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Charles Athanase Walckenaer
Baron Charles Athanase Walckenaer (25 December 1771 – 28 April 1852) was a French civil servant and scientist. Biography Walckenaer was born in Paris and studied at the universities of Oxford and Glasgow. In 1793 he was appointed head of the military transports in the Pyrenees, after which he pursued technical studies at the École Nationale des Ponts et Chaussées and the École polytechnique. He was elected member of the Institut de France in 1813, was mayor (''maire'') in the 5th arrondissement in Paris and secretary-general of the prefect of the Seine 1816–1825. He was made a baron in 1823. In 1839 he was appointed conservator for the Department of Maps at the Royal Library in Paris and in 1840 secretary for life in the Académie des Inscriptions et Belles Lettres. He was one of the founders of the Société entomologique de France in 1832, and a "resident member" of the Société des observateurs de l'homme. Walckenaer introduced the full biography according to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bibliothèque Nationale De France
The Bibliothèque nationale de France (, 'National Library of France'; BnF) is the national library of France, located in Paris on two main sites known respectively as ''Richelieu'' and ''François-Mitterrand''. It is the national repository of all that is published in France. Some of its extensive collections, including books and manuscripts but also precious objects and artworks, are on display at the BnF Museum (formerly known as the ) on the Richelieu site. The National Library of France is a public establishment under the supervision of the Ministry of Culture. Its mission is to constitute collections, especially the copies of works published in France that must, by law, be deposited there, conserve them, and make them available to the public. It produces a reference catalogue, cooperates with other national and international establishments, and participates in research programs. History The National Library of France traces its origin to the royal library founded at t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Académie Des Inscriptions Et Belles Lettres
An academy (Attic Greek: Ἀκαδήμεια; Koine Greek Ἀκαδημία) is an institution of secondary or tertiary higher learning (and generally also research or honorary membership). The name traces back to Plato's school of philosophy, founded approximately 385 BC at Akademia, a sanctuary of Athena, the goddess of wisdom and skill, north of Athens, Greece. Etymology The word comes from the ''Academy'' in ancient Greece, which derives from the Athenian hero, ''Akademos''. Outside the city walls of Athens, the gymnasium was made famous by Plato as a center of learning. The sacred space, dedicated to the goddess of wisdom, Athena, had formerly been an olive grove, hence the expression "the groves of Academe". In these gardens, the philosopher Plato conversed with followers. Plato developed his sessions into a method of teaching philosophy and in 387 BC, established what is known today as the Old Academy. By extension, ''academia'' has come to mean the accumulation, dev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1852 Deaths
Year 185 ( CLXXXV) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Lascivius and Atilius (or, less frequently, year 938 ''Ab urbe condita''). The denomination 185 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Nobles of Britain demand that Emperor Commodus rescind all power given to Tigidius Perennis, who is eventually executed. * Publius Helvius Pertinax is made governor of Britain and quells a mutiny of the British Roman legions who wanted him to become emperor. The disgruntled usurpers go on to attempt to assassinate the governor. * Tigidius Perennis, his family and many others are executed for conspiring against Commodus. * Commodus drains Rome's treasury to put on gladiatorial spectacles and confiscates property to sup ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1771 Births
Events January– March * January 5 – The Great Kalmyk (Torghut) Migration is led by Ubashi Khan, from the east bank of the Lower Volga River back to the homeland of Dzungaria, at this time under Qing Dynasty rule. * January 9 – Emperor Go-Momozono accedes to the throne of Japan, following his aunt's abdication. * February 12 – Upon the death of Adolf Frederick, he is succeeded as King of Sweden by his son Gustav III. At the time, however, Gustav is unaware of this, since he is abroad in Paris. The news of his father's death reaches him about a month later. * March – War of the Regulation: North Carolina Governor William Tryon raises a militia, to put down the long-running uprising of backcountry militias against North Carolina's colonial government. * March 12 – The North Carolina General Assembly establishes Wake County (named for Margaret Wake, the wife of North Carolina Royal Governor William Tryon) from portions of Cumberland, J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclosa Turbinata
''Cyclosa turbinata'' is a species of orb weaver belonging to the family of spiders known as Araneidae. It is found in a range from the United States to Panama, West Indies, Galapagos Islands, and has been introduced into Hawaii. Geographic Location The spider is native to the continental United States, and Mexico, but has been introduced and found in places across Hawaii, the Caribbean, Middle, and South America, the Galapagos Islands, and even Oceania. Its large geographic range is likely due to its ability to travel through the wind using its silk to catch the current. Five species of ''Cyclosa'' occur in the continental United States. Etymology The specific name is derived from the Latin word ''turbo'', meaning Top, spinning top, in reference to the spider's top-shaped body and its wheel-shaped webs. Description ''Cyclosa turbinata'' is a relatively small species with sizes about 4– 7 mm in length. Their color is a mix of browns, blacks, and whites, and their ab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclosa
''Cyclosa'', also called trashline orbweavers, is a genus of orb-weaver spiders first described by Anton Menge in 1866. Widely distributed worldwide, spiders of the genus ''Cyclosa'' build relatively small orb webs with a web decoration. The web decoration in ''Cyclosa'' spiders is often linear and includes prey remains and other debris, which probably serve to camouflage the spider. The name "Cyclosa" comes from Greek 'to move in a circle', referring to how it spins its web. While most orb-web spiders face downwards in their web when waiting for prey, some ''Cyclosa'' species (e.g. ''C. ginnaga'' and ''C. argenteoalba'') face upwards. Notable members ''Cyclosa argenteoalba'' '' Cyclosa argenteoalba'' builds two types of web, a traditional sticky spider web, and a resting web that consists of just a few strands. When infected with a larva of the wasp '' Reclinervellus nielseni'', the spider switches on the behavior to build a resting web. The larva then eats the spider and uses ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latrodectus Mactans
