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Topic: Jean Victor Poncelet


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  Jean-Victor Poncelet - Biocrawler   (Site not responding. Last check: 2007-11-05)
Born to a poor family in Metz, France, Poncelet won a scholarship to the lycée' and then the École Polytechnique where he studied under Gaspard Monge.
Poncelet left Metz in 1835 and became professor of mechanics at the Sorbonne in 1838.
Poncelet retired from his administrative duties in 1850 to devote himself to mathematical research.
www.biocrawler.com /encyclopedia/Jean-Victor_Poncelet   (344 words)

  
  Jean-Victor Poncelet - Wikipedia, the free encyclopedia
Poncelet has been attributed to have introduced the concept of work as the product of force and translation.
Poncelet left Metz in 1835 and became professor of mechanics at the Sorbonne in 1838.
In 1868 Adhémar Jean Claude Barré de Saint-Venant was elected to succeed Jean-Victor Poncelet in the mechanics section of the Académie des Sciences.
en.wikipedia.org /wiki/Jean-Victor_Poncelet   (385 words)

  
 Reference.com/Encyclopedia/Jean-Victor Poncelet
Jean-Victor Poncelet was born in Metz, France on July 1, 1788.
During Poncelet's imprisonment, he studied projective geometry and started to investigate those properties that figures share with their shadows, drafting the book Applications d'analyse et de géométrie that was to be published in two volumes in 1862–1864.
In 1868 Adhémar Jean Claude Barré de Saint-Venant was elected to succeed Jean-Victor Poncelet in the mechanics section of the Académie des Sciences.
www.reference.com /browse/wiki/Jean_Victor_Poncelet   (477 words)

  
 NationMaster - Encyclopedia: Poncelet   (Site not responding. Last check: 2007-11-05)
Poncelet's giant rat is known only from the islands of Bougainville (Papua New Guinea) and Choiseul (Solomon Islands).
Poncelet's giant rat is jeopardized by continued loss of its forest habitat.
Poncelet's giant rat is known only from the islands of Bougainville (part of the country of
www.nationmaster.com /encyclopedia/Poncelet   (254 words)

  
 Jean Victor Poncelet - LoveToKnow 1911
JEAN VICTOR PONCELET (1788-1867), French mathematician and engineer, was born at Metz on the 1st of July 1788.
This work entitles Poncelet to rank as one of the greatest of those who took part in the development of the modern geometry of which G. Monge was the founder.
See J. Bertrand, Eloge historique de Poncelet (Paris, 1875).
www.1911encyclopedia.org /Jean_Victor_Poncelet   (317 words)

  
 Poncelet, Jean-Victor - Hutchinson encyclopedia article about Poncelet, Jean-Victor
Poncelet had been a pupil of Gaspard Monge, the originator of modern synthetic geometry, but Poncelet also used analytical geometry and contributed greatly to the development of the relatively new synthetic (projective) geometry.
Poncelet developed a new model of a variable counterweight drawbridge, which he described and publicized in 1822.
His most important technical contributions were concerned with hydraulic engines, such as Poncelet's water wheel, with regulations and with dynamometers, as well as in devising various improvements to his own fortification techniques.
encyclopedia.farlex.com /Poncelet,+Jean-Victor   (290 words)

  
 Jean-Victor Poncelet Summary
Poncelet was the illegitimate son of a well-off landowner and lawyer.
Poncelet returned to Metz in 1804 and continued his studies at the city's lycée (the equivalent of elementary school).
Poncelet returned to France upon his release and was appointed captain of the engineering corps at Metz.
www.bookrags.com /Jean-Victor_Poncelet   (2104 words)

  
 WaterWheel Factory - Poncelet Waterwheel
Jean V. Poncelet studied the lowly undershot, the least efficient of all water wheels.
The Poncelet design, on the other hand, presented a curved blade with its lip angled tangentially to the incoming water so as to eliminate the impact to near zero.
In the Poncelet wheel, the water climbed up the curved incline, cresting about 150 after entry and receding to the lip in another 15-degree devoid of practically all of its forward momentum thus transferring substantially all of its energy to the wheel.
www.waterwheelfactory.com /poncelet.htm   (845 words)

  
 Jean Victor Poncelet - Encyclopedia.com
Jean Victor Poncelet, 1788-1867, French mathematician and army engineer.
He taught at the school of mechanics at Metz and at the Faculté des Sciences and the École Polytechnique, both in Paris.
Alexander I, Tsar of Russia, 1777; Jean- Francois Champollion, Egyptologist...
www.encyclopedia.com /doc/1E1-Poncelet.html   (450 words)

  
 Turbomachinery - Figure 2.2   (Site not responding. Last check: 2007-11-05)
Jean Victor Poncelet was born in Metz in 1788.
Poncelet was awarded the "Prix de Mechanique" by the French Academy for his design in recognition of his wheel having achieved an efficiency of 30 percent, double that of the older wheels.
A couple of years after Poncelet introduced his wheel, his contryman Benoit Fourneyron turned it sideways letting water to be admitted over the entire wheel.
rclsgi.eng.ohio-state.edu /courses/Korpela/images/turbo/poncelet.html   (260 words)

