''The Golden Age of Theoretical Physics”: P.A.M. Dirac's Scientific
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To What Extent Did British Advancements in Cryptanalysis During World War II Influence the Development of Computer Technology?
Portland State University PDXScholar Young Historians Conference Young Historians Conference 2016 Apr 28th, 9:00 AM - 10:15 AM To What Extent Did British Advancements in Cryptanalysis During World War II Influence the Development of Computer Technology? Hayley A. LeBlanc Sunset High School Follow this and additional works at: https://pdxscholar.library.pdx.edu/younghistorians Part of the European History Commons, and the History of Science, Technology, and Medicine Commons Let us know how access to this document benefits ou.y LeBlanc, Hayley A., "To What Extent Did British Advancements in Cryptanalysis During World War II Influence the Development of Computer Technology?" (2016). Young Historians Conference. 1. https://pdxscholar.library.pdx.edu/younghistorians/2016/oralpres/1 This Event is brought to you for free and open access. It has been accepted for inclusion in Young Historians Conference by an authorized administrator of PDXScholar. Please contact us if we can make this document more accessible: [email protected]. To what extent did British advancements in cryptanalysis during World War 2 influence the development of computer technology? Hayley LeBlanc 1936 words 1 Table of Contents Section A: Plan of Investigation…………………………………………………………………..3 Section B: Summary of Evidence………………………………………………………………....4 Section C: Evaluation of Sources…………………………………………………………………6 Section D: Analysis………………………………………………………………………………..7 Section E: Conclusion……………………………………………………………………………10 Section F: List of Sources………………………………………………………………………..11 Appendix A: Explanation of the Enigma Machine……………………………………….……...13 Appendix B: Glossary of Cryptology Terms.…………………………………………………....16 2 Section A: Plan of Investigation This investigation will focus on the advancements made in the field of computing by British codebreakers working on German ciphers during World War 2 (19391945). -
2019 in the Academic Ranking of World Universities (ARWU)
THE UNIVERSITY OF MANCHESTER FACTS AND FIGURES 2020 2 The University 4 World ranking 6 Academic pedigree 8 World-class research CONTENTS 10 Students 12 Making a difference 14 Global challenges, Manchester solutions 16 Stellify 18 Graduate careers 20 Staff 22 Faculties and Schools 24 Alumni 26 Innovation 28 Widening participation UNIVERSITY OF MANCHESTER 30 Cultural institutions UNIVERSITY OF MANCHESTER 32 Income 34 Campus investment 36 At a glance 1 THE UNIVERSITY OF MANCHESTER Our vision is to be recognised globally for the excellence of our people, research, learning and innovation, and for the benefits we bring to society and the environment. Our core goals and strategic themes Research and discovery Teaching and learning Social responsibility Our people, our values Innovation Civic engagement Global influence 2 3 WORLD RANKING The quality of our teaching and the impact of our research are the cornerstones of our success. We have risen from 78th in 2004* to 33rd – our highest ever place – in 2019 in the Academic Ranking of World Universities (ARWU). League table World ranking European ranking UK ranking 33 8 6 ARWU 33 8 6 WORLD EUROPE UK QS 27 8 6 Times Higher Education 55 16 8 *2004 ranking refers to the Victoria University of Manchester prior to the merger with UMIST. 4 5 ACADEMIC PEDIGREE 1906 1908 1915 1922 1922 We attract the highest-calibre researchers and teachers, with 25 Nobel Prize winners among J Thomson Ernest Rutherford William Archibald V Hill Niels Bohr Physics Chemistry Larence Bragg Physiology or Medicine Physics our current and former staff and students. -
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. -
Wave Nature of Matter: Made Easy (Lesson 3) Matter Behaving As a Wave? Ridiculous!
