Guillaume de l’Hôpital Biography

Guillaume de l'Hôpital

(Guillaume de l'Hôpital, Marquis de Sainte-Mesme; Paris, 1661- id ., 1704) French mathematician.A military man by profession, he became interested in the study of mathematics under the influence of Bernoulli and carried out the first complete exposition of the infinitesimal calculus in his work Analysis of the infinitely small for the understanding of curved lines ( 1696).The L'Hôpital rule allows to eliminate certain indeterminacies in the passage to the limit of the quotient of two functions, applying the differential calculus.

Comments

Carmen balcells Biography

Carmen Balcells (Santa Fe de Segarra, Lleida, 1930-Barcelona, 2015) Spanish literary agent who with her innovative management radically modified the market for hiring, promoting and publishing books in the Spanish language. Carmen Balcells Born into a family of rural owners, she studied business expertise and at the age of twenty-four she settled in Barcelona with her family, where she worked as a secretary until that her friend Joaquim Sabrià recommended her to the exiled Romanian writer Vintila Horia, owner of the literary agency ACER, administrator of foreign authors for Spain. In this agency he began to work as a correspondent until, in 1960, Vintila Horia won the Goncourt Prize and moved to Paris.Carmen Balcells then decided to establish herself on her own: she founded her own literary agency in the rental apartment where she lived, and in a few years she revolutionized the international map of publishing.Meanwhile, in 1961 she had married Luis Palomares, with whom she ...

Agustin Lara Biography

Agustín Lara (Agustín Lara Aguirre y Pino; Tlacotalpán, México, 1897-Mexico City, 1970) Composer of Mexican melodic song.Due to his self-taught training, his prolific production and his undeniable success, Agustín Lara has been considered on numerous occasions as the Irving Berlin of Mexican song. Agustín Lara Known as El Flaco de Oro, there are countless songs composed by this musician who have gained an everlasting fame: Granada (immortalized by the tenor Mario Lanza), the chotis Madrid , Creole Night , La Cumbancha , Noche de ronda , Only once , Palmera or María bonita (written for his wife, actress María Félix) are just some of the most famous. Adapted to numerous languages and sung in the most different styles, the success of these songs in the Old and New World won their author the highest honors and general recognition.Along with melodic song, Lara also excelled at composing film music; His is, for example, the score for Santa , one of the first sound film...

Giacomo Jaquerio Biography

Giacomo Jaquerio (Turin, c .1375-?, 1453) Italian painter.He was the most important of the active artists in the Duchy of Savoy during the first half of the s.XV.While his work may focus on international Gothic, it did not actually conform to the dominant trend in Lombardy of his time, but instead embraced the realism of Burgundian artists.Most of his work is located in the Abbey of San Antonio (Raverso), the fruit of a remarkable career that exerted great influence in Piedmont.

Camilo Ponce Enriquez Biography

Camilo Ponce Enríquez (Quito, 1912-1976) Ecuadorian politician, lawyer and leader of the conservative party.He was President of the Republic during the constitutional period of 1956-1960, the first conservative after 64 years of liberal, prosocialist and populist regimes. Camilo Ponce Enríquez After completing his first studies at the San Gabriel school, run by the Jesuits of Quito, Camilo Ponce Enríquez followed higher studies at the Central University of Ecuador in the same city, and complemented them at the University of Santiago de Chile, where in 1938 he obtained the title of lawyer.Later he also did a doctorate in law from the University of Southern (California).He was a founding member of the Ecuadorian Democratic Alliance (ADE). He also founded the newspapers Democracia (1942) and El Heraldo (1945), and the journalistic company Unión Católica S.A.(1949).In 1952 he organized the Christian Social Movement, which would later become a political party.He held the chair ...

The history and origin of the Earth

The planet Earth 4.5 billion years ago was a mass of clustered rocks whose core melted the planet.Over time it dried and cooled to form a crust solid and consistent.After a long cooling process, the formation of gases and the interaction with the air is the atmosphere . Index of the article Formation of the solar system The scientific studies confirm that it does around of 13.8 billion years there was a big explosion that they called Big Bang .The exorbitant force that was unleashed dispersed all the matter that was in all possible directions at speeds too exorbitant.As time went by, they moved away from the place of the explosion and slowed down.The nearby matter stayed for p roast to be what are now the galaxies . In the immediate vicinity of the limit of our galaxy is the Via Lactea. These fractions of matter were condensed in a dense cloud about 5,000 million years ago.All this matter was constituting a huge mass thanks to gravitational forces, until a sphere ...

