overview is given of the contributions of Hendrik Antoon Lorentz in quantum theory. Although especially his early work is valuable, the main importance of Lorentz’s work lies in the conceptual clarifications he provided and in his critique of the foundations of quantum theory. 1 Introduction The Dutch physicist Hendrik Antoon Lorentz (1853–1928) is generally viewed as an icon of classical, nineteenth-century physics—indeed, as one of the last masters of that era. Thus, it may come as a bit of a surprise that he also made important contribu- tions to quantum theory, the quintessential non-classical twentieth-century develop- ment in physics. The importance of Lorentz’s work lies not so much in his concrete contributions to the actual physics—although some of his early work was ground- breaking—but rather in the conceptual clarifications he provided and his critique of the foundations and interpretations of the new ideas. -
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. -
Einstein's Mistakes
Einstein’s Mistakes Einstein was the greatest genius of the Twentieth Century, but his discoveries were blighted with mistakes. The Human Failing of Genius. 1 PART 1 An evaluation of the man Here, Einstein grows up, his thinking evolves, and many quotations from him are listed. Albert Einstein (1879-1955) Einstein at 14 Einstein at 26 Einstein at 42 3 Albert Einstein (1879-1955) Einstein at age 61 (1940) 4 Albert Einstein (1879-1955) Born in Ulm, Swabian region of Southern Germany. From a Jewish merchant family. Had a sister Maja. Family rejected Jewish customs. Did not inherit any mathematical talent. Inherited stubbornness, Inherited a roguish sense of humor, An inclination to mysticism, And a habit of grüblen or protracted, agonizing “brooding” over whatever was on its mind. Leading to the thought experiment. 5 Portrait in 1947 – age 68, and his habit of agonizing brooding over whatever was on its mind. He was in Princeton, NJ, USA. 6 Einstein the mystic •“Everyone who is seriously involved in pursuit of science becomes convinced that a spirit is manifest in the laws of the universe, one that is vastly superior to that of man..” •“When I assess a theory, I ask myself, if I was God, would I have arranged the universe that way?” •His roguish sense of humor was always there. •When asked what will be his reactions to observational evidence against the bending of light predicted by his general theory of relativity, he said: •”Then I would feel sorry for the Good Lord. The theory is correct anyway.” 7 Einstein: Mathematics •More quotations from Einstein: •“How it is possible that mathematics, a product of human thought that is independent of experience, fits so excellently the objects of physical reality?” •Questions asked by many people and Einstein: •“Is God a mathematician?” •His conclusion: •“ The Lord is cunning, but not malicious.” 8 Einstein the Stubborn Mystic “What interests me is whether God had any choice in the creation of the world” Some broadcasters expunged the comment from the soundtrack because they thought it was blasphemous. -
Department of Physics and Astronomy 1
Department of Physics and Astronomy 1 PHSX 216 and PHSX 236, provide a calculus-based foundation in Department of Physics physics for students in physical science, engineering, and mathematics. PHSX 313 and the laboratory course, PHSX 316, provide an introduction and Astronomy to modern physics for majors in physics and some engineering and physical science programs. Why study physics and astronomy? Students in biological sciences, health sciences, physical sciences, mathematics, engineering, and prospective elementary and secondary Our goal is to understand the physical universe. The questions teachers should see appropriate sections of this catalog and major addressed by our department’s research and education missions range advisors for guidance about required physics course work. Chemistry from the applied, such as an improved understanding of the materials that majors should note that PHSX 211 and PHSX 212 are prerequisites to can be used for solar cell energy production, to foundational questions advanced work in chemistry. about the nature of mass and space and how the Universe was formed and subsequently evolved, and how astrophysical phenomena affected For programs in engineering physics (http://catalog.ku.edu/engineering/ the Earth and its evolution. We study the properties of systems ranging engineering-physics/), see the School of Engineering section of the online in size from smaller than an atom to larger than a galaxy on timescales catalog. ranging from billionths of a second to the age of the universe. Our courses and laboratory/research experiences help students hone their Graduate Programs problem solving and analytical skills and thereby become broadly trained critical thinkers. While about half of our majors move on to graduate The department offers two primary graduate programs: (i) an M.S. -
Guide to the Michael Danos Papers 1950-2003
