1. ThinkQuest : Library : Atom. The Incredible World. FRANCIS WILLIAM ASTON. Francis William Aston lived in the years 18771945. He studied at Cambridge and was a Rutherford's student. After studies he became Thomson's assistant. he constructed a special device - a mass spectrograph. Aston researched 213 out of the total of 276 isotopes http://library.thinkquest.org/19662/low/eng/biog-aston.html

Index Physical Science Chemistry Atom. The incredible world. This site presents problems and discoveries in experimental atomic physics. Textbook-like, its contents spans 2,000 years of history, starting with Democritus, the Greek philosopher. A special section on the twentieth century provides information on x-rays, radiation, and the quantum theory. Historical background information on the scientists helps develop an overview of the achievements in this area. The site is in English and Polish. Visit Site 1998 ThinkQuest Internet Challenge Languages English Polish Students Grzegorz XIV L.O. im. Stanislawa Staszica, Warszawa, Poland Tomasz XIV L.O. im. Stanislawa Staszica, Warszawa, Poland Gabriela 49 L.O. im. Johanna Wolfganga Goethego, Warszawa, Poland Coaches Stanislaw XIV L.O. im. Stanislawa Staszica, Warszawa, Poland Konrad IL L.O. im. Johanna Wolfganga Goethego, Warszawa, Poland Miroslawa Szkola Glowna Handlowa, Warszawa, Poland Want to build a ThinkQuest site? The ThinkQuest site above is one of thousands of educational web sites built by students from around the world. Click here to learn how you can build a ThinkQuest site.

2. Aston Francis William Aston ( 18771945) 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 . 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.

3. MSN Encarta - Search Results - Aston Francis William Encarta Search results for aston francis william . Page 1 of 1. Found in the Hawaii(state) article. 7. Magazine and news articles about aston francis william *. http://encarta.msn.com/Aston_Francis_William.html

MSN Home My MSN Hotmail Shopping ... Money Web Search: logoImg('http://sc.msn.com'); Encarta Subscriber Sign In Help Home ... Upgrade to Encarta Premium Search Encarta Encarta Search results for "Aston Francis William" Page of 1 Exclusively for MSN Encarta Premium Subscribers Aston, Francis William Article—Encarta Encyclopedia Aston, Francis William (1877-1945), British physicist and Nobel laureate, born in Harborne, Birmingham, England, and educated at Malvern College,... related items mass spectrometer study of isotopes Francis William Aston Picture—Encarta Encyclopedia Picture from Encarta Encyclopedia William Francis Giauque Article—Encarta Encyclopedia Giauque, William Francis (1895-1982), American chemist and Nobel laureate, best known for discovering a method for producing temperatures approaching... William Francis Giauque Picture—Encarta Encyclopedia Picture from Encarta Encyclopedia Bourdillon, Francis William (quotation) Quotation—Encarta Encyclopedia The night has a thousand eyes, And the day but one; Yet the light of the bright world dies

4. ASTON Francis William Last updated 25.05.2001 142758. Francis William Aston byl britskýchemik a fyzik, žijící v letech 1877 1945. Je nositelem http://www.volny.cz/michal_bachman/asto.htm

Last updated: 25.05.2001 14:27:58 Francis William Aston byl britský chemik a fyzik, žijící v letech 1877 - 1945. Je nositelem Nobelovy ceny za chemii z roku 1922 za objevy mnoha izotopù a pøístroje k jejich identifikaci - hmotnostního spektrografu (1919). Optimální rozlišení - 1024x768, minimálnì 800x600. © Michal Bachman, 200 Veškeré ohlasy prosím sem

5. O Webu ARRHENIUS Svante August, ARRHENIUS Svante August ENGLISH. aston francis william.AVOGADRO Amedeo, AVOGADRO Amedeo - ENGLISH. BAEYER Adolf Johann Friedrich von. http://www.volny.cz/michal_bachman/o_webu.htm

