21. Physics: Page 1. Index To Biographical Entries. The Columbia Encyclopedia, Sixth lenard, philipp eduard anton Lindemann, Frederick Alexander Lodge, Sir OliverJoseph Lorentz, Hendrik Antoon Mach, Ernst http://www.bartleby.com/65/cat/bio/physicsbio1.html

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22. Philipp Eduard Anton Lenard lenard, philipp eduard anton (The Columbia Encyclopedia, Sixth Edition). lenard,philipp eduard anton (18621947) (The Hutchinson Dictionary of Scientific http://www.infoplease.com/ce6/people/A0829376.html

in All Infoplease Almanacs Biographies Dictionary Encyclopedia Daily Almanac for Sep 15, 2005 Skip Navigation Home Almanacs ... Word of the Day Editor's Favorites Back to School Hurricane Katrina Daylight Saving Time Hispanic Heritage Month ... Mississippi Infoplease Tools Periodic Table Conversion Tool Perpetual Calendar Year by Year ... Site Map College Center Scholarship Search College Resources Career Center Job Search Post Your Resume Continuing Ed. more . . . Search: Infoplease Info search tips Search: Biographies Bio search tips google_ad_client = 'pub-1894504138907931'; google_ad_width = 120; google_ad_height = 240; google_ad_format = '120x240_as'; google_ad_type = 'text'; google_ad_channel =''; google_color_border = ['336699','B4D0DC','DFF2FD','B0E0E6']; google_color_bg = ['FFFFFF','ECF8FF','DFF2FD','FFFFFF']; google_color_link = ['0000FF','0000CC','0000CC','000000']; google_color_url = ['008000','008000','008000','336699']; google_color_text = ['000000','6F6F6F','000000','333333']; Encyclopedia Lenard, Philipp Eduard Anton OO Pronunciation Key Lenard, Philipp Eduard Anton The Columbia Electronic Encyclopedia

23. Pozsony lenard, philipp eduard anton (18621947) (The Hutchinson Dictionary of ScientificBiography). Composers of Classical Music of Jewish Descent. http://www.infoplease.com/ce6/world/A0917710.html

in All Infoplease Almanacs Biographies Dictionary Encyclopedia Daily Almanac for Sep 15, 2005 Skip Navigation Home Almanacs ... Word of the Day Editor's Favorites Back to School Hurricane Katrina Daylight Saving Time Hispanic Heritage Month ... Mississippi Infoplease Tools Periodic Table Conversion Tool Perpetual Calendar Year by Year ... Site Map College Center Scholarship Search College Resources Career Center Job Search Post Your Resume Continuing Ed. more . . . Search: Infoplease Info search tips Search: Biographies Bio search tips google_ad_client = 'pub-1894504138907931'; google_ad_width = 120; google_ad_height = 240; google_ad_format = '120x240_as'; google_ad_type = 'text'; google_ad_channel =''; google_color_border = ['336699','B4D0DC','DFF2FD','B0E0E6']; google_color_bg = ['FFFFFF','ECF8FF','DFF2FD','FFFFFF']; google_color_link = ['0000FF','0000CC','0000CC','000000']; google_color_url = ['008000','008000','008000','336699']; google_color_text = ['000000','6F6F6F','000000','333333']; Encyclopedia Pozsony: Pozsony: see Bratislava , Slovakia. The Columbia Electronic Encyclopedia

24. Philipp Lenard - Wikipedia, The Free Encyclopedia philipp eduard anton von lenard, in Hungarian Fülöp Lénárd (born in Bratislavaon June 7, 1862 – died May 20, 1947 in Messelhausen) was a physicist and the http://en.wikipedia.org/wiki/Philipp_Eduard_Anton_von_Lenard