Wave Nature of Matter: Made Easy (Lesson 3) Matter behaving as a wave? Ridiculous! Compiled by Dr. SuchandraChatterjee Associate Professor Department of Chemistry Surendranath College Remember? I showed you earlier how Einstein (in 1905) showed that the photoelectric effect could be understood if light were thought of as a stream of particles (photons) with energy equal to hν. I got my Nobel prize for that. Louis de Broglie (in 1923) If light can behave both as a wave and a particle, I wonder if a particle can also behave as a wave? Louis de Broglie I’ll try messing around with some of Einstein’s formulae and see what I can come up with. I can imagine a photon of light. If it had a “mass” of mp, then its momentum would be given by p = mpc where c is the speed of light. Now Einstein has a lovely formula that he discovered linking mass with energy (E = mc2) and he also used Planck’s formula E = hf. What if I put them equal to each other? mc2 = hf mc2 = hf So for my photon 2 mp = hfhf/c/c So if p = mpc = hfhf/c/c p = mpc = hf/chf/c Now using the wave equation, c = fλ (f = c/λ) So mpc = hc /λc /λc= h/λ λ = hp So you’re saying that a particle of momentum p has a wavelength equal to Planck’s constant divided by p?! Yes! λ = h/p It will be known as the de Broglie wavelength of the particle Confirmation of de Broglie’s ideas De Broglie didn’t have to wait long for his idea to be shown to be correct. -
Arthur S. Eddington the Nature of the Physical World
Arthur S. Eddington The Nature of the Physical World Arthur S. Eddington The Nature of the Physical World Gifford Lectures of 1927: An Annotated Edition Annotated and Introduced By H. G. Callaway Arthur S. Eddington, The Nature of the Physical World: Gifford Lectures of 1927: An Annotated Edition, by H. G. Callaway This book first published 2014 Cambridge Scholars Publishing 12 Back Chapman Street, Newcastle upon Tyne, NE6 2XX, UK British Library Cataloguing in Publication Data A catalogue record for this book is available from the British Library Copyright © 2014 by H. G. Callaway All rights for this book reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the copyright owner. ISBN (10): 1-4438-6386-6, ISBN (13): 978-1-4438-6386-5 CONTENTS Note to the Text ............................................................................... vii Eddington’s Preface ......................................................................... ix A. S. Eddington, Physics and Philosophy .......................................xiii Eddington’s Introduction ................................................................... 1 Chapter I .......................................................................................... 11 The Downfall of Classical Physics Chapter II ......................................................................................... 31 Relativity Chapter III -
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. -
Richard Phillips Feynman Physicist and Teacher Extraordinary
ARTICLE-IN-A-BOX Richard Phillips Feynman Physicist and Teacher Extraordinary The first three decades of the twentieth century have been among the most momentous in the history of physics. The first saw the appearance of special relativity and the birth of quantum theory; the second the creation of general relativity. And in the third, quantum mechanics proper was discovered. These developments shaped the progress of fundamental physics for the rest of the century and beyond. While the two relativity theories were largely the creation of Albert Einstein, the quantum revolution took much more time and involved about a dozen of the most creative minds of a couple of generations. Of all those who contributed to the consolidation and extension of the quantum ideas in later decades – now from the USA as much as from Europe and elsewhere – it is generally agreed that Richard Phillips Feynman was the most gifted, brilliant and intuitive genius out of many extremely gifted physicists. Here are descriptions of him by leading physicists of his own, and older as well as younger generations: “He is a second Dirac, only this time more human.” – Eugene Wigner …Feynman was not an ordinary genius but a magician, that is one “who does things that nobody else could ever do and that seem completely unexpected.” – Hans Bethe “… an honest man, the outstanding intuitionist of our age and a prime example of what may lie in store for anyone who dares to follow the beat of a different drum..” – Julian Schwinger “… the most original mind of his generation.” – Freeman Dyson Richard Feynman was born on 11 May 1918 in Far Rockaway near New York to Jewish parents Lucille Phillips and Melville Feynman. -
Bringing out the Dead Alison Abbott Reviews the Story of How a DNA Forensics Team Cracked a Grisly Puzzle
BOOKS & ARTS COMMENT DADO RUVIC/REUTERS/CORBIS DADO A forensics specialist from the International Commission on Missing Persons examines human remains from a mass grave in Tomašica, Bosnia and Herzegovina. FORENSIC SCIENCE Bringing out the dead Alison Abbott reviews the story of how a DNA forensics team cracked a grisly puzzle. uring nine sweltering days in July Bosnia’s Million Bones tells the story of how locating, storing, pre- 1995, Bosnian Serb soldiers slaugh- innovative DNA forensic science solved the paring and analysing tered about 7,000 Muslim men and grisly conundrum of identifying each bone the million or more Dboys from Srebrenica in Bosnia. They took so that grieving families might find some bones. It was in large them to several different locations and shot closure. part possible because them, or blew them up with hand grenades. This is an important book: it illustrates the during those fate- They then scooped up the bodies with bull- unspeakable horrors of a complex war whose ful days in July 1995, dozers and heavy earth-moving equipment, causes have always been hard for outsiders to aerial reconnais- and dumped them into mass graves. comprehend. The author, a British journalist, sance missions by the Bosnia’s Million It was the single most inhuman massacre has the advantage of on-the-ground knowl- Bones: Solving the United States and the of the Bosnian war, which erupted after the edge of the war and of the International World’s Greatest North Atlantic Treaty break-up of Yugoslavia and lasted from 1992 Commission on Missing Persons (ICMP), an Forensic Puzzle Organization had to 1995, leaving some 100,000 dead. -
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 . -
Twenty Five Hundred Years of Small Science What’S Next?
