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Auguste-Savinien Leblond
Auguste-Savinien Leblond d'Olblen (19 October 1760 – 22 February 1811) was a French mathematician. In 1790, he coined the name ''metre'' for the unit of length. Life Auguste-Savinien Leblond came from a family of mathematicians. It was the profession of his father, and above all his great-uncle Guillaume Le Blond, and he himself was a teacher of mathematics, while publishing works that earned him the esteem of his peers. He is remembered as the inventor of a fixed and universal measurement of length, which, in 1790, he named "the metre". Borda would adopt this name two years later. He also designed mechanical devices called "logarithmic dials", for converting traditional and metric measures, that were quickly abandoned in favour of slide rules A member of the ''Lycée des Arts'' (School of Arts) and employed in the Prints Department of the Royal Library, the ''Bibliothèque Royale'', he was particularly interested in what was known as "education through the eyes", the use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematics
Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics with the major subdisciplines of number theory, algebra, geometry, and analysis, respectively. There is no general consensus among mathematicians about a common definition for their academic discipline. Most mathematical activity involves the discovery of properties of abstract objects and the use of pure reason to prove them. These objects consist of either abstractions from nature orin modern mathematicsentities that are stipulated to have certain properties, called axioms. A ''proof'' consists of a succession of applications of deductive rules to already established results. These results include previously proved theorems, axioms, andin case of abstraction from naturesome basic properties that are considered true starting points of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guillaume Le Blond
Guillaume Le Blond (1704 – May 24, 1781) was a French mathematician. He was born in Paris. He was a professor of mathematics at the grand stable of the King (1736) and then the Fils de France, Enfants de France (1756). Leblond kept this job until 1778, when he became secretary of the cabinet of Madame Victoire. Le Blond wrote the following works, some of which have been translated into German language, German. His work "''Éléments de fortification"'' was translated to ''Ottoman Turkish language'' in 1834 as "''Usûl-i İstihkâmât''"(Method of Fortifications) by Ishak Efendi. * ''Essai sur la castramétation'', 1748, in-8°) ; * ''Éléments de tactique'', 1758, in-4° ; * ''Artillerie raisonnée contenant l’usage des différentes bouches à feu'', 1761, in-8° ; * ''l’Arithmétique et la géométrie de l’officier'', 1768, 2 vol. in-8° ; * ''Traité de l’attaque des places'', 1780, in-8° ; * ''Éléments de fortification'', 1739, in-8°. He also produced edition ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematics
Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics with the major subdisciplines of number theory, algebra, geometry, and analysis, respectively. There is no general consensus among mathematicians about a common definition for their academic discipline. Most mathematical activity involves the discovery of properties of abstract objects and the use of pure reason to prove them. These objects consist of either abstractions from nature orin modern mathematicsentities that are stipulated to have certain properties, called axioms. A ''proof'' consists of a succession of applications of deductive rules to already established results. These results include previously proved theorems, axioms, andin case of abstraction from naturesome basic properties that are considered true starting points of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean-Charles De Borda
Jean-Charles, chevalier de Borda (4 May 1733 – 19 February 1799) was a French mathematician, physicist, and Navy officer. Biography Borda was born in the city of Dax to Jean‐Antoine de Borda and Jeanne‐Marie Thérèse de Lacroix. In 1756, Borda wrote ''Mémoire sur le mouvement des projectiles'', a product of his work as a military engineer. For that, he was elected to the French Academy of Sciences in 1764. Borda was a mariner and a scientist, spending time in the Caribbean testing out advances in chronometers. Between 1777 and 1778, he participated in the American Revolutionary War. In 1781, he was put in charge of several vessels in the French Navy. In 1782, he was captured by the English, and was returned to France shortly after. He returned as an engineer in the French Navy, making improvements to waterwheels and pumps. He was appointed as France's Inspector of Naval Shipbuilding in 1784, and with the assistance of the naval architect Jacques-Noël Sané in 17 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slide Rule
The slide rule is a mechanical analog computer which is used primarily for multiplication and division, and for functions such as exponents, roots, logarithms, and trigonometry. It is not typically designed for addition or subtraction, which is usually performed using other methods. Maximum accuracy for standard linear slide rules is about three decimal significant digits, while scientific notation is used to keep track of the order of magnitude of results. Slide rules exist in a diverse range of styles and generally appear in a linear, circular or cylindrical form, with slide rule scales inscribed with standardized Graduation (instrument), graduated markings. Slide rules manufactured for specialized fields such as aviation or finance typically feature additional scales that aid in specialized calculations particular to those fields. The slide rule is closely related to nomograms used for application-specific computations. Though similar in name and appearance to a standard ruler ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bibliothèque Nationale De France