Philipp Lenard From Wikipedia, the free encyclopedia. (Redirected from Philipp Eduard Anton von Lenard Philipp Eduard Anton von Lenard , in Hungarian F¼l¶p L©n¡rd (born in Bratislava on June 7 – died May 20 in Messelhausen ) was a physicist and the winner of the Nobel Prize for Physics in for his research on cathode rays and the discovery of many of their properties. Philipp Lenard Contents Biography Photoelectric investigation External links Books by Philipp Lenard ... edit Biography Lenard studied under the illustrious Bunsen and Helmholtz , and obtained his doctoral degree in 1886 at the University of Heidelberg . After posts at Aachen, Bonn, Aix-la-Chappell, Breslau, Heidelberg (1896-1898), and Kiel (1898-1907), he returned finally to the University of Heidelberg in 1907 as the head of the Philipp Lenard Institute. Lenard is best remembered as an "experimentalist of genius" whose major contributions were in the study of cathode rays. Prior to his work, cathode rays were produced in primitive tubes which are partially evacuated glass tubes that have metallic electrodes in them, across which a high voltage can be placed. Sometime in the 1930's, he joined the National Socialist Party, which made him "Chief of Aryan or German Physics." He, along with Johannes Stark, became something of a fringe group. He was expelled from his post at the

25. Philipp Lenard: Information From Answers.com lenard, philipp eduard anton ( fe lip a duärt än ton la närt ) , 1862–1947, philipp eduard anton von lenard, in Hungarian Fülöp Lénárd (born in http://www.answers.com/topic/philipp-lenard

showHide_TellMeAbout2('false'); Business Entertainment Games Health ... More... On this page: Encyclopedia WordNet Wikipedia Mentioned In Or search: - The Web - Images - News - Blogs - Shopping Philipp Lenard Encyclopedia Lenard, Philipp Eduard Anton fē lÄ­p ā dÅ«¤rt ¤n tōn lā n¤rt ) , 1862–1947, German physicist, b. Bratislava. After serving as professor at the universities of Kiel (1898–1907) and Heidelberg (1896–98, 1907–31), he headed the Philipp Lenard Institute at Heidelberg. He was the first to cause cathode rays to pass from the interior of a vacuum tube through a thin metal window into the air, where they produce luminosity. For his research in this field he received the 1905 Nobel Prize in Physics. He is noted also for his work on the structure of the atom and for the discovery (1902), in connection with the photoelectric effect, that the velocity of electrons is independent of the intensity of the light that emits them. WordNet Note: click on a word meaning below to see its connections and related words. The noun Philipp Lenard has one meaning: Meaning #1 German physicist who studied cathode rays (1862-1947) Synonym: Lenard Wikipedia Philipp Lenard Philipp Eduard Anton von Lenard , in Hungarian F¼l¶p L©n¡rd (born in Bratislava on June 7 May 20 in Messelhausen ) was a physicist and the winner of the Nobel Prize for Physics in for his research on cathode rays and the discovery of many of their properties.

26. 1892: Information From Answers.com HungarianGerman physicist philipp eduard anton von lenard b. Pressburg,Austria-Hungary (Bratislava, Slovakia), June 7, 1862, d. http://www.answers.com/topic/1892

showHide_TellMeAbout2('false'); Arts Business Entertainment Games ... More... On this page: US Literature Wikipedia Mentioned In Or search: - The Web - Images - News - Blogs - Shopping In the year Astronomy Edward Barnard is the first person to discover a comet in a photograph of the sky instead of by visual sighting. See also 1881 Astronomy On September 9 Edward Barnard discovers a fifth moon of Jupiter, the first satellite of Jupiter found since Galileo. Amalthea, as the moon is named, is the last planetary satellite to be discovered without the aid of photography or space probes. Edward Barnard observes that a nova emits a cloud of gas when it brightens, the first clear evidence that novas are explosions on stars (explosions of stars are supernovas). Biology Das Keimplasma ("germ plasm") by German biologist August Weismann describes his theory that germ plasm is unchanged from generation to generation and that changes in the body do not affect it. He theorizes that germ plasm is in the chromosomes. See also 1888 Biology . (See biography Chemistry Sir William Ramsay [b. Glasgow, Scotland, October 2, 1852, d. High Wycombe, England, July 23, 1916] announces on August 13 the discovery of argon (Ar), based on a suggestion from Lord Rayleigh, who had in 1882 discovered that nitrogen from air seemed to have a different atomic weight from nitrogen prepared in other ways.

