81. BSHM: Abstracts -- B Bradley, Mary, ‘prony the bridgebuilder the life and times of gaspard de prony,educator and scientist’, Centaurus 37 (1994), 230-278 de prony (1755-1839 http://www.dcs.warwick.ac.uk/bshm/abstracts/B.html

The British Society for the History of Mathematics HOME About BSHM BSHM Council Join BSHM ... Search BSHM Abstracts A B C D ... Z These listings contain all abstracts that have appeared in BSHM Newsletters up to Newsletter 46. BSHM Abstracts - B Bagheri, Mohammad, ‘A newly found letter of al-Kashi on scientific life in Samarkand’, Historia mathematica A letter from al-Kashi to his father, written about 1423, two years after his arrival in Samarkand, has recently been found in a library in Teheran. It contains much new first-hand information about the scientific atmosphere of Samarkand in the time of Ulugh Beg. Bagheri, Mohammad, ‘Mathematical problems of the famous Iranian poet Naser-e Khosrow’, Historia mathematica Three indeterminate problems and their solutions, two leading to linear equations and one to a quadratic equation, from a fragment, newly discovered in Tehran, of a lost 11th century work, written (unusually for mathematics) in Persian. Physis Using a hypothesis traceable through Mersenne and Galileo to Euclid, Euler in Tentamen novae theoriae musicae (1739) calculated the degrees of order associated with chords and sequences of chords. D’Alembert (1779) made complex and rigorous deductions from a fundamental

82. Stable, The dynamometer of gaspard Clair François Marie Riche de prony 17551839, by meansof which engineers measure the performance of machines, also employs the http://kr.cs.ait.ac.th/~radok/physics/B5.htm

Motion on precribed trajectory Stable, unstable, indifferent equilibrium In order to discover how gravity affects the state of motion of a mass, you need only examine that of its centre of gravity. For this purpose, you imagine the mass to be concentrated at the C.G. For example, you may know that in spite of gravitational action a body remains at rest, if it is horizontally supported (or vertically suspended), because it receives vertically upwards the same propulsion which gravity gives it downwards. The body is in equilibrium. But this equilibrium can take different forms. In Fig. 64 A is the highest, B the lowest point of a circular arc, C a point of the horizontal plane. At each of them, the mass can be at rest, because at A and B, the arc has the same direction as the horizontal tangent. If you displace the body only a very little bit - let the friction be minimal! - along the arc from A , it will slide along it and never return on its own accord to the original position of equilibrium. If you displace it from B , it also falls along the arc, but tries t

83. Dundee Central Library - Ivory Collection lettres. pp. XXIV + 189. tables. Riche de prony, gaspard CEM Lecons demecanique analytique donnees al'Ecole Royal Polytechnique. Paris http://www.dundeecity.gov.uk/centlib/ivory/ivorycat.htm

Dundee Central Library - Ivory Collection Academie Royale des Sciences et Belles Lettres de Prusse Dissertations sur la theorie des cometes qui ont concouru au prix propose par l'academie. Utrecht: Barthelemy Wild, 1780 Sir James Ivory Collection pp. 239 + VIII + 55 Adhemar, Joseph Alphonse Cours de mathematiques a l'usage de l'ingenieur civil. Part I Arithmetique; Part II Geometrie descriptive. Paris: Carilian-Goeury, 1832 Sir James Ivory Collection 3 vols bound in one. pp. 80 + 160 + 30. Adhemar, Joseph Alphonse Cours de mathematiques a l'usage de l'ingenieur civil. "Geometrie descriptive" planches. Paris: Carilian-Goeury, n.d. Sir James Ivory Collection pp. 44. imp. 4to. missing. Airy, G. B. Gravitation: an elementary explanation of the principle perturbations in the solar system. London: Charles Knight, 1834 Sir James Ivory Collection pp. XXIII + 215. Alembert, Jean-le-Rond-d' Essai d'une nouvelle theorie de la resistance des fluides. Paris: David, 1752 Sir James Ivory Collection pp. XLVI + 212. 2 diagrs. sm. 4to.

