1. Biografie - Cecil Frank Powell Cecil Frank Powell. Tonbridge (Kent) 1903 Bellano 1969. Si formò alla Cambridge University, allievo di Charles Thomson Rees Wilson e Ernest Rutherford, dove conseguì il PhD nel 1927. http://galileo.imss.firenze.it/milleanni/cronologia/biografie/powell.html

Cecil Frank Powell Tonbridge (Kent) 1903 - Bellano 1969 p ), la particella associata alle forze forti che tengono insieme neutroni e protoni nei nuclei. Vinse il premio Nobel per la fisica nel 1950 "per il suo sviluppo del metodo fotografico nello studio dei processi nucleari e le sue scoperte relative ai mesoni fatte con questo metodo". Indietro Indice Biografie Inizio

2. WIEM: Powell Cecil Frank powell cecil frank (19031969), fizyk brytyjski, profesor uniwersytetu w Bristolu,czlonek Royal Society (od 1949). Zastosowal i rozwinal http://wiem.onet.pl/wiem/007601.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, Wielka Brytania Powell Cecil Frank Powell Cecil Frank (1903-1969), fizyk brytyjski, profesor uniwersytetu w  Bristolu , cz³onek Royal Society (od 1949). Zastosowa³ i rozwin±³ technikê emulsji j±drowych do badania promieniowania kosmicznego , odkry³ na³adowane mezony pion , za co otrzyma³ w 1950 Nagrodê Nobla WIEM zosta³a opracowana na podstawie Popularnej Encyklopedii Powszechnej Wydawnictwa Fogra zobacz wszystkie serwisy do góry

3. Cecil Frank Powell - Encyclopedia Article About Cecil Frank Powell. Free Access, encyclopedia article about Cecil Frank Powell. Cecil Frank Powell in Free onlineEnglish dictionary, thesaurus and encyclopedia. Cecil Frank Powell. http://encyclopedia.thefreedictionary.com/Cecil Frank Powell

Dictionaries: General Computing Medical Legal Encyclopedia Cecil Frank Powell Word: Word Starts with Ends with Definition Cecil Frank Powell December 5 December 5 is the 339th day (340th in leap years) of the year in the Gregorian calendar. There are 26 days remaining. Events 1492 - Christopher Columbus becomes the first European to set foot on the island of Hispaniola (now Haiti and the Dominican Republic). 1560 - Francis II of France dies and is succeeded by Charles IX of France. 1766 - In London, James Christie holds his first sale (he later founded Christie's, the world's oldest auction house). Click the link for more information. Centuries: 19th century - 20th century - 21st century Decades: 1850s 1860s 1870s 1880s 1890s - Years: 1898 1899 1900 1901 1902 - This year has the latest occurring solstices and equinoxes for 400 years, because the Gregorian calendar hasn't had a leap year for seven years or a century leap year since 1600. See 1696. Click the link for more information. August 9 August 9 is the 221st day of the year in the Gregorian Calendar (222nd in leap years), with 144 days remaining. Events 48 BC - Roman Civil War: Battle of Pharsalus - Julius Caesar decisively defeats Pompey at Pharsalus and Pompey flees to Egypt.

4. Cecil Frank Powell Cecil Frank Powell. Cecil Frank Powell (19031969) British physicist andwinner of the Nobel Prize for Physics in 1950 for his development http://www.nobel-winners.com/Physics/cecil_frank_powell.html

Cecil Frank Powell Cecil Frank Powell 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 ( +) as well as the process whereby it decays into two other particles, an antimuon (mu-meson) and a neutrino. Powell also discovered the antipion ( -) and, in 1949, the modes of decay of kaons (K-mesons). Main Page About Us The Nobel Foundation . External sites are not endorsed or supported by http://www.nobel-winners.com/

5. Cecil Frank Powell Cecil Frank Powell. (19031969). Powell arrived from Cambridge in 1928 and spentthe rest of his life in Bristol. He led the group working on cosmic rays. http://staff.bath.ac.uk/liscft/Powell/Powell page.htm

Cecil Frank Powell Powell arrived from Cambridge in 1928 and spent the rest of his life in Bristol. He led the group working on cosmic rays. These are very fast electrons and ionised atoms which reach the earth from outer space and which hit atoms in the atmosphere of any matter placed in their way, breaking them up. Powell developed a clear and effective way of seeing what happened by looking for ‘events’ recorded in the emulsion of a photographic plate. Examples of collision carbon nuclei captured on photographic plates. After the Second World War he sent his plates into the upper atmosphere in balloons launched from a number of locations at the university and in the surrounding area, though a number of problems including press reports of flying saucers and a balloon landing in front of an express train on the Bristol-Bath line led eventually to the removal of the site of operations to the Mediterranean area. March 1949 ‘Met’ balloon carrying NT4 plates in ‘thermos’ flash launched from bombed ‘Glosters’ H.Q on St Michael Hill (now Maternity Hospital) Balloon launch from the roof of the Fort at the University of Bristol.