''Latrodectus mactans'', known as southern black widow or simply black widow, and the shoe-button spider, is a venomous species of spider in the genus ''Latrodectus''. The females are well known for their distinctive black and red coloring and for the fact that they will occasionally eat their mates after reproduction. The species is native to North America. The venom can cause pain and other symptoms, but is rarely fatal to healthy humans. Taxonomy ''Latrodectus mactans'' was first described by Johan Christian Fabricius in 1775, placing it in the genus '' Aranea''. It was transferred to the genus ''Latrodectus'' in 1837 by Charles Walckenaer and is currently placed in the family Theridiidae of the order Araneae. The species is closely related to ''Latrodectus hesperus'' (western black widow) and ''Latrodectus variolus'' (northern black widow). Members of the three species are often confused with the genus '' Steatoda'', the false widows. Prior to 1970, when the current taxonomi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paul Gervais
Paul Gervais full name François Louis Paul Gervais (26 September 1816 – 10 February 1879) was a French palaeontologist and entomologist. Biography Gervais was born in Paris, where he obtained the diplomas of doctor of science and of medicine, and in 1835 he began palaeontological research as assistant in the laboratory of comparative anatomy at the ''Muséum national d'Histoire naturelle''. In 1841 he obtained the chair of zoology and comparative anatomy at the Faculty of Sciences in Montpellier, of which he was in 1856 appointed dean. In 1848–1852 appeared his important work ''Zoologie et paléontologie françaises'', supplementary to the palaeontological publications of Georges Cuvier and Henri Marie Ducrotay de Blainville; of this a second and greatly improved edition was issued in 1859. In 1865 he accepted the professorship of zoology at the Sorbonne, vacant through the death of Louis Pierre Gratiolet; this post he left in 1868 for the chair of comparative anatomy at the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arachnologist
Arachnology is the scientific study of arachnids, which comprise spiders and related invertebrates such as scorpions, pseudoscorpions, and harvestmen. Those who study spiders and other arachnids are arachnologists. More narrowly, the study of spiders alone ( order Araneae) is known as araneology. The word "arachnology" derives from Greek , ''arachnē'', "spider"; and , ''-logia'', "the study of a particular subject". Arachnology as a science Arachnologists are primarily responsible for classifying arachnids and studying aspects of their biology. In the popular imagination, they are sometimes referred to as spider experts. Disciplines within arachnology include naming species and determining their evolutionary relationships to one another (taxonomy and systematics), studying how they interact with other members of their species and/or their environment (behavioural ecology), or how they are distributed in different regions and habitats (faunistics). Other arachnologists perform ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Entomologist
Entomology () is the scientific study of insects, a branch of zoology. In the past the term "insect" was less specific, and historically the definition of entomology would also include the study of animals in other arthropod groups, such as arachnids, myriapods, and crustaceans. This wider meaning may still be encountered in informal use. Like several of the other fields that are categorized within zoology, entomology is a taxon-based category; any form of scientific study in which there is a focus on insect-related inquiries is, by definition, entomology. Entomology therefore overlaps with a cross-section of topics as diverse as molecular genetics, behavior, neuroscience, biomechanics, biochemistry, systematics, physiology, developmental biology, ecology, morphology, and paleontology. Over 1.3 million insect species have been described, more than two-thirds of all known species. Some insect species date back to around 400 million years ago. They have many kinds of intera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Map Of Juan De La Cosa
The map of Juan de la Cosa is a world map that includes the earliest known representation of the New World and the first depiction of the equator and the Tropic of Cancer on a nautical chart. The map is attributed to the Castilian navigator and cartographer, Juan de la Cosa, and was likely created in 1500. Description Juan de la Cosa's map is a manuscript nautical chart of the world drawn on two joined sheets of parchment sewn onto a canvas backing. It measures 96 cm high by 183 cm wide. A legend written in Spanish at the western edge of the map translates as "Juan de la Cosa made this (map) in the port of Santa Maria in the year 1500". The overall style is similar to other contemporary charts of the Mediterranean, especially maps produced in Majorca, an important center of map making at the time. The map is an assemblage of two different charts, one covering the Old World and the Atlantic as far west as the Azores and the other representing the New World. The New World is colo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean De La Bruyère
Jean de La Bruyère (, , ; 16 August 1645 – 11 May 1696) was a French philosopher and moralist, who was noted for his satire. Early years Jean de La Bruyère was born in Paris, in today's Essonne ''département'', in 1645. His family was middle class, and his reference to a certain "Geoffroy de La Bruyère", a crusader, is only a satirical illustration of a method of self-ennoblement then common in France, as in some other countries. Indeed, he always signed his surname as Delabruyère in one word, as evidence of this disdain. La Bruyère could trace his family back on his father's side at least as far as his great-grandfather, who along with his grandfather had been dedicated members of the Catholic League. His great-grandfather had been exiled from France when Henri IV came to the throne and Catholics fell into disfavor. La Bruyère's father also had been active in the league under the Duke of Guise in 1584. His father was controller general of finance to the Hôtel de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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