84. Objectile Poursuite De La Philosophie Par D'autres Moyens? Translate this page Car l’ordinateur n’a vu le jour ni dans les salles de calcul des tables trigonométriquesque gaspard Marie Riche de prony voulût mettre en manufacture et http://www.objectile.com/theorie/poursuite/poursui.htm

85. Prony Brake Department of Mechanical Engineering Dynamic Systems and Controls Lab The University of Texas at Austin HomeMade prony Brake Updated for Summer 2002 was invented in 1821 by French engineer gaspard prony (17551839). A prony brake, shown below, provides a means http://www.me.utexas.edu/~lotario/me244L/labs/pmdc/pronybrake.html

ME 244L Department of Mechanical Engineering Dynamic Systems and Controls Lab The University of Texas at Austin Home-Made Prony Brake Updated for Summer 2002 Return to PMDC Lab Exercise 1 Go to Document Map Standard Prony Brake Arrangement For this laboratory, we have constructed a 'home-made' Prony brake using an off-the-shelf 'quick-grip' clamp and two wooden brake pads. This arrangement is illustrated below. For the relatively low power and torque application with the PMDC motors used in this lab, this quick solution works well. To get a sense of scale in the figure below, the shaft diameter is about 0.25 inches, and the Quick-Grip is about 8 inches long (Quick-Grip is a registered trademark from American Tool Companies, Inc. ). The model used is the "Micro Bar Clamp and Spreader", #530062. Semester Schedule PMDC Document Map Send comments to: Prof R.G. Longoria, Department of Mechanical Engineering, The University of Texas at Austin

86. Darcy-Weisbach Equation History Thus, his equation performed poorly compared to the empirical prony equation (GaspardClair Francois Marie Riche de prony, 17551839) in wide use at the time;. http://biosystems.okstate.edu/darcy/DarcyWeisbach/Darcy-WeisbachHistory.htm

Henry Darcy and His Law The History of the Darcy-Weisbach Equation Glenn Brown Oklahoma State University revised 2/21/02 Back to Henry Darcy Main Page What we call the Darcy-Weisbach equation has had a long history of development. It is named after two of the great hydraulic engineers of the middle 19th century, but others have also played a major role. Julies Weisbach (1806-1871) a native of Saxony, proposed in 1845 the equation we now use, h l = fL/D * V where hl is the head loss, L is the pipe length, D is the pipe diameter, V is the average velocity, g is the acceleration of gravity and f is a friction factor. However, he did not provide adequate data for the variation in f with velocity. Thus, his equation performed poorly compared to the empirical Prony equation (Gaspard Clair Francois Marie Riche de Prony, 1755-1839) in wide use at the time; h l = L/D * (aV + bV where a and b are empirical friction factors for the velocity and velocity squared. h l = L/D * [(c + d/D V + (d + e/D)V where c, d

87. A Career Biography Of Gaspard Clair François Marie Riche De Prony, Bridge-Bui Mellen Title A Career Biography of gaspard Clair François Marie Riche deProny, BridgeBuilder, Educator and Scientist. Status Not Signed In. http://www.mellenpress.com/emp/mellenpress.cfm?bookid=3274&pc=9

88. Prony's Method Version 1.0 ContentType text/plain; charset=us-ascii Ian; I also did some checkingaround, and it turns out that prony (full name gaspard Clair Francois http://lc.cray.com/lc-users/msg00012.html

Date Prev Date Next Thread Prev Thread Next ... Thread Index Prony's Method To lc-users@maori.colorado.edu Subject : Prony's Method From root@maori.colorado.edu Date : Fri, 11 Dec 1998 17:22:40 -0700 (MST) Reply-To lc-users@maori.colorado.edu Sender owner-lc-users@maori.colorado.edu Pine.GSO.3.96.981208150116.18819A-100000@ucsub.Colorado.EDU Prev by Date: Web site change Next by Date: LC version 2.7 now available. Prev by thread: Web site change Next by thread: LC version 2.7 now available. Index(es): Date Thread

