41. Aston, Francis William francis william aston was born in September 1877 at Harborne, Birmingham, England, the third of a family of seven children. He was educated at Harborne http://www.birmingham.gov.uk/printer/GenerateContent?CONTENT_ITEM_ID=5199&CONTEN

42. Aston, Francis William - MSN Encarta aston, francis william (18771945), British physicist and Nobel laureate, born in Harborne, Birmingham, and educated at Malvern College, http://uk.encarta.msn.com/encyclopedia_761560056/Aston_Francis_William.html

var s_account="msnportalencartauk"; MSN Home Hotmail My MSN Sign in ... more Hotmail Messenger My MSN MSN Directory Auctions Cars Entertainment Games ... More Additional Reference Thesaurus Bilingual Dictionaries Sidebar Primary Resources Homework Resources Foreign Language Help Times Archive Literature Guides ... Project Starters Support Encarta Products Encarta Answers Encarta Worldwide Help Related Items Atom Elements, Chemical more... Encarta Search Search Encarta about Aston, Francis William Aston, Francis William Encyclopedia Article Find in this article View printer-friendly page E-mail Multimedia 1 item Aston, Francis William (1877-1945), British physicist and Nobel laureate, born in Harborne, Birmingham, and educated at Malvern College, University of Birmingham , and Trinity College University of Cambridge . Aston built (1919) the first mass spectrometer and with it showed that many elements are mixtures of two or more isotopes with slightly different atomic weights. Aston's work, which was accurate to 0.1 per cent, was the first quantitative study applicable to all the elements. For his discoveries he received many honours, including the Nobel Prize for Chemistry in 1922. He wrote

43. Digital Archive Obituary notice francis william aston, 1877–1945; Marmaduke Barrowcliff, 1883–1945; John Masson Gulland, 1898–1947. G Hevesty, CJT Cronshaw, RD Haworth http://xlink.rsc.org/?DOI=JR9480001468

44. Cambridge Physics - Splitting The Atom On 1st September 1877 francis william aston was born at Harborne, a few miles from Birmingham. He was the third child in a family of seven, http://www-outreach.phy.cam.ac.uk/camphy/physicists/physicists_aston.htm

Jump back to: THE MASS SPECTROGRAPH 6. Neon Problems Francis William Aston "There is scarcely a research in nuclear physics which does not use his work, directly or indirectly, and usually many times over." G.P. Thomson On 1st September 1877 Francis William Aston was born at Harborne, a few miles from Birmingham. He was the third child in a family of seven, and enjoyed playing with mechanical toys in his youth. Aston was first educated at Harborne Vicarage School, but began to study science at Malvern College, where he demonstrated his ability in chemistry, physics and mathematics. Aston was at Malvern for two years before entering Mason College, Birmingham, in 1893. At Mason College, Aston was taught chemistry by Tilden and Frankland, and physics by Poynting. In 1898 he was awarded the Forster Scholarship and worked in collaboration with Frankland to publish his first paper in 1901. In 1908 Aston's father died, leaving Aston enough money to travel around the world. The following year Professor J.J. Thomson invited Aston to move to the Cavendish Laboratory and work as Thomson's assistant. Aston had been recommended to Thomson by his former teacher Poynting, and was happy to accept the Cambridge post which would leave him more time for research. Since his discovery of the electron Thomson had been analysing positive rays, and had developed a method of measuring atomic weights by using combinations of magnetics and electric fields to produce curves on a photographic plate. Aston helped to further refine these experiments.

45. Title List 16th Century 17th Century 18th Century 19th Century 19001950 1950-2000 Date Unknown. View E-Books. Sidereus Nuncius Magna. Works by aston, francis william http://digital.libraries.ou.edu/histsci/author.asp?author=Aston, Francis William

46. Aston aston, francis william (szül. 1877. szept. 1. Harborne, Birmingham, Anglia megh. 1945. nov. 20. Cambridge, Cambridgeshire), angol fizikus, http://www.mezgazd-koszeg.sulinet.hu/diak/kemia/data/tudosok/data/aston.html

Aston, Francis William (szül. 1877. szept. 1. Harborne, Birmingham, Anglia - megh. 1945. nov. 20. Cambridge, Cambridgeshire), angol fizikus, aki a tömegspektrográf megalkotásáért és számos nuklid - egymástól csak tömegében különbözô atommag - felfedezéséért 1922-ben kémiai Nobel-díjat kapott. A tömegspektrográf olyan berendezés, amellyel különbözô tömegu atomok és molekulatöredékek szétválaszthatók, és e tömegeket nagyon pontosan meg is lehet mérni. A tömegspektrográfot széles körben használják a geológiában, a kémiában, a biológiában és a magfizikában. Aston kémiát tanult, de miután a röntgensugarak (1895) és a radioaktivitás (1896) felfedezése nyomán a fizika újjászületett, 1903-ban azt kezdte vizsgálni, hogy gázzal töltött csôben folyó áram hatására miként keletkezik röntgensugárzás. 1910-ben, Cambridge-ben Sir Joseph John Thomson asszisztense lett, aki a gázkisülésekbôl származó, pozitív töltésu sugarakat tanulmányozta. Aston asszisztensségének ideje alatt Thomson a neonnal végzett kísérletei nyomán találta meg annak bizonyítékát, hogy a stabilis (nem radioaktív) elemeknek izotópjaik vannak. (Az izotópok ugyanazon elem különbözô tömegu atomjai.) Az I. világháború után Aston pozitív töltésu sugarakkal muködô új berendezést készített, amelynek a "tömegspektrográf" nevet adta. Ezzel kimutatta, hogy nemcsak a neon, hanem sok más elem is izotópok keveréke. A természetben elôforduló 287 nuklid közül 217-et Aston fedezett fel.