Twenty Five Hundred Years of Small Science What’s Next? Lloyd Whitman Assistant Director for Nanotechnology White House Office of Science and Technology Policy Workshop on Integrated Nanosystems for Atomically Precise Manufacturing Berkeley, CA, August 5, 2015 Democritus (ca. 460 – 370 BC) Everything is composed of “atoms” Atomos (ἄτομος): that which can not be cut www.phil-fak.uni- duesseldorf.de/philo/galerie/antike/ demokrit.html Quantum Mechanics (1920s) Max Planck 1918* Albert Einstein 1921 Niels Bohr 1922 Louis de Broglie 1929 Max Born 1954 Paul Dirac 1933 On the Theory of Quanta Louis-Victor de Broglie Werner Heisenberg 1932 Wolfgang Pauli 1945 Erwin Schrödinger 1933 *Nobel Prizes in Physics https://tel.archives-ouvertes.fr/tel- 00006807 Ernst Ruska (1906 – 1988) Electron Microscopy Magnifying higher than the light microscope - 1933 Nobel Prize in Physics 1986 www.nobelprize.org/nobel_prizes/physics/laureates /1986/ruska-lecture.pdf Richard Feynman (1918-1988) There's Plenty of Room at the Bottom, An Invitation to Enter a New Field of Physics What would happen if we could arrange the atoms one by one the way we want them…? December 29, 1959 richard-feynman.net Heinrich Rohrer (1933 – 2013) Gerd Binnig Atomic resolution Scanning Tunneling Microscopy - 1981 1983 I could not stop looking at the images. It was like entering a new world. Gerd Binnig, Nobel lecture Binnig, et al., PRL 50, 120 (1983) Nobel Prize in Physics 1986 C60: Buckminsterfullerene Kroto, Heath, O‘Brien, Curl and September 1985 Smalley - 1985 …a remarkably stable cluster consisting of 60 carbon atoms…a truncated icosahedron. Nature 318, 162 (1985) http://www.acs.org/content/acs/en/education/whatis chemistry/landmarks/fullerenes.html Nobel Prize in Chemistry 1996 Curl, Kroto, and Smalley Positioning Single Atoms with a Scanning Tunnelling Microscope Eigler and Schweizer - 1990 …fabricate rudimentary structures of our own design, atom by atom. -
Einstein and Hilbert: the Creation of General Relativity
EINSTEIN AND HILBERT: THE CREATION OF GENERAL RELATIVITY ∗ Ivan T. Todorov Institut f¨ur Theoretische Physik, Universit¨at G¨ottingen, Friedrich-Hund-Platz 1 D-37077 G¨ottingen, Germany; e-mail: [email protected] and Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences Tsarigradsko Chaussee 72, BG-1784 Sofia, Bulgaria;∗∗e-mail: [email protected] ABSTRACT It took eight years after Einstein announced the basic physical ideas behind the relativistic gravity theory before the proper mathematical formulation of general relativity was mastered. The efforts of the greatest physicist and of the greatest mathematician of the time were involved and reached a breathtaking concentration during the last month of the work. Recent controversy, raised by a much publicized 1997 reading of Hilbert’s proof- sheets of his article of November 1915, is also discussed. arXiv:physics/0504179v1 [physics.hist-ph] 25 Apr 2005 ∗ Expanded version of a Colloquium lecture held at the International Centre for Theoretical Physics, Trieste, 9 December 1992 and (updated) at the International University Bremen, 15 March 2005. ∗∗ Permanent address. Introduction Since the supergravity fashion and especially since the birth of superstrings a new science emerged which may be called “high energy mathematical physics”. One fad changes the other each going further away from accessible experiments and into mathe- matical models, ending up, at best, with the solution of an interesting problem in pure mathematics. The realization of the grand original design seems to be, decades later, nowhere in sight. For quite some time, though, the temptation for mathematical physi- cists (including leading mathematicians) was hard to resist. -
Richard P. Feynman Author
Title: The Making of a Genius: Richard P. Feynman Author: Christian Forstner Ernst-Haeckel-Haus Friedrich-Schiller-Universität Jena Berggasse 7 D-07743 Jena Germany Fax: +49 3641 949 502 Email: [email protected] Abstract: In 1965 the Nobel Foundation honored Sin-Itiro Tomonaga, Julian Schwinger, and Richard Feynman for their fundamental work in quantum electrodynamics and the consequences for the physics of elementary particles. In contrast to both of his colleagues only Richard Feynman appeared as a genius before the public. In his autobiographies he managed to connect his behavior, which contradicted several social and scientific norms, with the American myth of the “practical man”. This connection led to the image of a common American with extraordinary scientific abilities and contributed extensively to enhance the image of Feynman as genius in the public opinion. Is this image resulting from Feynman’s autobiographies in accordance with historical facts? This question is the starting point for a deeper historical analysis that tries to put Feynman and his actions back into historical context. The image of a “genius” appears then as a construct resulting from the public reception of brilliant scientific research. Introduction Richard Feynman is “half genius and half buffoon”, his colleague Freeman Dyson wrote in a letter to his parents in 1947 shortly after having met Feynman for the first time.1 It was precisely this combination of outstanding scientist of great talent and seeming clown that was conducive to allowing Feynman to appear as a genius amongst the American public. Between Feynman’s image as a genius, which was created significantly through the representation of Feynman in his autobiographical writings, and the historical perspective on his earlier career as a young aspiring physicist, a discrepancy exists that has not been observed in prior biographical literature.