Core Text List
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Assaj V2 N4 1930-Jan
ijtlJt Journal {If tl]t J\.strauamital ~ add!,! af ~ autb J\.frita. Vol. II. JANUARY, 1930. No.4. Astronomical Society of South Africa~ "' AT HOME" TO VISITING ASTRONOMERS OF THE BRITISH ASSOCIATION. July 26, 1929, will long be remembered in the annals of the Astronomical Society of South Africa, for on the evening of that day it was "At Home" at the Oddfellows' Hall, Plein Street, Cape Town, to the visiting astronomers who were attending the meetings of the British Association. The chair was taken by Mr. A. W. Long, President of the Society, who, in opening the proceedings, said: This gathering of the Astronomical Society of South Africa has been arranged to enable the members to greet the distinguished astronomers and other eminent scien tists interested in astronomy who are visiting South Africa in connection with the meetings of the British Association. We have with us to-night Sir Frank Dyson, the Astronomer Royal; Professor Eddington, Director of the Cambridge University Observatory; Professor Fowl~r, Yarrow Research Professor of the Royal Society; Pro fessor Chapman, of the Imperial College of Science; Professor De Sitter, Director of the Leiden Observatory; Dr. Guthnick, Director of the Berlin-Babelsberg Obser vatory; Dr. K110x-Shaw, Director of the Radcliffe Observatory; Mr. Greaves, of the Greenwich Observa tory; Mr. Wrigley, of the Edinburgh Observatory; Dr. Aston, of Cambridge, and I am pleased to say that at a later stage Lord Rayleigh will also be here. In the name of the Society I extend to these gentlemen a very hearty welcome. We have been familiar with them for a very long time by name, and through their scientific attainments; now we are delighted to have the honour of meeting them in person. -
50 Years of the Lovell Telescope Transcript
50 years of the Lovell telescope Transcript Date: Wednesday, 5 December 2007 - 12:00AM 50 YEARS OF THE LOVELL TELESCOPE Professor Ian Morison The Early days at Jodrell Bank In late 1945 Dr Bernard Lovell (as he then was) returned to Manchester University after working on the development of radar during the war years. His aim was to continue his researches into cosmic rays - highly energetic particles that enter the Earth's atmosphere from outer space. He had the idea that sporadic echoes sometimes received by military radars might be the result of cosmic rays entering the atmosphere and thus radar observations might provide a new way to continue his researches. Radar observations were not practical in the centre of Manchester so he took his ex-army radar system out to the University's Botanical Grounds at Jodrell Bank, some 20 miles to the south. By the middle of December 1945, the system was operating and his team was soon able to prove that the echoes were coming not from cosmic rays but from ionized meteor trails left behind when small particles, released from comets, are burnt up in the upper atmosphere of the Earth. Radar Antenna in the Botany Grounds. The Jodrell Bank Experimental Station. The observations continued and, to house the expanding staff and equipment, the Jodrell Bank Experimental Station was built in the field next to the Botanic Grounds. Lovell realised that a much more sensitive radio telescope would be required to detect cosmic rays and so, in 1947, the researchers built a large parabolic reflector, 66-m across, pointing upwards to observe the sky passing overhead. -
Former Fellows Biographical Index Part
Former Fellows of The Royal Society of Edinburgh 1783 – 2002 Biographical Index Part Two ISBN 0 902198 84 X Published July 2006 © The Royal Society of Edinburgh 22-26 George Street, Edinburgh, EH2 2PQ BIOGRAPHICAL INDEX OF FORMER FELLOWS OF THE ROYAL SOCIETY OF EDINBURGH 1783 – 2002 PART II K-Z C D Waterston and A Macmillan Shearer This is a print-out of the biographical index of over 4000 former Fellows of the Royal Society of Edinburgh as held on the Society’s computer system in October 2005. It lists former Fellows from the foundation of the Society in 1783 to October 2002. Most are deceased Fellows up to and including the list given in the RSE