University of Chicago Library Guide to the Michael Danos Papers 1950-2003 © 2007 University of Chicago Library Table of Contents Descriptive Summary 3 Information on Use 3 Access 3 Citation 3 Biographical Note 3 Scope Note 4 Related Resources 4 Subject Headings 4 INVENTORY 5 Series I: Personal Materials 5 Series II: Research and Writing 7 Series III: Lectures & Conferences 12 Series IV: Reprints 14 Series V: Restricted Materials 15 Series VI: Oversize Documents 19 Descriptive Summary Identifier ICU.SPCL.MDANOS Title Danos, Michael. Papers Date 1950-2003 Size 15.75 linear feet (29 boxes) Repository Special Collections Research Center University of Chicago Library 1100 East 57th Street Chicago, Illinois 60637 U.S.A. Abstract Michael Danos was a theoretical physicist who worked in photonuclear physics, relativistic heavy ions and x-ray imaging devices, and spent several years as a Visiting Scholar at the Enrico Fermi Institute. The Michael Danos Papers consist of 15.75 linear feet of correspondence, calendars, writings, notebooks, clippings, transparencies, conference materials, photographs, blueprints and diagrams, and computer disks. Information on Use Access Series V (Boxes 20-28) contains restricted material. Much of this material contains legal correspondence, and is therefore restricted indefinitely. Box 28 contains computer disks in obsolescent formats; access requires staff review and possible reformatting. The remainder of the collection is unrestricted and open for research. Citation When quoting material from this collection, the preferred citation is: Danos, Michael. Papers [Box #, Folder #], Special Collections Research Center, University of Chicago Library Biographical Note Michael Danos was born in Latvia in 1922, the son of a Hungarian opera singer stranded in that country by the outbreak of World War I. -
Urdu Syllabus
TUMKUR UINIVERSITY DEPARTMENT OF URDU'. SYLLABUS AND TEXT BOOKS UNDER CBCS SCHEME LANGUAGE URDU lst Semester B.A./llsc/B.com/BBM/BCA lffect From 20!6-tz lst Semester B.A. Svllabus: Texts: I' 1. Collection of Prose and Poetry Urdu Language Text Book for First Semister B.A.: Edited by: URDU BOS (UG) (Printed and Published by prasaranga, Bangarore university, Bangalore) 2. Non-detail : Selected 4 Chapters From Text Book Reference Books: 1. Yadgaray Hali Saleha Aabid Hussain 2. lqbal Ka Narang QopiChandt 'i Page 1 z' i!. .F}*$T g_€.9f.*g.,,,E B'A BE$BEE CBU R$E Eenlcprqrerlh'ed:.Ufifi9 TFXT B €KeCn e,A I SEMESTER, : ,1 1;5:. -ll-=-- -i- - 1. padiye Gar Bcemar. 'M,tr*hf ag:A.hmgd-$tib.uf i 1.,gglrEdnre:a E*yl{arsfrt$ay Khwaja Hasan Nizarni 3" M_ugalrnanen Ki GurashthaTaleem Shibll Nomani +. lfilopatra N+y,Ek Moti €hola Sclence Ki Duniya : 5. g,€land:|4i$ ..- Manarir,Aashiq flarganvi PelfTR.Y i X., Hazrathfsmail Ki Viladat .FJafeez,J*lan*ari Naath 2. Hsli Mir.*e6halib 3. lqbal 4. T*j &Iahat 5*-e-ubipe.t{i Saher Ludhianawi ,,, lqbal, Amjad, Akbar {Z Eaehf 6g'**e€{F} i ': 1.. 6azaf W*& 2;1 ' 66;*; JaB:Flis,qf'*kfiit" 4., : €*itrl $hmed Fara:, 4. €azgl Firaq ,5; *- ,Elajrooh 6, Gqzal Shahqr..Y.aar' V. Gazal tiiarnsp{.4i1sruu ' 8. Gaal Narir Kqgrnt NG$I.SE.f*IL.: 1- : .*akF*!h*s ,&ri*an Ch*lrdar; 3. $alartrf,;oat &jendar.Sixgir.Ee t 3-, llfar*€,Ffate Tariq.€-hil*ari 4',,&alandar t'- €hig*lrl*tn:Ftyder' Ah*|.,9 . -
Inspec Archive - List of Journals Covered Between 1898 and 1968
February 2006 www.iee.org/inspec Inspec Archive - List of Journals Covered between 1898 and 1968 Abhandlungen der Berlin Akademie Acta Universitatis Lundensis. Sectio II. Medica, Abhandlungen der Braunschweigischen Mathematica, Scientiae Rerum Naturalium Wissenschaftlichen Gesellschaft Acta Universitatis Tamperensis Abhandlungen der Deutschen Akademie der Acustica Wissenschaften zu Berlin, Klasse fur Advanced Energy Conversion Mathematik, Physik und Technik Advances in Atomic and Molecular Physics Abhandlungen der Konigliches Preussisches Advances in Electronics Meteorologies Institut Advances in Physics Abhandlungen der Preussischen Akademieder Advances in Theoretical Physics Wissenschaften Advances of Science Accademia delle Scienze, Medico e Naturali, AEG Mitteilungen Ferrara AEG Progress ACEC Journal AEG Zeitung ACEC Review AEI Engineering Acero y Energia AEI Engineering Review Acta Academiae Aboensis, Mathematical AEI Journal of Telecommunications Physics AEI Research Laboratory Reports Acta and Commentationes Universitatis Aerial Age Tartuensis (Dorpatensis) Aerial Age Weekly Acta Automatica Sinica Aeronautical Engineering Review Acta Bolyaiana Aeronautical Journal Acta Chemica Scandinavica Aeronautical Research Council Current Papers Acta Crystallographica Aeronautical Research Council Reports and Acta Electronica Memoranda Acta Electronica Sinica Aeronautics Acta Geophysica Sinica Aeroplane Acta Mathematica Aerospace Engineering Acta Mathematica Sinica Agricultural and Horticultural Engineering Acta Mechanica Abstracts Acta Medica -
Variable Star Classification and Light Curves Manual
