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* François Arago ( 1786 – 1853 ), the physicist, astronomer and liberal politician, who secured the abolition of slavery in the French colonies in 1853, was born in the nearby village of Estagel ( Estagell ) and is memorialized in the eponymous Place Arago that bears his statue in the centre of the town.
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François and Arago
In September of 1820, Ampère ’ s friend and eventual eulogist François Arago showed the members of the French Academy of Sciences the surprising discovery of Danish physicist Hans Christian Ørsted that a magnetic needle is deflected by an adjacent electric current.
* The experiment of François Arago ( 1810 ), to confirm whether refraction, and thus the aberration of light, is influenced by Earth's motion.
* October 2 – François Arago, French Catalan mathematician, physicist, astronomer and politician ( b. 1786 )
The rotation of the orientation of linearly polarized light was first observed in 1811 in quartz by French physicist François Jean Dominique Arago.
In 1840, François Arago, the director of the Paris Observatory, suggested to the French mathematician Urbain Jean Joseph Le Verrier that he work on the topic of the planet Mercury's orbital motion around the Sun.
François Jean Dominique Arago (), known simply as François Arago (; Catalan: Francesc Aragó, ) ( 1786 – 1853 ), was a French mathematician, physicist, astronomer and politician.
Showing decided military tastes, François Arago was sent to the municipal college of Perpignan, where he began to study mathematics in preparation for the entrance examination of the École Polytechnique.
* 1811 — François Jean Dominique Arago discovers that some quartz crystals continuously rotate the electric vector of light
* A memoir by François Arago, read on 26 February 1844 before the Academie des Sciences, and published in Notices biographiques, t. ii.
Following suggestions by François Arago, Léon Foucault and Fizeau collaborated in a series of investigations on the interference of light and heat.
In the early 19th century, Brougham, a follower of Newton, launched vicious anonymous attacks in the Edinburgh Review against Thomas Young's research that proved light was a wave phenomenon that exhibited interference and diffraction, attacks that slowed acceptance of the truth for a decade until François Arago and Augustin-Jean Fresnel championed Young's work.
Under assurances of strict confidentiality, Daguerre explained and demonstrated the process only to the Academy's perpetual secretary François Arago, who proved to be an invaluable advocate.
The idea of a rotating magnetic field was developed by François Arago in 1824, and first implemented by Walter Baily.
In 1847, a letter from François Arago, perpetual secretary of the Academy of Sciences ( Paris ) announced his intention to write a biography of Franciscus Vieta.
François and 1786
The first person to observe current eddies was François Arago ( 1786 – 1853 ), the 25th Prime Minister of France, who was also a mathematician, physicist and astronomer.
In 1840, by recommendation of François Arago ( 1786 – 1853 ), his teacher at the École Polytechnique, to the Grand-Duke of Tuscany, Matteucci accepted a post of professor of physics at the University of Pisa.
Marie-Thérèse was joined by two brothers and a sister, Louis Joseph Xavier François, Dauphin of France, in 1781, Louis-Charles de France, Duke of Normandy in 1785, and Sophie Hélène Béatrix, Madame Sophie, in 1786.
He was the brother of François Arago ( 1786 – 1853 ), a scientist and politician, the most famous of the four Arago brothers.
* Jean François de Chastellux, Voyages of M. le Marquis de Chastellux in North America in the years 1780, 1781 and 1782 ( 1786 ) ( reissue: Tallandier, Paris 1980 )
François and –
The movement was particularly dominated by François Quesnay ( 1694 – 1774 ) and Anne-Robert-Jacques Turgot ( 1727 – 1781 ).
* 1914 – World War I: Battle of Stallupönen – The German army of General Hermann von François defeats the Russian force commanded by Paul von Rennenkampf near modern-day Nesterov, Russia.
* 1837 – Marie François Sadi Carnot, French statesman, 4th President of the French Republic ( d. 1894 )
François de Neufville, Duke of Villeroi, Marshal of France, ( 1644 – 1730 ) by Alexandre-François Caminade.
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