27. AllRefer.com - Philipp Eduard Anton Lenard (Physics, Biography) - Encyclopedia AllRefer.com reference and encyclopedia resource provides complete informationon philipp eduard anton lenard, Physics, Biographies. http://reference.allrefer.com/encyclopedia/L/Lenard-P.html

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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 A-Z ... Biographies Physics, Biographies Articles Aage Niels Bohr Abdus Salam Abram Joffe Albert Abraham Michelson ... Wolfgang Pauli 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.

29. Philipp Eduard Anton Lenard lenard, philipp eduard anton, fe lip a dOOärt än ton la närt Pronunciation Key.lenard, philipp eduard anton , 1862–1947, German physicist, b. Bratislava. http://www.factmonster.com/ce6/people/A0829376.html

Home U.S. People Word Wise ... Homework Center Fact Monster Favorites Hurricane Katrina Children as Authors Children Inventors The Doctor's In ... 2006 TFK Almanac Reference Desk Atlas Almanacs Dictionary Encyclopedia ... Encyclopedia Lenard, Philipp Eduard Anton OO Pronunciation Key Lenard, Philipp Eduard Anton The Columbia Electronic Encyclopedia, Page Tools: Cite Print See more Encyclopedia articles on: Physics: Biographies AD AD AD ADS Business Cards Link to Fact Monster Add Fact Monster search ... Privacy Brought to you by: Information Please

30. Photoelectric Effect philipp eduard anton lenard lenard, philipp eduard anton , 1862–1947, Germanphysicist, b. Bratislava. After serving as photon - photon , the particle http://www.factmonster.com/ce6/sci/A0838867.html

Home U.S. People Word Wise ... Homework Center Fact Monster Favorites Hurricane Katrina Children as Authors Children Inventors The Doctor's In ... 2006 TFK Almanac Reference Desk Atlas Almanacs Dictionary Encyclopedia ... Encyclopedia photoelectric effect photoelectric effect, emission of electrons by substances, especially metals, when light falls on their surfaces. The effect was discovered by H. R. Hertz in 1887. The failure of the classical theory of electromagnetic radiation to explain it helped lead to the development of the quantum theory . According to classical theory, when light, thought to be composed of waves, strikes substances, the energy of the liberated electrons ought to be proportional to the intensity of light. Experiments showed that, although the electron current produced depends upon the intensity of the light, the maximum energy of the electrons was not dependent on the intensity. Moreover, classical theory predicted that the photoelectric current should not depend on the frequency of the light and that there should be a time lag between the reception of light on the surface and the emission of the electrons. Neither of these predictions was borne out by experiment. In 1905, Albert Einstein published a theory that successfully explained the photoelectric effect. It was closely related to Planck's theory of black body radiation announced in 1900. According to Einstein's theory, the incident light is composed of discrete particles of energy, or quanta, called photons, the energy of each

31. Lenard, Philipp Eduard Anton (1862-1947), Physicien Allemand http://isimabomba.free.fr/biographies/chimistes/lenard.htm

Philipp Eduard Anton Lenard (1862-1947) P hysicien allemand. N L Ernest Rutherford O LISTE HOME

32. Molecular Expressions: Science, Optics And You - Timeline - Philipp Eduard Anton philipp eduard anton lenard (18621947). philipp lenard is somewhat of controversialfigure in the history of science. He undoubtedly made significant http://micro.magnet.fsu.edu/optics/timeline/people/lenard.html

