Portraits from Our Past
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Geoffrey Wilkinson
THE LONG SEARCH FOR STABLE TRANSITION METAL ALKYLS Nobel Lecture, December 11, 1973 by G EOFFREY W ILKINSON Imperial College of Science & Technology, London, England Chemical compounds in which there is a single bond between a saturated car- bon atom and a transition metal atom are of unusual importance. Quite aside from the significance and role in Nature of the cobalt to carbon bonds in the vitamin B 12 system and possible metal to carbon bonds in other biological systems, we need only consider that during the time taken to deliver this lec- ture, many thousands, if not tens of thousands of tons of chemical compounds are being transformed or synthesised industrially in processes which at some stage involve a transition metal to carbon bond. The nonchemist will pro- bably be most familiar with polyethylene or polypropylene in the form of do- mestic utensils, packaging materials, children’s toys and so on. These materials are made by Ziegler-Natta* or Philipps’ catalysis using titanium and chro- mium respectively. However, transition metal compounds are used as catalysts in the synthesis of synthetic rubbers and other polymers, and of a variety of simple compounds used as industrial solvents or intermediates. For example alcohols are made from olefins, carbon monoxide and hydrogen by use of cobalt or rhodium catalysts, acetic acid is made by carbonylation of methanol using rhodium catalysts and acrylonitrile is dimerised to adiponitrile (for nylon) by nickel catalysts. We should also not forget that the huge quantities of petroleum hydrocarbons processed by the oil and petrochemical industry are re-formed over platinum, platinum-rhenium or platinum-germanium sup- ported on alumina. -
James Chadwick: Ahead of His Time
July 15, 2020 James Chadwick: ahead of his time Gerhard Ecker University of Vienna, Faculty of Physics Boltzmanngasse 5, A-1090 Wien, Austria Abstract James Chadwick is known for his discovery of the neutron. Many of his earlier findings and ideas in the context of weak and strong nuclear forces are much less known. This biographical sketch attempts to highlight the achievements of a scientist who paved the way for contemporary subatomic physics. arXiv:2007.06926v1 [physics.hist-ph] 14 Jul 2020 1 Early years James Chadwick was born on Oct. 20, 1891 in Bollington, Cheshire in the northwest of England, as the eldest son of John Joseph Chadwick and his wife Anne Mary. His father was a cotton spinner while his mother worked as a domestic servant. In 1895 the parents left Bollington to seek a better life in Manchester. James was left behind in the care of his grandparents, a parallel with his famous predecessor Isaac Newton who also grew up with his grandmother. It might be an interesting topic for sociologists of science to find out whether there is a correlation between children educated by their grandmothers and future scientific geniuses. James attended Bollington Cross School. He was very attached to his grandmother, much less to his parents. Nevertheless, he joined his parents in Manchester around 1902 but found it difficult to adjust to the new environment. The family felt they could not afford to send James to Manchester Grammar School although he had been offered a scholarship. Instead, he attended the less prestigious Central Grammar School where the teaching was actually very good, as Chadwick later emphasised. -
Cathode Rays 89 Cathode Rays
Cathode Rays 89 Cathode Rays Theodore Arabatzis C The detection of cathode rays was a by-product of the investigation of the discharge of electricity through rarefied gases. The latter phenomenon had been studied since the early eighteenth century. By the middle of the nineteenth century it was known that the passage of electricity through a partly evacuated tube produced a glow in the gas, whose color depended on its chemical composition and its pressure. Below a certain pressure the glow assumed a stratified pattern of bright and dark bands. During the second half of the nineteenth century the discharge of electricity through gases became a topic of intense exploratory experimentation, primarily in Germany [21]. In 1855 the German instrument maker Heinrich Geißler (1815– 1879) manufactured improved vacuum tubes, which made possible the isolation and investigation of cathode rays [23]. In 1857 Geissler’s tubes were employed by Julius Pl¨ucker (1801–1868) to study the influence of a magnet on the electrical dis- charge. He observed various complex and striking phenomena associated with the discharge. Among those phenomena were a “light which appears about the negative electrode” and a fluorescence in the glass of the tube ([9], pp. 122, 130). The understanding of those phenomena was advanced by Pl¨ucker’s student and collaborator, Johann Wilhelm Hittorf (1824–1914), who observed that “if any ob- ject is interposed in the space filled with glow-light [emanating from the negative electrode], it throws a sharp shadow on the fluorescent side” ([5], p. 117). This effect implied that the “rays” emanating from the cathode followed a straight path. -
