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Frédéric Sauvage
Frédéric Sauvage (20 September 1786 – 17 July 1857) was a French boat builder who carried out early tests of screw-type marine propellers. Sauvage was born at Boulogne-sur-Mer. In a public demonstration with a small boat on 15 January 1832 in Honfleur, he was able to show that a propeller is more efficient than the then standard paddle-wheels located on the sides of the boat. In 1842, he built the steamer ''Napoléon'' in a joint venture with shipbuilder Augustin Normand. However, he was not able to interest the French Navy in his idea and when he tried to develop it commercially on his own he was not successful, went bankrupt and landed in debtor’s prison for a time. Today, the practical development of propellers is generally credited to the Czech-born Josef Ressel who took out patents in 1827, although Sauvage was clearly a pioneer. External linksWho invented the screw propeller?, ''L'histoire de la Marine *Scientific American ''Scientific American'', informal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frederic Sauvage
Frederic may refer to: Places United States * Frederic, Wisconsin, a village in Polk County * Frederic Township, Michigan, a township in Crawford County ** Frederic, Michigan, an unincorporated community Other uses * Frederic (band), a Japanese rock band * Frederic (given name), a given name (including a list of people and characters with the name) * Hurricane Frederic, a hurricane that hit the U.S. Gulf Coast in 1979 * Trent Frederic, American ice hockey player See also * Frédéric * Frederick (other) * Fredrik Fredrik is a masculine Germanic given name derived from the German name ''Friedrich'' or Friederich, from the Old High German ''fridu'' meaning "peace" and ''rîhhi'' meaning "ruler" or "power". It is the common form of Frederick in Norway, Finland ... * Fryderyk (other) {{disambiguation, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propeller
A propeller (colloquially often called a screw if on a ship or an airscrew if on an aircraft) is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon a working fluid such as water or air. Propellers are used to pump fluid through a pipe or duct, or to create thrust to propel a boat through water or an aircraft through air. The blades are specially shaped so that their rotational motion through the fluid causes a pressure difference between the two surfaces of the blade by Bernoulli's principle which exerts force on the fluid. Most marine propellers are screw propellers with helical blades rotating on a propeller shaft (ship), propeller shaft with an approximately horizontal axis. History Early developments The principle employed in using a screw propeller is derived from sculling. In sculling, a single blade is moved through an arc, from side to side taking care to keep presenting the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boulogne-sur-Mer
Boulogne-sur-Mer (; pcd, Boulonne-su-Mér; nl, Bonen; la, Gesoriacum or ''Bononia''), often called just Boulogne (, ), is a coastal city in Northern France. It is a sub-prefecture of the department of Pas-de-Calais. Boulogne lies on the Côte d'Opale, a touristic stretch of French coast on the English Channel between Calais and Normandy, and the most visited location in the region after the Lille conurbation. Boulogne is its department's second-largest city after Calais, and the 183rd-largest in France.Téléchargement du fichier d'ensemble des populations légales en 2017 [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Honfleur
Honfleur () is a commune in the Calvados department in northwestern France. It is located on the southern bank of the estuary of the Seine across from le Havre and very close to the exit of the Pont de Normandie. The people that inhabit Honfleur are called ''Honfleurais.'' It is especially known for its old port, characterized by its houses with slate-covered frontages, painted frequently by artists. There have been many notable artists, including, Gustave Courbet, Eugène Boudin, Claude Monet and Johan Jongkind, forming the ''école de Honfleur'' (Honfleur school) which contributed to the appearance of the Impressionist movement. The Sainte-Catherine church, which has a bell tower separate from the principal building, is the largest wooden church in France. History The first written record of Honfleur is a reference by Richard III, Duke of Normandy, in 1027. By the middle of the 12th century, the city represented a significant transit point for goods from Rouen to Engla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Aviso Corse (1850)
''Corse'', initially named ''Napoléon'' before its second commission, was a sail and steam experimental schooner, initially commissioned as a mail steamer. Largely overperforming her specifications and an excellent sailor, she was purchased by the Navy and commissioned to serve as an aviso, becoming the first propeller ship in service in the French Navy. She took part in the Crimean War and ferried Prince Napoléon to Iceland in 1856. She was eventually broken up in 1902. Career ''Napoléon'' was designed as a mail steamer, one of the first in France to use propellers. She was a joint venture by engineer Frédéric Sauvage, one of the inventors of the screw propeller, and shipbuilder Augustin Normand, who provided the shipbuilding facilities and insisted for a propeller with several blades.''L'histoire de la Marine de 1700 à 1850'' As the Navy was initially uninterested in a steam and sail propeller ship, Normand protested to the Ministry of Finance, who agreed to commissi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Augustin Normand
Augustin may refer to: * Augustin (name), male name, variant of Augustine * Augustin (typography), English or 14-point type * Augustin, Brașov, a commune in Brașov County, Romania * Dacian fortress of Augustin, ruined Dacian fortified town in modern Romania * Palace of Augustin, a palace in Vitoria, Spain Film * ''Augustin'' (film), a 1995 French film * '' Augustin, King of Kung-Fu'', 1999 French movie Music * O du lieber Augustin ("Oh, you dear Augustin"), a popular Viennese song * "Augustin" (song), Sweden's 1959 Eurovision Song Contest entry See also * Augustine (other) Saint Augustine of Hippo (354–430), was a Church Father. Augustine may also refer to: People * Augustine (actor) (1955–2013), Malayalam film actor * Augustine of Canterbury (died 604), the first Archbishop of Canterbury * Saint Augustine (d ... * Agustin {{Disambiguation, geo, hn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Navy
