41. ASTON, FRANCIS WILLIAM (1877 - 1945) aston, francis william (1877 1945). Isotopes. London, 1922. aston s inventionof the mass spectrograph, an instrument giving a concentrated and extremely http://www.scs.uiuc.edu/~mainzv/exhibit/aston.htm

From Alchemy to Chemistry: Five Hundred Years of Rare and Interesting Books University of Illinois at Urbana-Champaign Rare Book Room Exhibit ASTON, FRANCIS WILLIAM (1877 - 1945). Isotopes . London, 1922. Aston's invention of the mass spectrograph, an instrument giving a concentrated and extremely detailed breakdown of the constituents of analyzed material, enabled him to discover that elements are composed of atoms of varying mass, and that the atomic weight of an element is an average of the atoms comprising it. Aston used the word "isotopes" to describe atoms of differing weights within the same element, a term first coined by Frederick Soddy to describe separate elements that are nevertheless homogeneous in chemical behavior. Aston was awarded the Nobel Prize for chemistry in 1922 "for his discovery, by means of his mass spectrograph, of the isotopes of a large number of non-radioactive elements, as well as for his discovery of the whole-number rule." Norman Library of Science Small - 153 KB Large - 656 KB Small -204 KB Large - 793 KB ... Large - 733 KB

42. From Alchemy To Chemistry: Five Hundred Years Of Rare And Interesting Books aston, francis william (1877 1945). Isotopes. London, 1922. PAULING, LINUS (1901 -1994), HAYWARD, ROGER. The Architecture of Molecules. http://www.scs.uiuc.edu/~mainzv/exhibit/

From Alchemy to Chemistry: Five Hundred Years of Rare and Interesting Books This website grew out of an exhibit held at the University of Illinois at Urbana-Champaign Rare Book Room in April 2000. The Eastern Illinois Section of the American Chemical Society provided support for the construction of this website. The exhibit, "From Alchemy to Chemistry: 500 Years of Rare and Interesting Books," was co-curated by Tina Chrzastowski (Chemistry Librarian), Vera Mainz (Director, VOICE NMR Lab, School of Chemical Sciences), and Gregory Girolami (Professor of Chemistry). In the exhibit, the curators tried to convey some of the major shifts in the study of chemistry - not just the movement from alchemy to modern science - but also the way chemists changed the way they talked about their field. One of the themes of the exhibit is how chemists through the ages have used symbols to depict compounds and chemicals - sometimes as secret codes, as with alchemists, sometimes in standardized nomenclature, as with chemists. The exhibit shows how the "standard" nomenclature of chemistry changed many times over the years. See UIUC Press Release for more general information about the exhibit.

43. 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/GenerateContent?CONTENT_ITEM_ID=5199&CONTENT_ITEM_T

44. Francis William Aston (1877-1945) francis william aston, an experimental physicist, was born in Harborne, England,in September 1st 1877, and died in Cambridge, in November 20th 1945. http://nautilus.fis.uc.pt/st2.5/scenes-e/biog/b0006.html

Francis William Aston (1877-1945) Francis William Aston, an experimental physicist, was born in Harborne, England, in September 1st 1877, and died in Cambridge, in November 20th 1945. He worked with Frankland in 1898, with Poynting in 1903, and with J.J Thomson in 1910. He had enormous experience in vacuum techniques what made possible the evidence of the isotopic constitution of a stable element. In 1913 he accomplished the partial separation of isotopes by the diffusion method. In 1922 he received the Nobel Prize of Chemistry. His work is explained in his book Mass Spectra and Isotopes

45. Francis William Aston (1877-1945) Translate this page francis william aston, físico experimental, nasceu em Harborne a 1 de Setembrode 1877, vindo a falecer em Cambridge a 20 de Novembro de 1945. http://nautilus.fis.uc.pt/st2.5/scenes-p/biog/b0006.html

Francis William Aston, físico experimental, nasceu em Harborne a 1 de Setembro de 1877, vindo a falecer em Cambridge a 20 de Novembro de 1945. Trabalhou com Frankland em 1898, Poynting em 1903 e J.J Thomson em 1910. A sua larga experiência em técnicas de vácuo permitiu-lhe pôr em evidência pela primeira vez a constituição isotópica de um elemento estável por meio de análise dos raios positivos. Em 1913 conseguiu uma separação parcial de isótopos por um método de difusão. Obteve o Prémio Nobel da Química em 1922. Deixou a obra Mass spectra and Isotopes

46. AllRefer.com - Francis William Aston (Chemistry, Biography) - Encyclopedia AllRefer.com reference and encyclopedia resource provides complete informationon francis william aston, Chemistry, Biographies. http://reference.allrefer.com/encyclopedia/A/Aston-Fr.html