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. -
Gothic Beyond Architecture: Manchester’S Collegiate Church
Gothic beyond Architecture: Manchester’s Collegiate Church My previous posts for Visit Manchester have concentrated exclusively upon buildings. In the medieval period—the time when the Gothic style developed in buildings such as the basilica of Saint-Denis on the outskirts of Paris, Île-de-France (Figs 1–2), under the direction of Abbot Suger (1081–1151)—the style was known as either simply ‘new’, or opus francigenum (literally translates as ‘French work’). The style became known as Gothic in the sixteenth century because certain high-profile figures in the Italian Renaissance railed against the architecture and connected what they perceived to be its crude forms with the Goths that sacked Rome and ‘destroyed’ Classical architecture. During the nineteenth century, critics applied Gothic to more than architecture; they located all types of art under the Gothic label. This broad application of the term wasn’t especially helpful and it is no-longer used. Gothic design, nevertheless, was applied to more than architecture in the medieval period. Applied arts, such as furniture and metalwork, were influenced by, and followed and incorporated the decorative and ornament aspects of Gothic architecture. This post assesses the range of influences that Gothic had upon furniture, in particular by exploring Manchester Cathedral’s woodwork, some of which are the most important examples of surviving medieval woodwork in the North of England. Manchester Cathedral, formerly the Collegiate Church of the City (Fig.3), see here, was ascribed Cathedral status in 1847, and it is grade I listed (Historic England listing number 1218041, see here). It is medieval in foundation, with parts dating to between c.1422 and 1520, however it was restored and rebuilt numerous times in the nineteenth century, and it was notably hit by a shell during WWII; the shell failed to explode. -
Ernest Rutherford and the Accelerator: “A Million Volts in a Soapbox”
Ernest Rutherford and the Accelerator: “A Million Volts in a Soapbox” AAPT 2011 Winter Meeting Jacksonville, FL January 10, 2011 H. Frederick Dylla American Institute of Physics Steven T. Corneliussen Jefferson Lab Outline • Rutherford's call for inventing accelerators ("million volts in a soap box") • Newton, Franklin and Jefferson: Notable prefiguring of Rutherford's call • Rutherfords's discovery: The atomic nucleus and a new experimental method (scattering) • A century of particle accelerators AAPT Winter Meeting January 10, 2011 Rutherford’s call for inventing accelerators 1911 – Rutherford discovered the atom’s nucleus • Revolutionized study of the submicroscopic realm • Established method of making inferences from particle scattering 1927 – Anniversary Address of the President of the Royal Society • Expressed a long-standing “ambition to have available for study a copious supply of atoms and electrons which have an individual energy far transcending that of the alpha and beta particles” available from natural sources so as to “open up an extraordinarily interesting field of investigation.” AAPT Winter Meeting January 10, 2011 Rutherford’s wish: “A million volts in a soapbox” Spurred the invention of the particle accelerator, leading to: • Rich fundamental understanding of matter • Rich understanding of astrophysical phenomena • Extraordinary range of particle-accelerator technologies and applications AAPT Winter Meeting January 10, 2011 From Newton, Jefferson & Franklin to Rutherford’s call for inventing accelerators Isaac Newton, 1717, foreseeing something like quarks and the nuclear strong force: “There are agents in Nature able to make the particles of bodies stick together by very strong attractions. And it is the business of Experimental Philosophy to find them out. -
Front Matter (PDF)
