41. Ryle’s Last Testimony sir martin ryle died on 14 October 1984. ryle was best known as a radio astronomer one of the first astronomers to win the Noble Prize for Physics - but http://www.vidyaonline.net/arvindgupta/Ryle.htm

Ryle’s Last Testimony Sir Martin Ryle died on 14 October 1984. Ryle was best known as a radio astronomer - one of the first astronomers to win the Noble Prize for Physics - but the main activity of the last decade of his life was his campaign against nuclear weapons and the nuclear power industry. This letter was sent several months before Ryle died to Professor Carlos Chagas, president of the Pontifical Academy of Sciences. The letter expresses great despair at the way science is being misused, and can be read as the last testimony of a distinguished scientist. You will agree that Ryle’s last thoughts deal with some of the most crucial and fundamental issues of out time. 24 February 1983 Dear Professor Chagas, You ask a very difficult question in seeking topics, which should be discussed in considering the contribution, which scientists, may (should) make towards peace. I am afraid that I can only express my own views and hope that out of them some topics may emerge. I think one cannot separate science from the political/military/historical background, and perhaps, I should summarise my personal views here first. Inevitably I see through British eyes, but I think the view might have been similar if I had spent my life in any European country. Political: The USSR exists, the US exists; they must either learn to live together, or die together.

42. Ryle, Sir Martin --  Britannica Concise Encyclopedia - Your Gateway To All Bri ryle, sir martin body British radio astronomer. Autobiographies of sir martinryle and Antony Hewish. Includes the press release issued by the Noble http://concise.britannica.com/ebc/article-9377371

Home Browse Store Help Search Britannica Concise Again Ryle, Sir Martin Concise Encyclopedia Article Page 1 of 1 Sir Martin Ryle born Sept. 27, 1918, Brighton, Sussex, Eng. died Oct. 14, 1984, Cambridge, Cambridgeshire British radio astronomer. After receiving a Ph.D. in physics from the University of Oxford, he helped design radar equipment during World War II. He was an early investigator of extraterrestrial radio signals. Ryle guided the Cambridge radio astronomy group in the production of radio source catalogs. The Third Cambridge Catalogue (1959) helped lead to the discovery of the first quasar . To map distant radio sources, he developed a technique called aperture synthesis, which provided tremendously increased resolving power for radio telescope s and was used to locate the first pulsar . In 1974 he and Antony Hewish shared a Nobel Prize. var mm = [["Jan.","January"],["Feb.","February"],["Mar.","March"],["Apr.","April"],["May","May"],["June","June"],["July","July"],["Aug.","August"],["Sept.","September"],["Oct.","October"],["Nov.","November"],["Dec.","December"]]; To cite this page: MLA style: "Ryle, Sir Martin."

43. Martin Ryle - Wikipedia, The Free Encyclopedia sir martin ryle died October 14, 1984, in Cambridge. martin ryle was undoubtablyone of the great astronomers of the 20th Century. http://en.wikipedia.org/wiki/Sir_Martin_Ryle

Martin Ryle From Wikipedia, the free encyclopedia. (Redirected from Sir Martin Ryle Sir Martin Ryle September 27 October 14 ) was a British radio astronomer who developed revolutionary radio telescope systems (see e.g. aperture synthesis ) and used them for accurate location and imaging of weak radio sources. In Ryle and Vonberg were the first people to publish interferometric astronomical measurements at radio wavelengths, although it is claimed that Joseph Pawsey from the University of Sydney had actually made interferometric measurements earlier in the same year. With improved equipment, Ryle observed the most distant known galaxies in the universe at that time. He was the first Professor of Radio Astronomy at the University of Cambridge , and founding director of the Mullard Radio Astronomy Observatory . He was Astronomer Royal from to Ryle and Antony Hewish shared the Nobel Prize for Physics in , the first Nobel prize awarded in recognition of astronomical research. Contents Short biography Honours External link Obituaries ... edit Short biography After earning a physics degree at the University of Oxford in , Ryle worked with the Telecommunications Research Establishment on the design of radar equipment during World War II . After the war he received a fellowship at the Cavendish Laboratory . The focus of early work in Cambridge was on radio waves from the Sun. Ryle's interest quickly shifted to other areas, however, and to explore those he decided early on that the

