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	Dominique Francois Jean Arago - LoveToKnow 1911
		DOMINIQUE FRANCCOIS JEAN ARAGO (1786-1853), French physicist, was born on the 26th of February 1786, at Estagel, a small village near Perpignan, in the department of the eastern Pyrenees.
		Arago was now on his death-bed, under a complication of diseases, induced, no doubt, by the hardships and labours of his earlier years.
		Arago is also fairly entitled to be regarded as having proved the long-suspected connexion between the aurora borealis and the variations of the magnetic elements.
	www.1911encyclopedia.org /Dominique_Francois_Jean_Arago (1778 words)

	Arago
		As an astronomer, Arago is remembered as the discoverer of the solar chromosphere and for his accurate measurements of the diameters of the planets.
		Arago's test for comparing the velocity of light in air and in water or glass was described in 1838, but the experiment required such elaborate preparation that Arago was not ready to perform until 1850, when his sight failed.
		Seems that Arago was the first man to build consciounsly an electromagnet, in September 1820, in the same time he noticed that rhe iron became a magnet only during the flow of current, the effect finished when the current stopped: the basis of Morse telegraph.
	chem.ch.huji.ac.il /~eugeniik/history/arago.html (1705 words)

	Molecular Expressions: Science, Optics and You - Timeline - Dominique-François-Jean Arago
		In 1809, at the age of 23, Arago became a professor of analytical geometry at the prestigious Paris school and was subsequently made director of the Paris Observatory.
		Arago was renowned not only for his own scientific findings, but for his influence on the work of others.
		Arago was also instrumental in the success and funding of Louis-Jacques-Mandé Daguerre's photographic process, known as the daguerreotype, and directed studies that directly led to the discovery of the location of Neptune by Urbain-Jean-Joseph Le Verrier.
	micro.magnet.fsu.edu /optics/timeline/people/arago.html (500 words)

	Arago biography
		Jean Arago (1788-1836) emigrated to North America and had a military career; Jacques Étienne Victor Arago (1799-1855) took part in the voyage of l'Uranie led by Louis de Freycinet to conduct magnetic and oceanographic researches in the Pacific; and Étienne Vincent de Arago (1802-1892) was an author and dramatist.
		Arago managed to persuade the commander of the prison that he was a scientist, not a spy, and the commander agreed to give Arago a chance to escape.
		Arago was held in a Spanish prison in Roses but after only a short spell the Spanish decided to send their prisoners to Palamos since the French armies were advancing through Spain.
	www-groups.dcs.st-and.ac.uk /~history/Biographies/Arago.html (2329 words)

	SCIENCE: The man who inspired Einstein \| Independent, The (London) \| Find Articles at BNET
		Arago reasoned that if a prism were mounted on the end of a telescope, and the telescope pointed at different stars, the degree of light-bending should be different for the light from each star.
		Arago thought that the speed of light was always the same because of the physiology of the eye.
		To understand why Arago's experiment had measured no change in the relative speed of light due to the Earth's motion, it was necessary to postulate that the ether in the vicinity of the Earth was dragged along by the planet.
	findarticles.com /p/articles/mi_qn4158/is_20050420/ai_n14591241 (954 words)

	Arago
		Working with Biot Arago made measurements of arc length on the Earth which led to the standardisation of the metric system of lengths.
		Francois Arago was elected to the Royal Society of London in 1818.
		Boulevard Arago, Jardins Arago and Square Arago are in the 13th Arrondissement in Paris.
	members.tripod.com /sfabel/mathematik/database/Arago.html (450 words)

	Arago
		Arago made early discoveries on the corpuscular theory of light in 1811.
		Arago carried out further experiments of this type and demonstrated several effects which led Faraday later to explain them as induction.
		Biot Arago made measurements of arc length on the Earth which led to the standardisation of the metric system of lengths.
	www.educ.fc.ul.pt /icm/icm2003/icm14/Arago.htm (312 words)

	France 1949 – François Arago
		Arago also studied the polarization of light and is credited with discovering the Sun’s chromosphere at the total eclipse of 1842.
		Arago was director of the Paris Observatory from 1843-53 where he encouraged U.J.J. LeVerrier to study irregularities in the motion of the planet Uranus, which led to the prediction and subsequent discovery of Neptune.
		Arago also worked on electromagnetism, which is presumably why he is shown alongside André Ampère on this stamp, part of a set of four marking the 1949 International Telephone and Telegraph Congress in Paris.
	www.ianridpath.com /stamps/1949bfrance.htm (142 words)

	Arago Dominique FranCois: Free Encyclopedia Articles at Questia.com Online Library
		Arago was an ardent supporter of the wave theory of light.
		The French astronomer and chemist Dominique Francois Jean Arago was the subject of one of...reviewed by Poe.
		Dominique Francois Arago, the eminent French astronomer and physicist, was...for a few hours given to repose," his life, wrote Arago, "was regularly divided between the most interesting...
	www.questia.com /library/encyclopedia/arago-dominique-francois.jsp?l=A&p=6 (680 words)

