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Pierre Testu-Brissy
Pierre Testu-Brissy (or possibly Tessu-Brissy) (1770? – 1829) was a pioneering French balloonist who achieved fame for making flights astride his horse. Ballooning career Testu-Brissy made his first balloon ascent in 1785 or 1786, and the first night ascent on 11 May or 18 June 1786 in a hydrogen balloon. He subsequently undertook more than 50 flights in his lifetime. Gaston Tissandier's ''Histoire des ballons et des aéronautes célèbres'' (''History of famous balloons and aeronauts'') (published in 1887) described Testu-Brissy's earliest ballooning thus : * ''During the last years of the eighteenth century, besides the military applications by men of heart and patriotism, balloons continued to contribute to national and military festivals. Three years before the Revolution, Testu-Brissy, a new aeronaut, gave himself the title of physicist and announced plans for a twenty-four hour balloon flight, using a hydrogen balloon with oars similar to Jean-Pierre Blanchard.' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
France
France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pacific and Indian Oceans. Its Metropolitan France, metropolitan area extends from the Rhine to the Atlantic Ocean and from the Mediterranean Sea to the English Channel and the North Sea; overseas territories include French Guiana in South America, Saint Pierre and Miquelon in the North Atlantic, the French West Indies, and many islands in Oceania and the Indian Ocean. Due to its several coastal territories, France has the largest exclusive economic zone in the world. France borders Belgium, Luxembourg, Germany, Switzerland, Monaco, Italy, Andorra, and Spain in continental Europe, as well as the Kingdom of the Netherlands, Netherlands, Suriname, and Brazil in the Americas via its overseas territories in French Guiana and Saint Martin (island), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plasma (physics)
Plasma () 1, where \nu_ is the electron gyrofrequency and \nu_ is the electron collision rate. It is often the case that the electrons are magnetized while the ions are not. Magnetized plasmas are ''anisotropic'', meaning that their properties in the direction parallel to the magnetic field are different from those perpendicular to it. While electric fields in plasmas are usually small due to the plasma high conductivity, the electric field associated with a plasma moving with velocity \mathbf in the magnetic field \mathbf is given by the usual Lorentz force, Lorentz formula \mathbf = -\mathbf\times\mathbf, and is not affected by Debye shielding. Mathematical descriptions To completely describe the state of a plasma, all of the particle locations and velocities that describe the electromagnetic field in the plasma region would need to be written down. However, it is generally not practical or necessary to keep track of all the particles in a plasma. Therefore, plasma physicist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
André-Jacques Garnerin
André-Jacques Garnerin (31 January 176918 August 1823) was a French balloonist and the inventor of the frameless parachute. He was appointed Official Aeronaut of France. Biography Garnerin was born in Paris. He was captured by British troops during the first phase of the French Revolutionary Wars 1792–1797, turned over to the Austrians and held as a prisoner of war in Buda in Hungary for three years. Balloons and parachutes Ballooning Garnerin, a student of the ballooning pioneer professor Jacques Charles, was involved with the flight of hot air balloons, and worked with his older brother Jean-Baptiste-Olivier Garnerin (1766–1849) in most of his ballooning activities. Eventually he was appointed Official Aeronaut of France. Garnerin began experiments with early parachutes based on umbrella-shaped devices and carried out the first frameless parachute descent (in the gondola) with a silk parachute on 22 October 1797 at Parc Monceau, Paris (1st Brumaire, Year VI of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jacques Charles
Jacques Alexandre César Charles (November 12, 1746 – April 7, 1823) was a French inventor, scientist, mathematician, and balloonist. Charles wrote almost nothing about mathematics, and most of what has been credited to him was due to mistaking him with another Jacques Charles, also a member of the Paris Academy of Sciences, entering on May 12, 1785. He was sometimes called Charles the Geometer. Charles and the Robert brothers launched the world's first unmanned hydrogen-filled gas balloon in August 1783; then in December 1783, Charles and his co-pilot Nicolas-Louis Robert ascended to a height of about 1,800 feet (550 m) in a manned gas balloon. Their pioneering use of hydrogen for lift led to this type of balloon being named a ''Charlière'' (as opposed to a Montgolfière which used hot air). Charles's law, describing how gases tend to expand when heated, was formulated by Joseph Louis Gay-Lussac in 1802, but he credited it to unpublished work by Jacques Charles. Charles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Timeline Of Aviation - 18th Century
A timeline is a display of a list of events in chronological order. It is typically a graphic design showing a long bar labelled with dates paralleling it, and usually contemporaneous events. Timelines can use any suitable scale representing time, suiting the subject and data; many use a linear scale, in which a unit of distance is equal to a set amount of time. This timescale is dependent on the events in the timeline. A timeline of evolution can be over millions of years, whereas a timeline for the day of the September 11 attacks can take place over minutes, and that of an explosion over milliseconds. While many timelines use a linear timescale—especially where very large or small timespans are relevant -- logarithmic timelines entail a logarithmic scale of time; some "hurry up and wait" chronologies are depicted with zoom lens metaphors. History Time and space, particularly the line, are intertwined concepts in human thought. The line is ubiquitous in clocks in the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Firsts In Aviation