Directory 2003 (Session 2002-3) but some former Fellows who left the Society by resignation or were removed from the roll are still living. HISTORY OF THE PROJECT Information on the Fellowship has been kept by the Society in many ways – unpublished sources include Council and Committee Minutes, Card Indices, and correspondence; published sources such as Transactions, Proceedings, Year Books, Billets, Candidates Lists, etc. All have been examined by the compilers, who have found the Minutes, particularly Committee Minutes, to be of variable quality, and it is to be regretted that the Society’s holdings of published billets and candidates lists are incomplete. The late Professor Neil Campbell prepared from these sources a loose-leaf list of some 1500 Ordinary Fellows elected during the Society’s first hundred years. He listed name and forenames, title where applicable and national honours, profession or discipline, position held, some information on membership of the other societies, dates of birth, election to the Society and death or resignation from the Society and reference to a printed biography. -
The Worshipful Company of Clockmakers Past Masters Since 1631
The Worshipful Company of Clockmakers Past Masters since 1631 1631 David Ramsey (named in the Charter) 1700 Charles Gretton 1800 Matthew Dutton 1632 David Ramsey (sworn 22nd October) 1701 William Speakman 1801 William Plumley 1633 David Ramsey, represented by his Deputy, Henry Archer 1702 Joseph Windmills 1802 Edward Gibson 1634 Sampson Shelton 1703 Thomas Tompion 1803 Timothy Chisman 1635 John Willow 1704 Robert Webster 1804 William Pearce 1636 Elias Allen 1705 Benjamin Graves 1805 William Robins 1638 John Smith 1706 John Finch 1806 Francis S Perigal Jnr 1639 Sampson Shelton 1707 John Pepys 1807 Samuel Taylor 1640 John Charleton 1708 Daniel Quare 1808 Thomas Dolley 1641 John Harris 1709 George Etherington 1809 William Robson 1642 Richard Masterson 1710 Thomas Taylor 1810 Paul Philip Barraud 1643 John Harris 1711 Thomas Gibbs 1811 Paul Philip Barraud 1644 John Harris 1712 John Shaw 1812 Harry Potter (died) 1645 Edward East 1713 Sir George Mettins (Lord Mayor 1724–1725) 1813 Isaac Rogers 1646 Simon Hackett 1714 John Barrow 1814 William Robins 1647 Simon Hackett 1715 Thomas Feilder 1815 John Thwaites 1648 Robert Grinkin 1716 William Jaques 1816 William Robson 1649 Robert Grinkin 1717 Nathaniel Chamberlain 1817 John Roger Arnold 1650 Simon Bartram 1718 Thomas Windmills 1818 William Robson 1651 Simon Bartram 1719 Edward Crouch 1819 John Thwaites 1652 Edward East 1720 James Markwick 1820 John Thwaites 1653 John Nicasius 1721 Martin Jackson 1821 Benjamin Lewis Vulliamy 1654 Robert Grinkin 1722 George Graham 1822 John Jackson Jnr 1655 John Nicasius -
Jod Bank 1.Indd 56 23/10/2019 08:11 Feature
Feature Radio Eye on the Sky (Part I) Dr Bruce Taylor HB9ANY Dr Bruce Taylor HB9ANY relates how chance, [email protected] skill, tenacity and the enthusiasm of a botanist n July 7th 2019 Jodrell Bank radio amateur created a technical masterpiece. Observatory, the home of what is surely the most iconic radio antenna in the world, was de- Oclared a World Heritage Site in the same cultural category as the Great Wall of China and the Pyramid Fields from Giza to Dahshur. It was recognised by UNESCO as “a masterpiece of human creative genius” because of its scientifi c achievements in advancing our understanding of the uni- verse. But as the champagne fl owed in cel- ebration of this magnifi cent accolade, few remembered that 62 years earlier its found- er, Bernard Lovell, endured immense per- sonal hardship and narrowly escaped incar- ceration during the technical, Political and fi nancial drama surrounding its creation. In 1939, 25 year-old Lovell was one of many talented university teachers and re- searchers who abandoned their Peaceful studies to join the war effort. They teamed uP with hundreds of radio amateurs and professional electronics experts who con- tributed their technical skills to the defence of the United Kingdom. Lovell was just about to set out from Manchester for the Pyrenees, in a small van loaded with equip- 1 ment for cosmic ray research, when he re- ceived a call to rePort to the Chain Home at which available thermionic valves could (CH) laboratories at Bawdsey Manor on generate signifi cant power was about the east coast of England. -