The French Navy (french: Marine nationale, lit=National Navy), informally , is the maritime arm of the French Armed Forces and one of the five military service branches of France. It is among the largest and most powerful naval forces in the world, ranking seventh in combined fleet tonnage and fifth in number of naval vessels. The French Navy is one of eight naval forces currently operating fixed-wing aircraft carriers,Along with the U.S., U.K., China, Russia, Italy, India and Spain with its flagship being the only nuclear-powered aircraft carrier outside the United States Navy, and one of two non-American vessels to use catapults to launch aircraft. Founded in the 17th century, the French Navy is one of the oldest navies still in continual service, with precursors dating back to the Middle Ages. It has taken part in key events in French history, including the Napoleonic Wars and both world wars, and played a critical role in establishing and securing the French colonial ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Josef Ressel
Joseph Ludwig Franz Ressel ( cs, Josef Ludvík František Ressel; June 29, 1793 – October 9, 1857) was a forester and inventor of Czech-Austrian descent, who designed one of the first working ship's propellers. Ressel was born in Chrudim, Bohemia then part of the Holy Roman Empire ruled by the Habsburg monarchy, which became part of the Austrian Empire at his death (now the Czech Republic). His father Anton Hermann Ressel was a native German speaker, and his mother Marie Anna Konvičková was a native Czech speaker. He studied at the Linz Gymnasium, Budweis (in today's České Budějovice) artillery school, University of Vienna and the Mariabrunn Forestry Academy at Mariabrunn Monastery then near (now in) Vienna. He worked for the Austrian government as a forester in the more southern parts of the monarchy, including in Motovun, Istria (modern-day Croatia). His work was to secure a supply of quality wood for the Navy.''Josef Ressel. One of the designers of a ship's propel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientific American
''Scientific American'', informally abbreviated ''SciAm'' or sometimes ''SA'', is an American popular science magazine. Many famous scientists, including Albert Einstein and Nikola Tesla, have contributed articles to it. In print since 1845, it is the oldest continuously published magazine in the United States. ''Scientific American'' is owned by Springer Nature, which in turn is a subsidiary of Holtzbrinck Publishing Group. History ''Scientific American'' was founded by inventor and publisher Rufus Porter (painter), Rufus Porter in 1845 as a four-page weekly newspaper. The first issue of the large format newspaper was released August 28, 1845. Throughout its early years, much emphasis was placed on reports of what was going on at the United States Patent and Trademark Office, U.S. Patent Office. It also reported on a broad range of inventions including perpetual motion machines, an 1860 device for buoying vessels by Abraham Lincoln, and the universal joint which now can be found ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1786 Births
Events January–March * January 3 – The third Treaty of Hopewell is signed, between the United States and the Choctaw. * January 6 – The outward bound East Indiaman '' Halsewell'' is wrecked on the south coast of England in a storm, with only 74 of more than 240 on board surviving. * February 2 – In a speech before The Asiatic Society in Calcutta, Sir William Jones notes the formal resemblances between Latin, Greek, and Sanskrit, laying the foundation for comparative linguistics and Indo-European studies. * March 1 – The Ohio Company of Associates is organized by five businessmen at a meeting at the Bunch-of-Grapes Tavern in Boston, to purchase land from the United States government to form settlements in what is now the U.S. state of Ohio. * March 13 – Construction begins in Dublin on the Four Courts Building, with the first stone laid down by the United Kingdom's Viceroy for Ireland, the Duke of Rutland. April–June * Apri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1857 Deaths
Events January–March * January 1 – The biggest Estonian newspaper, ''Postimees'', is established by Johann Voldemar Jannsen. * January 7 – The partly French-owned London General Omnibus Company begins operating. * January 9 – The 7.9 Fort Tejon earthquake shakes Central and Southern California, with a maximum Mercalli intensity of IX (''Violent''). * January 24 – The University of Calcutta is established in Calcutta, as the first multidisciplinary modern university in South Asia. The University of Bombay is also established in Bombay, British India, this year. * February 3 – The National Deaf Mute College (later renamed Gallaudet University) is established in Washington, D.C., becoming the first school for the advanced education of the deaf. * February 5 – The Federal Constitution of the United Mexican States is promulgated. * March – The Austrian garrison leaves Bucharest. * March 3 ** France and the United Kingdom f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People From Boulogne-sur-Mer
A person ( : people) is a being that has certain capacities or attributes such as reason, morality, consciousness or self-consciousness, and being a part of a culturally established form of social relations such as kinship, ownership of property, or legal responsibility. The defining features of personhood and, consequently, what makes a person count as a person, differ widely among cultures and contexts. In addition to the question of personhood, of what makes a being count as a person to begin with, there are further questions about personal identity and self: both about what makes any particular person that particular person instead of another, and about what makes a person at one time the same person as they were or will be at another time despite any intervening changes. The plural form "people" is often used to refer to an entire nation or ethnic group (as in "a people"), and this was the original meaning of the word; it subsequently acquired its use as a plural form of per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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