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Topic: Pierre Janssen

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	Janssen (lunar crater) - Wikipedia, the free encyclopedia
		Janssen is an ancient impact crater located in the highland region near the southeastern lunar limb.
		In the south two-thirds of the Janssen crater can be discerned the remains of a large, concentric crater, the wall of which is overlaid by Fabricus.
		The rille curves from the rim of Fabricius crater to the southeast of the Janssen outer wall, extending for a distance of up to 140 kilometers.
	en.wikipedia.org /wiki/Janssen_(Lunar_crater) (263 words)

	Janssen, Pierre Jules Cesar. The Columbia Encyclopedia, Sixth Edition. 2001-05 (Site not responding. Last check: 2007-10-21)
		In 1857–58, in Peru, he worked on the determination of the magnetic equator; in the Azores (1867) he examined magnetic and topographical conditions; and in Japan (1874) and in Algeria (1882) he observed the transit of Venus.
		Janssen accompanied various solar eclipse expeditions, notably that to Guntur, India, in 1868, where he devised a new method of studying the solar prominences spectroscopically and discovered, almost simultaneously with J. Lockyer, the chemical constitution of the prominences.
		He was active in the establishment of the astrophysical observatory of Meudon in Paris and in 1876 became its director.
	www.bartleby.com /65/ja/JanssenP.html (176 words)

	Henri-Alexandre Deslandres - Wikipedia, the free encyclopedia
		In 1868, Pierre Janssen's solar observations had led him to report to the Académie des Sciences that It is no longer geometry and mechanics which dominate [in astronomy] but physics and chemistry.
		Such advice was sternly rejected by director of the Paris Observatory Urbain Le Verrier and the French government awarded Janssen a grant to establish an astrophysical observatory at Meudon on the outskirts of Paris with Janssen as the sole astronomer.
		On Janssen's death in 1907, Deslandres became director and embarked on a programme of expansion.
	en.wikipedia.org /wiki/Henri-Alexandre_Deslandres (456 words)

	Pierre Jules CÃ©sar Janssen Online Research :: Information about Pierre Jules CÃ©sar Janssen (Site not responding. Last check: 2007-10-21)
		Janssen was at first ridiculed since no element had ever been detected in Space before being found on Earth.
		Jules Janssen took this photo of the french officers' Charles Renard and Arthur Krebs La France dirigible from his Meudon (France) astrophysic observatory in 1885.
		An indispensable preliminary was the virtual elimination of oxygen-absorption in the Earth 's Earth's atmosphere, and his bold project of establishing an observatory on the top of Mont Blanc was prompted by a perception of the advantages to be gained by reducing the thickness of air through which observations have to be made.
	in-northcarolina.com /search/Pierre_Jules_Csar_Janssen.html (542 words)

	Janssen, (Pierre) Jules César (Site not responding. Last check: 2007-10-21)
		Janssen was born and educated in Paris, and built an observatory on the flat roof of his house there.
		He was made professor of physics at the Ecole Spéciale d'Architecture 1865, established an observatory on Mont Blanc in the Alps, and in 1875 became director of the new astronomical observatory at Meudon, near Paris.
		Having constructed a special spectroscope, Janssen showed that the dark bands in the solar spectrum can be resolved into rays, and, in 1864, that the origin of the phenomenon is terrestrial.
	cartage.org.lb /en/themes/Biographies/MainBiographies/J/Janssen/1.html (208 words)

	Who's Who of Victorian Cinema
		Janssen presented the photographic revolver to the Société Francaise de Photographie in 1875, and to the Académie des Sciences in April 1876, where he suggested that his apparatus might be used for the study of animal movements, especially those of birds, when materials sensitive enough to permit the very brief exposures necessary became available.
		Janssen's experiments influenced E-J. Marey's later chronophotographic work, and his camera used a modified version of the Maltese cross-type mechanism that would later be of such importance in cinematograph engineering design.
		For the latter film, Janssen and Lagrange were secreted behind the screen and spoke the dialogue of their conversation as the film was projected.
	www.victorian-cinema.net /janssen.htm (423 words)

