See also:

• JEAN

JEAN See also:

• VICTOR
• VICTOR, GAIUS JULIUS (4th cent. A.D.)
• VICTOR, SEXTUS AURELIUS

VICTOR See also:

• JEAN VICTOR PONCELET (1788-1867)

PONCELET (1788-1867)  , See also:

• FRENCH
• FRENCH, DANIEL CHESTER (1850– )
• FRENCH, NICHOLAS (1604-1678)

French mathematician and engineer, was See also:

• BORN, IGNAZ, EDLER VON (1742–1791)

born at See also:

• METZ

Metz on the 1st of See also:

• JULY

July 1788 . From 1808 to 18ro he attended the Ecole polytechnique, and afterwards, till 1812, the Ecole d'application at Metz . He then became See also:

• LIEUTENANT

lieutenant of See also:

• ENGINEERS, MILITARY

engineers, and took See also:

• PART

part in the See also:

• RUSSIAN

Russian See also:

• CAMPAIGN

campaign, during which he was taken prisoner and was confined at See also:

• SARATOV

Saratov on the See also:

• VOLGA (known to the Tatars as Etil, Jill or Atel; to the Finnish tribes as Rau, and to the ancients as Rha and Oarus)

Volga . It was during his imprisonment here that, " prive de toute espece de livres et de secours, surtout distrait See also:

• PAR (Lat. par, equal)

par See also:

• LES

les malheurs de ma patrie et les miens propres," as he himself puts it, he began his researches on projective See also:

• GEOMETRY

geometry which led to his See also:

• GREAT

great See also:

• TREATISE

treatise on that subject . This See also:

• WORK

work, the Traite See also:

• DES

des propeittes projectives des figures, which was published in 1822 (2d ed., 2 vols . 1865-1866), is occupied with the investigation of the projective properties of figures (see GEOMETRY) . This work entitles See also:

• PONCELET, JEAN VICTOR (1788-1867)

Poncelet to See also:

• RANK (O.Fr. rant or rent, mod. rang, generally connected with the O.E. and O.H.G. bring, a ring)

rank as one of the greatest of those who took part in the development of the See also:

• MODERN

modern geometry of which G . See also:

• MONGE, GASPARD (1746-1818)

Monge was the founder . From 1815 to 1825 he was occupied with military See also:

• ENGINEERING

engineering at Metz; and from 1825 to 1835 he was See also:

• PROFESSOR (the Latin noun formed from the verb profiteri, to declare publicly, to acknowledge, profess)

professor of See also:

• MECHANICS

mechanics at the Ecole d'application there . In 1826, in his Memoire sur les roues hydrauliques d aubes courbes, he brought forward improvements in the construction of See also:

• WATER

water-wheels, which more than doubled their efficiency . In 1834 he became a member of the Academie; from 1838 to 1848 he was professor to the See also:

• FACULTY (through the French, from the Lat. facultas, ability to do anything, from facilis, easy, facere, to do; another form of the word in Lat. facilitas, facility, ease, keeps the original meaning)

faculty of sciences at See also:

• PARIS
• PARIS (also called ALEXANDROS)
• PARIS, ALEXIS PAULIN (1800-x881)
• PARIS, BRUNO PAULIN GASTON (1839-1903)
• PARIS, FRANCOIS DE (169o-1727)
• PARIS, LOUIS PHILIPPE ALBERT
• PARIS, TREATIES OF (1814-1815)

Paris,. and from 1848 to 185o commandant of the Ecole polytechnique . At the See also:

• LONDON

London See also:

• INTERNATIONAL, THE

International See also:

• EXHIBITION

Exhibition of 1851 he had See also:

• CHARGE
• CHARGE (through the Fr. from the Late Lat. carricare, to load in a carrus or wagon; cf. " cargo ")

charge of the See also:

• DEPARTMENT (Fr. departement, from departir, to separate into parts)

department of machinery, and wrote a See also:

• REPORT (O.Fr. report or raport, modern rapport, from O.Fr. reporter, mod. rap porter, Lat. reportare, to bring back, in poetical use only, of bringing back an account, news, &c.)

report on the machinery and tools on view at that exhibition .

He died at Paris on the 23rd of See also:

• DECEMBER (Lat. decent, ten)

December 1867 . See J . See also:

• BERTRAND, HENRI GRATIEN, COMTE (1773-1844)

Bertrand, Eloge historique de Poncelet (Paris, 1875) .