Download This Article (Pdf)
244 Trimble, JAAVSO Volume 43, 2015 As International as They Would Let Us Be Virginia Trimble Department of Physics and Astronomy, University of California, Irvine, CA 92697-4575; [email protected] Received July 15, 2015; accepted August 28, 2015 Abstract Astronomy has always crossed borders, continents, and oceans. AAVSO itself has roughly half its membership residing outside the USA. In this excessively long paper, I look briefly at ancient and medieval beginnings and more extensively at the 18th and 19th centuries, plunge into the tragedies associated with World War I, and then try to say something relatively cheerful about subsequent events. Most of the people mentioned here you will have heard of before (Eratosthenes, Copernicus, Kepler, Olbers, Lockyer, Eddington…), others, just as important, perhaps not (von Zach, Gould, Argelander, Freundlich…). Division into heroes and villains is neither necessary nor possible, though some of the stories are tragic. In the end, all one can really say about astronomers’ efforts to keep open channels of communication that others wanted to choke off is, “the best we can do is the best we can do.” 1. Introduction astronomy (though some of the practitioners were actually Christian and Jewish) coincided with the largest extents of Astronomy has always been among the most international of regions governed by caliphates and other Moslem empire-like sciences. Some of the reasons are obvious. You cannot observe structures. In addition, Arabic astronomy also drew on earlier the whole sky continuously from any one place. Attempts to Greek, Persian, and Indian writings. measure geocentric parallax and to observe solar eclipses have In contrast, the Europe of the 16th century, across which required going to the ends (or anyhow the middles) of the earth. -
One of the Most Celebrated Physics Experiments of the 20Th Cent
Not Only Because of Theory: Dyson, Eddington and the Competing Myths of the 1919 Eclipse Expedition Introduction One of the most celebrated physics experiments of the 20th century, a century of many great breakthroughs in physics, took place on May 29th, 1919 in two remote equatorial locations. One was the town of Sobral in northern Brazil, the other the island of Principe off the west coast of Africa. The experiment in question concerned the problem of whether light rays are deflected by gravitational forces, and took the form of astrometric observations of the positions of stars near the Sun during a total solar eclipse. The expedition to observe the eclipse proved to be one of those infrequent, but recurring, moments when astronomical observations have overthrown the foundations of physics. In this case it helped replace Newton’s Law of Gravity with Einstein’s theory of General Relativity as the generally accepted fundamental theory of gravity. It also became, almost immediately, one of those uncommon occasions when a scientific endeavor captures and holds the attention of the public throughout the world. In recent decades, however, questions have been raised about possible bias and poor judgment in the analysis of the data taken on that famous day. It has been alleged that the best known astronomer involved in the expedition, Arthur Stanley Eddington, was so sure beforehand that the results would vindicate Einstein’s theory that, for unjustifiable reasons, he threw out some of the data which did not agree with his preconceptions. This story, that there was something scientifically fishy about one of the most famous examples of an experimentum crucis in the history of science, has now become well known, both amongst scientists and laypeople interested in science. -
November 2019