Last updated: 14.08.2002 21:50:00 Vznik webu Web o Nobelovi Zmìna Souèasnost ... Struktura webu Zárodek celého webu vznikl na konci školního roku 1998/99, kdy jsem byl žákem 9. tøídy základní školy. Pøipravil jsem si tehdy na výzvu našeho chemikáøe referát o Alfredu Nobelovi (v angliètinì). Ten jsem pak v prváku na gymplu umístil na web a zaèal pøidávat další èlánky. Asi po roce pøibyl druhý web, speciálnì o Alfredu Nobelovi, kam jsem zaèal umisovat pøeklady èlánkù ze švédských stránek Nobelovy nadace. Po necelých dvou letech jsem se rozhodl zmìnit design i architekturu stránek. Není to proto, že by mi pøipadal tento design hezèí, nýbrž proto, že pøedešlé stránky byly tvoøeny v programu Microsoft Publisher 2000, což bylo vzhledem k èasové nároènosti a nízké "inteligenci" tohoto programu pomìrnì nevyhovující. Pøešel jsem proto na (podle mého názoru) mnohem kvalitnìjší Front Page 2000 (i když má spoooustu odpùrcù), který poskytuje již nìkolik pøedem nadefinovaných grafických návrhù, mezi které patøí i tento. Takže pokud se nìkomu nový vzhled stránky nelíbí, musí se s tím smíøit, protože stránka má èistì informaèní, nikoliv umìlecký charakter. Výhodou je naopak daleko snadnìjší možnost aktualizací a jednodušší ovládání, což se doufám brzy projeví na obsahové kvalitì webu. Další výhodou je kompletní hypertextové propojení se stránkami o Nobelovi. Weby tak byly v podstatì slouèeny v jeden. Od 9. srpna 2002 do l

6. WIEM: Aston Francis William edycji WIEM 2004. Multimedia, Ilustracje, Zdjecia aston francis william.Opis aston francis william. WIEM zostala opracowana na http://wiem.onet.pl/wiem/011ac0.html

WIEM 2004 - zobacz now± edycjê encyklopedii! Kup abonament i encyklopediê na CD-ROM, sprawd¼ ofertê cenow±! Oferta specjalna abonamentów dla szkó³ i instytucji! Uwaga! Przedstawione poni¿ej has³o pochodzi z archiwalnej edycji WIEM 2001! Prace redakcyjne nad edycj± 2001 zosta³y zakoñczone. Zapraszamy do korzystania z nowej, codziennie aktualizowanej i wzbogacanej w nowe tre¶ci edycji WIEM 2004 Multimedia, Ilustracje, Zdjêcia Aston Francis William Opis: Aston Francis William. WIEM zosta³a opracowana na podstawie Popularnej Encyklopedii Powszechnej Wydawnictwa Fogra zobacz wszystkie serwisy do góry

7. WIEM: Aston Francis William aston francis william (18771945), fizyk i chemik brytyjski. Fizyka, Chemia,Wielka Brytania aston francis william (1877-1945). aston francis william. http://wiem.onet.pl/wiem/0108c2.html

WIEM 2004 - zobacz now± edycjê encyklopedii! Kup abonament i encyklopediê na CD-ROM, sprawd¼ ofertê cenow±! Oferta specjalna abonamentów dla szkó³ i instytucji! Uwaga! Przedstawione poni¿ej has³o pochodzi z archiwalnej edycji WIEM 2001! Prace redakcyjne nad edycj± 2001 zosta³y zakoñczone. Zapraszamy do korzystania z nowej, codziennie aktualizowanej i wzbogacanej w nowe tre¶ci edycji WIEM 2004 Fizyka, Chemia, Wielka Brytania Aston Francis William Aston Francis William Aston Francis William (1877-1945), fizyk i chemik brytyjski. Od 1920 profesor uniwersytetu w Cambridge, od 1921 cz³onek Royal Society. Uczeñ J.J. Thomsona, z którym wspólnie wykaza³ 1913 istnienie 2 trwa³ych izotopów neonu. 1919 zbudowa³ pierwszy spektrograf masowy , za pomoc± którego odkry³ wiêkszo¶æ naturalnych trwa³ych izotopów (ok. 212). Zaproponowa³ te¿ tzw. fizyczn± skalê mas atomowych, opart± wy³±cznie na izotopie tlenu O, dla którego przyjêto masê równ± dok³adnie 16 (poprzednio jednostk± masy atomowej by³a 1/16 masy atomu tlenu bez uwzglêdnienia sk³adu izotopowego tlenu). 1922 laureat Nagrody Nobla w dziedzinie chemii. G³. prace:

8. ASTON Francis William Last updated 19.02.2004 165820. Francis William Aston byl britskýchemik a fyzik, žijící v letech 1877 1945. Je nositelem http://nobelsoftware.com/vedci/asto.htm

Last updated: 19.02.2004 16:58:20 Francis William Aston byl britský chemik a fyzik, žijící v letech 1877 - 1945. Je nositelem Nobelovy ceny za chemii z roku 1922 za objevy mnoha izotopù a pøístroje k jejich identifikaci - hmotnostního spektrografu (1919). Optimální rozlišení - 1024x768, minimálnì 800x600. © Michal Bachman, 200 Veškeré ohlasy prosím sem