44. Martin Ryle martin ryle. martin ryle Born 27Sep-1918 He also served as AstronomerRoyal (1972–82), succeeding sir Richard Woolley. Father John A. ryle (physician http://www.nndb.com/people/889/000099592/

This is a beta version of NNDB Search: All Names Living people Dead people Band Names Book Titles Movie Titles Full Text for Martin Ryle Born: 27-Sep-1918 Birthplace: Brighton, Sussex, England Died: 14-Oct-1984 Location of death: Cambridge, Cambridgeshire, England Cause of death: unspecified Gender: Male Ethnicity: White Sexual orientation: Straight Occupation: Astronomer Level of fame: Niche Executive summary: Radio astronomer Ryle worked on radar and radio systems for the RAF during World War II, at the Telecommunications Research Establishment. After the war, he worked at Cambridge on stellar catalogues, helping to produce the Third Cambridge Catalogue (1959) this was the first catalogue to include a quasar. Most importantly, he invented a method, aperture synthesis , to measure weak radio sources using multiple radio telescopes whose position can be changed in relationship to each other. This had the effect of simulating a much larger telescope. For this he was the first astronomer awarded the Nobel Prize, in 1974. He also served as Astronomer Royal (1972–82), succeeding Sir Richard Woolley. Father: John A. Ryle (physician)

45. October 14 - Today In Science History sir martin ryle. (source), Died 14 Oct 1984 (born 27 Sep 1918) British radioastronomer who developed revolutionary radio telescope systems and used them http://www.todayinsci.com/10/10_14.htm

Visit our new gallery of Perpetual Motion Machines through the centuries OCTOBER 14 - BIRTHS J. Craig Venter (source) Born 14 Oct 1946 American molecular geneticist who pioneered the use of automated gene sequencers. In 1990, he developed "expressed sequence tags" (ESTs), a new strategy for gene discovery and tagging that revolutionized the biological sciences. In 1995, Venter, in collaboration with Hamilton Smith, determined the DNA sequence of the entire genome (all the genetic material of an organism) of Hemophilus influenzae, a bacterium that causes earaches and meningitis in humans. The achievement marked the first time that the complete sequence of a free-living organism had been deciphered, and it was accomplished in less than a year. He founded the Institute for Genomic Research (TIGR). By 2000, his company Celera Genomics sequenced the human genome. The Genome War: How Craig Venter Tried to Capture the Code of Life and Save the World , by James Shreeve. George Harold Brown (source) Born 14 Oct 1908; died 11 Dec 1987. American electrical engineer, a pioneer in radio-thermics, who made major contributions to the development of radio and television broadcast antennas. In 1936, Brown invented the so-called turnstyle antenna for television broadcasting. Because of this, the Federal Communications Commission (FCC) adopted a TV system of 441 lines. In 1938, Brown developed the vestigial sideband filter for use in television transmission, doubling the horizontal resolution of television pictures at any given bandwith. During WW II, with RCA’s researchers, George Brown’s group used radio-frequency heating in the bulk dehydration of penicillin at E.R. Squibb, a "sewing machine" for thermoplastics, and more consistent riveting and welding techniques.

46. September 27 - Today In Science History sir martin ryle. (source), Born 27 Sep 1918; died 14 Oct 1984. British radioastronomer who developed revolutionary radio telescope systems and used them http://www.todayinsci.com/9/9_27.htm

Visit our new gallery of Perpetual Motion Machines through the centuries SEPTEMBER 27 - BIRTHS Robert Edwards (source) Born 27 Sep 1925 Robert (Geoffrey) Edwards is a British medical researcher who, with Patrick Steptoe, perfected in-vitro fertilization of the human egg. Their technique made possible in the birth of Louise Brown, the world's first "test-tube baby," on 25 July 1978. Henry Melson Stommel (source) Born 27 Sep 1920; died 17 Jan 1992. American oceanographer and meteorologist who was an expert on physical oceanography, primarily in the interpretation of data associated with large scale ocean dynamics. He had a long standing interest in the Gulf Stream. He spent most of his career conducting research at the prestigious Oceanographic Institute in Woods Hole, Massachusetts. Considered one of the most influential oceanographers of his time, Stommel proposed many theories that were later proven to be correct by other scientists. He applied electromagnetic measurements to oceanic flows, the dynamics of estuaries and the related problem of hydraulic controls, and the interaction of nonlinear eddy-like phenomena (hetons). Sir Martin Ryle (source) Born 27 Sep 1918; died 14 Oct 1984.