Variable Star Classification and Light Curves An AAVSO course for the Carolyn Hurless Online Institute for Continuing Education in Astronomy (CHOICE) This is copyrighted material meant only for official enrollees in this online course. Do not share this document with others. Please do not quote from it without prior permission from the AAVSO. Table of Contents Course Description and Requirements for Completion Chapter One- 1. Introduction . What are variable stars? . The first known variable stars 2. Variable Star Names . Constellation names . Greek letters (Bayer letters) . GCVS naming scheme . Other naming conventions . Naming variable star types 3. The Main Types of variability Extrinsic . Eclipsing . Rotating . Microlensing Intrinsic . Pulsating . Eruptive . Cataclysmic . X-Ray 4. The Variability Tree Chapter Two- 1. Rotating Variables . The Sun . BY Dra stars . RS CVn stars . Rotating ellipsoidal variables 2. Eclipsing Variables . EA . EB . EW . EP . Roche Lobes 1 Chapter Three- 1. Pulsating Variables . Classical Cepheids . Type II Cepheids . RV Tau stars . Delta Sct stars . RR Lyr stars . Miras . Semi-regular stars 2. Eruptive Variables . Young Stellar Objects . T Tau stars . FUOrs . EXOrs . UXOrs . UV Cet stars . Gamma Cas stars . S Dor stars . R CrB stars Chapter Four- 1. Cataclysmic Variables . Dwarf Novae . Novae . Recurrent Novae . Magnetic CVs . Symbiotic Variables . Supernovae 2. Other Variables . Gamma-Ray Bursters . Active Galactic Nuclei 2 Course Description and Requirements for Completion This course is an overview of the types of variable stars most commonly observed by AAVSO observers. We discuss the physical processes behind what makes each type variable and how this is demonstrated in their light curves. Variable star names and nomenclature are placed in a historical context to aid in understanding today’s classification scheme. -
An Interpretation of Milne Cosmology
An Interpretation of Milne Cosmology Alasdair Macleod University of the Highlands and Islands Lews Castle College Stornoway Isle of Lewis HS2 0XR UK [email protected] Abstract The cosmological concordance model is consistent with all available observational data, including the apparent distance and redshift relationship for distant supernovae, but it is curious how the Milne cosmological model is able to make predictions that are similar to this preferred General Relativistic model. Milne’s cosmological model is based solely on Special Relativity and presumes a completely incompatible redshift mechanism; how then can the predictions be even remotely close to observational data? The puzzle is usually resolved by subsuming the Milne Cosmological model into General Relativistic cosmology as the special case of an empty Universe. This explanation may have to be reassessed with the finding that spacetime is approximately flat because of inflation, whereupon the projection of cosmological events onto the observer’s Minkowski spacetime must always be kinematically consistent with Special Relativity, although the specific dynamics of the underlying General Relativistic model can give rise to virtual forces in order to maintain consistency between the observation and model frames. I. INTRODUCTION argument is that a clear distinction must be made between models, which purport to explain structure and causes (the Edwin Hubble’s discovery in the 1920’s that light from extra- ‘Why?’), and observational frames which simply impart galactic nebulae is redshifted in linear proportion to apparent consistency and causality on observation (the ‘How?’). distance was quickly associated with General Relativity (GR), and explained by the model of a closed finite Universe curved However, it can also be argued this approach does not actually under its own gravity and expanding at a rate constrained by the explain the similarity in the predictive power of Milne enclosed mass. -
Resolving Hubble Tension with the Milne Model 3
Resolving Hubble tension with the Milne model* Ram Gopal Vishwakarma Unidad Acade´mica de Matema´ticas Universidad Auto´noma de Zacatecas, Zacatecas C. P. 98068, ZAC, Mexico [email protected] Abstract The recent measurements of the Hubble constant based on the standard ΛCDM cos- mology reveal an underlying disagreement between the early-Universe estimates and the late-time measurements. Moreover, as these measurements improve, the discrepancy not only persists but becomes even more significant and harder to ignore. The present situ- ation places the standard cosmology in jeopardy and provides a tantalizing hint that the problem results from some new physics beyond the ΛCDM model. It is shown that a non-conventional theory - the Milne model - which introduces a different evolution dynamics for the Universe, alleviates the Hubble tension significantly. Moreover, the model also averts some long-standing problems of the standard cosmology, for instance, the problems related with the cosmological constant, the horizon, the flat- ness, the Big Bang singularity, the age of the Universe and the non-conservation of energy. Keywords: Milne model; ΛCDM model; Hubble tension; SNe Ia observations; CMB observations. arXiv:2011.12146v1 [physics.gen-ph] 20 Nov 2020 1 Introduction The Hubble constant H0 is one of the most important parameters in cosmology which mea- sures the present rate of expansion of the Universe, and thereby estimates its size and age. This is done by assuming a cosmological model. However, the two values of H0 predicted by the standard ΛCDM model, one inferred from the measurements of the early Universe and the other from the late-time local measurements, seem to be in sever tension.