9. Francis William Aston - Wikipedia Translate this page Francis William Aston. aus Wikipedia, der freien Enzyklopädie. FrancisWilliam Aston (* 1. September 1877 in Harborne, † 20. http://de.wikipedia.org/wiki/Francis_William_Aston

Hauptseite Letzte Änderungen Seite bearbeiten Versionen ... Druckversion Nicht angemeldet Anmelden Hilfe Francis William Aston aus Wikipedia, der freien Enzyklopädie Francis William Aston 1. September in Harborne 20. November in Cambridge ) war ein englischer Physiker , der als erster die Massenspektroskopie erfolgreich einsetzte. erhielt er den Nobelpreis für Chemie Seite bearbeiten Diskussion Versionen ... Letzte Änderungen Diese Seite wurde zuletzt geändert um 19:45, 5. Mär 2004. Der Artikel steht unter der GNU Freien Dokumentationslizenz , siehe auch Lizenzbestimmungen Hauptseite Letzte Änderungen Zufälliger Artikel ... Spenden an Wikimedia

10. Francis William Aston Francis William Aston. Francis William Aston (18771956). Britishphysicist who won the Nobel Prize for Chemistry in 1922 for his http://www.nobel-winners.com/Chemistry/francis_william_aston.html

Francis William Aston 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. 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.

11. Francis William Aston Francis William Aston (18771945). Profesor uniwersytetu w Cambridge.Prowadzil badania nad promieniami kanalikowymi; wykazal http://www.republika.pl/ewamalecka/uczeni/aston.htm

Francis William Aston (1877-1945) Profesor uniwersytetu w Cambridge. Prowadzi³ badania nad: promieniami kanalikowymi; wykaza³ istnienie dwóch izotopów neonu w roku 1913. W roku 1919 zbudowa³ pierwszy spektrograf masowy, a co za tym idzie zidentyfikowa³ wiêkszo¶æ izotopów trwa³ych. Nagrodê Nobla otrzyma³ roku 1922.

12. MSN Encarta - Résultats De La Recherche - Aston Francis William aston francis william . Page1 sur 1. Plus de résultats avec MSN pour aston francis william . http://fr.encarta.msn.com/Aston_Francis_William.html

Accueil MSN Mon MSN Hotmail Rechercher ... S'abonner   Encarta Premium Rechercher Encarta R©sultats de la recherche pour "Aston Francis William" Page sur 1 R©serv© aux abonn©s MSN Encarta Premium. Aston, Francis William Encyclop©die EncartaArticle Aston, Francis William (1877-1945), physicien britannique. Francis William Aston Encyclop©die EncartaImage isotopes Encyclop©die EncartaArticle Trouv© dans l'article isotopes spectrom¨tre de masse Encyclop©die EncartaArticle Trouv© dans l'article spectrom¨tre de masse Giauque, William Francis Encyclop©die EncartaArticle Giauque, William Francis (1895-1982), chimiste am©ricain, connu pour sa d©couverte d'une m©thode appliqu©e pour g©n©rer des temp©ratures approchant... William Francis Giauque Encyclop©die EncartaImage Bacon, Francis (philosophe) Encyclop©die EncartaArticle Trouv© dans l'article Bacon, Francis (philosophe) ‰lisabeth I re Encyclop©die EncartaArticle Trouv© dans l'article ‰lisabeth I re Shakespeare, William Encyclop©die EncartaArticle Trouv© dans l'article Shakespeare, William

13. Aston Francis William Aston byl britský chemik a fyzik, žijící v letech.1877 1945. Je nositelem Nobelovy ceny za chemii z roku 1922 http://www.jergym.hiedu.cz/~canovm/osobnost/asto.htm

1877 - 1945. Je nositelem Nobel Francis William

14. ODKRYCIA W CHEMII I FIZYCE XIX I XX WIEKU 1913. aston francis william ( 1877 - 1945) wraz z Sir Josephem Johnem Thomsonem( 1856 - 1940) wykazal istnienie dwóch trwalych izotopów neonu . http://www.uni.opole.pl/chemia/inst/dydakt/chron1.html