47. Francis (William) Aston Biography - Biography.com Learn about the life of francis (william) aston at Biography.com. Read Biographies, watch interviews and videos. http://www.biography.com/search/article.do?id=9191133

48. Results: Edgar Fahs Smith Collection FW aston. aston, francis william, 1877 1945. Search Results 1 through 1 of 1 TEXT LIST SLIDE SHOW NEW SEARCH HOME http://imagesvr.library.upenn.edu/cgi/i/image/image-idx?type=simple&q1=[21]&cat1

49. Science And Society Picture Library - Search aston, francis william Images 13 of 3 (Page 1 of 1) 10288989. francis william aston, English chemical physicist, c 1920s. http://www.scienceandsociety.co.uk/results.asp?txtkeys1=Aston, Francis William

50. The National Archives | National Register Of Archives | Person Details | Archive aston, francis william (18771945), physicist. GB/NNAF/P143484 (Former ISAAR ref GB/NNAF/P933). Archival Information Historical information http://www.nationalarchives.gov.uk/nra/searches/subjectView.asp?ID=P933

51. Francis William Aston - Indopedia, The Indological Knowledgebase francis william aston (born Birmingham, September 1 1877; died Cambridge, November 20 1945) was a British physicist who won the 1922 Nobel Prize in http://www.indopedia.org/Francis_William_Aston.html

Indopedia Main Page FORUM Help ... Log in The Indology CMS Categories 1877 births 1945 deaths Nobel Prize in Chemistry winners ... Wikipedia Article Francis William Aston ज्ञानकोश: - The Indological Knowledgebase Francis William Aston (born Birmingham September 1 ; died Cambridge November 20 ) was a British physicist who won the Nobel Prize in Chemistry for the invention of the mass spectrometer In he won a scholarship to the University of Birmingham and it was in his studies of electronic discharge tubes there that he discovered the phenomenon now known as the Aston Dark Space . In he moved to the Cavendish Laboratory in Cambridge on the invitation of J.J. Thomson and worked on the identification of isotopes of the element neon . Returning to these studies after the First World War in , he used a method of electromagnetic focusing to invent the mass spectrograph, which rapidly allowed him to identify no fewer than 212 of the 287 naturally occurring isotopes. His work on isotopes also led to his formulation of the Whole Number Rule which states that "the mass of the oxygen isotope being defined, all the other isotopes have masses that are very nearly whole numbers," a rule that was used extensively in the development of

52. Francis W. Aston francis W. aston. francis W. aston AKA francis william aston. Born 1Sep-1877 Birthplace Harborne, Birmingham, England Died 20-Nov-1945 http://www.nndb.com/people/289/000099989/

This is a beta version of NNDB Search: All Names Living people Dead people Band Names Book Titles Movie Titles Full Text for Francis W. Aston AKA Francis William Aston Born: 1-Sep Birthplace: Harborne, Birmingham, England Died: 20-Nov Location of death: Cambridge, Cambridgeshire, England Cause of death: unspecified Gender: Male Race or Ethnicity: White Occupation: Chemist Nationality: England Executive summary: Invented the mass spectograph High School: Harborne Vicarage School High School: Malvern College University: University of Birmingham (1894-) Scholar: Cavedish Laboratory, Cambridge University (1909-) Nobel Prize for Chemistry Hughes Medal Royal Medal ... Accademia dei Lincei Author of books: Isotopes Structural Units of the Material Universe Do you know something we don't? Submit a correction or make a comment about this profile

53. Isotopes And Atomic Weights. 299-310 Pp. In: Notices Of The Proceedings At The M Author Name aston, francis william (18771945). Title Isotopes and atomic weights. 299-310 pp. In Notices of the proceedings at the meetings of the http://www.weberrarebooks.com/?page=shop/flypage&product_id=9372&CLSN_2225=12000

54. SSPL Prints aston, francis william, browse. Personalities, aston, francis william francis william aston, English chemical physicist, c 1920s. http://www.ssplprints.com/thumbnails.php?collid=2607

55. Biographical Notes francis william aston. A British physicists, francis william aston (18771945) invented the Mass Spectrometer and used it to identify and separate the http://www.ucc.ie/academic/chem/dolchem/html/biog/biog001.html

