21. Powell, Cecil Frank | Powell, Cecil Frank Information | HighBeam Research - FREE Powell, Cecil Frank Research Powell, Cecil Frank articles at HighBeam.com. Find information, facts and related newspaper, magazine and journal articles in our online encyclopedia. http://www.highbeam.com/doc/1O47-PowellCecilFrank.html

22. Powell, Cecil Frank --  Kids Encyclopedia | Online Encyclopedia | Kids Online Di Powell, Cecil Frank (190369), British physicist, born in Tonbridge, Kent; professor, Bristol University 192869; development of photographic method of studying nuclear http://kids.britannica.com/comptons/article-9333648/Powell-Cecil-Frank

23. Powell, Cecil Frank Powell: Information From Answers.com Powell , Cecil Frank Powell English physicist who discovered the pion (the first known meson) which is a subatomic particle involved in holding the http://www.answers.com/topic/powell-cecil-frank-powell

24. Powell, Cecil Frank Powell, Cecil Frank (b. Dec. 5, 1903, Tonbridge, Kent, Eng.d. Aug. 9, 1969, near Milan, Italy), British physicist and winner of the Nobel Prize for Physics in 1950 for his http://www.uv.es/EBRIT/micro/micro_478_82.html

Britannica CD Index Articles Dictionary Help Powell, Cecil Frank (b . Dec. 5, 1903, Tonbridge, Kent, Eng.d. Aug. 9, 1969, near Milan, Italy), British physicist and winner of the Nobel Prize for Physics in 1950 for his development of the photographic method of studying nuclear processes and for the resulting discovery of the pion (pi-meson), a heavy subatomic particle. The pion proved to be the hypothetical particle proposed in 1935 by Yukawa Hideki of Japan in his theory of nuclear physics. In 1928 Powell was appointed research assistant at the Henry Herbert Wills Physical Laboratory at the University of Bristol. He became professor of physics at Bristol in 1948 and director of the Wills Laboratory in 1964. Between 1939 and 1945 he developed the necessary techniques for using sensitive photographic emulsions to record the paths of cosmic rays. In plates exposed at the top of high mountains or sent up in high-altitude balloons, cosmic-ray interactions were recorded, and, in 1947, the data revealed the existence of the pion ( Related Propaedia Topics: Instruments for recording phenomena: cameras

25. AccessScience | Biography | Powell, Cecil Frank About AccessScience. AccessScience is a subscriptionbased website that features continually updated scientific and http://www.accessscience.com/content.aspx?id=M0090891

26. Powell, Cecil (1903-1969) -- From Eric Weisstein's World Of Scientific Biography English physicist who improved on Charles Wilson's cloud chamber, which was somewhat cumbersome, by having particles to strike a photographic emulsion. Using his detector on top http://scienceworld.wolfram.com/biography/Powell.html

Branch of Science Physicists Nationality English ... Physics Prize Powell, Cecil (1903-1969) English physicist who improved on Charles Wilson's cloud chamber which was somewhat cumbersome, by having particles to strike a photographic emulsion. Using his detector on top of a mountain, he discovered the pion in 1947, which had the properties of the particle predicted by Yukawa . Powell received the 1950 Nobel Prize in physics. Wilson (Charles) Yukawa

27. Cecil Frank Powell (British Physicist) -- Britannica Online Encyclopedia Facts about Powell, Cecil Frank, as discussed in Britannica Compton's Encyclopedia Powell, Cecil Frank When did Cecil Frank Powell die? Where did Cecil Frank Powell die? http://www.britannica.com/EBchecked/topic/473233/Cecil-Frank-Powell

document.write(''); Search Site: Advanced Search With all of these words With the exact phrase With any of these words Without these words Home SHOP BROWSE BLOG ... HELP Username: Password: Remember me Forgot your password? Help Email " is the e-mail address you used when you registered. Password " is case sensitive. If you need additional assistance, please contact customer support Enter the e-mail address you used when enrolling for Britannica Premium Service and we will e-mail your password to you. Cecil-Frank-Powell My Britannica CREATE MY Cecil Frank ... NEW ARTICLE ... SAVE Cecil Frank Powell Table of Contents: Cecil Frank Powell Article Article Related Articles Related Articles Supplemental Information Supplemental Information - Spotlights Spotlights External Web sites External Web sites Citations Article Related Articles Supplemental Information Spotlights ... Citations ARTICLE from the Cecil Frank Powell Nobel Prize for Physics in 1950 for his development of the photographic method of studying nuclear processes and for the resulting discovery of the pion (pi-meson), a heavy

28. Powell, Cecil Frank English physicist who was awarded the Nobel Prize for Physics in 1950 for his study of the charged subatomic particles in cosmic radiation by using photographic emulsions http://encyclopedia.farlex.com/Cecil Frank Powell

29. Cecil Frank Powell Winner Of The 1950 Nobel Prize In Physics About Powell, Cecil Frank (submitted by Barbara) Cecil Frank Powell Biography from Encyclopedia Britannica (submitted by www.britannica.com) Cecil Frank PowellBiography (submitted by http://almaz.com/nobel/physics/1950a.html

