La Hire, Philippe De Philippe de la Hire. Mathematician, astronomer, physicist, naturalist, and painter, b. in Paris, 18 March, 1640; d. in Paris, 21 April, 1718; http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126
Enciclopedia Cat Lica de La Fontaine, Jean de La Fosse, Charles de La Harpe, JeanFran ois La Haye, Jean de La Hire, Philippe de La Luzerne, C sar-Guillaume La http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126
The Galileo Project This catalog is a collection of 631 detailed biographies on members of the scientific community during the 16th and 17th centuries with vital facts http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126
De La Hire (Hi Re), Gabriel Philippe De La Hire (Hi re), Gabriel Philippe. Geb. 1677; gest. http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126
Biografia De Hire, Philippe De La Reportajes. Los protagonistas de la actualidad. Hire, Philippe de La (Par s, 1640 id., 1718) Matem tico franc s. http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126
Philippe De La Hire Philippe de la Hire http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126
Philippe De La Hire Philippe de la hire philippe de la Hire (or Lahire), French mathematician, was born in Paris on March 18, 1640, and died there on April 21, 1719 http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126
Historique Translate this page la hire philippe de(1640-1718), Astronome et mathématicien français, professeurde mathématiques au Collège de France, il introduit une méthode générale des http://sciences.univ-angers.fr/physique/scphy/dossier/historique.html
Extractions: BIOGRAPHIES Mersenne Marin(1588-1648) La Hire Philippe de(1640-1718) Sauveur Joseph(1653-1716) Bernoulli Daniel(1700-1787) Euler Leonhard(1707-1783) Alembert Jean le Rond d' (1717-1783) Monge Gaspard(1746-1818) Lagrange Joseph Louis(1736-1813) Fourier Joseph(1768-1830) Lagrange Louis de(1736-1813) Biographies recueillies dans:- Le Dictionnaire des inventeurs et des scientifiques
Glaucoma Et Cataracte 1705-1708 Translate this page Suite à cette lecture, le physicien Philippe de La Hire prit la défense des positions de la hire philippe de La Hire 17 février 1706 Registre des pv p. http://www.snof.org/histoire/glaucoma.html
Storenorskeleksikon.no la hire philippe de fransk kunstner, astronom og matematiker. Han er kjent forsine arbeider om kjeg Laos Kunst I skulptur er buddhafigurer og scener fra http://www.storenorskeleksikon.no/Advanced/underemner.aspx?emne=800
Museo Della Specola, Bologna - Catalogo, Gnomoni, 3 Translate this page la hire philippe de (1640-1718) 130 Lacchini Giovanni Battista (1884-1967) 80Lambertini Prospero, vedi Benedetto XIV Lauro Vincenzo (a. XVI sec.) 33 http://www.bo.astro.it/dip/Museum/english/indnom.html
LA BIBLIOTHEQUE DU DIX-SEPTIEMISTE Translate this page la hire philippe de, Nouveaux Eléments des sections coniques, les lieux géométriques,la construction ou effection des équations, par M. de la Hire, Paris, http://odalix.univ-bpclermont.fr/Cibp/Bib17/B17-A-I2.htm
Extractions: **** Indispensable. DANCOURT , voir ci-dessous Théâtre du XVII e Siècle . Pour mémoire. DANIEL Gabriel Voyage du monde de Descartes , Paris, 1690, qui n'a jamais été étudié sérieusement. DASSOUCY Charles Les aventures de M. Dassoucy , publiées dans Les libertins du XVII e siècle , I, éd. Jacques Prévot, Pléiade, Gallimard, Paris, 1998. DE BEAUNE Florimond , éd. P. Costabel et B. Barbiche, Vrin, Paris, 1975. Beau traité de géométrie, mais réservé aux amateurs. De Beaune a aussi commenté la Géométrie de Descartes. DESARGUES Girard e siècle. René Taton a publié son Brouillon Projet avec une excellente introduction ( , Vrin, 1981). On attend une édition mise à jour prochainement. Il est vrai que sa lecture demande un petit effort, mais on se sent tellement mieux quand on a compris le théorème de Pappus... Il existe une traduction anglaise, avec introduction : FIELD J. V. et GRAY J.J., The geometrical work of Girard Desargues , New York, Berlin, Springer-Verlag, 1987.