Visit the Molecular Expressions Website Galleria Photo Gallery ... Home Philipp Eduard Anton Lenard Philipp Lenard is somewhat of controversial figure in the history of science. He undoubtedly made significant contributions to the field of physics, but suffered in reputation in his later life due to his alignment with the Nazi party and his unfounded condemnation of other scientists, especially Albert Einstein and other individuals with Jewish backgrounds. Ironically, it was Einstein’s theoretical work that helped make sense of some of Lenard’s most important experimental work on the photoelectric effect and which greatly influenced the Nobel Foundation’s decision to award the 1905 Nobel Prize for Physics to Lenard. Lenard was born in Pressburg, Hungary (now part of Slovakia) on June 7, 1862 and studied physics in a number of different cities, including Budapest, Vienna, Berlin, and Heidelberg, eventually receiving his doctorate in 1886. By 1888, Lenard began experimenting with cathode rays, but it was not until 1892, when he became an assistant to Heinrich Hertz at the University of Bonn, that his more famous investigations were undertaken. In his first year with Hertz, he developed a cathode tube containing what came to be known as a Lenard window , through which a beam of cathode rays could be obtained outside of the tube. In constructing the window, Lenard applied Hertz’s discovery that cathode rays can pass through thin pieces of metal. Lenard’s cathode tube design enabled the physicist to investigate cathode rays in a way not previously possible and he, therefore, made important discoveries concerning their characterization. For instance, utilizing a phosphorescent screen in conjunction with his cathode tube, he demonstrated that cathode rays decrease in number as the distance between the tube and screen increases and also that the ability of materials to absorb the rays depends on their density rather than their chemical makeup. These and other early findings were published by Lenard in 1894.

33. Lenard, Philipp in full philipp eduard anton lenard (b. June 7, 1862, Pressburg, Hung. nowBratislava, Slovakiad. May 20, 1947, Messelhausen, Ger. http://www.britannica.com/nobel/micro/344_27.html

Lenard, Philipp, Lenard Bavaria-Verlag in full PHILIPP EDUARD ANTON LENARD (b. June 7, 1862, Pressburg, Hung. [now Bratislava, Slovakia]d. May 20, 1947, Messelhausen, Ger.), German physicist, winner of the Nobel Prize for Physics in 1905 for his research on cathode rays and the discovery of many of their properties. His results had important implications for the development of electronics and nuclear physics. After serving as a lecturer and as an assistant to Heinrich Hertz at the University of Bonn in 1893, Lenard was professor of physics successively at the universities of Breslau (1894), Aachen (1895), Heidelberg (1896), and Kiel (1898). In 1907 he returned to the University of Heidelberg as professor of physics, where he stayed until his retirement in 1931. Applying the discovery that cathode rays pass through thin leaves of metal, Lenard constructed (1898) a cathode-ray tube with an aluminum window through which the rays could pass into the open air. Using a phosphorescent screen, he showed that the rays decreased in number as the screen was drawn away from the tube and that they ceased at a distance. The experiments also demonstrated that the power of substances to absorb the rays depends on their density and not on their chemical nature and that absorption decreases with increasing velocity of the rays. In similar experiments in 1899 he proved that cathode rays are created when light strikes metal surfaces; this phenomenon later became known as the

34. Semmelweis, Ignaz Philipp --  Encyclopædia Britannica philipp eduard anton von lenard Nobel Foundation Biography of this Hungarianbornscientist awarded the Nobel Prize in Physics, in 1905, for research on http://www.britannica.com/eb/article-9066723

Home Browse Newsletters Store ... Subscribe Already a member? Log in Content Related to this Topic This Article's Table of Contents Introduction Additional Reading Print this Table of Contents Shopping Price: USD $1495 Revised, updated, and still unrivaled. The Official Scrabble Players Dictionary (Hardcover) Price: USD $15.95 The Scrabble player's bible on sale! Save 30%. Merriam-Webster's Collegiate Dictionary Price: USD $19.95 Save big on America's best-selling dictionary. Discounted 38%! More Britannica products Semmelweis, Ignaz Philipp Page 1 of 2 Ignaz Philipp Semmelweis (German) born July 1, 1818, Buda, Hungary, Austrian Empire [now Budapest, Hung.] died August 13, 1865, Vienna, Austria Hungarian antisepsis into medical practice Educated at the universities of Pest and Vienna, Semmelweis received his doctor's degree from Vienna in 1844 and was appointed assistant at the obstetric Semmelweis, Ignaz Philipp...