47. Nobelpreistraeger Sir Martin Ryle Vip Promi Und Vip Linkliste Inkl. Stars & Ster http://www.multifind.de/vip/Nobelpreistraeger.vip.Sir._.Martin._.Ryle.html

Nobelpreistraeger Sir Martin Ryle Startseite Vip Nobelpreistraeger Sir Martin Ryle Webseiten zum Thema Sir Martin Ryle :: Nobelpreistraeger Weitere Themen, die Sie auch interessieren könnten: Startseite Webverzeichnis Seite anmelden Werben Sie bei uns! ... AGBs

48. AIP Niels Bohr Library Search and research, by sir martin ryle, N. Kurti and RLF Boyd; editor John P.Wilson. by ryle, martin, sir, 1918 http://www.aip.org/history/catalog/21575.html

If you are not immediately redirected, please click here My List - Help Browse Books Archival Resources Archival Finding Aids Photos Browse FAQs Past Searches History Home Search: Author Subject Title Journal/Newspaper Title Series Computer File (Software) Title Video Title Refine Search AIP Niels Bohr Library Item Information Holdings More by this author Ryle, Martin, Sir, 1918- Subjects Mullard Limited. Research Great Britain. Browse Catalog by author: Ryle, Martin, Sir, 1918- by title: Search and research,... MARC Display Search and research, by Sir Martin Ryle, N. Kurti [and] R. L. F. Boyd; editor John P. Wilson. by Ryle, Martin, Sir, 1918- London, Mullard Ltd, 1971. 1971. Call Number: C7:3 RYL Description: 138 p. illus., ports. 24 cm. Notes: "Prepared largely from tape-recorded interviews in the laboratories supplemented by information from published and private papers." ISBN: Added Author: Kurti, Nicholas, 1908- Boyd, R. L. F. Wilson, John Peter, 1919- ed. Copy/Holding information Location Collection Call No. Status Niels Bohr Library Books General Collection C7:3 RYL In NBL Format: HTML Plain text Delimited Subject: Email to: Horizon Information Portal 3.0

49. AIP International Catalog Of Sources More by this author. ryle, martin, sir, 1918. Subjects. ryle, martin, sir,1918- Archives. Browse Catalog. by author. ryle, martin, sir, 1918- http://www.aip.org/history/catalog/25118.html

If you are not immediately redirected, please click here My List - Help Browse Archival Resources Archival Finding Aids Books Photos Browse FAQs Past Searches History Home Search: Author Subject Title Journal/Newspaper Title Series Computer File (Software) Title Video Title Refine Search AIP Niels Bohr Library Item Information Holdings More by this author Ryle, Martin, Sir, 1918- Subjects Ryle, Martin, Sir, 1918- Archives. Browse Catalog by author: Ryle, Martin, Sir, 1918- by title: Papers.... MARC Display Papers. by Ryle, Martin, Sir, 1918- Description: 65 boxes. Owning Repository: Churchill College. Archives Centre. Cambridge CB3 0DS Web Site: http://www.chu.cam.ac.uk/archives/ (Repository information) Country of Repository: England Biography/History: British astronomer. Prof. of radio astronomy, Univ. of Cambridge; Astronomer Royal, 1972-1982; Nobel prize in physics, 1974. d. 1984. Scope of Material: Scientific correspondence and papers. Provenance: Deposited at Churchill Archives Centre between 1986-2002. Access Restrictions: Some sections of the collection are open to researchers. A prior appointment and two forms of identification are required. Notes: Deposited at Churchill Archives Centre between 1986-2002.