6. MSN Encarta - Résultats De La Recherche - Powell Cecil Frank powell cecil frank . Page1 sur 1. Plus de résultats avec MSN pour powell cecil frank . http://fr.encarta.msn.com/Powell_Cecil_Frank.html

Accueil MSN Mon MSN Hotmail Rechercher ... S'abonner   Encarta Premium Rechercher Encarta R©sultats de la recherche pour "Powell Cecil Frank" Page sur 1 R©serv© aux abonn©s MSN Encarta Premium. Powell, Cecil Frank Encyclop©die EncartaArticle Powell, Cecil Frank (1903-1969), physicien britannique. Cecil F. Powell Encyclop©die EncartaImage Le physicien britannique Cecil F. Powell a re§u le prix Nobel de physique en 1950 pour ses remarquables travaux en physique des particules. Il a... Wright, Frank Lloyd Encyclop©die EncartaArticle Trouv© dans l'article Wright, Frank Lloyd am©ricain, cin©ma Encyclop©die EncartaArticle Trouv© dans l'article am©ricain, cin©ma piano Encyclop©die EncartaArticle Trouv© dans l'article piano m©lodrame Encyclop©die EncartaArticle Trouv© dans l'article m©lodrame Zappa, Frank Encyclop©die EncartaArticle Trouv© dans l'article Zappa, Frank DeMille, Cecil B. Encyclop©die EncartaArticle Trouv© dans l'article DeMille, Cecil B. R©serv© aux abonn©s MSN Encarta Premium. Page sur 1 Encyclop©die Quiz Produits Publicit© MSN Encarta Premium vous ouvre les portes de la connaissance sur le Web !

7. Cecil Frank Powell Definition Of Cecil Frank Powell. What Is Cecil Frank Powell? Definition of Cecil Frank Powell in the Dictionary and Thesaurus. Provides examplesfrom classic literature, search by definition of Cecil Frank Powell. http://www.thefreedictionary.com/Cecil Frank Powell

Dictionaries: General Computing Medical Legal Encyclopedia Cecil Frank Powell Word: Word Starts with Ends with Definition Noun Cecil Frank Powell - English physicist who discovered the pion (the first known meson) which is a subatomic particle involved in holding the nucleus together (1903-1969) Powell physicist - a scientist trained in physics Legend: Synonyms Related Words Antonyms Some words with "Cecil Frank Powell" in the definition: breech birth breech delivery breech presentation C. S. Forester ... Stella Previous General Dictionary Browser Next Cebuella Cebuella pygmaea Cebus ... cecum Full Dictionary Browser Cecil (comp.) Cecil (enc.) Cecil Adams (enc.) Cecil B. de Mille (enc.) Cecil B. Demille Cecil B. Demille (enc.) Cecil Beaton (enc.) Cecil Blount DeMille Cecil Calvert (enc.) Cecil Corman (enc.) Cecil County (enc.) Cecil County, Maryland (enc.) Cecil Court (enc.) Cecil D. Andrus (enc.) Cecil Day Lewis (enc.) Cecil Day-Lewis (enc.) Cecil De Mille (enc.) Cecil Edward Parkinson, Baron Parkinson (enc.) Cecil Fielder (enc.) Cecil Foster (enc.)

8. Powell C.F. powell cecil frank. Great Britain. Born on 05.12.1903. Died on 09.08.1969.Physics. Foreign Member of the Division of PhysicalMathematical http://www.icp.ac.ru/RAS_1724-1999/CD_PAH/ENG/21/2158.HTM

POWELL Cecil Frank Great Britain. Born on 05.12.1903. Died on 09.08.1969. Physics. Foreign Member of the Division of Physical-Mathematical Sciences since 20.06.1958. Awards: M.V.Lomonosov Gold Medal - for outstanding achievements in the physics of elementary particles (1967).

