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Fourier, Jean Baptiste Joseph, Baron

(Encyclopedia)Fourier, Jean Baptiste Joseph, Baron, 1768–1830, French mathematician and physicist. He was noted for his researches on heat and on numerical equations. He originated Fourier's theorem on vibratory ...

Rousseau, Jean Jacques

(Encyclopedia)Rousseau, Jean Jacques ro͞osōˈ [key], 1712–78, Swiss-French philosopher, author, political theorist, and composer. Rousseau's influence on posterity has been equaled by only a few, and it is...

Machault d'Arnouville, Jean Baptiste de

(Encyclopedia)Machault d'Arnouville, Jean Baptiste de zhäN bätēstˈ də mäshōˈ därno͞ovēlˈ [key], 1701–94, French statesman. He held a succession of government offices and was (1743–45) intendant of V...

Sismondi, Jean Charles Léonard Simonde de

(Encyclopedia)Sismondi, Jean Charles Léonard Simonde de zhäN shärl lāônärˈ sēmôNdˈ də sēsmôNdēˈ [key], 1773–1842, Swiss historian, economist, and critic. A member of the circle of Mme de Staël, he...

Servan-Schreiber, Jean-Jacques

(Encyclopedia)Servan-Schreiber, Jean-Jacques, 1924–2006, French journalist, politician, and public intellectual, b. Paris, grad. École Polytechnique (1947). A political writer at Le Monde (1948–53), he moved o...

Martignac, Jean Baptiste Sylvère Gay, vicomte de

(Encyclopedia)Martignac, Jean Baptiste Sylvère Gay, vicomte de zhäN bätēstˈ sēlvĕrˈ gā vēkôNtˈ də märtēnyäkˈ [key], 1778–1832, French statesman. He was elected (1821) to the chamber of deputies a...

Saint-Vallier, Jean Baptiste de la Croix

(Encyclopedia)Saint-Vallier, Jean Baptiste de la Croix zhäN bätēstˈ də lä krwä săN-välyāˈ [key], 1653–1727, Roman Catholic bishop of Quebec, b. France. He succeeded François Xavier de Laval in 1688 af...

Bemba Gombo, Jean-Pierre

(Encyclopedia)Bemba Gombo, Jean-Pierre, 1962–, Congolese politician. Born to wealthy parents, he was educated in Brussels and built a business empire in what was then Zaïre. In the early 1990s he was personal as...

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