	The Emergence of the Telescope (Site not responding. Last check: 2007-10-21)
		Janssen is the most likely worker to have first fully realized the telescope, a production of his workshop between 1604 and 1608.
		Sacharias Janssen, spectacle maker of the city of Middelburg in Zeeland, Netherlands, was probably the first to develop the method of using lenses to construct a practical and usable telescope.
		The respective claims for Hans Lipperhey, Jacob Metiús, and Sacharias Janssen as true inventors of the device are examined, along with the retrospective contributions of Janssen's son, Ambassador Willem Boreel, and witnesses of the City of Middelburg in Zeeland to the investigation of the matter circa 1655.
	pages.sbcglobal.net /ttauri/page5.html (346 words)

	Children of Pierre Janssen, Discoverer of Helium (Site not responding. Last check: 2007-10-21)
		Janssen's helium laboratory was in his home, and he used his family as subjects for many of the experiments he conducted to discover the element's properties.
		All the Janssen children had high-pitched, squeaky voices due to excessive exposure to the gas.
		Unfortunately the helium enema never caught on, and the dog himself was later lost in a windstorm during an attempt to perfect a breed of aerial watchdogs.
	www.dearauntnettie.com /museum/museum-helium.htm (198 words)

	ESA - Science - Home - 22 February (Site not responding. Last check: 2007-10-21)
		Janssen was a French astronomer who in 1868 devised a method for observing solar prominences without an eclipse.
		Using a spectroscope, he proved that the solar prominences are gaseous, and identified the chromosphere as a gaseous envelope of the Sun.
		Janssen was the first to note the granular appearance of the Sun, regularly photographed it, and published a substantial solar atlas with 6000 photographs.
	www.esa.int /esaSC/SEMZQHYEM4E_index_2.html (121 words)

	Twan Janssen (Site not responding. Last check: 2007-10-21)
		Janssen informs them that his career plans for the year in question demand that he has
		Janssen also presented letters to critics, who were warmly invited to write articles
		Janssen uses acrylic paint as a material that can be used in lots of ways,
	www.galerievangelder.com /artists/janssen1.html (2292 words)

	Helium - Simple English Wikipedia
		However, it can react with tungsten, iodine, fluorine, sulfur and phosphorus under special conditions.
		Pierre Janssen and Norman Lockyer found helium in 1868.
		They found it in the Sun before it was found on Earth.
	simple.wikipedia.org /wiki/Helium (176 words)

	or JANSEN JANSSEN CORNELIUS (sometimes JOHNSON) - LoveToKnow Article on or JANSEN JANSSEN CORNELIUS (sometimes JOHNSON) (Site not responding. Last check: 2007-10-21)
		In England he was patronized by James I. and the court, and under Charles I. he continued to paint the numerous portraits which adorn many English mansions and collections.
		Janssens pictures, chiefly portraits, are distinguished by clear coloring, delicate touch, good taste and careful finish.
		He generally painted upon panel, and often worked on a small scale, sometimes producing replicas of his larger works.
	www.1911encyclopedia.org /J/JA/JANSSEN_or_JANSEN_sometimes_JOHNSON_CORNELIUS.htm (225 words)

	Parenteel van Jo Lemkens (Site not responding. Last check: 2007-10-21)
		Catharina Janssen, born on 23-07-1830 in Opglabbeek, died on 03-11-1884, daughter of Karel Jan Janssen (V.17) and M.
		Relation to Lambert Janssen (VI.29), born on 11-03-1825 in As, died on 02-05-1908 in Opglabbeek.
		Anna Janssen (VII.98), born on 17-01-1853 in Opglabbeek, died on 13-01-1918 in Opglabbeek.
	users.skynet.be /ferson/le/le_00017.htm (1249 words)