C ECIL F RANK P OWELL 1950 Nobel Laureate in Physics for his development of the photographic method of studying nuclear processes and his discoveries regarding mesons made with this method. Background Residence: Great Britain Affiliation: Bristol University Featured Internet Links Search WWW Search The Nobel Prize Internet Archive Links added by Nobel Internet Archive visitors Cecil Frank Powell - Biography (submitted by Chinnappan Baskar Nobel population 1901-50: anatomy of a scientific elite (submitted by Chinnappan Baskar Powell, Cecil (1903-1969) (submitted by Davis) About Powell, Cecil Frank (submitted by Barbara) Cecil Frank Powell Biography from Encyclopedia Britannica (submitted by www.britannica.com) Cecil Frank Powell-Biography (submitted by Nill) Back to The Nobel Prize Internet Archive Literature Peace Chemistry ... Medicine We always welcome your feedback and comments

30. Cecil Frank Powell - Wikipedia, The Free Encyclopedia Powell, Cecil Frank ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH 5 December 1903 PLACE OF BIRTH Tonbridge, Kent, England DATE OF DEATH 9 August 1969 http://en.wikipedia.org/wiki/Cecil_Frank_Powell

Cecil Frank Powell From Wikipedia, the free encyclopedia Jump to: navigation search Cecil Powell Born Cecil Frank Powell 5 December 1903 Tonbridge Kent England Died Valsassina Italy Nationality British Fields Physics Institutions University of Cambridge University of Bristol Alma mater University of Cambridge ... Photographic method Discovery of the pion Notable awards Nobel Prize in Physics Cecil Frank Powell (5 December 1903 – 9 August 1969) was a British physicist , and Nobel Prize in Physics laureate for his development of the photographic method of studying nuclear processes and for the resulting discovery of the pion (pi-meson), a heavy subatomic particle. edit Life and career Powell was born in Tonbridge , Kent, England, the son of a local gunsmith, and educated at a local elementary school before gaining a scholarship to the Judd School , Tonbridge, which now has one of its four houses named after Powell (the house colour is green), and awards the Powell Physics and Mathematics Prize to an upper sixth form student every year in his honour. citation needed Following this he attended Sidney Sussex College , Cambridge, graduating in 1925 in the natural sciences.

31. Cecil Frank Powell Definition Of Cecil Frank Powell In The Free Online Encyclope Powell, Cecil Frank . Born Dec. 5, 1903, in Tonbridge, Kent; died Aug. 9, 1969, in Milan, Italy. English physicist. Member of the London Royal Society (1949). http://encyclopedia2.thefreedictionary.com/Cecil Frank Powell

32. HowStuffWorks "Powell, Cecil Frank" Cecil Frank Powell was a British physicist who won the 1950 Nobel Prize in physics for developing a simple technique to photograph the action of highspeed subatomic particles http://science.howstuffworks.com/dictionary/famous-scientists/physicists/cecil-f

HSW.sm.loadPageInfo(530244); OAS_AD('TopBanner'); HowStuffWorks Search HowStuffWorks and the web Video Podcasts Blogs Quizzes Games RSS Adventure Animals Auto Culture ... Physicists Cecil Frank Powell Print Cite Feedback E-mail This ... Recommend Cite This! Close Please copy/paste the following text to properly cite this HowStuffWorks article: Powell, Cecil Frank (1903-1969) was a British physicist who won the 1950 Nobel Prize in physics for developing a simple technique to photograph the action of high-speed subatomic particles and for his discoveries made with the method. Powell was born on Dec. 5, 1903, in Tonbridge, England. His parents were Elizabeth Caroline (Bisacre) Powell, a schoolteacher's daughter, and Frank Powell, a gunsmith. Powell became interested in physics as a boy and won scholarships to Cambridge University, where he graduated with honors in natural science in 1925. Powell remained at Cambridge for graduate studies under British physicists Charles Thomson Rees Wilson and Ernest Rutherford. Powell used Wilson's cloud chamber in his first major research project, adding to an understanding of how gases condense in the chamber, a device that made the paths of electrically charged subatomic particles visible. This work earned Powell a Ph.D. degree in 1927. The next year, Powell began teaching at the University of Bristol, where he remained until 1969. Powell became interested in the use of photographic plates to detect the tracks of electrically charged particles. He arranged for two photographic firms to develop special film coatings, and in 1946 he used the new film to study cosmic radiation. In 1947, Powell and his colleagues detected the first known meson when they discovered a pion in a shower of cosmic rays. A meson is a subatomic particle. There are many types of mesons. The pion or pi-meson is the lightest. It has a mass equal to 15 percent of the mass of a proton. The heaviest meson, called an upsilon particle, is about 10 times as heavy as a proton. Powell also discovered the k-meson (also called kaon), and his technique came to be widely used by physicists.