35. MSN Encarta - Lenard, Philipp Eduard Anton Translate this page lenard, philipp eduard anton (1862-1947), physicien allemand. Plus de résultatspour lenard, philipp eduard anton http://fr.encarta.msn.com/encyclopedia_761583243/Lenard_Philipp_Eduard_Anton.htm

Accueil MSN Mon MSN Hotmail Rechercher ... Tout savoir sur la gamme Encarta Rechercher sur Encarta Article accessible sur abonnement MSN Encarta Premium : Acc©dez   30 000 articles encyclop©diques avec plus de 12 000 illustrations, un atlas mondial interactif, un guide du Web et une palette compl¨te de ressources et d'outils ©ducatifs. 34,99 € par an (service d’acc¨s   Internet non compris). En savoir plus. Cet article n'est accessible que si vous ªtes abonn©   MSN Encarta Premium. Dans ce cas, connectez-vous en cliquant sur le lien Aller sur MSN Encarta Premium (ci-dessus). Lenard, Philipp Eduard Anton Lenard, Philipp Eduard Anton (1862-1947), physicien allemand. M©dias Encarta vous int©resse ? Abonnez-vous d¨s maintenant et b©n©ficiez de : Plus de 30 000 articles 2 000 analyses d'oeuvre Plus de 12 000 m©dias (dont des extraits sonores, des vid©os et des m©dias interactifs) Un atlas mondial interactif Une palette compl¨te de ressources et d'outils ©ducatifs Un guide du Web Plus de r©sultats pour Lenard, Philipp Eduard Anton

36. Philipp Lenard - Enpsychlopedia philipp lenard. (Redirected from philipp eduard anton von lenard). philipp eduardanton von lenard, in Hungarian Fülöp Lénárd (born in Bratislava on June 7, http://psychcentral.com/psypsych/Philipp_Eduard_Anton_von_Lenard

home resource directory disorders quizzes ... support forums Advertisement ( Philipp Lenard (Redirected from Philipp Eduard Anton von Lenard Philipp Eduard Anton von Lenard , in Hungarian Fülöp Lénárd (born in Bratislava on June 7 May 20 in Messelhausen ) was a physicist and the winner of the Nobel Prize for Physics in for his research on cathode rays and the discovery of many of their properties. Missing image Lenard.jpg Lenard studied under the illustrious Bunsen and Helmholtz , and obtained his doctoral degree in 1886 at the University of Heidelberg . After posts at Aachen, Bonn, Aix-la-Chappell, Breslau, Heidelberg (1896-1898), and Kiel (1898-1907), he returned finally to the University of Heidelberg in 1907 as the head of the Philipp Lenard Institute. Lenard is best remembered as an "experimentalist of genius" whose major contributions were in the study of cathode rays. Prior to his work, cathode rays were produced in Crookes ' tubes (an early form of the now ubiquitous cathode ray tube , or CRT), which are partially evacuated glass tubes that have metallic electrodes in them, across which a high voltage can be placed. The rays were difficult to study because they were inside sealed glass tubes, difficult to access, and because the rays were in the presence of air molecules (fully evacuated tubes didn't produce rays). He overcame these problems by devising a method of making small metallic windows in the glass that were thick enough to be able to withstand the pressure differences, but thin enough to allow passage of the rays. Having made a window for the rays, he could pass them out into the laboratory, or, alternatively, into another chamber that was completely evacuated. He was able to conveniently detect the rays and measure their intensity by means of paper sheets coated with phosphorescent materials.