50. Sir Martin Ryle (1918-1984) Translate this page sir martin ryle (1918-1984). Nacque a Brighton (UK) e durante lo Secondo GuerraMondiale si specializzò come tecnico di strumenti radar per lo difesa http://www.castfvg.it/zzz/ids/ryle_martin.html

Sir MARTIN RYLE (1918-1984) Nacque a Brighton (UK) e durante lo Secondo Guerra Mondiale si specializzò come tecnico di strumenti radar per lo difesa britannica. Fu grazie a questa sua esperienza che divenne un sicuro punto di riferimento per lo sviluppo della radioastronomia all'Università di Cambridge, dove insegnò fisica dal 1948 al 1959 e successivamente radioastronomia. Nel 1957 divenne direttore del Mullard Radio Astronomy Observatory; le sue ricerche iniziarono con l'emissione solare, ma il suo grande merito fu l'impegno nel portare avanti un censimento di tutte le radiosorgenti per classificarle; a tale scopo intraprese la costruzione di radiotelescopi di nuova concezione come i radiointerferometri, che consentirono alla radioastronomia di superare in risoluzione gli strumenti ottici, risoluzione successivamente migliorata dalla sua invenzione della "sintesi di apertura". Per i notevoli risultati conseguiti, vinse nel 1974 il Premio Nobel per la fisica , che condivise con Antony Hewish, un altro radioastronomo di Cambridge, diventato famoso grazie alla scoperta delle pulsar (in realtà scoperte da Jocelyn Bell Informazioni tratte dall'articolo "Westerbork un gigante all'ascolto del cosmo" di P. Ardizio

51. Janus: The Papers Of Sir Martin Ryle Title, The Papers of sir martin ryle. Reference, GBR/0014/ryle. Creator, ryle,sir martin, 19181984, Professor of Radio Astronomy http://janus.lib.cam.ac.uk/db/node.xsp?id=EAD/GBR/0014/RYLE

52. People (N-S)- Authors, Designers, Sailors, Book Reviews, AYRS Affairs sir martin, 51=c, Designed. ryle, Prof. sir martin, 54= 1113, Designed ALLOETTE.ryle, Prof. sir martin, 74= 73-77 101-102, Designed AVOCET http://www.dcss.org/ayrs/13C.html

Index of Publications. Issues nos. 1-120, 1955-1996 Chapter 13C) People (N-S)- authors, designers, sailors, book reviews, AYRS affairs Notes: bc = back cover c = front cover ic = inside cover ibc = inside back cover p = picture * = superceded by later publication 13 = Self steering 3rd edition (earlier editions have different page nos) 78 = Cruising catamarans 2nd edition (earlier edition has different page nos) Issue names, dates and availability, ordering information Previous Chapter Naish, Norman Article about fibreglass Nason, Henry W. Designed Aquacat (mod) Nason, Henry W. Designed Aquacat (mod) Naylor, Brian Article about roller reefing Naylor, Roland Designed Anticipation Needham, V.E. Article about differential steering Needham, V.E. Designed bipod rig Needham, V.E. Designed GENETTE I/II Needham, V.E. Article about capsize Needham, V.E. Article about differential steering Neto, Antonio Portella Designed Neumark, O.W. Designed sail glider Newick, Dick designed CHEERS Newick, Richard C. (Dick) Designed AY-AY ferry Newick, Richard C. (Dick)

53. Hydrofoils - Theory, Types, Experience Foils ryle (canted low AR), 29= 23-28, ryle, Prof. sir martin - AVOCET Low aspect ratio - rectangle, 27= 7, ryle, Prof. sir martin http://www.dcss.org/ayrs/7.html

Index of Publications. Issues nos. 1-120, 1955-1996 Chapter 7) Hydrofoils - theory, types, experience Notes: bc = back cover c = front cover ic = inside cover ibc = inside back cover p = picture * = superceded by later publication 13 = Self steering 3rd edition (earlier editions have different page nos) 78 = Cruising catamarans 2nd edition (earlier edition has different page nos) Issue names, dates and availability, ordering information Previous Chapter Subject Issue # = Page(s) Author Advantages of hydrofoils Harris, Robert B. (Bob) Aero-hydro ballast on foiler Morwood, John Air bleed Hook, Christopher Area Morwood, John Aspect ratio Morwood, John Aspect ratio Manners, Erick J. Aspect ratio Manners/Prior/Holtom Aspect ratio Norwood, Joseph Bow steering Bratt, R.R.A. (Reg) Bow steering Wells, S. Wayne - CANARD Bow steering Bratt, R.R.A. (Reg) - SHOOTING STAR Bow steering Bratt, R.R.A. (Reg) - BOREAS Bow steering Nutbeem, Adrian - FREE ENERGY V Bow steering - deep V (Keiper) Keiper, David A. - WILLIWAW Bow steering - deep V (Keiper) Keiper, David A. - WILLIWAW