89. Beaujolais : Historie - Slavné Osobnosti postavách zdejšího kraje. Baron z prony gaspard Riche narodil sev Chamelet v roce 1755. Vynálezce dynamometrické brzdy, která http://www.beaujolais.net/tch/his_pers.asp

Slavné osobnosti V edle Juliuse Cézara , který zahájil svoji galskou válku v Beaujolais, zmiòme se je¹tì o nìkolika "slavných postavách" zdej¹ího kraje. Baron z Prony Gaspard Riche : narodil se v Chamelet v roce 1755. Vynálezce dynamometrické brzdy, která nese jeho jméno; spoleènì s Aragem mìøil rychlost zvuku. Manon Rollandová (1754-1793) : Inspirátorka za revoluce girondinù pronesla na popravi¹ti v roce 1793 slavnou vìtu : "Ó, svobodo, kolik zloèinù se páchá tvým jménem" Historie Základní data Souèasnost Slavné osobnosti Claude Bernard Claude Bernard (1813-1878) : Narozen v St Julien v Beaujolais, autor "Úvodu do studia experimentální medicíny" (1865). Victor Vermorel (1853-1927), Victor Vermorel (1853-1927), vynalézavý a vizionáøský prùmyslník : vytvoøil významné støedisko experimentálního výzkumu, vybavené solidní a jedineènou knihovnou. Vydal monumentální ampelografii v ¹esti dílech. Vynalezl rozpra¹ovaèe, vyrábìl automobily a dokonce letadla. Zmiòme je¹tì Utrilla , St Exupéryho, Theillarda du Chardina, Contého, Lamartina, Colette... kteøí ¾ili, pracovali nebo milovali v kraji Beaujolais.

90. M-10 Power And Friction (By the way, the prony brake is named after gaspard Clair Francois Marie Richede prony, who invented it in Paris in 1821 to measure the power of engines. http://badger.physics.wisc.edu/lab/manual/node18.html

Next: M-11 Young's Modulus of Up: Mechanics Previous: MC-9 Angular Acceleration and Rotational Contents M-10 Power and Friction APPARATUS: Prony brake, scale, timer, stopwatch, 15 meter tape. Part A - POWER Measure your horsepower (1 hp = 746 watts) by use of the Prony brake which is mounted on the wall. Try a slow rate that you could keep up all day and another as fast as you can turn the wheel. Figure out what data are required and how to use them. Check with your instructor to be sure you have analyzed the problem correctly. Many calculate the frictional force incorrectly. Measure the horsepower you develop running up a flight of stairs. Part B - FRICTION INTRODUCTION: We measure the coefficient of kinetic friction, , between rope and wheel of the Prony brake and test whether is independent of velocity and of normal force. (By the way, the Prony brake is named after Gaspard Clair Francois Marie Riche de Prony, who invented it in Paris in 1821 to measure the power of engines. He was the director of the Ecole des Ponts et Chausses, a position he chose over joining Napoleon's army that invaded Egypt.) Let f = frictional force/unit length and n = normal force/unit length along the rope. For an element

91. HPS282S - Beginnings Of Scientific Engineering gaspard Riche deprony (1755-1839) A. prony's ideas on Engineering 1. Experience http://www.social.mtu.edu/faculty/sawalton/HPS282/LEC/scieng.html

HPS282S - HISTORY OF TECHNOLOGY AND ENGINEERING Spring 1998 The Beginnings of Scientific Engineering I. Galileo's First Science A. The technological and technical accomplishments of the Renaissance B. Mathematical Practitioners C. Galileo's Life and Work (1564-1642) D. The Two New Sciences 1. Kinematics 2. Strength of Materials E. Galileo's contributions to Engineering 1. Scaleup 2. Conflation and Analysis of the Artificial and Natural World II. Baconianism and the Academic Movement A. Francis Bacon (1561-1626) and the Advancement of Learning B. The Royal Academies of Science 1. Royal Society of London 1660 1. Contents 2. A Disciple of Galileo 3. Handbooks and Formulas 4. Ahead of one's time IV. John Smeaton (1724-1792) A. Antoine Parent and his theoretical work on efficiency of waterwheels (1704) B. Smeaton's Parameter Variation in his waterwheel experiments V. Charles-Augustin Coulomb (1736-1806) A. Engineer, Academician, and Physicist 2. Measurement of magnetic and electrostatic force in 1789 3. Again, "ahead of his time".