PROCEEDINGS OF THE OYAL SOCIETY OF LONDON Series A CONTAINING PAPERS OF A MATHEMATICAL AND PHYSICAL CHARACTER. VOL. LXXXV. LONDON: P rinted for THE ROYAL SOCIETY and S old by HARRISON AND SONS, ST. MARTIN’S LANE, PRINTERS IN ORDINARY TO HIS MAJESTY. N ovember, 1911. LONDON: HARRISON AND SONS, PRINTERS IN ORDINARY TO HTS MAJESTY, ST. MARTIN’S LANE. CONTENTS --- 0 0 ^ 0 0 ----- SERIES A. VOL. LXXXV. No. A 575.—March 14, 1911. P AG-E The Chemical Physics involved in the Precipitation of Free Carbon from the Alloys of the Iron-Carbon System. By W. H. Hatfield, B. Met. (Sheffield University). Communicated by Prof. W. M. Hicks, F.R.S. (Plates 1—5) ................... .......... 1 On the Fourier Constants of a Function. By W. H. Young, Se.D., F.R.S................. 14 The Charges on Ions in Gases, and some Effects that Influence the Motion of Negative Ions. By Prof. John S. Townsend, F.R.S............................................... 25 On the Energy and Distribution of Scattered Rontgen Radiation. By J. A. Crowtlier, M.A., Fellow of St. John's College, Cambridge. Com municated by Prof. Sir J. J. Thomson, F.R.S...........................*.............................. 29 The Origin of Magnetic Storms. By Arthur Schuster, F.R.S...................................... 44 On the Periodicity of Sun-spots. By Arthur Schuster, F.R.S..................................... 50 The Absorption Spectx*a of Lithium and Caesium. By Prof. P. V. Bevan, M.A., Royal Holloway College. Communicated by Sir J. J. Thomson, F.R.S.............. 54 Dispersion in Vapours of the Alkali Metals. By Prof. P. V. Bevan, M.A., Royal Holloway College. -
Introduction the Whitworth Has Been Making Art Useful Since 1889
Introduction The Whitworth has been making art useful since 1889. The gallery was originally founded with the wealth of Stockport-born engineer Sir Joseph Whitworth (1803-87). He transformed engineering through the introduction of a standardised system of measurement for machine parts. Whitworth left no formal instructions about how the bulk of his fortune (equivalent to more than £130 million today) should be used after his death. This decision was left to his widow Lady Mary Louisa and his good friends and fellow philanthropists Robert Darbishire and Richard Copley Christie. For the very first time examples of Joseph Whitworth’s world-changing mechanical innovations are on display amongst highlights from the gallery’s diverse collections of textiles, fine art and wallpaper. Whitworth’s commitment to standardisation is used throughout the exhibition as a counterpoint to significant moments of deviation within the gallery’s collection and history. This exhibition explores the establishment of the Whitworth. The founding intention to create a forward-thinking art and design collection is interrogated and its difficult histories exposed. Gender, labour, race and class inequalities are just some of the issues being confronted. This has informed our conversations about the history of the gallery and its collections and we continue to actively engage in this work. Art and Industry William Morris described the exhibits inside the Great Exhibition of 1851 as ‘wonderfully ugly’. For Morris and the art critic John Ruskin, this celebration of global arts highlighted how mass production had led to a separation between English workers and making. Both men were prominent in the Arts and Crafts movement, which aimed to promote hand-making over mass production and advocate the decorative arts. -
Streamlining Alloy Design and Thermo-Mechanical Processing Parameters for High Strength Line Pipe Steels and Hot Rolled Microall
University of Texas at El Paso DigitalCommons@UTEP Open Access Theses & Dissertations 2018-01-01 Streamlining Alloy Design And Thermo- Mechanical Processing Parameters For High Strength Line Pipe Steels And Hot Rolled Microalloyed Steels: Process - Structure - Property Paradigm Venkata Vignesh Natarajan University of Texas at El Paso, [email protected] Follow this and additional works at: https://digitalcommons.utep.edu/open_etd Part of the Materials Science and Engineering Commons, and the Mechanics of Materials Commons Recommended Citation Natarajan, Venkata Vignesh, "Streamlining Alloy Design And Thermo-Mechanical Processing Parameters For High Strength Line Pipe Steels And Hot Rolled Microalloyed Steels: Process - Structure - Property Paradigm" (2018). Open Access Theses & Dissertations. 129. https://digitalcommons.utep.edu/open_etd/129 This is brought to you for free and open access by DigitalCommons@UTEP. It has been accepted for inclusion in Open Access Theses & Dissertations by an authorized administrator of DigitalCommons@UTEP. For more information, please contact [email protected]. STREAMLINING ALLOY DESIGN AND THERMO-MECHANICAL PROCESSING PARAMETERS FOR HIGH STRENGTH LINE PIPE STEELS AND HOT ROLLED MICROALLOYED STEELS: PROCESS – STRUCTURE – PROPERTY PARADIGM VENKATA VIGNESH NATARAJAN Doctoral Program in Materials Science and Engineering APPROVED: Devesh Misra, Ph.D., Chair Srinivasa Rao Singamaneni, Ph.D. Guikuan Yue, Ph.D. Charles Ambler, Ph.D. Dean of the Graduate School Copyright © by Venkata Vignesh Natarajan 2018 DEDICATION -
Building Key Key P