33. Powell, Cecil Frank (Br. Phys.) Powell, Cecil Frank (Br. phys.) association with Lattes ; contribution to atomic structure research http://www.uv.es/EBRIT/index/index_po_wel_2.html

Britannica CD Index Articles Dictionary Help Powell, Cecil Frank (Br. phys.) association with Lattes ... contribution to atomic structure research

34. The Nobel Prize In Physics 1950 Nobelprize.org, The Official Web Site of the Nobel Prize http://nobelprize.org/nobel_prizes/physics/laureates/1950/index.html

Home FAQ Press Contact Us ... Nobel Prize in Physics The Nobel Prize in Physics 1950 About the Nobel Prizes Facts and Lists Nobel Prize in Physics All Nobel Prizes in Physics ... Nobel Prize Award Ceremonies Sort and list Nobel Prizes and Nobel Laureates Create a List All Nobel Prizes Nobel Prize Awarded Organizations Women Nobel Laureates Nobel Laureates and Universities Prize category: Physics Chemistry Medicine Literature Peace Economics The Nobel Prize in Physics 1950 Cecil Powell The Nobel Prize in Physics 1950 Summary Presentation Speech Nobel Prize Award Ceremony ... Banquet Speech Cecil Frank Powell The Nobel Prize in Physics 1950 was awarded to Cecil Powell "for his development of the photographic method of studying nuclear processes and his discoveries regarding mesons made with this method" TO CITE THIS PAGE: MLA style: "The Nobel Prize in Physics 1950". Nobelprize.org. 1 Nov 2010 http://nobelprize.org/nobel_prizes/physics/laureates/1950/index.html About Nobelprize.org Technical Support Home FAQ ... Contact Us

35. POWELL (Cecil Frank) : Bilgi POWELL (Cecil Frank) POWELL (Cecil Frank), ingiliz fizik isi (Tonbridge, Kent 1903 – Alpe Guimello, Valsassina 1969). Cambridge niversitesinde okudu. 1928′de Bristol http://www.vik2.com/powell-cecil-frank/

36. Cecil Powell Charles Frank, ‘ Powell, Cecil Frank (1903–1969) ’, rev. first published 2004 , 1597 words, with portrait illustration http://www.oxforddnb.com/index/101035588/

@import "../../../css/home.css"; @import url("../../../css/identity.css"); Oxford DNB Home About the Biography Index Previous Next Login to view full text User name Password Library card login Library card number Oxford Biography Index entry Cecil Powell Powell, Cecil Frank physicist Oxford Biography Index Number 101035588 [ what is this? http://www.oxforddnb.com/index/101035588/Cecil-Powell Primary authority: Oxford DNB Full text available Oxford Dictionary of National Biography Powell, Cecil Frank http://dx.doi.org/10.1093/ref:odnb/35588 [Oxford DNB subscription required; no subscription? Who Was Who http://www.ukwhoswho.com/view/article/oupww/whowaswho/U52636 [WWW subscription required; no subscription? © Oxford University Press 2004-10

37. Powell, (John) Enoch - Definition Of Powell, (John) Enoch By The Free Online Dic (Biographies / Powell, Cecil Frank (19031969) M, British, SCIENCE physicist) Cecil Frank. 1903-69, British physicist, who was awarded the Nobel prize for physics in 1950 for his http://www.thefreedictionary.com/Powell, (John) Enoch

38. What Does Powell Mean? (noun) Powell, Cecil Frank Powell English physicist who discovered the pion (the first known meson) which is a subatomic particle involved in holding the nucleus together (19031969) http://www.definitions.net/definition/Powell

39. Powell, Cecil Frank - Personenlexikon POWELL (Cecil Frank) 1 - 2 POWELL (David) - 1 http://www.personenlexikon.net/d/powell-cecil-frank/powell-cecil-frank.htm

Startseite Personenlexikon Thematische Gliederung Gruppen Kategorien ... Z Powell, Cecil Frank englischer Physiker, geboren 5.12.1903 Tonbridge (Kent), verstorben 9.8.1969 bei Belluno; ab 1948 Professor in Bristol; verdient um die Weiterentwicklung der Nebelkammertechnik (Untersuchung der Ionenbeweglichkeit in Gasen) und die Anwendung photographischer Schichten (Kernspurplatten) zum Nachweis von Elementarteilchen und Kernreaktionen; wies 1947 das von H. i Yukawa 1935 postulierte Pi- Meson (Pion) und 1949 die Art seines Zerfalls in der kosmischen Strahlung nach; entdeckte auch das Antipion und 1949 ebenfalls in der kosmischen Strahlung das K+-Meson und klärte die Zerfallsarten der K-Mesonen (Kaonen) auf; auch Arbeiten zur künstlichen Erzeugung von Pi-Mesonen und geladenen K-Mesonen; erhielt 1950 den Nobelpreis für Physik. Diese Seite als Bookmark speichern : addthis_url = location.href; addthis_title = document.title; addthis_pub = 'woorgle1492'; Poulsen, Valdemar Poynting, John Henry Weitere Begriffe : Credé, Karl Siegmund Franz

40. Powell - Definition Of Powell At YourDictionary.com Powell, Cecil Frank 19031969. British physicist. He won a 1950 Nobel Prize for discovering methods of http://www.yourdictionary.com/powell

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