	February 22 - Today in Science History (Site not responding. Last check: 2007-10-21)
		Pierre (-Jules-César) Janssen was a French astronomer who in 1868 devised a method for observing solar prominences without an eclipse (an idea reached independently by Englishman Joseph Norman Lockyer).
		Janssen observed the total Sun eclipse in India (1868).
		Janssen was the first to note the granular appearance of the Sun, regularly photographed it, and published a substantial solar atlas with 6000 photographs (1904).«;
	www.todayinsci.com /2/2_22.htm (1902 words)

	PIERRE JULES CESAR JANSSEN - LoveToKnow Article on PIERRE JULES CESAR JANSSEN
		PIERRE JULES CESAR JANSSEN - LoveToKnow Article on PIERRE JULES CESAR JANSSEN
		the snow that appears to cover the summit to a depth of ten metres, was built in September 1893, and Janssen, in spite of his sixty-nine years, made the ascent and spent four days taking observations.
		In 1875 he was appointed director of the new astrophysical observatory established by the French government at Meudon, and set on foot there in 1876 the remarkable series of solar photographs collected in his great Atlas de photographies solaires (1904).
	www.1911encyclopedia.org /J/JA/JANSSEN_PIERRE_JULES_CESAR.htm (329 words)

	Janssen Pharmaceutica
		The five-year contract confers on Janssen Animal Health the marketing and distribution rights in Europe for the veterinary medicines Vetoryl® and Felimazole®, which were developed by Dechra Pharmaceuticals.
		Janssen Animal Health is a division of Janssen Pharmaceutica, which in turn belongs to the Johnson and Johnson group.
		Janssen Animal Health is renowned worldwide for its antiparasitic and antifungal products and also partners with other pharmaceutical companies for the sale of their products.
	www.janssenpharmaceutica.be /news_headlines26_E.asp (452 words)

	:: Discovery Channel CA ::
		Instead, it was discovered on the sun in 1868 by French astronomer Pierre Janssen.
		The pattern detected by Janssen led him to conclude that it was coming from an as-yet unidentified element.
		Pierre Janssen's discovery of this new element on the sun led him to take the name from the Greek 'helios', which means sun.
	www.exn.ca /stories/2003/03/04/57.asp?t=dp (348 words)

	He-history (Site not responding. Last check: 2007-10-21)
		Helium was known to exist in the sun before it was known to exist on earth.
		In 1868 French astronomer Pierre-Jules-Cesar Janssen traveled to India to observe a total eclipse of the sun and make the first spectroscopic study of its chromosphere.
		Lockyer confirmed the existence of helium gas on earth with the examination of the sample sent by Ramsay.
	www.doane.edu /Dept_Pages/new_SCIENCE/CHEM/His/He.html (288 words)

	MSN Encarta - Search View - Helium
		In group 18 (or VIIIa) of the periodic table (see Periodic Law), helium is one of the noble gases.
		The French astronomer Pierre Janssen discovered helium in the spectrum of the corona of the Sun during an eclipse in 1868.
		Shortly afterward it was identified as an element and named by the British chemist Sir Edward Frankland and the British astronomer Sir Joseph Norman Lockyer.
	encarta.msn.com /text_761562418__1/Helium.html (962 words)

	Janssen, Pierre Jules César on Encyclopedia.com (Site not responding. Last check: 2007-10-21)
		In 1857-58, in Peru, he worked on the determination of the magnetic equator; in the Azores (1867) he examined magnetic and topographical conditions; and in Japan (1874) and in Algeria (1882) he observed the transit of Venus.
		Light and dark: the daguerreotype and art history.
		Pictures and Maps for: Janssen, Pierre Jules César
	www.encyclopedia.com /html/J/JanssenP1.asp (275 words)

	Pierre
		1996 Pierre Lucien Claverie, bishop of Oran, dies at 58
		1965 Pierre Cardevielle, Fren composer and conductor (L'ile Rouge), dies at 59
		1925 Pierre Boulez, born in Montbrison, France, composer and conductor, Visage Nuptial
	www.brainyhistory.com /topics/p/pierre.html (1758 words)