Extractions: Home Encyclopedia Summa Fathers ... L > Philippe de la Hire A B C D ... Z Mathematician, astronomer, physicist, naturalist, and painter, b. in Paris, 18 March, 1640; d. in Paris, 21 April, 1718; was, as Fontenelle said, an academy in himself. His father, Laurent de La Hire, (1606-1656), was a distinguished artist. Philippe first studied painting in Rome, where he had gone for his health in 1660, but on his return to Paris, soon devoted himself to the classics and to science. He showed particular aptitude for mathematics, in which subject he was successively the pupil and associate in original investigation of Desargues. In 1678, he was made a member of the Academy of Sciences, section of astronomy. Beginning in 1679, in connexion with the construction of a map for the Government, he made extended observations in Brittany, Guienne, Calais, Dunkirk, and Provence. In 1683, he continued the principal meridian north from Paris, Cassini The chief contributions of La Hire were in the department of pure geometry. Although familiar with the analytic method of Descartes , which he followed in treatises published in 1679, his most important works were developed in the method of the ancients. He continued the work of Desargues and of
CATHOLIC ENCYCLOPEDIA: Index For L labbe, philippe labour and labour Legislation labour Unions, Moral Aspects of la hire, philippe de lahore laibach laicization lainez, James http://www.newadvent.org/cathen/l.htm
La_Hire Biography of philippe de la hire (16401718) philippe de la hire was educatedas an artist and became skilled in drawing and painting. http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/La_Hire.html
Extractions: Version for printing Philippe de la Hire was educated as an artist and became skilled in drawing and painting. He visited Italy where he spent four years developing his artistic skills and learning geometry. The interest in geometry arose from his study of perspective in art. La Hire was elected to the Much influenced by the work of Desargues , La Hire worked on conic sections which he treated projectively. He published his first work on conic sections in 1673. In 1675 he published a more comprehensive work on conic sections Sectiones conicae which contained a description of Desargues projective geometry . In 1708 he calculated the length of the cardioid. Other topics to which he made important contributions included astronomy, physics and geodesy. In astronomy he installed the first transit instrument in the Paris Observatory. He also produced tables giving the movements of the Sun, Moon and the planets.
References For La_Hire References for the biography of philippe de la hire. R Taton, la premièreoeuvre géométrique de philippe de la hire, Rev. Hist. Sci. http://www-groups.dcs.st-and.ac.uk/~history/References/La_Hire.html
Extractions: A Buti and M Corradi, The contributions of a 17th century mathematician to an architectural problem : Philippe de la Hire and the statics of arches (Italian), Atti Accad. Ligure Sci. Lett. B de Fontenelle, (Paris, 1818), 257-266. Rev. Hist. Sci. Appl. Revue d'histoire des sciences Main index Birthplace Maps Biographies Index
De Lahire philippe de la hire I (16401718) was the son of laurent de la hire, a founder and la première oeuvre géométrique de philippe de la hire, Revue http://kmoddl.library.cornell.edu/biographies/De_la_Hire/index.php
Extractions: Biographical Information: In mechanics, the shape of a gear tooth is vitally important to the way it transfers the driving power from tooth to tooth, from gear to gear, and ultimately to the rest of the machine. During the brief tooth contact experienced when two gears meet, the curved surfaces actually roll together like two wheels. Thus the tooth rolling action of gear teeth is essentially the same as two wheels that are in continuous contact. And just as one pair of teeth completes their contact, the next pair takes over, creating uniform pressure and motion. Known as the involute curve, this epicycloidal profile for gear teeth provides a rolling action rather than a rubbing action, and is Philippe Is greatest contribution to mechanics. Sources for Further Information on the De Lahire Family: Carl B. Boyer. "Note on Epicycles & the Ellipse from Copernicus to Lahire."