	Jean Baptiste Biot Research \| Find Jean Baptiste Biot Articles \| Encyclopedia.com: FREE Online Dictionary, ...
		He taught mathematics at Beauvais before becoming (1800) professor of mathematical physics at the Collège de France and later (1809-49) of astronomy at the Sorbonne.
		With French physicist François Arago, Biot measured properties of gases, and with French physicist Felix Savart, he formulated a law for the magnetic force near a wire carrying an electric current.
		Jean Baptiste Boussingault, in 1864, measured O2 and CO2 exchange from leaves, and Sachs finally determined that plants are able to absorb...
	www.encyclopedia.com /topic/Jean_Baptiste_Biot.aspx (551 words)

	DOMINIQUE FRANÇOIS JEAN ARAGO (1786-1853)
		Born on February 26, 1786 in Estagel near Perpignan, ARAGO attended the Polytechnical School.
		In 1805 he became a Secretary at the Bureau des longitudes and continued in this capacity the measurements of the meridian that were started by DELAMBRE and MÉCHAIN, from Barcelona to the island of Formentera.
		In earthquake theory he revived the old idea of earthquakes being caused by the gravitation of the sun and the moon, based on his documentation since 1817, that was continued by PERREY.
	www.univie.ac.at /Wissenschaftstheorie/heat/gallery/arago-g.htm (121 words)

	DOMINIQUE FRANCOIS JEA... - Online Information article about DOMINIQUE FRANCOIS JEA...
		CLOUD (from the same root, if not the same word, as " clod," a word common in various forms to Teutonic languages for a mass or lump; it is first applied in the usual sense in the late 13th century; the Anglo-Saxon chid is only used in the sense of " a ma
		Arago is also fairly entitled to be regarded as having proved the long-suspected connexion between the See also:
		Arago's fEuvres were published after his death under the direction of J.
	encyclopedia.jrank.org /APO_ARN/ARAGO_DOMINIQUE_FRANCOIS_JEAN_1.html (2838 words)

	[No title]
		Thursday, 26 February: Today is the birthday of Dominique François Jean Arago, a French astronomer and physicist born in 1786.
		Arago is best known for his discovery of the chromosphere--the sun's lower atmosphere--which is composed primarily of hydrogen gas, and for his accurate estimates of the diameters of the planets.
		Arago entered politics in 1848 as Minister of War and Marine and was responsible for abolishing slavery in the French colonies.
	bric.postech.ac.kr /science/97now/98_2now/980223c.html (341 words)

	Handbook of Texas Online:
		Dominque François Jean Arago, soldier, was born at Estagel, Pyrénées-Orientales, France, in 1788.
		After the departure of the Spanish, Arago supported the Plan de Iguala, proclaimed by Anastasio Bustamante.
		Policy Agreement Produced in partnership with the University of Texas Libraries and the Center for Studies in Texas History at the University of Texas at Austin.
	www.tsha.utexas.edu /handbook/online/articles/view/AA/far31.html (348 words)

	Encyclopedia: Jean Arago (Site not responding. Last check: )
		Arago was born at Estagel, a small village near Perpignan, in the département of Pyrenees-Orientales, France.
		Arago's earliest physical researches were on the pressure of steam at different temperatures, and the velocity of sound, 1818 to 1822.
		Arago is also fairly entitled to be regarded as having proved the long-suspected connexion between the aurora borealis and the variations of the magnetic pa ments[?].
	www.nationmaster.com /encyclopedia/Jean-Arago (2143 words)

	François Arago -- Facts, Info, and Encyclopedia article (Site not responding. Last check: )
		Jean (1788 - 1836) emigrated to (A continent (the third largest) in the western hemisphere connected to South America by the Isthmus of Panama) North America and became a general in the (A native of inhabitant of Mexico) Mexican army.
		Arago continued the work until 1809, his purpose being to measure a meridian (A continuous portion of a circle) arc in order to determine the exact length of a ((prosody) the accent in a metrical foot of verse) metre.
		Arago is also fairly entitled to be regarded as having proved the long-suspected connexion between the (The aurora of the northern hemisphere) aurora borealis and the variations of the magnetic pa ments[?].
	www.absoluteastronomy.com /encyclopedia/F/Fr/Fran%E7ois_Arago.htm (2029 words)

	Dominique Arago - Wikipedia (Site not responding. Last check: )
		With the rest the crew, Arago was taken to Roses, and imprisoned first in a windmill, and afterwards in the fortress of that seaport, until the town fell into the hands of the French, when the prisoners were transferred to Palamos.
		Through all these vicissitudes Arago had succeeded in preserving the records of his survey; and his first act on his return home was to deposit them in the Bureau des Longitudes at Paris.
		Arago (who was now on his death-bed, under a complication of diseases, induced, no doubt, by the hardships and labours of his earlier wars).
	www.pilkster.com /do/Dominique_Arago.html (1759 words)