The Bibliothèque nationale de France (, 'National Library of France'; BnF) is the national library of France, located in Paris on two main sites known respectively as ''Richelieu'' and ''François-Mitterrand''. It is the national repository of all that is published in France. Some of its extensive collections, including books and manuscripts but also precious objects and artworks, are on display at the BnF Museum (formerly known as the ) on the Richelieu site. The National Library of France is a public establishment under the supervision of the Ministry of Culture. Its mission is to constitute collections, especially the copies of works published in France that must, by law, be deposited there, conserve them, and make them available to the public. It produces a reference catalogue, cooperates with other national and international establishments, and participates in research programs. History The National Library of France traces its origin to the royal library founded at t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antoine Nicolas Duchesne
Antoine Nicolas Duchesne (born 7 October 1747 Versailles; died 18 February 1827 Paris) was a French botanist known for his keen observation of variation within species, and for demonstrating that species are not immutable, because mutations can occur.Darrow, G.M. 1966. The Strawberry: History, Breeding and Physiology. Holt, Rinehart and Winston. "As Duchesne's observations were unaided by knowledge of modern concepts of genetics and molecular biology, his insight was truly remarkable." His particular interests were in strawberries and gourds.Ratcliff, M. J. (2007). ''Duchesne’s Strawberries: Between Growers’ Practices and Academic Knowledge''. In S. Müller-Wille and H.-J. Rheinberger [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles-Nicolas Cochin
Charles-Nicolas Cochin (22 February 1715 – 29 April 1790) was a French engraver, designer, writer, and art critic. To distinguish him from his father of the same name, he is variously called Charles-Nicolas Cochin le Jeune (the Younger), Charles-Nicolas Cochin le fils (the son), or Charles-Nicolas Cochin II. Early life Cochin was born in Paris, the son of Charles-Nicolas Cochin the Elder (1688–1754), under whom he studied engraving.Charles-Nicolas Cochin the Younger at britannica.com (accessed 11 February 2008) His mother was Louise-Magdeleine Horthemels (1686–1767), who herself was an important engraver in Paris for some fifty years. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Société Des Observateurs De L'homme
Société des observateurs de l'homme, rendered in English as Society of Observers of Man, was a French learned society founded in Paris in 1799. Long considered the birthplace of French anthropology, the society nevertheless dissolved in 1804. History The ''Société des observateurs de l'homme'' was founded on Christian principles by Roch-Ambroise Cucurron Sicard, Louis-François Jauffret and Joseph de Maimieux. The brevity of its existence and relative dearth of records provide scant history, but they did leave traces of their involvement with feral child Victor of Aveyron, as well as the Baudin expedition to Australia. The Constitution of the Society was set at its inaugural meeting in the Rue de Seine, August 1799. There they brought together naturalists, physicians (including psychiatrists), philosophers, writers, historians, linguists, orientalists and archaeologists under the chairmanship of John de Maimieux. Louis-François Jauffret, at whose home they met, was named ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
18th-century French Mathematicians
The 18th century lasted from January 1, 1701 ( MDCCI) to December 31, 1800 ( MDCCC). During the 18th century, elements of Enlightenment thinking culminated in the American, French, and Haitian Revolutions. During the century, slave trading and human trafficking expanded across the shores of the Atlantic, while declining in Russia, China, and Korea. Revolutions began to challenge the legitimacy of monarchical and aristocratic power structures, including the structures and beliefs that supported slavery. The Industrial Revolution began during mid-century, leading to radical changes in human society and the environment. Western historians have occasionally defined the 18th century otherwise for the purposes of their work. For example, the "short" 18th century may be defined as 1715–1789, denoting the period of time between the death of Louis XIV of France and the start of the French Revolution, with an emphasis on directly interconnected events. To historians who expand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
19th-century French Mathematicians
The 19th (nineteenth) century began on 1 January 1801 ( MDCCCI), and ended on 31 December 1900 ( MCM). The 19th century was the ninth century of the 2nd millennium. The 19th century was characterized by vast social upheaval. Slavery was abolished in much of Europe and the Americas. The First Industrial Revolution, though it began in the late 18th century, expanding beyond its British homeland for the first time during this century, particularly remaking the economies and societies of the Low Countries, the Rhineland, Northern Italy, and the Northeastern United States. A few decades later, the Second Industrial Revolution led to ever more massive urbanization and much higher levels of productivity, profit, and prosperity, a pattern that continued into the 20th century. The Islamic gunpowder empires fell into decline and European imperialism brought much of South Asia, Southeast Asia, and almost all of Africa under colonial rule. It was also marked by the collapse of the large ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1760 Births
Year 176 ( CLXXVI) was a leap year starting on Sunday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Proculus and Aper (or, less frequently, year 929 ''Ab urbe condita''). The denomination 176 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * November 27 – Emperor Marcus Aurelius grants his son Commodus the rank of ''Imperator'', and makes him Supreme Commander of the Roman legions. * December 23 – Marcus Aurelius and Commodus enter Rome after a campaign north of the Alps, and receive a triumph for their victories over the Germanic tribes. * The Equestrian Statue of Marcus Aurelius is made. It is now kept at Museo Capitolini in Rome (approximate date). Births * Fa Zheng, Chinese nobleman and adviser (d. 220) * Liu Bian, Chinese emperor of the Han Dynasty ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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