21. Science: Mathematics: Mathematicians: De La Hire, Philippe - Open Site Science Mathematics Mathematicians de la hire, philippe Open Site. http://open-site.org/Science/Mathematics/Mathematicians/de_la_Hire,_Philippe/

Open Site The Open Encyclopedia Project home submit content become an editor the entire directory only in Mathematicians/de_la_Hire,_Philippe Top Science Mathematics Mathematicians : de la Hire, Philippe Biography Philippe De la Hire (or Lahire), born in Paris on March 18, 1640, and died there on April 21, 1719, wrote on graphical methods, 1673; on the conic sections, 1685; a treatise on epicycloids, 1694; one on roulettes, 1702; and, lastly, another on conchoids, 1708. His works on conic sections and epicycloids were founded on the teaching of Desargues, whose favourite pupil he was. He also translated the essay of Moschopulus on magic squares, and collected many of the theorems on them which were previously known; this was published in 1705. This category needs an editor - apply here Open Site Code 0.5.3 robot company. Visit our sister sites dmoz.org mozilla.org chefmoz.org musicmoz.org ... edit

22. Allmath.com - Math Site For Kids! Home Of Flashcards, Math hire, philippe de la. eer. (16401718). Engineer, born in Paris, France.He became a teacher of mathematics at the Collège Royal, and five years later http://www.allmath.com/biosearch.php?QMeth=ID&ID=15482

23. Encyclopedia Of Astronomy And Astrophysics » La Hire, Philippe De [Philippe I] la hire, philippe de philippe I (1640–1718) and la hire, Gabrielphilippede philippe II (1677–19). DOI 10.1888/0333750888/3783; Published November http://eaa.iop.org/index.cfm?action=summary&doc=eaa/3783@eaa-xml

24. Encyclopedia Of Astronomy And Astrophysics » Browse By Title Article la hire, philippe de philippe I (1640–1718) and la hire, Gabrielphilippede philippe II (1677–19); Published November 2000 http://eaa.iop.org/index.cfm?action=browse.home&type=ti&dir=L

25. Philippe De La Hire Mathematicians Mathematics Science All about philippe de la hire Mathematicians Mathematics Science. http://infotut.com/reference/Science/Mathematics/Mathematicians/de_la_Hire,_Phil

Encyclopedia Music Library Music Message Board Geography ... Mathematicians : de la Hire, Philippe Biography Philippe De la Hire (or Lahire), born in Paris on March 18, 1640, and died there on April 21, 1719, wrote on graphical methods, 1673; on the conic sections, 1685; a treatise on epicycloids, 1694; one on roulettes, 1702; and, lastly, another on conchoids, 1708. His works on conic sections and epicycloids were founded on the teaching of Desargues, whose favourite pupil he was. He also translated the essay of Moschopulus on magic squares, and collected many of the theorems on them which were previously known; this was published in 1705. This category needs an editor - apply here Open Site - Encyclopedia Project Open Site Become an Editor Hot Albums XandY Emancipation of Mimi In Your Honor Monkey Business ... Kids var site="s20infotut"

26. The Galileo Project René Taton, la première oeuvre géométrique de philippe de la hire, Revued histoire des sciences, 6 (1953), 93111. http://galileo.rice.edu/Catalog/NewFiles/lahire_phi.html

La Hire, Philippe de [Philippe I] 1. Dates Born: Paris, 18 March 1640 Died: Paris, 21 April 1718 Dateinfo: Dates Certain Lifespan: 78 2. Family Financial Circumstance: Gov He was the eldest son of Laurent de La Hire, peintre ordinaire du roi, and founder and professor at the Académie Royale de Peinture and Sculpture. La Hire's father was also one of the first disciples of Desargues. No information on financial status. 2. Father Occupation: 3. Nationality Birth: French Career: French Death: French 4. Education Schooling: No University He was educated among artists and technicians. At an early age he became interested in perspective, practical mechanics, drawing and painting. 5. Religion Affiliation: Catholic 6. Scientific Disciplines Primary: Astronomy, Mathematics, Mechanics Subordinate: Zoology, Physiology, Meteorology After his father's death he spent four years in Venice where he developed his artistic talent and studied classical geometry. Upon his return to France he was active primarily as an artist. He formed a friendship with Abraham Bosse, Desargues last disciple, who asked La Hire to solve a problem in stonecutting. In 1673 La Hire published Nouvelle methode en géometrie pour les sections des superficies coniques et cylindriques from his research in constructing conic sections. Twelve years later he published a much more extensive work, Sectiones conicae, through which Desargues' projective geometry became known.