92. Biography-center - Letter P Prometheus, www.messagenet.com/myths/bios/promethe.html; prony, Gaspardde wwwhistory.mcs.st-and.ac.uk/~history/Mathematicians/De_prony.html; http://www.biography-center.com/p.html

Visit a random biography ! Any language Arabic Bulgarian Catalan Chinese (Simplified) Chinese (Traditional) Croatian Czech Danish Dutch English Estonian Finnish French German Greek Hebrew Hungarian Icelandic Indonesian Italian Japanese Korean Latvian Lithuanian Norwegian Polish Portuguese Romanian Russian Serbian Slovak Slovenian Spanish Swedish Turkish P 510 biographies www-history.mcs.st-and.ac.uk/~history/Mathematicians/Peres.html www-history.mcs.st-and.ac.uk/~history/Mathematicians/Peter.html www-history.mcs.st-and.ac.uk/~history/Mathematicians/Polya.html Paar, Jack www.pbs.org/wnet/americanmasters/database/paar_j.html Paavolainen, Olavi www.kirjasto.sci.fi/opaavola.htm Pacchia, Girolamo del www.getty.edu/art/collections/bio/a844-1.html Pacchioni, Antonio www.whonamedit.com/doctor.cfm/391.html Pace, Carlos www.grandprix.com/gpe/drv-paccar.html Pacher, Michael www.kfki.hu/~arthp/bio/p/pacher/biograph.html Pacioli, Luca www-history.mcs.st-and.ac.uk/~history/Mathematicians/Pacioli.html Packer, Kerry www.abc.net.au/btn/australians/packer.htm Paczynski, Bohdan www.phys-astro.sonoma.edu/BruceMedalists/Paczynski/index.html www-history.mcs.st-and.ac.uk/~history/Mathematicians/Pade.html

93. Beau1 http://libweb.princeton.edu/libraries/firestone/rbsc/aids/beauharnais/beau1.html

I. Correspondence Box ALQUIER, Charles-Jean-Marie, Baron d'Empire (1752-1826), Diplomat. 19 pieces. 1805-07. D'AUBUSSON DE LA FEUILLADE, Pierre-Raymond-Hector, Comte d'Empire (1765-1848). 7 pieces. 1807-08. AUGUSTINI. 3 pieces. 1805. BANCO. 3 pieces. 1808. BARAGUEY D'HILLIERS, Louis, Comte d'Empire (1764-1813). 296 pieces. 6 folders: 1806-1809. 1 folder: 1809-1810. BARING BROTHERS (London). 1 piece. May, 1821. BATAILLE, Laurent-Edme (1758-1819), Architect. 2 pieces [letters to EB]. 1817-18. BATAILLE (Brother of Auguste). 1 piece [letter to EB]. 1821. BELLEGARDE, Henri (Henrich), Comte (1756-1842), Austrian Commander in Italy. 6 pieces. 1805-06, 1814. BERCHEM, Baron van. 2 pieces [letters to EB]. 1822. BERTHAULT, Georgina. 1 piece [letter to EB]. n.d. 8 folders: 1806-1811. 5 folders: 1812-1814. BERTON, [Jean-Baptiste Breton (1774-1822)?] 1 piece. 1820. BERTRAND, Henri-Gratien, Comte d'Empire (1773-1844), General. 28 pieces. 1807, 1811, 1813-1823. BESSIERES, Jean-Baptiste, Duc d'Istrie (1768-1813), Marshal. 11 pieces. 1805, 1807. BIANCHI D'ADDA. 4 pieces. 1813.

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