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Louis Dangeard
Louis Marie Bernard Dangeard (April 29, 1898 in Poitiers, France – April 15, 1987 in Paris, France) was a French geologist and oceanographer. He was son of the botanist and mycologist Pierre Augustin Dangeard. His brother was the botanist Pierre Dangeard. Louis Dangeard was one of the founders of modern oceanography. Biography Louis Dangeard was born on April 29, 1898 in Poitiers. He was the youngest of four siblings. His father had come from Caen in 1891 to take up a professorship at the ''Académie des Sciences'', the scientific faculty of the University of Poitiers. In 1909 the family moved to Paris, where his father had been offered a post at the prestigious scientific faculty of the University of Paris. Louis Dangeard studied geology in Paris and, in 1919 moved to the scientific faculty of the University of Rennes working as an academic assistant. In 1923 he was offered a permanent position and, in 1928, he was promoted to assistant professor. From 1922 to 1927 he took ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poitiers
Poitiers (, , , ; Poitevin: ''Poetàe'') is a city on the River Clain in west-central France. It is a commune and the capital of the Vienne department and the historical centre of Poitou. In 2017 it had a population of 88,291. Its agglomeration has 130,853 inhabitants in 2016 and is the center of an urban area of 261,795 inhabitants. With more than 29,000 students, Poitiers has been a major university city since the creation of its university in 1431, having hosted René Descartes, Joachim du Bellay and François Rabelais, among others. A city of art and history, still known as "''Ville aux cent clochers''" the centre of town is picturesque and its streets include predominantly historical architecture and half-timbered houses, especially religious architecture, mostly from the Romanesque period ; including notably the Saint-Jean baptistery (4th century), the hypogeum of the Dunes (7th century), the Notre-Dame-la-Grande church (12th century), the Saint-Porchaire church ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pourquoi Pas?
''Pourquoi-Pas'' or ''Pourquoi Pas?'' (from French ''pourquoi pas?'' 'why not?') may refer to one of these ships: * Four ships owned by the French navigator and naval officer Jean-Baptiste Charcot: ** , a cutter that Charcot had built in 1893 and in which he made a 2-week voyage in 1894. He sold her in 1896 to buy ''Pourquoi Pas ? II'' ** , the new name given by Charcot to a wooden schooner A schooner () is a type of sailing vessel defined by its rig: fore-and-aft rigged on all of two or more masts and, in the case of a two-masted schooner, the foremast generally being shorter than the mainmast. A common variant, the topsail schoon ... he bought in 1896, sold in 1897, and bought back in 1897; from 1897 he sailed her in British waters and in 1902 sailed towards Iceland, entering the Arctic Circle for the first time and approaching the glaciers ** , the new name given by Charcot to a iron schooner with a steam-engine he acquired in 1897 and in which he sailed down the Rive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1987 Deaths
File:1987 Events Collage.png, From top left, clockwise: The MS Herald of Free Enterprise capsizes after leaving the Port of Zeebrugge in Belgium, killing 193; Northwest Airlines Flight 255 crashes after takeoff from Detroit Metropolitan Airport, killing everyone except a little girl; The King's Cross fire kills 31 people after a fire under an escalator flashes-over; The MV Doña Paz sinks after colliding with an oil tanker, drowning almost 4,400 passengers and crew; Typhoon Nina strikes the Philippines; LOT Polish Airlines Flight 5055 crashes outside of Warsaw, taking the lives of all aboard; The USS Stark is struck by Iraqi Exocet missiles in the Persian Gulf; U.S. President Ronald Reagan gives a famous speech, demanding that Soviet leader Mikhail Gorbachev tears down the Berlin Wall., 300x300px, thumb rect 0 0 200 200 Zeebrugge disaster rect 200 0 400 200 Northwest Airlines Flight 255 rect 400 0 600 200 King's Cross fire rect 0 200 300 400 Tear down this wal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1898 Births