27. The Galileo Project la hire, Gabrielphilippe de philippe II. 1. Dates Born Paris, 25 July 1677Died Paris, 4 June 1719 Dateinfo Dates Certain Lifespan 42; 2. http://galileo.rice.edu/Catalog/NewFiles/lahire_gab.html

La Hire, Gabriel-Philippe de [Philippe II] 1. Dates Born: Paris, 25 July 1677 Died: Paris, 4 June 1719 Dateinfo: Dates Certain Lifespan: 2. Father Occupation: Scientist, Government Official He was the son of the astronomer Philippe de La Hire and his first wife Catherine Lesage. His grandfather was Laurent de La Hire, 'peintre ordinaire du roi' and professor of painting and sculpture at the Académie Royale. His half brother studied medicine and became a member of the Académie as a botanist in 1709. No information on financial status. 3. Nationality Birth: French Career: French Death: French 4. Education Schooling: No University Gabriel-Philippe was educated at the Paris observatory where he lived after 1682. He was initiated from childhood into astronomy and the techniques of meteorological and astronomical observations. At first he was destined to become a doctor and studied medicine under Duverney. His great interest in mathematics took him down the same path as his father. 5. Religion Affiliation: Catholic 6. Scientific Disciplines

28. Philippe De La Hire - Wikipedia, The Free Encyclopedia philippe de la hire (or lahire or Phillipe de la hire), French mathematician andastronomer, was born in Paris on March 18, 1640, and died there on April 21 http://en.wikipedia.org/wiki/Philippe_de_la_Hire

Wikimedia needs your help in its 21-day fund drive. See our fundraising page You did it! Nearly US$220,000 has been raised . Thank you for your generosity! Philippe de la Hire From Wikipedia, the free encyclopedia. Philippe de la Hire (or Lahire or Phillipe de La Hire French mathematician and astronomer , was born in Paris on March 18 , and died there on April 21 . He wrote on graphical methods, 1673; on the conic sections , 1685; a treatise on epicycloids , 1694; one on roulettes , 1702; and, lastly, another on conchoids , 1708. His works on conic sections and epicycloids were founded on the teaching of Desargues , whose favourite pupil he was. He also translated the essay of Manuel Moschopulus on magic squares , and collected many of the theorems on them which were previously known; this was published in 1705. He also published a set of astronomical tables in 1702. This text incorporates public domain material from Rouse History of Mathematics This biographical article is a stub . You can help by expanding it Retrieved from " http://en.wikipedia.org/wiki/Philippe_de_la_Hire

29. Mons La Hire - Wikipedia, The Free Encyclopedia with the point oriented toward the westnorthwest. The peak has a height of1.5 km above the surface. This feature was named after philippe de la hire. http://en.wikipedia.org/wiki/Mons_La_Hire

Wikimedia needs your help in its 21-day fund drive. See our fundraising page You did it! Nearly US$220,000 has been raised . Thank you for your generosity! Mons La Hire From Wikipedia, the free encyclopedia. Mons La Hire is a solitary lunar mountain in the western Mare Imbrium . It is located to the northeast of Euler crater , and to the west-northwest of Lambert crater The selenographic coordinates of this feature are 27.8° N, 25.5° W, and it has a maximum extent across the surface of 25 km. The mountain base has a shape roughly like an arrow head, with the point oriented toward the west-northwest. The peak has a height of 1.5 km above the surface. This feature was named after Philippe de la Hire edit Nearby craters Several tiny craters near this mountain have been assigned names by the IAU . These are listed in the table below. Felix and Verne are located to the south of the peak, while the remainder are grouped to the north and northeast. Crater Longitude Latitude Diameter Name source Annegrit 29.4° N 25.6° W 1 km German feminine name Charles 29.9° N

30. List Of Scientists By Field Translate this page la hire, Gabriel-philippe de. la hire, Gabriel-philippe de la hire, philippe de.la hire, philippe de. la Mettrie, Julien Offray de http://www.indiana.edu/~newdsb/l.html