T S BAR ING S D TREET N L EE E R I G F K R IC I D W 35 Cordingley Lecture Theatre A RD A F 147 Building key A Key 86 Core Technology Facility Manchester Piccadilly Bus 78 Academy Station stop B 42 Cosmo Rodewald ERRY S cluster 63 Alan Gilbert 47 Coupland Building 3 83 Grove House 16 Manchester 53 Roscoe Building 81 The Manchester 32 Access Summit Concert Hall T Campus buildings Learning Commons 31 Crawford House 29 Harold Hankins Building Interdisciplinary Biocentre 45 Rutherford Building Incubator Building Disability Resource 01 Council Chamber cluster 46 Alan Turing Building 33 Crawford House Lecture 74 Holy Name Church 44 Manchester Museum cluster 14 The Mill Centre (Sackville Street) 01 Sackville Street Building University residences Theatres 76 AQA 80 Horniman House cluster 65 Mansfield Cooper Building 67 Samuel Alexander Building 37 University Place 37 Accommodation Office 51 Council Chamber cluster (Whitworth Building) 3 10 36 Arthur Lewis Building 867 Denmark Building 35 Humanities Bridgeford 42 Martin Harris Centre for 56 Schunck Building 38 Waterloo Place 31 Accounting and Finance A cluster cluster Principal car parks 6 15 P 68 Council Chamber 75 AV Hill Building T 41 Dental School and Hospital Street Music and Drama 11 Weston Hall 01 Aerospace Research E 54 Schuster Building (Students’ Union) E 30 Devonshire House AD 40 Information Technology 25 Materials Science Centre Centre (UMARI) 73 Avila House RC ChaplaTinRcy RO 59 Simon Building 84 Whitworth Art PC clusters S SON cluster 31 Counselling Service 2 G 70 Dover Street BuildWinAg -
Facts and Figures 2013
Facts and Figures 201 3 Contents The University 2 World ranking 4 Academic pedigree 6 Areas of impact 8 Research power 10 Spin-outs 12 Income 14 Students 16 Graduate careers 18 Alumni 20 Faculties and Schools 22 Staff 24 Estates investment 26 Visitor attractions 28 Widening participation 30 At a glance 32 1 The University of Manchester Our Strategic Vision 2020 states our mission: “By 2020, The University of Manchester will be one of the top 25 research universities in the world, where all students enjoy a rewarding educational and wider experience; known worldwide as a place where the highest academic values and educational innovation are cherished; where research prospers and makes a real difference; and where the fruits of scholarship resonate throughout society.” Our core goals 1 World-class research 2 Outstanding learning and student experience 3 Social responsibility 2 3 World ranking The quality of our teaching and the impact of our research are the cornerstones of our success. 5 The Shanghai Jiao Tong University UK Academic Ranking of World ranking Universities assesses the best teaching and research universities, and in 2012 we were ranked 40th in the world. 7 World European UK European Year Ranking Ranking Ranking ranking 2012 40 7 5 2010 44 9 5 2005 53 12 6 2004* 78* 24* 9* 40 Source: 2012 Shanghai Jiao Tong University World Academic Ranking of World Universities ranking *2004 ranking refers to the Victoria University of Manchester prior to the merger with UMIST. 4 5 Academic pedigree Nobel laureates 1900 JJ Thomson , Physics (1906) We attract the highest calibre researchers and Ernest Rutherford , Chemistry (1908) teachers, boasting 25 Nobel Prize winners among 1910 William Lawrence Bragg , Physics (1915) current and former staff and students. -
CV Sir Arthur Harden
Curriculum Vitae Prof. Dr. Arthur Harden Name: Sir Arthur Harden Lebensdaten: 12. Oktober 1865 ‐ 17. Juni 1940 Arthur Harden war ein britischer Chemiker. Nach ihm sind die Harden‐Young‐Ester (Zuckerphospha‐ te) benannt. Für seine Forschungen über die Gärung von Zucker und dessen Gärungsenzyme wurde er im Jahr 1929 gemeinsam mit dem deutsch‐schwedischen Chemiker Hans von Euler‐Chelpin mit dem Nobelpreis für Chemie ausgezeichnet. Werdegang Arthur Harden studierte von 1882 bis 1885 Chemie am Owens College der University of Manchester. 1868 ging er mit einem Dalton Scholarship an die Universität Erlangen, um beim Chemiker Otto Fi‐ scher, einem Vetter von Emil Fischer (Nobelpreis für Chemie 1902), zu arbeiten. Dort wurde er 1888 promoviert. Im Anschluss arbeitete er als Dozent am Owens College. Ab 1897 war er am neu gegrün‐ deten British Jenner Institute of Preventive Medicine tätig. 1907 wurde er dort Leiter der Abteilung Biochemie. Außerdem erhielt er 1912 eine Professur für Biochemie an der University of London. Auch nach seiner Emeritierung im Jahr 1930 blieb Harden wissenschaftlich aktiv. So befasste er sich unter anderem mit dem Stoffwechsel von E.coli‐Bakterien sowie mit der Gärung. Gemeinsam mit dem deutsch‐schwedischen Wissenschaftler Hans von Euler‐Chelpin gelang es ihm, diesen Vorgang vollständig aufzuklären. Nobelpreis für Chemie 1929 Die Aufklärung der Gärung als eine der ältesten biologischen Technologien der Menschheit hatte bereits zuvor viele Wissenschaftler zu Forschungsarbeiten angeregt, unter ihnen Louis Pasteur und Justus Freiherr von Liebig. Arthur Harden wurde für seine Forschungen über die Gärung von Zucker und die daran beteiligten Gärungsenzyme im Jahr 1929 gemeinsam mit Hans von Euler‐Chelpin mit dem Nobelpreis für Chemie ausgezeichnet.