AllRefer Channels :: Health Yellow Pages Reference Weather September 15, 2005 Medicine People Places History ... Maps Web AllRefer.com You are here : AllRefer.com Reference Encyclopedia Chemistry, Biographies ... Francis William Aston By Alphabet : Encyclopedia A-Z A Francis William Aston, Chemistry, Biographies Related Category: Chemistry, Biographies Francis William Aston Isotopes (1922) and Mass-Spectra and Isotopes Related Categories: People Science and Technology Science and Technology Chemistry ... Biographies More articles from AllRefer Reference on Francis William Aston SITE MAPS Encyclopedia US Gazetteer: US States A-C US States D-H US States I-L US States M ... Countries A-Z Content on this web site is provided for informational purposes only. We accept no responsibility for any loss, injury or inconvenience sustained by any person resulting from information published on this site. We encourage you to verify any critical information with the relevant authorities. About Us Contact Us Privacy Links Directory ... Par Web Solutions Site best viewed in 800 x 600 resolution.

47. Cambridge Physics - Splitting The Atom francis william aston. There is scarcely a research in nuclear physics whichdoes not On 1st September 1877 francis william aston was born at Harborne, 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.

48. Encyclopedia: Francis William Aston Other descriptions of francis william aston. francis william aston (born Birmingham,September 1, 1877; died Cambridge, November 20, 1945) was a British http://www.nationmaster.com/encyclopedia/Francis-William-Aston

Supporter Benefits Signup Login Sources ... Pies Related Articles People who viewed "Francis William Aston" also viewed: Mass spectrometer Aston Frederick Soddy J.J. Thompson ... Arthur Henderson What's new? Our next offering Latest newsletter Student area Lesson plans Recent Updates Bruxism Brian Griffin Brebeuf Jesuit Preparatory School Braathens ... More Recent Articles Top Graphs Richest Most Murderous Most Taxed Most Populous ... More Stats Encyclopedia: Francis William Aston Updated 43 days 11 hours 2 minutes ago. Other descriptions of Francis William Aston 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 This article is about the city in England. ... September 1 is the 244th day of the year (245th in leap years). ... 1877 was a common year starting on Monday (see link for calendar). ... The city of Cambridge is an old English university town and the administrative centre of the county of Cambridgeshire. ... November 20 is the 324th day of the year (325th in leap years) in the Gregorian Calendar. ...

49. Nuclear Files: Library: Biographies: Francis William Aston For his accomplishments in the study of isotopes of nonradioactive elementsusing the mass spectrograph, aston was awarded the 1922 Nobel Prize in http://www.nuclearfiles.org/menu/library/biographies/bio_aston-francis.htm

Library Biographies Francis William Aston Francis William Aston Born in Birmingham, England in September 1877, Francis William Aston was fascinated by science at an early age. In 1894, Aston attended Birmingham University to study chemistry and physics. Aston won the Forster Scholarship in 1898, allowing him to conduct research that was published in 1901. He began working as an assistant at Cavendish Laboratory in Cambridge in 1909 and conducted research on positive rays. Aston remained at Cavendish until1914 when World War I required his skills at the Royal Aircraft Establishment. After World War I ended, Aston returned to his studies at Cavendish, now focusing on isotopes. In 1919, Aston made his most significant contribution to atomic science with the Printer Friendly More on the Web Alsos Digital Library for Nuclear Issues Nobel eMuseum invention of the mass spectrograph. The device was capable of separating isotopes by measuring the minute differences in their masses. Using the mass spectrograph, Aston successfully identified 212 existing isotopes. The invention also prompted him to devise his famous Whole Number Rule which states, "the mass of the oxygen isotope being defined, all the other isotopes have masses that are very nearly whole numbers." The rule became crucial to future developments in nuclear energy technology.

50. Francis William Aston -- Facts, Info, And Encyclopedia Article francis william aston (born (A city in central England; 2nd largest English cityand an important industrial and transportation center) Birmingham, http://www.absoluteastronomy.com/encyclopedia/f/fr/francis_william_aston.htm

Francis William Aston [Categories: University of Birmingham alumni, Nobel Prize in Chemistry winners, 1945 deaths, 1877 births] Francis William Aston (born (A city in central England; 2nd largest English city and an important industrial and transportation center) Birmingham , September 1 1877; died (A city in eastern England on the River Cam; site of Cambridge University) Cambridge , November 20 1945) was a British (A scientist trained in physics) physicist who won the 1922 (Click link for more info and facts about Nobel Prize in Chemistry) Nobel Prize in Chemistry for the invention of the (Spectroscope for obtaining a mass spectrum by deflecting ions into a thin slit and measuring the ion current with an electrometer) mass spectrometer In 1903 he won a scholarship to the (Click link for more info and facts about University of Birmingham) 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 1909 he moved to the (Click link for more info and facts about Cavendish Laboratory) Cavendish Laboratory in (A city in eastern England on the River Cam; site of Cambridge University)

51. Francis William Aston (1877-1945) English Chemist And Physicist francis william aston (18771945) aston returned to Cambridge after Word WarI and constructed a new type of mass spectrograph and discovered the 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.