A selection of some recent arrivals November 2019 Rare and important books & manuscripts in science and medicine, by Christian Westergaard. Flæsketorvet 68 – 1711 København V – Denmark Cell: (+45)27628014 www.sophiararebooks.com AMPÈRE, André-Marie. THE FOUNDATION OF ELECTRO- DYNAMICS, INSCRIBED BY AMPÈRE AMPÈRE, Andre-Marie. Mémoires sur l’action mutuelle de deux courans électri- ques, sur celle qui existe entre un courant électrique et un aimant ou le globe terres- tre, et celle de deux aimans l’un sur l’autre. [Paris: Feugeray, 1821]. $22,500 8vo (219 x 133mm), pp. [3], 4-112 with five folding engraved plates (a few faint scattered spots). Original pink wrappers, uncut (lacking backstrip, one cord partly broken with a few leaves just holding, slightly darkened, chip to corner of upper cov- er); modern cloth box. An untouched copy in its original state. First edition, probable first issue, extremely rare and inscribed by Ampère, of this continually evolving collection of important memoirs on electrodynamics by Ampère and others. “Ampère had originally intended the collection to contain all the articles published on his theory of electrodynamics since 1820, but as he pre- pared copy new articles on the subject continued to appear, so that the fascicles, which apparently began publication in 1821, were in a constant state of revision, with at least five versions of the collection appearing between 1821 and 1823 un- der different titles” (Norman). The collection begins with ‘Mémoires sur l’action mutuelle de deux courans électriques’, Ampère’s “first great memoir on electrody- namics” (DSB), representing his first response to the demonstration on 21 April 1820 by the Danish physicist Hans Christian Oersted (1777-1851) that electric currents create magnetic fields; this had been reported by François Arago (1786- 1853) to an astonished Académie des Sciences on 4 September. -
Carnegie Institution of Washington Monograph Series
BTILL UMI Carnegie Institution of Washington Monograph Series BT ILL UMI 1 The Carnegie Institution of Washington, D. C. 1902. Octavo, 16 pp. 2 The Carnegie Institution of Washington, D. C. Articles of Incorporation, Deed of Trust, etc. 1902. Octavo, 15 pp. 3 The Carnegie Institution of Washington, D. C. Proceedings of the Board of Trustees, January, 1902. 1902. Octavo, 15 pp. 4 CONARD, HENRY S. The Waterlilies: A Monograph of the Genus Nymphaea. 1905. Quarto, [1] + xiii + 279 pp., 30 pls., 82 figs. 5 BURNHAM, S. W. A General Catalogue of Double Stars within 121° of the North Pole. 1906. Quarto. Part I. The Catalogue. pp. [2] + lv + 1–256r. Part II. Notes to the Catalogue. pp. viii + 257–1086. 6 COVILLE, FREDERICK VERNON, and DANIEL TREMBLY MACDOUGAL. Desert Botani- cal Laboratory of the Carnegie Institution. 1903. Octavo, vi + 58 pp., 29 pls., 4 figs. 7 RICHARDS, THEODORE WILLIAM, and WILFRED NEWSOME STULL. New Method for Determining Compressibility. 1903. Octavo, 45 pp., 5 figs. 8 FARLOW, WILLIAM G. Bibliographical Index of North American Fungi. Vol. 1, Part 1. Abrothallus to Badhamia. 1905. Octavo, xxxv + 312 pp. 9 HILL, GEORGE WILLIAM, The Collected Mathematical Works of. Quarto. Vol. I. With introduction by H. POINCARÉ. 1905. xix + 363 pp. +errata, frontispiece. Vol. II. 1906. vii + 339 pp. + errata. Vol. III. 1906. iv + 577 pp. Vol. IV. 1907. vi + 460 pp. 10 NEWCOMB, SIMON. On the Position of the Galactic and Other Principal Planes toward Which the Stars Tend to Crowd. (Contributions to Stellar Statistics, First Paper.) 1904. Quarto, ii + 32 pp. -
The Secretary Presented a Provisional Draft of a Bulletin of the National
REPORT OF THE ANNUAL MEETING 479 Academy of Sciences be requested to invite the Secretary of the Smithsonian Institution to serve as Chairman of the Government Division; and further that the President of the Acad- emy be requested to present to the President of the United States the personnel of the Gov- ernment Division to be designated as members of the National Research Council in the Gov- ernment Division. (Adopted.) The Secretary presented a provisional draft of a bulletin of the National Research Council containing a full description of its organization including the membership of its Divisions and Committees. Moved: That the draft of the organization of the National Research Council, including the membership of its Divisions and Committees, be printed, subject to the regulations re- lating to the printing of bulletins adopted at the meeting of the