Events January–March * January 1 – New York City annexes land from surrounding counties, creating the City of Greater New York as the world's second largest. The city is geographically divided into five boroughs: Manhattan, Brooklyn, Queens, The Bronx and Staten Island. * January 13 – Novelist Émile Zola's open letter to the President of the French Republic on the Dreyfus affair, '' J'Accuse…!'', is published on the front page of the Paris daily newspaper '' L'Aurore'', accusing the government of wrongfully imprisoning Alfred Dreyfus and of antisemitism. * February 12 – The automobile belonging to Henry Lindfield of Brighton rolls out of control down a hill in Purley, London, England, and hits a tree; thus he becomes the world's first fatality from an automobile accident on a public highway. * February 15 – Spanish–American War: The USS ''Maine'' explodes and sinks in Havana Harbor, Cuba, for reasons never fully established, killing 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submarine Canyon
A submarine canyon is a steep-sided valley cut into the seabed of the continental slope, sometimes extending well onto the continental shelf, having nearly vertical walls, and occasionally having canyon wall heights of up to 5 km, from canyon floor to canyon rim, as with the Great Bahama Canyon. Just as above-sea-level canyons serve as channels for the flow of water across land, submarine canyons serve as channels for the flow of turbidity currents across the seafloor. Turbidity currents are flows of dense, sediment laden waters that are supplied by rivers, or generated on the seabed by storms, submarine landslides, earthquakes, and other soil disturbances. Turbidity currents travel down slope at great speed (as much as 70 km/h), eroding the continental slope and finally depositing sediment onto the abyssal plain, where the particles settle out.Continental Margin Sedimentation: From Sediment Transport to Sequence Stratigraphy (Special Publication 37 of the IAS) M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Société Géologique De France
Lactalis is a French multinational dairy products corporation, owned by the Besnier family and based in Laval, Mayenne, France. The company's former name was Besnier SA. Lactalis is the largest dairy products group in the world, and is the second largest food products group in France, behind Danone. It owns brands such as Parmalat, Président, Siggi's Dairy, Skånemejerier, Rachel's Organic, and Stonyfield Farm. History André Besnier started a small cheesemaking company in 1933 and launched its ''Président'' brand of Camembert in 1968. In 1990, it acquired Group Bridel (2,300 employees, 10 factories, fourth-largest French dairy group) with a presence in 60 countries. In 1992, it acquired United States cheese company Sorrento. In 1999, ''la société Besnier'' became ''le groupe Lactalis'' owned by Belgian holding company BSA International SA. In 2006, they bought Italian group Galbani, and in 2008, bought Swiss cheesemaker Baer. They bought Italian group Parmalat in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petrography
Petrography is a branch of petrology that focuses on detailed descriptions of rocks. Someone who studies petrography is called a petrographer. The mineral content and the textural relationships within the rock are described in detail. The classification of rocks is based on the information acquired during the petrographic analysis. Petrographic descriptions start with the field notes at the outcrop and include macroscopic description of hand specimens. The most important petrographer's tool is the petrographic microscope. The detailed analysis of minerals by optical mineralogy in thin section and the micro-texture and structure are critical to understanding the origin of the rock. Electron microprobe or atom probe tomography analysis of individual grains as well as whole rock chemical analysis by atomic absorption, X-ray fluorescence, and laser-induced breakdown spectroscopy are used in a modern petrographic lab. Individual mineral grains from a rock sample may also be an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sedimentology
Sedimentology encompasses the study of modern sediments such as sand, silt, and clay, and the processes that result in their formation (erosion and weathering), transport, deposition and diagenesis. Sedimentologists apply their understanding of modern processes to interpret geologic history through observations of sedimentary rocks and sedimentary structures. Sedimentary rocks cover up to 75% of the Earth's surface, record much of the Earth's history, and harbor the fossil record. Sedimentology is closely linked to stratigraphy, the study of the physical and temporal relationships between rock layers or strata. The premise that the processes affecting the earth today are the same as in the past is the basis for determining how sedimentary features in the rock record were formed. By comparing similar features today to features in the rock record—for example, by comparing modern sand dunes to dunes preserved in ancient aeolian sandstones—geologists reconstruct past environme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexandre Bigot (Geologist)
