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Jacques-Marie Le Père
Jacques-Marie Le Père (Paris, 25 April 1763 – Granville, 15 June 1841) was a French civil engineer. Life He accompanied the French Campaign in Egypt and Syria, was director of 'Ponts et Chaussées' (bridges and roads) in Egypt. After accompanying the expedition to the remains of the Canal of the Pharaohs, built by Necho II between the River Nile and the Gulf of Suez and improved by Ptolemy II, he was commissioned by Bonaparte to edit an account of the Canal. He was made a member of the Institut d'Égypte on 22 August 1798, in the mathematics section. With his brother Gratien and other engineers working alongside them, he carried out three building programmes (from 19 January to 5 February 1799, in September 1799, and finally in November to December 1799) to measure the levels of the isthmus, in difficult conditions due to Bedouin attacks and the lack of water. In the rain, he concluded that there was a 9 m difference between the levels of the Mediterranean and Red Sea, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paris
Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. Since the 17th century, Paris has been one of the world's major centres of finance, diplomacy, commerce, fashion, gastronomy, and science. For its leading role in the arts and sciences, as well as its very early system of street lighting, in the 19th century it became known as "the City of Light". Like London, prior to the Second World War, it was also sometimes called the capital of the world. The City of Paris is the centre of the Île-de-France region, or Paris Region, with an estimated population of 12,262,544 in 2019, or about 19% of the population of France, making the region France's primate city. The Paris Region had a GDP of €739 billion ($743 billion) in 2019, which is the highest in Europe. According to the Economist Intelli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Levelling
Levelling or leveling (American English; American and British English spelling differences#Doubled in British English, see spelling differences) is a branch of surveying, the object of which is to establish or verify or measure the height of specified points relative to a datum. It is widely used in geodesy and cartography to measure vertical position with respect to a vertical datum, and in construction to measure height differences of construction artifacts. Optical levelling Optical levelling, also known as spirit levelling and differential levelling, employs an ''optical level'', which consists of a precision telescope with crosshairs and stadia marks. The cross hairs are used to establish the level point on the target, and the stadia allow range-finding; stadia are usually at ratios of 100:1, in which case one metre between the stadia marks on the levelling staff represents 100metres from the target. The complete unit is normally mounted on a Tripod (surveying), tripod, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Civil Engineers
French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with France ** French cuisine, cooking traditions and practices Fortnite French places Arts and media * The French (band), a British rock band * "French" (episode), a live-action episode of ''The Super Mario Bros. Super Show!'' * ''Française'' (film), 2008 * French Stewart (born 1964), American actor Other uses * French (surname), a surname (including a list of people with the name) * French (tunic), a particular type of military jacket or tunic used in the Russian Empire and Soviet Union * French's, an American brand of mustard condiment * French catheter scale, a unit of measurement of diameter * French Defence, a chess opening * French kiss, a type of kiss involving the tongue See also * France (other) * Franch, a surname * French ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1841 Deaths
Events January–March * January 20 – Charles Elliot of the United Kingdom, and Qishan of the Qing dynasty, agree to the Convention of Chuenpi. * January 26 – Britain occupies Hong Kong. Later in the year, the first census of the island records a population of about 7,500. * January 27 – The active volcano Mount Erebus in Antarctica is discovered, and named by James Clark Ross. * January 28 – Ross discovers the "Victoria Barrier", later known as the Ross Ice Shelf. On the same voyage, he discovers the Ross Sea, Victoria Land and Mount Terror. * January 30 – A fire ruins and destroys two-thirds of the villa (modern-day city) of Mayagüez, Puerto Rico. * February 4 – First known reference to Groundhog Day in North America, in the diary of a James Morris. * February 10 – The Act of Union (''British North America Act'', 1840) is proclaimed in Canada. * February 11 – The two colonies of the Canadas are merged, into the United Province of Canada. * Febru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1763 Births
Events January–March * January 27 – The seat of colonial administration in the Viceroyalty of Brazil is moved from Salvador to Rio de Janeiro. * February 1 – The Royal Colony of North Carolina officially creates Mecklenburg County from the western portion of Anson County. The county is named for Queen Charlotte of Mecklenburg-Strelitz, who married George III of the United Kingdom in 1761. * February 10 – Seven Years' War – French and Indian War: The Treaty of Paris ends the war, and France cedes Canada (New France) to Great Britain. * February 15 – The Treaty of Hubertusburg puts an end to the Seven Years' War between Prussia and Austria, and their allies France and Russia. * February 23 – The Berbice Slave Uprising starts in the former Dutch colony of Berbice. * March 1 – Charles Townshend becomes President of the Board of Trade in the British government. April–June * April 6 – The Théâtre du Palais-R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Description De L'Égypte
The ''Description de l'Égypte'' ( en, Description of Egypt) was a series of publications, appearing first in 1809 and continuing until the final volume appeared in 1829, which aimed to comprehensively catalog all known aspects of ancient and modern Egypt as well as its natural history. It is the collaborative work of about 160 civilian scholars and scientists, known popularly as the savants, who accompanied Bonaparte's expedition to Egypt in 1798 to 1801 as part of the French Revolutionary Wars, as well as about 2000 artists and technicians, including 400 engravers, who would later compile it into a full work. At the time of its publication, it was the largest known published work in the world. The full title of the work is ''Description de l'Égypte, ou Recueil des observations et des recherches qui ont été faites en Égypte pendant l'expédition de l'armée française, publié par les orders de Sa Majesté l'Empereur Napoléon le Grand'' (English: ''Description of Egypt, o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paul-Adrien Bourdaloue