La Brosse, Guy de La Brosse, Guy de La Brosse, Guy de La Condamine, Charles-Marie de La Condamine, Charles-Marie de La Faille, Charles de La Hire, Gabriel-Philippe de La Hire, Gabriel-Philippe de La Hire, Gabriel-Philippe de La Hire, Philippe de La Hire, Philippe de La Hire, Philippe de La Hire, Philippe de La Mettrie, Julien Offray de La Mettrie, Julien Offray de La Mettrie, Julien Offray de La Mettrie, Julien Offray de La Rive, Arthur-Auguste de La Rive, Charles-Gaspard de La Rive, Charles-Gaspard de La Rive, Charles-Gaspard de La Roche, Estienne de Lacaille, Nicolas-Louis de Lacaille, Nicolas-Louis de Lack, David Lambert Lacroix, Alfred Ladenburg, Albert Ladenburg, Rudolf Walther Lagny, Thomas Fantet de Lagny, Thomas Fantet de Lagrange, Joseph Louis Lagrange, Joseph Louis Lagrange, Joseph Louis Laguerre, Edmond Nicolas Lalla Lamarck, Jean-Baptiste-Pierre- Antoine De Monet de Lamb, Horace Lamb, Horace Lamb, Horace Lambert, Johann Heinrich Lambert, Johann Heinrich Lambert, Johann Heinrich Lambert, Johann Heinrich Lamont, Johann von Lamont, Johann von

31. New Dictionary Of Scientific Biography la hire, philippe de lalande, JosephJérôme Lefrançais de lalla lambert, JohannHeinrich lamont, Johann von langren, Michael Florent van http://www.indiana.edu/~newdsb/astor.html

Make Suggestions Astronomical Sciences Abbe, Cleveland Abetti, Antonio Abney, William de Wiveleslie Abraham Bar ?iyya Ha-Nasi Ab?'l-Waf al-B?zj?n?, Mu?ammad Ibn Mu?ammad Ibn Ya?y? Ibn Ism?l Ibn al- ?Abb?s Acyuta Pira?i Adams, John Couch Adelard of Bath Ailly, Pierre d' Airy, George Biddell Aitken, Robert Grant Albrecht, Carl Theodor Alfonso El Sabio Alzate y Ramírez, José Antonio Anaximander Andoyer, Henri André, Charles Louis François Angelus, Johannes Ångstrüm, Anders Jonas Anthelme, Voituret Antiphon Antoniadi, Eugène M. Apian, Peter Arago, Dominique François Jean Aratus of Soli Argelander, Friedrich Wilhelm August Argoli, Andrea Aristarchus of Samos Aristotle Aristyllus Arrest, Heinrich Louis d' Asada G?ry? Autolycus of Pitane Auwers, Arthur Julius Georg Friedrich von Auzout, Adrien Baade, Wilhelm Heinrich Walter Babinet, Jacques Backlund, Jüns Oskar Bailey, Solon Irving Bailly, Jean-Sylvain Baily, Francis Banachiewicz, Thaddeus Ban? M?s? Baranzano, Giovanni Antonio

32. "LA HIRE, Philippe;", Veterum Mathematicorum, Athenaei, Apollodori, Philonis, Bi (Reliure de l époque). http://www.polybiblio.com/basane/1560.html

Librairie Thomas-Scheler "LA HIRE, Philippe;" Veterum Mathematicorum, Athenaei, Apollodori, Philonis, Bitonis, Heronis, et aliorum Opera graece et latine pleraque nunc primum edita. Ex Manuscriptis Codicibus Bibliotheca Regie. Parisiis Ex typog. Regie 1693 In-folio de XVI, 355 pp.mal ch. 365 et 4 ff.n.ch.; basane, dos à nerfs orné. (Reliure de l'époque). This item is listed on Bibliopoly by Librairie Thomas-Scheler ; click here for further details.

33. "LA HIRE, Philippe;", Mémoires De Mathematique Et De Physique, Contenant Un Tra rouge, dos à nerfs. (Reliure moderne). http://www.polybiblio.com/basane/1559.html

Librairie Thomas-Scheler "LA HIRE, Philippe;" Paris Imprimerie Royale 1694 In-4 de 4 ff.n.ch., 302 pp. ch., 1 f. n.ch.; basane, pièce de titre en maroquin rouge, dos à nerfs. (Reliure moderne). D.S.B., VII, pp. 576-79. Smith, Hist. of Mathematics, I, p. 386. Edition originale. La Hire fut pendant près d'un demi-siècle l'un des principaux auteurs scientifiques français. Non seulement il publia de nombreux écrits et mémoires, mais aussi s'occupa de l'édition des oeuvres de Picard, Mariotte et Frénicle, entre autres. L'on trouve ici un certain nombre de ses oeuvres dont la réunion reflète ses nombreux centres d'intérêt. Bel exemplaire. Ex-libris Bibliotheca Mechanica. This item is listed on Bibliopoly by Librairie Thomas-Scheler ; click here for further details.