	Helium (Site not responding. Last check: 2007-10-21)
		Pierre replied, "I'll do my best to help." They both went
		H. Lium and Pierre Janssen had a little talk.
		Janssen pricked Lium's finger and got a drop
	eclipse.cps.k12.va.us /Schools/GATE/studentzone/webpages/helium (121 words)

	Reference.com/Encyclopedia/Milan Rastislav Stefanik
		Initially, he had no money and no command of French, but then he got a job at the famous Observatoire de Paris-Meudon, whose director, Pierre Janssen (one of the co-founders of astrophysics), saw Štefánik’s talent.
		At the end of 1907, however, Pierre Janssen died and Štefánik had to change his job.
		Since 1908, he has been charged by French authorities with astronomic and meteorological observations (mainly observations of sun eclipses) and political tasks in various countries all over the world (Algeria, Turkestan, Russia, USA, Panama, South America, Australia, Tasmania, New Zealand, Tahiti and others).
	www.reference.com /browse/wiki/Milan_Rastislav_Stefanik (1333 words)

	Welcome to the history of the Tour de France
		In the closing stages, a fierce battle erupted between Belgians Ferdinand Bracke, Herman Van Springel and Holland's Jan Janssen.
		But Janssen rode the race of his life and turned out to be the upset winner of the Tour.
		Geldermans’ bet: "Janssen will beat Van Springel and be the first Dutch to win the Tour." Last rider: Clarey (63th) at 2 h 43 min.
	www.letour.fr /HISTO/TDF/1968/us/annee.html?RaceYear=1903&x=39&y=12 (254 words)

	Lockyer, Joseph Norman (Site not responding. Last check: 2007-10-21)
		Although Lockyer had been the first to think of it, the same idea had occurred to French astronomer Pierre Janssen, then working in India, and they simultaneously notified the French Academy of Sciences of the same result.
		Later they worked together, Janssen providing the observations of the Sun's spectrum that led to the discovery of helium.
		Lockyer also developed the theory that Stonehenge is oriented towards the direction in which the Sun rises at the time of the summer solstice.
	cartage.org.lb /en/themes/Biographies/MainBiographies/L/Lockyer/1.html (202 words)

	Neuronal Migration Depends on Intact Peroxisomal Function in Brain and in Extraneuronal Tissues -- Janssen et al. 23 ...
		Gressens P, Baes M, Leroux P, Lombet A, Van Veldhoven P, Janssen A, Vamecq J, Marret S, Evrard P (2000) Neuronal migration disorder in Zellweger mice is secondary to glutamate receptor dysfunction.
		Huyghe S, Casteels M, Janssen A, Meulders L, Mannaerts GP, Declercq PE, Van Veldhoven PP, Baes M (2001) Prenatal and postnatal development of peroxisomal lipid-metabolizing pathways in the mouse.
		Janssen A, Baes M, Gressens P, Mannaerts GP, Declercq P, Van Veldhoven PP (2000) Docosahexaenoic acid deficit is not a major pathogenic factor in peroxisome-deficient mice.
	www.jneurosci.org /cgi/content/full/23/30/9732 (5481 words)

	Facts about Helium
		Helium was first detected during a solar eclipse in 1868 as a bright yellow line in the spectrum of the chromosphere of the Sun, by French astronomer Pierre Janssen.
		The famous Russian Scientist, Dimitri Mendeleev, perceived the correct classification method of "the periodic table" for the 65 elements which were known in his time.
		Helium was first detected by French astronomer Pierre Janssen.
	www.facts-about.org.uk /science-element-helium.htm (432 words)

	AllRefer.com - Pierre Jules CEsar Janssen (Astronomy, Biography) - Encyclopedia
		AllRefer.com - Pierre Jules CEsar Janssen (Astronomy, Biography) - Encyclopedia
		You are here : AllRefer.com > Reference > Encyclopedia > Astronomy, Biographies > Pierre Jules CEsar Janssen
		Pierre Jules CEsar Janssen[pyer zhUl sAzAr´ zhANsen´] Pronunciation Key, 1824–1907, French astronomer.
	reference.allrefer.com /encyclopedia/J/JanssenP.html (251 words)

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