Executive Board on June 10, 1919. (Adopted.) Moved: That Mr. S. L. G. Knox be appointed Assistant to the Scientific Attaches at Paris and Rome, without salary, from April 15 to June 30, 1919, and to Sept. 30, 1919, if Attaches are continued. (Adopted.) Moved: That Mr. Donald J. Cowling, President of Carleton College, be nominated to represent the Association of American Colleges in the Division of Educational Relations in the National Research Council, with recommendation to the President of the National Academy of Sciences that Mr. Cowling be appointed a member of the National Research Council and assigned to the Division of Educational Relations. (Adopted.) The meeting adjourned at 10.45 a.m. PAUL BROCETTr, Assistant Secretary. REPORT OF THE ANNUAL MEETING OF THE ACADEMY PREPARED BY THE HOME SECRETARY The Annual Meeting of the National Academy of Sciences was held at the Smithsonian Institution, Washington, D. -
Great Discoveries Made by Radio Astronomers During the Last Six Decades and Key Questions Today
17_SWARUP (G-L)chiuso_074-092.QXD_Layout 1 01/08/11 10:06 Pagina 74 The Scientific Legacy of the 20th Century Pontifical Academy of Sciences, Acta 21, Vatican City 2011 www.pas.va/content/dam/accademia/pdf/acta21/acta21-swarup.pdf Great Discoveries Made by Radio Astronomers During the Last Six Decades and Key Questions Today Govind Swarup 1. Introduction An important window to the Universe was opened in 1933 when Karl Jansky discovered serendipitously at the Bell Telephone Laboratories that radio waves were being emitted towards the direction of our Galaxy [1]. Jansky could not pursue investigations concerning this discovery, as the Lab- oratory was devoted to work primarily in the field of communications. This discovery was also not followed by any astronomical institute, although a few astronomers did make proposals. However, a young electronics engi- neer, Grote Reber, after reading Jansky’s papers, decided to build an inno- vative parabolic dish of 30 ft. diameter in his backyard in 1935 and made the first radio map of the Galaxy in 1940 [2]. The rapid developments of radars during World War II led to the dis- covery of radio waves from the Sun by Hey in 1942 at metre wavelengths in UK and independently by Southworth in 1942 at cm wavelengths in USA. Due to the secrecy of the radar equipment during the War, those re- sults were published by Southworth only in 1945 [3] and by Hey in 1946 [4]. Reber reported detection of radio waves from the Sun in 1944 [5]. These results were noted by several groups soon after the War and led to intensive developments in the new field of radio astronomy. -
A History of Star Catalogues
A History of Star Catalogues © Rick Thurmond 2003 Abstract Throughout the history of astronomy there have been a large number of catalogues of stars. The different catalogues reflect different interests in the sky throughout history, as well as changes in technology. A star catalogue is a major undertaking, and likely needs strong justification as well as the latest instrumentation. In this paper I will describe a representative sample of star catalogues through history and try to explain the reasons for conducting them and the technology used. Along the way I explain some relevent terms in italicized sections. While the story of any one catalogue can be the subject of a whole book (and several are) it is interesting to survey the history and note the trends in star catalogues. 1 Contents Abstract 1 1. Origin of Star Names 4 2. Hipparchus 4 • Precession 4 3. Almagest 5 4. Ulugh Beg 6 5. Brahe and Kepler 8 6. Bayer 9 7. Hevelius 9 • Coordinate Systems 14 8. Flamsteed 15 • Mural Arc 17 9. Lacaille 18 10. Piazzi 18 11. Baily 19 12. Fundamental Catalogues 19 12.1. FK3-FK5 20 13. Berliner Durchmusterung 20 • Meridian Telescopes 21 13.1. Sudlich Durchmusterung 21 13.2. Cordoba Durchmusterung 22 13.3. Cape Photographic Durchmusterung 22 14. Carte du Ciel 23 2 15. Greenwich Catalogues 24 16. AGK 25 16.1. AGK3 26 17. Yale Bright Star Catalog 27 18. Preliminary General Catalogue 28 18.1. Albany Zone Catalogues 30 18.2. San Luis Catalogue 31 18.3. Albany Catalogue 33 19. Henry Draper Catalogue 33 19.1.