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Henri Hureau De Sénarmont
Henri Hureau de Sénarmont () (6 September 1808 – 30 June 1862) was a French mineralogist and physicist. He was born in Broué, Eure-et-Loir. From 1822 to 1826, he studied at the École Polytechnique in Paris, then furthered his education at the École des Mines. During the course of his career, he became engineer-in-chief of mining, mines, and professor of mineralogy and director of studies at the École des Mines in Paris.Henri Hureau de Sénarmont biography at Molecular Expressions, ''micro.magnet.fsu.edu'', accessed 3 June 2023 Sénarmont was distinguished for his research on Polarization (waves), polarization and demonstrating the anisotropy of heat diffusion in a crystal, and on the artificial formation of minerals. A polarized light retardation compensator known as a "Sénarmont prism, Sénarmont p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Broué
Broué () is a commune in the Eure-et-Loir department in northern France. Population See also *Communes of the Eure-et-Loir department The following is a list of the 363 communes of the Eure-et-Loir department of France. The communes cooperate in the following intercommunalities (as of 2025):Communes of Eure-et-Loir {{EureLoir-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology
Geology (). is a branch of natural science concerned with the Earth and other astronomical objects, the rocks of which they are composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology. It is integrated with Earth system science and planetary science. Geology describes the structure of the Earth on and beneath its surface and the processes that have shaped that structure. Geologists study the mineralogical composition of rocks in order to get insight into their history of formation. Geology determines the relative ages of rocks found at a given location; geochemistry (a branch of geology) determines their absolute ages. By combining various petrological, crystallographic, and paleontological tools, geologists are able to chronicle the geological history of the Earth as a whole. One aspect is to demonstrate the age of the Earth. Geology provides evidence for plate tectonics, the ev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Members Of The French Academy Of Sciences
Member may refer to: * Military jury, referred to as "Members" in military jargon * Element (mathematics), an object that belongs to a mathematical set * In object-oriented programming, a member of a class ** Field (computer science) In data hierarchy, a field (data field) is a Variable (computer science), variable in a record (computer science), record. A record, also known as a data structure, allows logically related data to be identified by a single name. Identifying relate ..., entries in a database ** Member variable, a variable that is associated with a specific object * Limb (anatomy), an appendage of the human or animal body ** Euphemism for penis * Structural component of a truss, connected by nodes * User (computing), a person making use of a computing service, especially on the Internet * Member (geology), a component of a geological formation * Member of parliament * The Members, a British punk rock band * Meronymy, a semantic relationship in linguistics * C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1862 Deaths
Events January * January 1 – The United Kingdom annexes Lagos Island, in modern-day Nigeria. * January 6 – Second French intervention in Mexico, French intervention in Mexico: Second French Empire, French, Spanish and British forces arrive in Veracruz, Mexico. * January 16 – Hartley Colliery disaster in north-east England: 204 men are trapped and die underground when the only shaft becomes blocked. * January 30 – American Civil War: The first U.S. ironclad warship, , is launched in Brooklyn. * January 31 – Alvan Graham Clark makes the first observation of Sirius B, a white dwarf star, through an eighteen-inch telescope at Northwestern University in Illinois. February * February 1 – American Civil War: Julia Ward Howe's "Battle Hymn of the Republic" is published for the first time in the ''Atlantic Monthly''. * February 2 – The Dun Mountain Railway, first railway is opened in New Zealand, by the Dun Mountain Copper Mining Compan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1808 Births
Events January–March * January 1 ** The importation of slaves into the United States is formally banned, as the 1807 Act Prohibiting Importation of Slaves takes effect. However Americans still continue the slave trade by transporting Africans to Cuba and Brazil.. ** Sierra Leone becomes a British Crown Colony. * January 22 – Transfer of the Portuguese court to Brazil: John (Dom João), Prince Regent, and the Braganza royal family of Portugal arrive in their colony of Brazil in exile from the French occupation of their home kingdom. * January 26 – Rum Rebellion: On the 20th anniversary of the foundation of the colony of New South Wales, disgruntled military officers of the New South Wales Corps (the "Rum Corps") overthrow and imprison Governor William Bligh and seize control of the colony. * February 2 – French troops take Rome as part of the Napoleonic Wars. * February 6 – The ship '' Topaz'' (from Boston April 5, 1807, hunting seals) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Mineralogists