Alexandre Bigot (5 November 1862 – 27 April 1927) was a French ceramicist. He was primarily a ceramics manufacturer; producing the designs of many artists and architects of the French Art Nouveau movement; including: Jules Lavirotte, Hector Guimard, Louis Majorelle, Henri Sauvage, Henry van de Velde, Auguste Perret, Andre Arfvidson, Anatole de Baudot and more. Bigot was a physics and chemistry instructor who became interested in ceramics in 1889 after viewing Chinese porcelain at the Exposition Universelle in Paris. With his knowledge of chemistry, Bigot was able to create glazes with a large variety of colors and finishes.Turner 1996, p. 47-8 Bigot's firm was based at Rue des Petites Ecuries, Paris and he also created a ceramics factory in Mer in 1889 which employed as many as 150 people. Siegfried Bing, a German art dealer in Paris, displayed works by Bigot, among others, and was responsible for introducing the Art Nouveau style. Bigot’s Parisian firm closed in 191 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lower Normandy
Lower Normandy (french: Basse-Normandie, ; nrf, Basse-Normaundie) is a former administrative region of France. On 1 January 2016, Lower and Upper Normandy merged becoming one region called Normandy. Geography The region included three departments, Calvados, Manche and Orne, that cover the part of Normandy traditionally termed "Lower Normandy" lying west of the river Dives, the Pays d'Auge (except a small part remaining in Upper Normandy), a small part of the Pays d'Ouche (the main part remaining in Upper Normandy), the Norman Perche, and part of the "French" Perche. It covers 10,857 km2, 3.2 percent of the surface area of France.(Northcutt, 1996, p. 181) The traditional districts of Lower Normandy include the Cotentin Peninsula and La Hague, the Campagne de Caen, the Norman Bocage, the Bessin, and the Avranchin. History :''Regions relating to Lower Normandy: Gallia Lugdunensis, Neustria, and Normandy.'' The traditional province of Normandy, with an integral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thesis
A thesis ( : theses), or dissertation (abbreviated diss.), is a document submitted in support of candidature for an academic degree or professional qualification presenting the author's research and findings.International Standard ISO 7144: Documentation�Presentation of theses and similar documents International Organization for Standardization, Geneva, 1986. In some contexts, the word "thesis" or a cognate is used for part of a bachelor's or master's course, while "dissertation" is normally applied to a doctorate. This is the typical arrangement in American English. In other contexts, such as within most institutions of the United Kingdom and Republic of Ireland, the reverse is true. The term graduate thesis is sometimes used to refer to both master's theses and doctoral dissertations. The required complexity or quality of research of a thesis or dissertation can vary by country, university, or program, and the required minimum study period may thus vary significantly in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seabed
The seabed (also known as the seafloor, sea floor, ocean floor, and ocean bottom) is the bottom of the ocean. All floors of the ocean are known as 'seabeds'. The structure of the seabed of the global ocean is governed by plate tectonics. Most of the ocean is very deep, where the seabed is known as the abyssal plain. Seafloor spreading creates mid-ocean ridges along the center line of major ocean basins, where the seabed is slightly shallower than the surrounding abyssal plain. From the abyssal plain, the seabed slopes upward toward the continents and becomes, in order from deep to shallow, the continental rise, slope, and shelf. The depth within the seabed itself, such as the depth down through a sediment core, is known as the “depth below seafloor.” The ecological environment of the seabed and the deepest waters are collectively known, as a habitat for creatures, as the “ benthos.” Most of the seabed throughout the world's oceans is covered in layers of marine sedimen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