This is a list of firsts in aviation. For a comprehensive list of women's records, see Women in aviation. First person to fly The first flight (including gliding) by a person is unknown. Several have been suggested. * In 559 A.D., several prisoners of Emperor Wenxuan of Northern Qi, including Yuan Huangtou of Ye, were said to have been forced to launch themselves with a kite from a tower, as an experiment. Only Yuan Huangtou survived, only to be executed later. * In the 9th century, the Andalusian Abbas ibn Firnas attempted a short gliding flight with wings covered with feathers from the Tower of Cordoba but was injured while landing. 00f./ref> * In the early 11th century, Eilmer of Malmesbury, an English Benedictine monk, attempted a gliding flight using wings. He is recorded as travelling a modest distance before breaking his legs on landing.William of Malmesbury – ed. and trans. R. A. B. Mynors, R. M. Thomson, and M. Winterbottom (1998–99). ''Gesta regum Anglorum / T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Ballooning
The history of ballooning, both with hot air and gas, spans many centuries. It includes many firsts, including the first human flight, first flight across the English Channel, first flight in North America, and first aircraft related disaster. Premodern and unmanned balloons Unmanned hot air balloons are popular in Chinese history. Zhuge Liang of the Shu Han kingdom, in the Three Kingdoms era (c. AD 220–280) used airborne lanterns for military signaling. These lanterns are known Chinese lanterns or Kongming lanterns (孔明灯). While there is no direct documentary or archaeological evidence of any manned or unmanned flights prior to those discussed below occurred using these methods, Ege notes an indirect report of evidence that the Chinese "solved the problem of aerial navigation" using balloons, hundreds of years before the 18th century. The Mongolian army studied Kongming lanterns from China and used them in the Battle of Legnica during the Mongol invasion of Poland. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nanterre
Nanterre (, ) is the prefecture of the Hauts-de-Seine department in the western suburbs of Paris. It is located some northwest of the centre of Paris. In 2018, the commune had a population of 96,807. The eastern part of Nanterre, bordering the communes of Courbevoie and Puteaux, contains a small part of the La Défense business district of Paris and some of the tallest buildings in the Paris region. Because the headquarters of many major corporations are located in La Défense, the court of Nanterre is well known in the media for the number of high-profile lawsuits and trials that take place in it. The city of Nanterre also includes the Paris West University Nanterre La Défense, one of the largest universities in the Paris region. Name The name of Nanterre originated before the Roman conquest of Gaul. The Romans recorded the name as ''Nemetodorum''. It is composed of the Celtic word ''nemeto'' meaning "shrine" or "sacred place" and the Celtic word ''duron'' (neuter) "hard ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vendémiaire
Vendémiaire () was the first month in the French Republican calendar. The month was named after the Occitan word ''vendemiaire'' (grape harvester). Vendémiaire was the first month of the autumn quarter (''mois d'automne''). It started on the day of the autumnal equinox, which fell between 22 September and 24 September, inclusive. It thus ended between 21 October and 23 October, and was the season of the vintage in the wine districts of northern France. It follows the Sansculottides of the past year and precedes Brumaire. Day name table Like all FRC months Vendémiaire lasted 30 days and was divided into three 10-day weeks, called ''décades'' (decades). In accordance with the suggestion of Fabre d'Églantine Philippe François Nazaire Fabre d'Églantine (, 28 July 1750 – 5 April 1794), commonly known as Fabre d'Églantine, was a French actor, dramatist, poet, and politician of the French Revolution. He is best known for having invented the names of ..., each of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Consulate
The Consulate (french: Le Consulat) was the top-level Government of France from the fall of the Directory in the coup of 18 Brumaire on 10 November 1799 until the start of the Napoleonic Empire on 18 May 1804. By extension, the term ''The Consulate'' also refers to this period of French history. During this period, Napoleon Bonaparte, as First Consul (), established himself as the head of a more authoritarian, autocratic, and centralized republican government in France while not declaring himself sole ruler. Due to the long-lasting institutions established during these years, Robert B. Holtman has called the Consulate "one of the most important periods of all French history." Napoleon brought authoritarian personal rule which has been viewed as military dictatorship. Fall of the Directory government French military disasters in 1798 and 1799 had shaken the Directory, and eventually shattered it in November 1799. Historians sometimes date the start of the political dow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Château De Bellevue
The Château de Bellevue () was a small château built for Madame de Pompadour in 1750. It was constructed on a broad plateau in Meudon, above a slope overlooking the Seine to the east, but was demolished in 1823 and little remains. History At the instigation of Louis XV, Charles François Paul Le Normant de Tournehem, ''directeur général'' of the ''Bâtiments du Roi'', negotiated the purchase of the land from its various owners, located between Louis' châteaux at Meudon and Saint-Cloud. Ange-Jacques Gabriel, ''Premier architecte du Roi'', proposed the construction of a pleasure house to be named "Bellevue", referring to its views over the Seine. In 1749, Louis gave the land to Madame de Pompadour, who delegated the building to her architect, Jean Cailleteau (called "Lassurance the younger"), assisted in the gardens by Jean-Charles Garnier d'Isle. The work was quickly completed, despite the need for deep foundations. 800 workmen were employed, often with Louis in att ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