52. Archives Hub: Papers And Correspondence Of Francis William Aston, 1877-1945 Name of Creator francis william aston 18771945 francis william aston wasborn at Harborne, near Birmingham on 1 September 1877. http://www.archiveshub.ac.uk/news/0412aston.html

Quick Search Advanced Search Help Home Papers and correspondence of Francis William Aston, 1877-1945 Reference and contact details: GB 0012 CUL F.W. Aston Title : Papers and correspondence of Francis William Aston, 1877-1945 Dates of creation Held at : University of Cambridge Extent : 1 box Name of Creator : Francis William Aston 1877-1945 Level of Description : fonds Language of Material : eng Administrative/Biographical History Francis William Aston was born at Harborne, near Birmingham on 1 September 1877. He was educated at Malvern College and Mason College (which later became the University of Birmingham) where he studied chemistry under P.F. Frankland and W.A. Tilden and Physics under J.H. Poynting. Awarded the Forster scholarship he studied optical rotation with Frankland, 1898-1900. Aston then left academic life for three years to work for a firm of brewers. However, he continued to research privately, particularly with discharge tubes. This work attracted the attention of Poynting and in 1903 Aston returned to Birmingham to continue his research in Poynting's department. In 1920 Aston was elected to the Fellowship of Trinity College Cambridge. He was elected FRS in 1921 (Hughes Medal 1922; Bakerian Lecture 1927), and in 1922 he was awarded the Nobel Prize for chemistry 'for his discovery, by means of his mass spectrograph, of isotopes, in a large number of non-radioactive elements, and for his enunciation of the whole number rule'.

53. Francis William Aston Translate this page Pagina do Professor Carlos Fernandes resumos de biografias de personalidades dahistoria da humanidade premios nobel, cientistas, engenheiros, escritores, http://www.sobiografias.hpg.ig.com.br/FranciWi.htm

Francis William Aston experimental Trabalhou com Frankland Poynting (1903) e J.J Thomson e faleceu em Cambridge, Cambridgeshire a obra marcante: Mass spectra and Isotopes Figura copiada do site LES GRANDS CHIMISTES: http://www.chm.ulaval.ca/grandschim/

54. Francis William Aston Quotes 6 quotes and quotations by francis william aston. francis william aston Thecosmical importance of this conclusion is profound and the possibilities it http://www.brainyquote.com/quotes/authors/f/francis_william_aston.html

Atlas Dictionary Encyclopedia Geography ... Add the "Quote of the Day" to Your Site or Blog - it's Easy! Web brainyquote.com Francis William Aston Quotes It has long been known that the chemical atomic weight of hydrogen was greater than one-quarter of that of helium, but so long as fractional weights were general there was no particular need to explain this fact, nor could any definite conclusions be drawn from it. Francis William Aston The cosmical importance of this conclusion is profound and the possibilities it opens for the future very remarkable, greater in fact than any suggested before by science in the whole history of the human race. Francis William Aston The loss of mass when a single helium nucleus is formed from free protons and electrons amounts in energy to that acquired by a charge e falling through a potential of nearly thirty million volts. If instead of considering single atoms we deal with quantities of matter in ordinary experience, the figures for the energy become prodigious. Francis William Aston The results obtained by means of the mass spectrograph remove all doubt on this point, and no matter whether the explanation is to be ascribed to packing or not, we may consider it absolutely certain that if hydrogen is transformed into helium a certain quantity of mass must be annihilated in the process. Francis William Aston The whole of the hydrogen on the earth might be transformed at once and the success of the experiment published at large to the universe as a new star.