Svante August Arrhenius A Swedish physical chemist, Svante August Arrhenius (1859-1927) was born near Uppsala, he became a professor at Stockholm in 1895, and his special study was Electrolysis . He developed the theory concerning the properties of ionic species in solution. They are Arrhenius Concept of Bases Arrhenius Concept of Neutralisation and Arrhenius Concept of Acids He wrote "Worlds in the Making and Destinies of the Stars" He was awarded the Nobel Prize for Chemistry in 1903AD. In 1905 he predicted global warming as a result of carbon dioxide emission from burning fuels. Francis William Aston A British physicists, Francis William Aston (1877-1945) invented the Mass Spectrometer and used it to identify and separate the Isotopes , of elements, for which he was awarded the Nobel prize for Chemistry in 1922. Count Amedeo Avogadro An Italian physicist, Count Amedeo Avogadro, published his hypothesis in 1811AD, which states that equal volumes of gases under the same conditions of temperature and pressure contain the same number of molecules. His work was revived by Cannizzaro The Avogadro's Number , N, 6.02 X 10^23 is the number of molecules in one mole of a substance.

56. Francis William Aston (1877-1945) English Chemist And Physicist aston returned to Cambridge after Word War I and constructed a new type of mass spectrograph and discovered the existence of isotopes in many elements (of http://www.chem.uky.edu/courses/che105/biografy/aston.html

Francis William Aston English chemist and physicist born in Harborne, Birmingham. He was educated at the universities of Birmingham and Cambridge. In 1909 he became an assistant to J. J. Thomson at Cambridge and worked with him on many studies with the parabola mass spectroscope. Aston returned to Cambridge after Word War I and constructed a new type of mass spectrograph and discovered the existence of isotopes in many elements (of 281 naturally-occurring isotopes, Aston discovered 212). He also calculated atomic weights from nuclidic masses and abundances, and brought about the use in physics of the mass of oxygen-16 as exactly 16, whence all other elements had nearly integer masses. He was awarded the Nobel Prize in Chemistry in 1922 for his development of the mass spectrograph, the discovery of isotopes of non-radioactive elements, and the enunciation of the whole number rule. In later years he measured with ever greater precision the nuclidic masses of many elements.

57. Francis William Aston Translate this page francis william aston Físico inglés Nació en Harborne en el año 1877. Cursó estudios en Birmingham y en Cambridge, donde trabajó con Joseph John Thomson http://www.buscabiografias.com/cgi-bin/verbio.cgi?id=2994

58. Biographical Database Of British Chemists, Open University aston, francis william. BIRTH. 1877 Harbourne, Birmingham, Warwickshire, England. DEATH. 1945 Cambridge, Cambridgeshire, England. REFERENCES http://www.open.ac.uk/ou5/Arts/chemists/person.cfm?SearchID=2856

59. British Mass Spectrometry Society - Awards francis william aston. francis william aston was born in September 1877 at Harborne, Birmingham, the third of a family of seven children. http://www.bmss.org.uk/aston.htm

Francis William Aston Francis William Aston was born in September 1877 at Harborne, Birmingham, the third of a family of seven children. He was educated at Harborne Vicarage School and Malvern College where his interest in science was aroused. In 1894 Aston entered Mason College, Birmingham (later to become the University of Birmingham) where he studied chemistry under Frankland and Tilden, and Physics under Poynting. His winning of the Forster Scholarship in 1898 enabled him to work on the optical properties of tartaric acid derivatives; the results of this work were published in 1901. Leaving academic life for a time, he worked for three years as a chemist in the laboratory of a brewery. At about this time, however, his interest in physics, rather than chemistry, began to predominate; his aptitude for mechanical contrivance showed itself in his design and construction of new types of pumps for evacuating vessels. From this stemmed his interest in gas discharge phenomena in evacuated tubes. In 1903 he obtained a scholarship to Birmingham University (as it had now become) to work on the properties of the Crookes Dark Space in discharge tubes. Within a short time he had discovered the phenomenon which is known as the Aston Dark Space. At the end of 1909 he accepted the invitation of Sir J.J.Thomson to work as his assistant at the Cavendish Laboratory, Cambridge, on studies of positive rays. It was during this period that he obtained definite evidence for the existence of two isotopes of the inert gas neon.

60. Aston, Francis William -- Britannica Online Encyclopedia francis william aston.,British physicist who won the Nobel Prize for Chemistry in 1922 for his development of the mass spectrograph, a device that separates http://student.britannica.com/eb/art-17831/Francis-William-Aston

document.writeln(AAMB1); Already a member? LOGIN Home Free Trial Guided Tour Britannica Online Aston, Francis William Francis William Aston. Corbis-Bettmann To cite this page: MLA style: Aston, Francis William http://student.britannica.com/eb/art-17831 APA style: Aston, Francis William . [Photograph]. Retrieved http://student.britannica.com/eb/art-17831 document.writeln(AAMB2); document.writeln(AAMB3); About Us Legal Notices Contact Us Britannica Store ... Syndication Other Britannica sites: Australia France India Korea ... More

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