	Encyclopedia: FranÃ§ois-Jean-Dominique-Arago (Site not responding. Last check: )
		Jean Baptiste Joseph Delambre (September 19, 1749 in Amiens – August 19, 1822 in Paris) was a French mathematician and astronomer.
		As perpetual secretary it was his duty to pronounce historical éloges on deceased members; and for this duty his rapidity and facility of thought, and his happy piquancy of style, and his extensive knowledge peculiarly adapted him.
		Jean Baptiste Joseph Fourier (March 21, 1768 - May 16, 1830) was a French mathematician and physicist who is best known for initiating the investigation of Fourier series and their application to problems of heat flow.
	www.nationmaster.com /encyclopedia/Fran%E7ois_Jean_Dominique_Arago (4780 words)

	wiki/Jean Arago Definition / wiki/Jean Arago Research (Site not responding. Last check: )
		Jean (1788 - 1836) emigrated to North AmericaNorth America is the third largest continent in area and the fourth ranked in population.
		With the rest the crew, Arago was taken to RosesRoses (Spanish Rosas) is a town with an important port in the Mediterranean Costa Brava, located in the comarca of Alt Empordà, in the province of Girona, Catalonia, Spain.
		Arago's earliest physical researches were on the pressure of steamIn physical chemistry and in engineering, steam refers to vaporized water.
	www.elresearch.com /wiki/Jean_Arago (5157 words)

	Dominique-François-Jean Arago - Wikipedia
		François Arago studierte an der Ecole Polytechnique in Paris.
		Mit Augustin Jean Fresnel fand er 1819 das Gesetz, nach dem zwei in einer Ebene polarisierte Strahlen miteinander interferieren können, zueinander senkrecht polarisierte Strahlen jedoch nicht.
		Seit 1830 war Arago Direktor der Pariser Sternwarte und nutzte hier alle modernen Möglichkeiten der Astronomie und Physik.
	de.wikipedia.org /wiki/Dominique_Francois_Jean_Arago (248 words)

	François Arago (Site not responding. Last check: )
		Arago è stato sopportato a Estagel, un piccolo villaggio vicino a Perpignano, nel département di Pyrenees-Orientales-Orientales, Francia.
		Arago era riuscito a conservare le annotazioni della sua indagine; ed il suo primo atto sulla sua sede di ritorno doveva depositarlo nelle longitudini del DES dell'ufficio a Parigi.
		Arago è stato scelto un membro delle longitudini del DES dell'ufficio immediatamente in seguito ed è stato contribuito a ciascuno di i relativi annuali, per circa ventidue anni, avvisi scientifici importanti su astronomia e la meteorologia ed occasionalmente su ingegneria civile, così come le memorie interessanti dei membri del academy.
	www.yotor.com /wiki/it/fr/Fran%E7ois%20Arago.htm (1989 words)

	François Arago (Site not responding. Last check: )
		François Jean Dominique Arago (February 26, 1786 - October 2, 1853) was a Catalan French mathematician, physicist and astronomer.
		After Biot's departure, the political ferment caused by the entrance of the French into Spain extended to the Canary Islands, and the poulation suspected Arago's movements and his lighting of fires on the top of Mount Galatzo as the activities of a spy for the invading army.
		The general idea of the experimental determination of the velocity of light in the manner subsequently effected by Fizeau and Leon Foucault was suggested by him in 1838, but his failing eyesight prevented his arranging the details or making the experiments.
	www.ukpedia.com /f/francois-arago.html (1996 words)

	Dictionary of Meaning www.mauspfeil.net (Site not responding. Last check: )
		Image:François Arago.jpg right300pxFrançois Arago '''François Jean Dominique Arago''' (February 26, 1786 – October 2, 1853) was a France French mathematician, physicist, astronomer, and politician.
		Jean (1788 - 1836) emigrated to North America and became a general in the Mexico Mexican army.
		Jacques Arago Jacques Etienne Victor (1799 - 1855) took part in Louis de Freycinet's exploring voyage in the ''Uranie'' from as 1817 to 1821, and on his return to France devoted himself to his journalism and the drama.
	www.mauspfeil.net /Francois_Arago.html (2167 words)

	François Arago (Site not responding. Last check: )
		Arago había tenido éxito en preservar los expedientes de su examen; y su primer acto en su hogar de vuelta era depositarlos en las longitudes del DES de la oficina en París.
		Arago fue elegido un miembro de las longitudes del DES de la oficina inmediatamente luego, y contribuido en a cada uno sus publicaciones anuales, por cerca de veintidós años, los avisos científicos importantes astronomía y meteorología y de vez en cuando en el genio civil, así como memorias interesantes de los miembros de la academia.
		Arago lanzó su alma entera en su servicio, y por su facultad de fabricación los amigos él ganó inmediatamente para ella y para se una reputación mundial.
	www.yotor.net /wiki/es/fr/Fran%E7ois%20Arago.htm (1918 words)

	Arago, Dominique François Jean (1786-1853)
		During the solar eclipse of 1842, he examined polarized light from the chromosphere and corona, and determined that the Sun’s limb is gaseous.
		Arago suggested that his student Urbain Leverrier investigate irregularities in the orbit of Uranus and, after Neptune was discovered, took part in the argument regarding naming the planet and, with John Adams, regarding priority.
		Arago also wrote about the possibility of life on comets: "I do not pretend to draw from these considerations the conclusion that comets are populated by beings of our species.
	www.daviddarling.info /encyclopedia/A/Arago.html (379 words)

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