ODKRYCIA W CHEMII I FIZYCE XIX I XX WIEKU Od 1898 roku do 1994 roku: Odkrycia cz¹stek elementarnych; Teorie chemiczne; Modele budowy atomu (Od modelu Thomsona do modelu Bohra- Sommerfelda); Kwarkowa struktura materii Ernest Rutherford ( 1871 - 1937) udowodni³, ¿e promieniowanie uranu jest promieniowaniem z³o¿onym z co najmniej dwóch ró¿nych rodzajów promieniowania. Promieniowanie ,które ³atwo ulega absorpcji Rutherford nazwa³ promieniowaniem alfa. Drugi rodzaj promieniowania o bardziej przenikliwym charakterze nazwa³ promieniowaniem beta. Charakterystykê podan¹ przez Ernesta Rutherforda w 1899 r. w pracy " Uranium Radiation and the Electrical Condution Produced by It" - Phil. Mag., 47, 114, 1899 uzupe³nili inni badacze, którzy wykazali, ¿e promienie alfa i beta s¹ z³o¿one z cz¹stek elektrycznie na³adowanych. Cz¹stki te ulegaj¹ odchyleniu w polu magnetycznym i elektrostatycznym odchyleniu, lecz w przeciwnych kierunkach. Stosunek e/m dla promieniowania beta wyznaczony przez Becquerela Henri ( 1852 - 1908) mia³ tak¹ sam¹ wartoœæ jak zmierzony przez Thomsona Josepha ( 1856 -1940) dla promieni katodowych ( elektronów).

15. System Analysis - Cross Over Research - Metaphysics - Philosophy By Jörg Lenau Translate this page Friedrich, Wundt Wilhelm, Yukawa Hideki, Achard Franz Karl, Adler Alfred, AndersonCarl David, Arkwright Sir Richard, aston francis william, Avogadro Amadeo http://www.sya.de/

A strologische C harakteranalyse A strologische C harakteranalyse ... mail Abaelard Peter, Albategnius, Albert der Große (Albertus Magnus) , Anaxagoras, Anaximander, Anaximenes, Anselm von Canterbury, Archimedes, Aristarch(os) von Samos, Aristippos, Aristoteles, Augustinus, Avenarius Richard, Averroë (arab. 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16. Francis W. Aston - Biography francis W. aston – Biography. francis william aston was born in September 1877at Harborne, Birmingham, England, the third of a family of seven children. http://www.nobel.se/chemistry/laureates/1922/aston-bio.html

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 Vicarage School and Malvern College where his interest in science was aroused. In 1894 he 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

17. Aston, Francis William aston, francis william. francis william aston. CorbisBettmann ( b. Sept. 1, 1877, Harborne, Birmingham, Eng.d. Nov. mass and measures those masses with remarkable accuracy. aston used the mass http://www.britannica.com/nobel/micro/38_30.html

Aston, Francis William Francis William Aston Corbis-Bettmann (b. Sept. 1, 1877, Harborne, Birmingham, Eng.d. Nov. 20, 1945, Cambridge, Cambridgeshire), 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 nuclide s, 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. 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.

18. Chemistry 1922 of the wholenumber rule . francis william aston. United Kingdom.University of Cambridge Cambridge, United Kingdom. b. 1877 d. 1945. http://www.nobel.se/chemistry/laureates/1922/

The Nobel Prize in Chemistry 1922 "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" Francis William Aston United Kingdom University of Cambridge Cambridge, United Kingdom b. 1877 d. 1945 The Nobel Prize in Chemistry 1922 Presentation Speech Francis W. Aston Biography ... Nobel Lecture The 1922 Prize in: Physics Chemistry Physiology or Medicine Literature ... Peace Find a Laureate: SITE FEEDBACK CONTACT TELL A FRIEND Last modified January 14, 2004 The Official Web Site of The Nobel Foundation

19. 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. http://www.nuclearfiles.org/rebios/aston.htm

20. Francis William Aston Winner Of The 1922 Nobel Prize In Chemistry francis william aston, a Nobel Prize Laureate in Chemistry, at the Nobel Prize Internet Archive. francis william aston. 1922 Nobel Laureate in Chemistry aston( submitted by Chris Shoemaker) http://www.almaz.com/nobel/chemistry/1922a.html

F RANCIS W ILLIAM A STON 1922 Nobel Laureate in 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. Background Residence: Great Britain Affiliation: Cambridge University Featured Internet Links Search WWW Search The Nobel Prize Internet Archive Links added by Nobel Internet Archive visitors essay on F. W. Aston (submitted by Chris Shoemaker Francis William Aston – Biography (submitted by Chinnappan Baskar F.W.Aston biography (submitted by Rip Dnulke Info About Francis William Aston (submitted by Thomas Francis William Aston - Photo + Biography (submitted by Thomas Francis William Aston (1877-1945) (submitted by Davis) Francis William Aston (submitted by Jackson) Back to The Nobel Prize Internet Archive Literature Peace Chemistry ... Medicine We always welcome your feedback and comments

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