34. Biography Of Hire, Philippe De La Biographies of people living and dead of all nations. http://www.allbiographies.com/biography-PhilippedelaHire-15482.html

search biography names match all words match any words use wildcards browse biographies get a new biography browse by name browse by year online dictionary allmath.com math for students travel deals hotel rooms biography classifications major works cross references biography name: Hire, Philippe de la pronunciation: [eer] sex: male lived: biography: (1695), in which he correctly analysed the forces acting at various points in an arch, making use of geometrical techniques now generally known as graphic statics. browse by name A B C D ... Z browse by year 2700 - 691 BC 690 - 531 BC 530 - 481 BC 480 - 391 BC ... Allsites LLC

35. Imago Mundi - Philippe Et Gabriel De La Hire. http://www.cosmovisions.com/LaHire.htm

Les gens La Hire Principaux ouvrages - T La Hire A B C D ... Z

36. La Hire | Philippe De | 18 March 1640-21 April 1718 | Astronomer And Mathematici la hire philippe de 18 March 164021 April 1718 astronomer and mathematician.Solutio Probl de angulis per Algebram vulgarem (1691-1701) http://www.nahste.ac.uk/pers/l/GB_0237_NAHSTE_P2089/

the project the collections biographies multimedia the project the collections biographies multimedia ... Solutio Probl: ... de angulis per Algebram vulgarem

37. Comanducci - Risultati Della Ricerca. Translate this page de la hire philippe. XVII XVIII sec. de la GUÊPIÈRE Jacques. XVIII sec. de laGUÊPIÈRE philippe. XVIII sec. de la GUERRA Juan. XVI sec. http://www.comanducci.it/italiano/risultati.asp?Ricerca=DE LA HIRE Philippe

38. Storia Dell'Arte, Info Tratte Dal Dizionario Comanducci hire Étienne de la hire Marie V. WEYRICH de la hire Marie de la hire philippe http://www.comanducci.it/elenco/elencoD21.htm

Elenco Artisti presenti su www.comanducci.it PAGINA: A B C D ... DE LA HUERTA Gaspard

39. La Hire's Theorem The theorem bears the name of philippe de la hire, a French artist, architectand mathematician born in the 17th century. http://www.cut-the-knot.com/pythagoras/LaHire.shtml

Username: Password: Sites for teachers Sites for parents Awards Interactive Activities ... Sites for parents La Hire's Theorem: What Is It About? A Mathematical Droodle Explanation Alexander Bogomolny La Hire's Theorem The applet suggests the following theorem: If point A lies on the polar of point B, then point B lies on the polar of A. The theorem bears the name of Philippe de La Hire , a French artist, architect and mathematician born in the 17 th century. Proof By definition , the polar of B is perpendicular to OB, where O is the center of the circle of reference at the inverse image C of B. Therefore, where R is the radius of the circle. Assume point A lies on polar of point B. Then AC is perpendicular OB. Let D lie on OA with BD perpendicular to the latter. Triangles OAC and OBD are similar (they are both right and share an angle at O.) From here we obtain a proportion OA/OB = OC/OD, which can also be written as , so that D is the inverse image of A and BD is its polar, which proves the theorem. Note that the proof works in all cases, except where the three points O, A, and B are collinear. The polars of A and B are then parallel, the triangles OAC and OBD degenerate into straight line segments, and the proof fails. But then obviously A coincides with C, and (1) still holds. In this case, A and C are just inverse images of each other. Poles and Polars Brianchon's Theorem Complete Quadrilateral Harmonic Ratio ... Inversion La Hire's Theorem La Hire's Theorem, a Variant

40. Biografia De Hire, Philippe De La Translate this page hire, philippe de la. (París, 1640- id., 1718) Matemático francés. Profesor enel Colegio de Francia, se ocupó también de temas astronómicos. http://www.biografiasyvidas.com/biografia/h/hire_philippe.htm

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