Paul Adrien Bourdaloue (4 January 1798, Bourges - 21 June 1868, Bourges) was a French civil engineer and topographer, who proposed the first orthometric levelling of France. Life Head of the Corps des Ponts et Chaussées, then engineer-resident of the Chemins de fer du Gard, from 1847 he carried out the levelling of the area of the future Suez Canal in Egypt at the request of the engineer Linant de Bellefonds. During this process he and others noted that the difference in levels between the Mediterranean and Red Sea was negligible, contrary to the conclusions of Bonaparte's engineers on the Egyptian Expedition such as Jacques-Marie Le Père. In 1857, he was commissioned to move onto the general levelling of mainland France. From 1857 to 1863, he laid out a network of 15,000 iron seals across France, providing the country's first level-lines. He was maire-adjoint of the town of Bourges. In 1865, he entrusted to the architect Albert Tissandier Albert Tissandier (1839 &nda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Sea
The Red Sea ( ar, البحر الأحمر - بحر القلزم, translit=Modern: al-Baḥr al-ʾAḥmar, Medieval: Baḥr al-Qulzum; or ; Coptic: ⲫⲓⲟⲙ ⲛ̀ϩⲁϩ ''Phiom Enhah'' or ⲫⲓⲟⲙ ⲛ̀ϣⲁⲣⲓ ''Phiom ǹšari''; Tigrinya: ቀይሕ ባሕሪ ''Qeyih Bahri''; ) is a seawater inlet of the Indian Ocean, lying between Africa and Asia. Its connection to the ocean is in the south, through the Bab el Mandeb strait and the Gulf of Aden. To its north lie the Sinai Peninsula, the Gulf of Aqaba, and the Gulf of Suez (leading to the Suez Canal). It is underlain by the Red Sea Rift, which is part of the Great Rift Valley. The Red Sea has a surface area of roughly 438,000 km2 (169,100 mi2), is about 2250 km (1398 mi) long, and — at its widest point — 355 km (220.6 mi) wide. It has an average depth of 490 m (1,608 ft), and in the central ''Suakin Trough'' it reaches its maximum depth of . The Red Sea also has exten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mediterranean
The Mediterranean Sea is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Western and Southern Europe and Anatolia, on the south by North Africa, and on the east by the Levant. The Sea has played a central role in the history of Western civilization. Geological evidence indicates that around 5.9 million years ago, the Mediterranean was cut off from the Atlantic and was partly or completely desiccated over a period of some 600,000 years during the Messinian salinity crisis before being refilled by the Zanclean flood about 5.3 million years ago. The Mediterranean Sea covers an area of about , representing 0.7% of the global ocean surface, but its connection to the Atlantic via the Strait of Gibraltar—the narrow strait that connects the Atlantic Ocean to the Mediterranean Sea and separates the Iberian Peninsula in Europe from Morocco in Africa—is only wide. The Mediterranean Sea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gratien Le Père
Gratien Le Père (Versailles, 2 June 1769 – Poitiers, 1 August 1826) was a French civil engineer. A former classmate of Bonaparte at Brienne, he became an engineer of 'Ponts et Chaussées' (bridges and roads). He and his brother Jacques-Marie Le Père both joined the French Campaign in Egypt and Syria The French campaign in Egypt and Syria (1798–1801) was Napoleon Bonaparte's campaign in the Ottoman territories of Egypt and Syria, proclaimed to defend French trade interests, to establish scientific enterprise in the region. It was the ... and were both leading lights in the programmes aimed at levelling the Suez Isthmus.Edouard de Villiers du Terrage, ''Journal et souvenirs sur l'expédition d'Égypte, mis en ordre et publiés par le baron Marc de Villiers du Terrage'', Paris, E. Plon, Nourrit, 1899, et ''L'expédition d'Égypte 1798–1801, Journal et souvenirs d'un jeune savant'', Paris, Cosmopole, 2001 et 2003, p. 371 References French civil engineers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Granville, Manche
Granville (; Norman: ''Graunville'') is a commune in the Manche department and region of Normandy, northwestern France. The chef-lieu of the canton of Granville and seat of the ', it is a seaside resort and health resort of Mont Saint-Michel Bay, at the end of the ', a former cod-fishing port and the first shellfish port of France. It is sometimes nicknamed "Monaco of the North" by virtue of its location on a rocky promontory. The town was founded by a vassal of William the Conqueror on land occupied by the Vikings in the 11th century. The old privateer city and fortification for the defence of Mont Saint-Michel became a seaside resort in the 19th century which was frequented by many artists and equipped with a golf course and a horse racing course. Home of the of industrialists, an important commune that absorbed the village of Saint-Nicolas-près-Granville in 1962, port and airport of South Manche, it has also been a Douzelage city since 1991, twinned with 20 European ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Institut D'Égypte
The Institut d'Égypte or Egyptian Scientific Institute is a learned society in Cairo specializing in Egyptology. It was established in 1798 by Napoleon Bonaparte to carry out research during his Egyptian campaign and is the oldest scientific institute in Egypt. The building in which it was housed was burnt down, with the loss of many documents, during the Arab Spring unrest of 2011. It reopened in December 2012. Early work The Institut d'Égypte was founded on 22 August 1798 by Napoleon Bonaparte for the Institut de France, their mission was "progress and the propagation of the Enlightenment in Egypt." The institute was organised into sections that cover all the topics of interest and study in mathematics, physics, political economy, literature and arts by the Commission des Sciences et des Arts. The society first met on 24 August 1798, with Gaspard Monge as president, Bonaparte himself as vice-president and Joseph Fourier and Louis Costaz, Costaz as secretaries. It had 48 sch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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