9. Cecil Frank Powell Toys Games. Click Here. Encyclopedia. Main Page See live article,Cecil Frank Powell. Cecil Frank Powell(19031969) was a British http://www.sciencedaily.com/encyclopedia/cecil_frank_powell

Match: sort by: relevance date Free Services Subscribe by email RSS newsfeeds PDA-friendly format loc="/images/" A A A Find Jobs In: Healthcare Engineering Accounting College Contract / Freelance Customer Service Diversity Engineering Executive Healthcare Hospitality Human Resources Information Tech International Manufacturing Nonprofit Retail All Jobs by Job Type All Jobs by Industry Relocating? Visit: Moving Resources Moving Companies Mortgage Information Mortgage Calculator Real Estate Lookup Front Page Today's Digest Week in Review Email Updates ... Outdoor Living Encyclopedia Main Page See live article Cecil Frank Powell Cecil Frank Powell ) was a British physicist, awarded 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. External links Photo Note: The original source of this article can be found on the main Wikipedia Web site. This article is licensed under the GNU Free Documentation License , which means that you can copy and modify it as long as the entire work (including additions) remains under this license.

10. ODKRYCIA W CHEMII I FIZYCE XIX I XX WIEKU 1947. powell cecil frank ( 1903 - 1969) - fizyk angielski, laureat nagrodyNobla z fizyki z 1950 r. dokonuje odkrycia czšstki mezonu pi. 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).

11. Cecil Powell - Biography cecil frank powell was born on December 5th, 1903, at Tonbridge, Kent, where hisfather, frank powell, was one of a family of gunsmiths who had long practised http://www.nobel.se/physics/laureates/1950/powell-bio.html

Cecil Frank Powell was born on December 5th, 1903, at Tonbridge, Kent, where his father, Frank Powell, was one of a family of gunsmiths who had long practised the trade in the town. His grandfather, George Bisacre, had established a private school in the nearby town of Southborough and his family ties and influences therefore tended to encourage a regard for the value both of learning and the practical arts. He attended a local elementary school and won a scholarship, at the age of eleven, to Judd School, Tonbridge. From there he won open scholarships to Sidney Sussex College, Cambridge , where he graduated with First Class Honours in the Natural Science Tripos (1924-1925). As a postgraduate student, Powell worked in the Cavendish Laboratory under C.T.R. Wilson and Lord Rutherford until 1927 when he gained his Ph.D. and moved to the University of Bristol as Research Assistant to A.M. Tyndall in the H.H. Wills Physical Laboratory. He was eventually appointed lecturer, then reader and, in 1936, he visited the West Indies as seismologist of an expedition investigating volcanic activity. He returned to Bristol in the following year and in 1948 he was established as Melville Wills Professor of Physics. Powell was Director of a European expedition for making high-altitude balloon flights in Sardinia (1952) and in the Po Valley (1954, 1955, and 1957).

12. Physics 1950 cecil frank powell. United Kingdom. Bristol University Bristol, United Kingdom.b. 1903 d. 1969. The Nobel Prize in Physics 1950 Presentation Speech http://www.nobel.se/physics/laureates/1950/

The Nobel Prize in Physics 1950 "for his development of the photographic method of studying nuclear processes and his discoveries regarding mesons made with this method" Cecil Frank Powell United Kingdom Bristol University Bristol, United Kingdom b. 1903 d. 1969 The Nobel Prize in Physics 1950 Presentation Speech Cecil Powell Biography ... Banquet Speech The 1950 Prize in: Physics Chemistry Physiology or Medicine Literature ... Peace Find a Laureate: SITE FEEDBACK CONTACT TELL A FRIEND Last modified June 24, 2003 The Official Web Site of The Nobel Foundation

13. Powell, Cecil Frank powell, cecil frank. ( b. Dec. 5, 1903, Tonbridge, Kent, Eng.d In 1928 powell was appointed research assistant at the Henry Herbert Wills Physical Laboratory at the University http://www.britannica.com/nobel/micro/478_82.html

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 ( ) as well as the process whereby it decays into two other particles, an antimuon (mu-meson) and a neutrino. Powell also discovered the antipion (