55. Francis William Aston Quotes francis william aston The loss of mass when a single helium nucleus is formedfrom free protons and electrons amounts in energy to that acquired by a charge http://www.brainyquote.com/quotes/quotes/f/franciswil226838.html

Atlas Dictionary Encyclopedia Geography ... Add the "Quote of the Day" to Your Site or Blog - it's Easy! Web brainyquote.com Francis William Aston Quotes The loss of mass when a single helium nucleus is formed from free protons and electrons amounts in energy to that acquired by a charge e falling through a potential of nearly thirty million volts. If instead of considering single atoms we deal with quantities of matter in ordinary experience, the figures for the energy become prodigious. Francis William Aston Amazon: Francis William Aston on Amazon More Francis William Aston Quotations: It has long been known... The cosmical importance of... The loss of mass when... The results obtained by means... ... We know from Einstein's Theory... Quote Keywords: Acquired Amounts Atoms Become ... Through Dictionary Links: A Acquired And Become ... With Encyclopedia Links: A Charge Deal E ... RSS Feeds About Us Inquire Privacy Terms

56. Aston Infosheet francis william aston 1922 Nobel Laureate in Chemistry. francis william aston,British physicist who won the Nobel Prize for Chemistry in 1922 for his http://data.directory-mania.com/aston-sheet.html

Francis William Aston 1922 Nobel Laureate in Chemistry 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 atoms or molecular fragments of different mass and measures those masses with remarkable accuracy. Aston used the mass spectrograph to discover a large number of nuclides, or nuclear species that differ in mass. The mass spectrograph is widely used in geology, chemistry, biology, and nuclear physics. Aston was trained as a chemist, but, upon the rebirth of physics following the discovery of X rays in 1895 and of radioactivity in 1896, he began in 1903 to study the creation of X rays by the flow of current through a gas-filled tube. In 1910 he became an assistant to Sir J.J. Thomson at Cambridge, who was investigating positively charged rays emanating from gaseous discharges. During Aston's assistantship Thomson obtained, from experiments with neon, the first evidence for isotopes (atoms of the same element that differ in mass) among the stable (nonradioactive) elements. Selected works After World War I, Aston constructed a new type of positive-ray apparatus, which he named a mass spectrograph. It showed that not only neon but also many other elements are mixtures of isotopes. Aston's achievement is illustrated by the fact that he discovered 212 of the 287 naturally occurring nuclides.

57. Scientific Identity: Portraits From The Dibner Library Of The History Of Science Scientist, aston, francis william (1877 1945). Discipline(s), Chemistry ;Physics Portrait of francis william aston ~ Enlarge Image ~ http://www.sil.si.edu/digitalcollections/hst/scientific-identity/CF/by_name_disp

58. Francis William Aston - Nobelpreis Für Chemie http://www.nobelpreis.org/chemie/aston.html

vor suchen Home Chemie ... Wirtschaft Francis William Aston * 1. 9. 1877, Harborne bei Birmingham (England) "Für seine Entdeckung einer großen Zahl von Isotopen in mehreren nicht radioaktiven Elementen mit Hilfe seines Massenspektrographen sowie für seine Entdeckung des sogenannten Gesetzes der Ganzzahligkeit" diesen Artikel bearbeiten Webmaster Services

59. I-mass.com : International Mass Spectrometry Web Resource francis william aston was born in September 1877 in Birmingham, England, thethird of seven children. He was educated at Harborne Vicarage School and http://i-mass.com/aston.html

o i-mass guides : Index Classic Articles Definitions History ... Tutorials Past Features Carbon Dating of Cave Art Mass Spectrometry dates prehistoric cave paintings in southern France... On the Nose - MS shows mice prefer to mate with partners that express different MHC genes. Special Delivery - A mass spectrometer is delivered to the international space station... Molecular Hitchhiking on a Comet - Mass spectrometry shows molecules can survive an impact with Earth... Mass Spectrometry Unearths Mexico's Maize - Accelerator MS provides evidence of early agriculture in Mexico... Mass of the Universe -Scientists may finally have a reliable estimate of the mass of the universe...

60. Francis William Aston - Anagrams francis william aston anagrams. Rearranging the letters of francis william aston Find more anagrams of francis william aston (or any other text)! http://www.anagramgenius.com/archive/francis-william-aston.html

Archive The definitive site for fun anagrams! Francis William Aston anagrams Rearranging the letters of Francis William Aston (Chemist, invented mass spectrograph, 1922 Nobel) gives: Atoms' financial swirl. (by Mike Mesterton-Gibbons by hand) (pending approval) Download FREE anagram-generating software for your Windows computer Webmasters: make money from your website! Instructions for linking to this page! Learn about the Anagram Genius software (Windows/MacOS) Search the Archive Add YOUR anagrams to the Archive! League table of top contributors Find anagram aliases of francis william aston (or any other text)! Find gold service anagrams of francis william aston (or any other text)! Anagram Genius Archive Main Index Anagram Genius Archive United Kingdom Index www.anagramgenius.com home page Search the anagram archive (e.g. osama) Subject Author Anagram See this page for more relating to francis william aston francis william aston - anagrams page and William Tunstall-Pedoe

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