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Giffard Dirigible
__NOTOC__ The Giffard dirigible or Giffard airship was an airship built in France in 1852 by Henri Giffard, the first powered and steerable (french: dirigeable, directable) airship to fly. The craft featured an elongated hydrogen-filled envelope that tapered to a point at each end. From this was suspended a long beam with a triangular, sail-like rudder at its aft end, and beneath the beam a platform for the pilot and steam engine. Due to the highly flammable nature of the lifting gas, special precautions were taken to minimise the potential for the envelope to be ignited by the engine beneath it. The engine's exhaust was diverted downwards to a long pipe projecting below the platform, and the area surrounding the boiler's stoke hole was surrounded by wire gauze. On 24 September 1852, Giffard flew the airship from the hippodrome at Place de l'Etoile to Élancourt Élancourt () is a commune in the Yvelines department, and the Île-de-France region, north central France. It is l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is a Wikimedia movement affinity group for contributors with shared goals. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within sister projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by '' Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outside organizations relevant to the field at issue. For e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hippodrome
The hippodrome ( el, ἱππόδρομος) was an ancient Greek stadium for horse racing and chariot racing. The name is derived from the Greek words ''hippos'' (ἵππος; "horse") and ''dromos'' (δρόμος; "course"). The term is used in the modern French language and some others, with the meaning of "horse racecourse". Hence, some present-day horse-racing tracks also include the word "hippodrome" in their names, such as the Hippodrome de Vincennes and the Central Moscow Hippodrome. In the English-speaking world the term is occasionally used for theatres. Overview The Greek hippodrome was similar to the Roman version, the circus. (The hippodrome was not a Roman amphitheatre, which was used for spectator sports, executions, and displays, or a Greek or Roman semicircular amphitheater used for theatrical performances.) The Greek hippodrome was usually set out on the slope of a hill, and the ground taken from one side served to form the embankment on the other side. One en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviation History Of France
Aviation includes the activities surrounding mechanical flight and the aircraft industry. ''Aircraft'' includes fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air craft such as hot air balloons and airships. Aviation began in the 18th century with the development of the hot air balloon, an apparatus capable of atmospheric displacement through buoyancy. Some of the most significant advancements in aviation technology came with the controlled gliding flying of Otto Lilienthal in 1896; then a large step in significance came with the construction of the first powered airplane by the Wright brothers in the early 1900s. Since that time, aviation has been technologically revolutionized by the introduction of the jet which permitted a major form of transport throughout the world. Etymology The word ''aviation'' was coined by the French writer and former naval officer Gabriel La Landelle in 1863. He derived the term from the v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airships Of France
An airship or dirigible balloon is a type of aerostat or lighter-than-air aircraft that can navigate through the air under its own power. Aerostats gain their lift from a lifting gas that is less dense than the surrounding air. In early dirigibles, the lifting gas used was hydrogen, due to its high lifting capacity and ready availability. Helium gas has almost the same lifting capacity and is not flammable, unlike hydrogen, but is rare and relatively expensive. Significant amounts were first discovered in the United States and for a while helium was only available for airships in that country. Most airships built since the 1960s have used helium, though some have used hot air.A few airships after World War II used hydrogen. The first British airship to use helium was the ''Chitty Bang Bang'' of 1967. The envelope of an airship may form the gasbag, or it may contain a number of gas-filled cells. An airship also has engines, crew, and optionally also payload accommodation, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
19th-century French Experimental Aircraft
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 la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Science Museum (London)
The Science Museum is a major museum on Exhibition Road in South Kensington, London. It was founded in 1857 and is one of the city's major tourist attractions, attracting 3.3 million visitors annually in 2019. Like other publicly funded national museums in the United Kingdom, the Science Museum does not charge visitors for admission, although visitors are requested to make a donation if they are able. Temporary exhibitions may incur an admission fee. It is one of the five museums in the Science Museum Group. Founding and history The museum was founded in 1857 under Bennet Woodcroft from the collection of the Royal Society of Arts and surplus items from the Great Exhibition as part of the South Kensington Museum, together with what is now the Victoria and Albert Museum. It included a collection of machinery which became the ''Museum of Patents'' in 1858, and the ''Patent Office Museum'' in 1863. This collection contained many of the most famous exhibits of what is now t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Élancourt
Élancourt () is a commune in the Yvelines department, and the Île-de-France region, north central France. It is located in the western suburbs of Paris, 30.6 km (19.0 mi) from the center of Paris, in the " new town" of Saint-Quentin-en-Yvelines. Transport Élancourt is not linked directly to the Paris Métro, RER, or suburban rail network. The closest station to Élancourt is La Verrière station on the Transilien La Défense and Transilien Paris-Montparnasse suburban rail lines. This station is located in the neighbouring commune of La Verrière, 1.4 km (0.9 mi) from the town center of Élancourt. Population Tourism France Miniature is a tourist attraction in Élancourt featuring scale models of major French landmarks and monuments in an outdoor park. Education The commune has 13 preschools and 10 elementary schools. Public junior high schools in Élancourt: [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Place Charles De Gaulle
Place Charles de Gaulle (), historically known as the Place de l'Étoile (), is a large road junction in Paris, France, the meeting point of twelve straight avenues (hence its historic name, which translates as "Square of the Star") including the Champs-Élysées. It was renamed in 1970 following the death of President Charles de Gaulle. It is still often referred to by its original name; the nearby Métro and RER station retains the designation Charles de Gaulle–Étoile. Paris's ''Axe historique'' ("historical axis") cuts through the Arc de Triomphe, which stands at the centre of Place Charles de Gaulle. History The original name of the area was the ''Butte Chaillot'' ("Chaillot mound", named after the locality). At the time it was the point of convergence of several hunting trails. The Marquis de Marigny constructed monumental roadworks, completed in 1777, on the mound when he was establishing the plantations along the Champs-Élysées. This work included paving of the r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