54. Nobel Prizes In Physics sir martin ryle. British. astrophysics. 1974. Antony Hewish. British. astrophysics.1975. Aage Bohr. Danish. atomic structure. 1975. Ben Mottelson http://www.chem.yorku.ca/NAMED/NOBEL/PHYS/

Nobel Prizes in Physics Department of Chemistry, York University 4700 Keele Street, Toronto, ONTARIO M3J 1P3, CANADA For suggestions, corrections, additional information, and comments please send e-mails to jandraos@yorku.ca http://www.chem.yorku.ca/NAMED/ NOBEL PRIZE PHYSICS YEAR NAME OF SCIENTISTS NATIONALITY TYPE OF PHYSICS Wilhelm Conrad Roentgen German radiation Henrik Antoon Lorentz Dutch magnetism, radiation Pieter Zeeman Dutch magnetism, radiation Pierre Curie French radiation Marie Curie French radiation Antoine Henri Becquerel French radiation Lord John William Strutt Rayleigh British gases Philipp Eduard Anton Lenard Hungarian-German cathode rays Sir Joseph John Thomson British gases Albert Abraham Michelson German-American spectroscopy Gabriel Lippmann French optics Guglielmo Marconi Italian telegraphy Carl Ferdinand Braun German telegraphy Johannes Diderik van der Waals Dutch gases Wilhelm Wien German radiation Nils Gustaf Dalen Swedish gases Heike Kamerlingh-Onnes Dutch cryogenics Max von Laue German crystallography Sir William Henry Bragg British crystallography Sir William Lawrence Bragg British crystallography no prize awarded Charles Glover Barkla British radiation Max Planck German quantum theory, radiation

55. The Nobel Prize For Physics (1901-2004) Brian D. Josephson Supercurrent through tunnel barriers 1974 1974 AntonyHewish Discovery of pulsars 1958 sir martin ryle Pioneering radioastronomy http://math.ucr.edu/home/baez/physics/Administrivia/nobel.html

[Physics FAQ] Compiled by Scott Chase, Phil Gibbs, and Johan Wevers. The Nobel Prize for Physics (1901-2004) The following is a complete listing of Nobel Prize awards, from the first award in 1901. Prizes were not awarded in every year. The date in brackets is the approximate date of the work. The description following the names is an abbreviation of the official citation. The Physics prize is announced near the beginning of October each year. One of the quickest ways to get the announcement is to watch the Nobel Foundation web site at http://www.nobel.se

56. Telegraph Obituary He also challenged the evidence of the radio astronomer sir martin ryle, who inthe 1960s had found similar, if less conclusive, evidence of cosmic origins. http://www-groups.dcs.st-and.ac.uk/~history/Obits2/Hoyle_Telegraph.html

Fred Hoyle Professor Sir Fred Hoyle, who has died aged 86, was Britain's best-known astronomer and (until Stephen Hawking's work became generally known) physicist, as well as a much-admired writer of science fiction; he was also an outrageous mischief-maker who took a delight in enraging his academic colleagues. He and his close associate, Prof Chandra Wickramasinghe, head of mathematics at University College, Wales, used to make other scientists so angry that some even wrote a special sub-program for their word processors which, by pressing a single key, caused the words "Contrary to the views of Hoyle and Wickramasinghe . . . " to appear on the screen. Still greater fury arose from their claim that Darwin's theory of evolution by natural selection was wrong, and that evolution occurred because mutating life forms continually fall from space. Nor, Hoyle thought, was this an accident. It was deliberately arranged long ago by a super-intelligent civilisation who wished to "seed" our planet. To establish this case, they made claims that outraged their critics still further. The accusation that caused the most anger was that Archaeopteryx, one of the most significant pieces of evidence for natural selection, was a fake.