Tibet - History and Culture of Tibet in the 20th century

As we said in the previous article when we talked about the new Chinese repression in the Tibet , this region has lived through centuries of continuous invasions that have only served to obscure its memory and slowly exterminate its culture. The first Mongols, the English, the Indians and the Chinese , have razed their lands, devastating an already poor population in itself, and the monasteries and the Tibetans themselves are suffering the end of their pure race, because by their blood they already run the traces of the different empires that have dominated it to the point that two thirds of their population is Chinese. Little Tibet is known before the tenth century.Perhaps it was in those centuries when this region could be considered totally independent.But it was in the eleventh century II when they suffered their first invasion: that of the Mongol Empire .While it is true that during the centuries that the Mongol Empire dominated Tibet, the country's government enjo...

Biography of Miguel Hidalgo: the General of the Independence of Mexico

In our previous article we have seen how Hidalgo transformed from priest into revolutionary .After the Scream of Sorrows , Hidalgo will become one of the leaders of the revolutionary movement. From Dolores they set out with their followers to San Miguel el Grande , swelling its ranks with peasants, army officers and indigenous people.When passing through Atotonilco , priest Hidalgo took the image of Our Lady of Guadalupe , and constituted it as a banner of the independence army . On September 22, Hidalgo was named General being the supreme command of a army of more than 50 thousand men.In his military campaign he took the city of Guanajuato .Then he advanced by Maravatio, Tepetongo, Hacienda de la Jorn ada, Ixtlahuaca and Toluca .On October 30 he confronts the realistic forces on the Mount of Crosses and defeats them. But some adverse factors led to that Hidalgo did not attack the city of Mexico , but that the army was placed outside the capital,...

The Mayan Religion

The Mayans inhabited Central America in the centuries before the Conquest of America, developing a highly evolved civilization.In it, religious beliefs played an essential role that we will talk about in the next article.In About History we talk to you now of the Mayan Religion . The Mayan religionThe Mayan calendarsThe Mayan ceremoniesOther entities in the Mayan religionVideo of the Mayan religion The Mayan religion : The religion of the Mayan culture was characterized basically for the passing of life around infinite cycles of the universe .that way, it will be possible to be noticed that the Mayan religion finds its roots in time, being this diagrammed by means of diverse systems of calendars based on different patterns, dividing the life cycles of the Mayan culture . The Mayas believed that the world had been created five times and destroyed four times , this being the basis of the Mesoamerican religious culture that spread from the year 900 onwards, later a...

Isaac II Angelo Biography

Isaac II Angelo (Isaac II Angelo or the Angel;?, 1155-Constantinople, 1204).Emperor of Byzantium (1185-1195 and 1203-1204).He was the first representative of the Angel dynasty.During his years of reign he overcame the many complications that arose, but despite his ability as a ruler, at his death, the Empire was more weakened, mainly due to the problems in the Balkans. Son From Andronicus the Angel, he occupied the throne of Byzantium on September 12, 1185, after a revolution dethroned Alexius I Komnenos, the last of the Komnenos emperors.It was the harshness of the rule of Alexios and the fear of the Normans, who had recently conquered Thessalonica, the causes that elevated the Angels to the imperial throne. Isaac II Angelo and his son Alexius IV The same year as Isaac's coronation, his leader, Alexius Dranas, defeated Norman William II and he put to flight the Norman army that was heading towards Constantinople.After expelling the Normans in the Balkans, an insurrection ...

André Jolivet Biography

André Jolivet (Paris, 1905-1974) French composer and conductor.He was initially a school teacher, a profession he abandoned to dedicate himself to music.He worked with two teachers whose influence would mark him deeply: Paul Le Flem and Edgar Varèse.From the first he learned harmony, while Varèse knew how to transmit a certain indescribable alchemy to better appreciate the sounds. André Jolivet He was part of the group "Jeune France 1936", and at the end of the Second World War he was appointed musical director of the Comédie Française , a position he held from 1945 to 1959.Later (1966-1970) he was professor of composition at the Paris Conservatory.

History Today Online

Search This Blog