  
 Anecdotage.Com - Thousands of true funny stories about famous people. Anecdotes from Gates to Yeats
While serving as a lieutenant of engineers in Napoleon's army in 1813, Jean Victor Poncelet was badly wounded and left for dead on the Russian battlefield.
Though captured by the Russians and marched through four months of winter, he survived and became a prisoner of war.
Poncelet, Jean Victor (1788-1867) French mathematician, army engineer, and professor [noted for his role in the development of projective geometry, outlined in his Traité des propriétés projectives des figures (1822; 2d ed., 2 vol., 1865—66)]
www.anecdotage.com /index.php?aid=1613   (143 words)

  
 Poncelet
Poncelet took part in Napoleon's 1812 Russian campaign as an engineer.
Poncelet was one of the founders of modern projective geometry simultaneously discovered by Joseph
Poncelet published Applications d'analyse et de géométrie in two volumes: 1862 and 1864.
www.educ.fc.ul.pt /icm/icm2003/icm14/Poncelet.htm   (190 words)

  
 Perspective and Geomety
Poncelet further noted that while the line AB is divided harmonically by points C and D, the reciprocal is also true, that is, CD is also divided harmonically by A and B.
Jean Lud forged an agreement with the Doge, according to which René II would accept as enemies all the enemies of Venice, with the exception of the King of France.
And the circle circumbscribing the square is generated from the sphere, and is perceived inclined as an oval or as a lens depending on the position of the frontal view.
www.schillerinstitute.org /fid_91-96/952_met_of_persp.html   (9462 words)

  
 Poncelet-Steiner theorem - Wikipedia, the free encyclopedia
This result is the best possible: a straightedge alone, without a circle given, cannot construct square roots.
The result was conjectured by Jean Victor Poncelet in 1822, and proven by Jakob Steiner in 1833.
Jacob Steiner's theorem at cut-the-knot (It is impossible to find the center of a given circle with the straightedge alone)
en.wikipedia.org /wiki/Poncelet-Steiner_theorem   (121 words)

  
 test   (Site not responding. Last check: 2007-11-05)
Jean-Victor Poncelet is often called the founder of projective geometry.
This describe the principle of continuity, which was highly controversial for the time, as it led to the introduction of imaginary points.
Poncelet returned to France in 1814, where he worked as a military engineer, then taught mechanics at a local military school.
mathsyear2000.org /timeline/test-mathinfo.php?m=jean-victor-poncelet   (233 words)

  
 AllRefer.com - Jean-Victor Poncelet Information
He moved to the University of Paris 1838 and ended his career as commandant of the Ecole Polytechnique with the rank of general.
He became the centre of controversy over the principle of continuity, and developed the circular points at infinity.
Poncelet developed a new model of a variable counterweight drawbridge, which he described and publicized in 1822.
www.allrefer.com /jean-victor-poncelet   (298 words)

  
 Abstracts
Let C and D be two plane conics (a circle and an ellipse for example).
When is it possible to find an n-sided polygon which is simultaneously inscribed in C and circumscribed around D? In 1822 Jean-Victor Poncelet proved that if there is one such polygon, then there are infinitely many.
We will look at some of the pre-history of this problem, then sketch a modern proof (due to Griffiths) utilizing elliptic curves.
math.arizona.edu /~gradcolloq/fll99abs.html   (1030 words)

  
 AllRefer.com - Jean Victor Poncelet (Mathematics, Biography) - Encyclopedia
You are here : AllRefer.com > Reference > Encyclopedia > Mathematics, Biographies > Jean Victor Poncelet
Jean Victor Poncelet[zhAN´ vEktOr´ pONslA´] Pronunciation Key, 1788–1867, French mathematician and army engineer.
He taught at the school of mechanics at Metz and at the FacultE des Sciences and the Ecole Polytechnique, both in Paris.
reference.allrefer.com /encyclopedia/P/Poncelet.html   (188 words)

  
 P.P. Cook's Tangent Space: Poncelet's Porism
Infrequent and random comments on maths and theoretical physics as seen from the point of view of a PhD student.
A week ago last Friday John Silvester from KCL's very own maths department gave us a very entertaining geometry colloquium under the esoteric title "Pendulums, Pencils, and the Poristic Polygons of Poncelet".
Having thanked the audience for his invitation to speak, he told us a story about an unnamed mathematician who was invited to talk on a BBC radio show and was told that the fee would be £100.
ppcook.blogspot.com /2006/02/poncelets-porism.html   (631 words)

  
 About "Gallica"
Une sélection de documents numérisés qui montrent la diversité des collections manuscrites de la Bibliothèque nationale de France: les oeuvres de Joseph Liouville, Augustin Cauchy, Joseph Fourier, Henri Poincaré, Janos Bolyai, Nicolaï Lobachevsky, Jean-Victor Poncelet, Evariste Galois, Felix Klein, Georg Cantor, Joseph-Louis Lagrange, Niels-Henrick Abel, Edmond Nicolas Laguerre, et autres.
Linear Algebra, Modern Algebra, Analysis, Geometry, History and Biography, Number Theory, Topology
The Math Forum is a research and educational enterprise of the Drexel School of Education.
mathforum.org /library/view/62772.html   (77 words)

  
 Jean Victor Poncelet
While a prisoner of war (1813–14) in Russia during Napoleon I's campaign, he evolved the foundations of the modern form of
Related content from HighBeam Research on: Jean Victor Poncelet
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www.infoplease.com /ce6/people/A0839648.html   (68 words)

  
 Poncelet, Jean ... - ENCYCLOPEDIA - The History Channel UK   (Site not responding. Last check: 2007-11-05)
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