57. - Science Technology 1974 sir martin ryle awarded Nobel Prize in Physics, for pioneering research inradio astrophysics for his observations and inventions, in particular of http://www.britainusa.com/science/other_show_l4.asp?L1=60004&L2=60018&a=7662

58. CWP At Physics.UCLA.edu // Jocelyn Bell Burnell the Nobel Committee the following year did not acknowledge her role in thediscovery of pulsars when it awarded sir martin ryle and Anthony Hewish the http://cwp.library.ucla.edu/Phase2/Burnell,_Jocelyn_Bell@841234567.html

Welcome to CWP at UCLA 86 Eminent Physicists Search the Archive Fascinating Documents AnnotatedPhoto Gallery In Her Own Words Some Physics History ... Photo Credits Astrophysics Contributions Publications Honors Jocelyn Bell Burnell Jobs/Positions Education Additional Information Some Important Contributions Discovered the first four pulsars. Using a radio telescope that she helped build as part of her Ph.D. dissertation, Bell (later Burnell) detected a rapid set of pulses occurring at regular intervals. She determined that the position of the unusual radio source remained fixed with respect to the stars, which meant that it was located beyond the solar system. During the course of the next few months, she discovered 3 more pulsating radio sources (or pulsars). These pulsars were later found to be rapi dly rotating neutron stars. Research at several wavelengths (gamma ray, very short radio, infrared, X-ray) and on many astrophysical topics. Main interest: the astrophysics of neutron stars. Some Important Publications "Observation of a Rapidly Pulsating Radio Source,"

59. Voyager - Frequently Asked Questions Whether or not sir martin ryle is justified in his anxieties about revealing thelocation of our civilization is of course a debatable subject. http://voyager.jpl.nasa.gov/faq.html

+ View the NASA Portal Search JPL Frequently Asked Questions Voyager 2, is it planned to ever reach Pluto? Did either of the Voyagers visit Pluto? Why didn't the Voyagers fly by Pluto? Both Voyagers flew beyond the orbit of Pluto/Neptune in 1989, but neither flew by Pluto, which was elsewhere in its orbit at the time. It was never planned that the Voyagers would visit Pluto. When we send spacecraft through the asteroid belt to the outer planets, how do we navigate the craft through the belt? Pioneers 10 and 11 had preceded the Voyagers to Jupiter and the asteroid belt was a major concern for them. By the 1960's more than 3000 minor planets had been discovered and their orbits well determined. Even 50,000 minor bodies spread over the volume of space occupied by the asteroid belt would produce little direct danger, although a chance collision with an uncatalogued object was possible. "While the largest of the asteroids were known and their orbits charted, many of the asteroids moved in unknown orbits. Although the risk of a spacecraft colliding with a charted asteroid was negligible, there was no way to estimate how many particles the size of a grain of sand might be present in the asteroid belt to collide with the spacecraft and seriously damage it". (From Pioneer, First to Jupiter, Saturn and Beyond, NASA SP-446, 1980) Only be going there could the danger be properly assessed - and Pioneer was first.

60. Famous Oxonians: About Oxford University - University Of Oxford Central Web Page Chief Minister of Trinidad and Tobago 19561959, Premier 1959-1962, PrimeMinister 1962-1981; sir martin ryle, Nobel Prize-winning physicist http://www.ox.ac.uk/aboutoxford/famous.shtml

Quick links: Search Contact search Latest News FAQ Information about: About Oxford University Research Innovation Colleges ... Job Opportunities Famous Oxonians Oxford University About Oxford University > Famous Oxonians Throughout its history, Oxford has produced gifted men and women in every sphere of human endeavour who have studied or taught at the University. Among these are six kings, 46 Nobel prize-winners, 25 UK Prime Ministers, six current holders of the Order of Merit, plus three saints, 86 Archbishops and 18 Cardinals. A few of these famous Oxonians, past and present, are listed here. PLEASE NOTE THAT THIS LIST IS FOR ILLUSTRATIVE PURPOSES ONLY AND IS NOT INTENDED TO BE COMPREHENSIVE. To suggest a name for inclusion on this list, please email information.officer@admin.ox.ac.uk 19th Century 20th Century John Wycliffe, Religious reformer (Picture: Wycliffe Hall) Roger Bacon , scholar William of Ockham , philosopher and theologian Duns Scotus , philosopher and theologian Thomas Bradwardine , Archbishop of Canterbury Simon Bredon , mathematician John Wycliffe , religious reformer Jerome of Prague , Czech religious reformer Cardinal Thomas Wolsey , Lord Chancellor and churchman Sir Thomas More , Lord Chancellor and martyr Erasmus , scholar William Tyndale , translator of the Bible Cardinal William Allen Sir Walter Raleigh , explorer Sir Philip Sidney , poet John Donne , poet William Laud , Archbishop of Canterbury Back to top Edmund Halley, astronomer (Picture: Ashmolean Museum)

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