14. Cecil Frank Powell Winner Of The 1950 Nobel Prize In Physics cecil frank powell, a Nobel Prize Laureate in Physics, at the Nobel Prize Internet Archive. cecil frank powell. 1950 Nobel Laureate in Physics submitted by Davis) About powell, cecil frank( http://www.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) Back to The Nobel Prize Internet Archive Literature Peace Chemistry ... Medicine We always welcome your feedback and comments

15. Powell, Cecil Frank powell, cecil frank (19031969). English physicist who investigatedthe charged subatomic particles in cosmic radiation by using http://www.cartage.org.lb/en/themes/Biographies/MainBiographies/P/Powell/1.html

Powell, Cecil Frank English physicist who investigated the charged subatomic particles in cosmic radiation by using photographic emulsions carried in weather balloons. This led to his discovery of the pion ( meson) 1947, a particle whose existence had been predicted by Japanese physicist Hideki Yukawa 1935. Powell was awarded a Nobel prize 1950. Powell was born in Tonbridge, Kent, and studied at Cambridge, where he carried out research at the Cavendish Laboratory under Ernest Rutherford and C T R Wilson , taking photographs of particle tracks in a cloud chamber. From 1928 Powell worked at the Wills Physics Laboratory at Bristol University, becoming professor 1948. In 1938, instead of photographing the cloud-chamber tracks, Powell made the ionizing particles trace paths in the emulsions of a stack of photographic plates. The technique received a boost with the development of more sensitive emulsions during World War II and Powell used it in his discovery of the pion. He collaborated with Italian physicist Giuseppe Occhialini (1907- ), and together they published Nuclear Physics in Photographs 1947, which became a standard text on the subject.

16. By Dates 1949, Yukawa, Hideki. 1950, powell, cecil frank. 1951, Cockcroft, Sir John Douglas Walton, Ernest Thomas Sinton. 1952, Bloch, Felix - Purcell, Edward Mills. http://www.cartage.org.lb/en/themes/Sciences/Physics/aboutphysics/Nobelprize/dat

Themes Science Physics About Physics, Generalities ... Nobel Prize Laureates in Physics Year Winners Röntgen, Wilhelm Conrad Lorentz, Hendrik Antoon Zeeman, Pieter Becquerel, Antoine Henri ... Bragg, William Lawrence The prize money was allocated to the Special Fund of this prize section Barkla, Charles Glover Planck, Max Karl Ernst Ludwig Stark, Johannes Guillaume, Charles Edouard ... Raman, Sir Chandrasekhara Venkata The prize money was allocated to the Special Fund of this prize section Heisenberg, Werner Karl Schrödinger, Erwin Dirac, Paul Adrien Maurice The prize money was 1/3 allocated to the Main Fund and 2/3 to the Special Fund of this prize section Chadwick, James Hess, Victor Franz Anderson, Carl David Davisson, Clinton Joseph ... Lawrence, Ernest Orlando The prize money was 1/3 allocated to the Main Fund and 2/3 to the Special Fund of this prize section The prize money was 1/3 allocated to the Main Fund and 2/3 to the Special Fund of this prize section The prize money was 1/3 allocated to the Main Fund and 2/3 to the Special Fund of this prize section Stern, Otto

17. Cecil Frank Powell Winner Of The 1950 Nobel Prize In Physics cecil frank powell, a Nobel Prize Laureate in Physics, at the NobelPrize Internet Archive. cecil frank powell. 1950 Nobel Laureate 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) Back to The Nobel Prize Internet Archive Literature Peace Chemistry ... Medicine We always welcome your feedback and comments

18. Powell, Cecil Frank. The American Heritage® Dictionary Of The English Language: American Heritage® Dictionary. powell, Anthony. powell, Colin Luther Heritage® Dictionary of the English Language Fourth Edition. 2000. powell, cecil frank. DATES 19031969 http://www.bartleby.com/61/17/P0491700.html

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19. Powell, Cecil Frank --  Britannica Student Encyclopedia powell, cecil frank Britannica Student Encyclopedia. To cite this page MLAstyle powell, cecil frank. Britannica Student Encyclopedia. 2004. http://www.britannica.com/ebi/article?eu=358473&query=powell&ct=ebi

20. Emilio Segre Visual Archives, Physicists Photos Packard, David. Padden, frank Joseph Jr. powell, Alan. powell, Richard C. powell, cecil frank. powell, Wilson Marcy http://www.aip.org/history/esva/catalog/esva/P.html

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