French may refer to: * Something of, from, or related to France ** French language, which originated in France ** French people, a nation and ethnic group ** French cuisine, cooking traditions and practices 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), a 2008 film * French Stewart (born 1964), American actor Other uses * French (surname), a surname (including a list of people with the name) * French (tunic), a type of military jacket or tunic * French's, an American brand of mustard condiment * French (catheter scale), a unit of measurement * French Defence, a chess opening * French kiss, a type of kiss See also * France (other) * Franch, a surname * French Revolution (other) * French River (other), several rivers and other places * Frenching (other) Frenching may refer to: * Frenching (automobile), recessing or moul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
19th-century French Geologists
The 19th century began on 1 January 1801 (represented by the Roman numerals MDCCCI), and ended on 31 December 1900 (MCM). It was the 9th century of the 2nd millennium. It 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, expanded beyond its British homeland for the first time during the 19th century, particularly remaking the economies and societies of the Low Countries, France, 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 Catholic Church, in response to the growing influence and power of modernism, secularism and materialism, formed the First Vatican Council in the late 19th century to deal with such problems and confirm ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physical Crystallography Before X-rays
Physical crystallography before X-rays describes how physical crystallography developed as a science up to the discovery of X-rays by Wilhelm Conrad Röntgen in 1895. In the period before X-rays, crystallography can be divided into three broad areas: geometric crystallography culminating in the discovery of the 230 space groups in 1891–4, chemical crystallography and physical crystallography. Physical crystallography is concerned with the Mineralogy#Physical properties, physical properties of crystals, such as their Crystal optics, optical, electrical, and magnetic properties. The effect of electromagnetic radiation on crystals is covered in the following sections: #Double refraction, double refraction, #Rotary polarization, rotary polarization, #Conical refraction, conical refraction, #Absorption and pleochroism, absorption and pleochroism, #Luminescence, fluorescence and phosphorescence, luminescence, fluorescence and phosphorescence, #Reflection from opaque materials, reflecti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Augustin Fresnel
Augustin-Jean Fresnel (10 May 1788 – 14 July 1827) was a French civil engineer and physicist whose research in optics led to the almost unanimous acceptance of the wave theory of light, excluding any remnant of Isaac Newton, Newton's corpuscular theory of light, corpuscular theory, from the late 1830s until the end of the 19th century. He is perhaps better known for inventing the Catadioptric system, catadioptric (reflective/refractive) Fresnel lens and for pioneering the use of "stepped" lenses to extend the visibility of lighthouses, saving countless lives at sea. The simpler Dioptrics, dioptric (purely refractive) stepped lens, first proposed by Georges-Louis Leclerc, Comte de Buffon, Count Buffon and independently reinvented by Fresnel, is used in screen magnifying glass, magnifiers and in condenser lenses for overhead projectors. By expressing Christiaan Huygens, Huygens's principle of secondary waves and Thomas Young (scientist), Young's principle of interference ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seine-et-Oise
Seine-et-Oise () is a former department of France, which encompassed the western, northern and southern parts of the metropolitan area of Paris. Its prefecture was Versailles and its administrative number was 78. Seine-et-Oise was disbanded in 1968 as part of the reorganisation of the departments of the Paris metropolitan area. The newly created Yvelines department inherited the 78 number. General characteristics Seine-et-Oise was created on 4 March 1790 during the French Revolution. Its name comes from the two main rivers ( Seine River and Oise River) flowing through it. It completely surrounded the Seine department (which included Paris itself), although it was at its narrowest just east of Seine between that department and the Seine-et-Marne department, which still exists today. At the time of its abolition in 1968, Seine-et-Oise consisted of 688 suburban and rural communes. It had an area of 5,658 km2 (2,184 sq. miles). The division of Seine-et-Oise into arrondisse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seine-et-Marne
Seine-et-Marne () is a department in the Île-de-France region in Northern France. Named after the rivers Seine and Marne, it is the region's largest department with an area of 5,915 square kilometres (2,284 square miles); it roughly covers its eastern half. In 2019, it had a population of 1,421,197.Populations légales 2019: 77 Seine-et-Marne INSEE Its is Melun, although both Meaux and [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