37. The Nobel Prize In Physics 1905: Philipp Eduard Anton Von Lenard Home Chemistry Peace Literature Medicine Physics Economics. philipp eduard Antonvon lenard *1862, † 1947 (Germany). For his work on cathode rays http://www.nobelpreis.org/english/physik/lenard.htm

The Nobel Prize in Physics 1905 Next Previous Search Home ... Economics Philipp Eduard Anton von Lenard (Germany) "For his work on cathode rays" External links The Nobel Prize - Philipp Eduard Anton von Lenard The Nobel Foundation powered by xago.org - The World Heritage Sites

38. Der Nobelpreis Für Physik: Philipp Eduard Anton Von Lenard philipp EduardAnton von lenard *1862, † 1947. PAGERANK SEO. http://www.nobelpreis.org/physik/lenard.htm

vor suchen Home Chemie ... Wirtschaft Philipp Eduard Anton von Lenard (Deutschland) "Für seine Arbeiten über die Kathodenstrahlen"

39. Philipp Lenard -- Facts, Info, And Encyclopedia Article philipp eduard anton von lenard, in Hungarian Fülöp Lénárd (born in (Capital andlargest city of Slovakia) Bratislava on June 7, 1862 – died May 20, http://www.absoluteastronomy.com/encyclopedia/p/ph/philipp_lenard.htm

Philipp Lenard [Categories: Hungarian physicists, Nobel Prize in Physics winners, 1947 deaths, 1862 births] Philipp Eduard Anton von Lenard , in Hungarian Fülöp Lénárd (born in (Capital and largest city of Slovakia) Bratislava (Click link for more info and facts about Nobel Prize for Physics) Nobel Prize for Physics in 1905 for his research on (A beam of electrons emitted by the cathode of an electrical discharge tube) cathode ray s and the discovery of many of their properties.Lenard studied under the illustrious (German chemist who with Kirchhoff pioneered spectrum analysis but is remembered mainly for his invention of the Bunsen burner (1811-1899)) Bunsen and (German physiologist and physicist (1821-1894)) Helmholtz , and obtained his doctoral degree in 1886 at the (Click link for more info and facts about University of Heidelberg) University of Heidelberg . After posts at Aachen, Bonn, Aix-la-Chappell, Breslau, Heidelberg (1896-1898), and Kiel (1898-1907), he returned finally to the University of Heidelberg in 1907 as the head of the Philipp Lenard Institute. Lenard is best remembered as an "experimentalist of genius" whose major contributions were in the study of cathode rays. Prior to his work, cathode rays were produced in

40. Nobel Prize In Physics -- Facts, Info, And Encyclopedia Article 1905, (Click link for more info and facts about philipp eduard anton von lenard)philipp eduard anton von lenard, for his work on (A beam of electrons http://www.absoluteastronomy.com/encyclopedia/n/no/nobel_prize_in_physics.htm

Nobel Prize in Physics [Categories: Nobel Prize in Physics winners, Nobel Prize, History of science] List of (An annual award for outstanding contributions to chemistry or physics or physiology and medicine or literature or economics or peace) Nobel Prize laureates in (The science of matter and energy and their interactions) Physics from 1901 to the present day. 174 awards have been given as of 2004. See also (Click link for more info and facts about List of Nobel laureates) List of Nobel laureates Nobel Prize in Physics, 1900s Year Name Topics (Click link for more info and facts about Wilhelm Conrad Röntgen) Wilhelm Conrad Röntgen "in recognition of the extraordinary services he has rendered by the discovery of the remarkable (Cartilaginous fishes having horizontally flattened bodies and enlarged winglike pectoral fins with gills on the underside; most swim by moving the pectoral fins) rays subsequently named after him" (Dutch physicist noted for work on electromagnetic theory (1853-1928)) Hendrik Antoon Lorentz and (Dutch physicist honored for his research on the influence of magnetism on radiation which showed that light is radiated by the motion of charged particles in an atom (1865-1943)) Pieter Zeeman "in recognition of the extraordinary service they rendered by their researches into the influence of (Attraction for iron; associated with electric currents as well as magnets; characterized by fields of force)

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