Charles François du Fay Biography

Charles François du Fay

(Charles François de Cisternay du Fay; Paris, 1698-id., 1739) French physicist.He continued the investigations of Stephen Gray on the conduction of electricity and determined in 1733 the existence of two classes of electricity obtained by rubbing: resinous and vitreous, corresponding to what would later be called positive and negative electricity.He also distinguished between conductors and insulators and revealed the repulsion between electrically charged bodies of the same sign.He also conducted studies on crystalline optics.

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Alexandra Dionisevna Danílova Biography

Alexandra Dionisevna Danílova (Peterhof, 1904-Moscow, 1997) Russian dancer.Wife of G.Balanchine, she was one of the leading figures of Diaghilev's Russian Ballets and of the companies that inherited his style.Since 1950, he taught in the US.

Albert III Biography

Albert III (Grimma, 1443-Emden, 1500) Duke of Saxony (1464-1500).Son of the second elector of Saxony Federico II, he shared the duchy with his brother Ernesto (1464-1485) until 1485, the year in which he annexed the territories of Misnia and North Thuringia.

Clemens brentano Biography

Clemens Brentano (Clemens Maria Brentano; Ehrenbreitstein, 1778-Aschaffenburg, 1842) German narrator and playwright, member of the group of romantic writers devoted to the study of Germanic folklore and history and one of the teachers of romantic fantasy literature. Clemens Brentano (portrait of Emilie Linder, c.1837) Brother of the German writer Bettina Brentano, Clemens Brentano was the son of the merchant Antonio Pedro Brentano, of origin Italian, and of Maximiliana la Roche, loved in his youth by Goethe.He had an irregular education, singularly because of the changeable character of his sensitive soul and because of an extreme fantasy, peculiarities that made his whole life unstable. Again in Berlin, while he composed some of his most beautiful stories (among them, the Story of the brave Gaspar and the beautiful Anita ) and legendary tales (such as the Chronicle of a vagabond student ), he contemplated, grieving, the shipwreck of his existence.He had always been an impro...

Josef Anton Feuchtmayer Biography

Josef Anton Feuchtmayer (Linz, 1696-Mimmenhausen, 1770) German sculptor and stuffer.He showed a special predilection for elongated and elegant figures, and the poses and attitudes typical of dance.The decoration work of the Birnau church has been regarded as his masterpiece.

Zygmunt Felinski Biography

Zygmunt Felinski (Wojutyn, 1822-Krakow, 1895) Polish prelate.Archbishop of Warsaw (1862) and State Councilor, he fought to obtain grace from the Russian government for patriots deported to Siberia.Arrested in 1863, he was imprisoned for a long time in the Yaroslavl fortress.

Clément Ader Biography

Clément Ader (Muret, 1841-Toulouse, 1925) French aeronautical engineer.Already in his childhood he designed a large kite that could lift adult men off the ground.Ader was inventive, and in his youth he made a velocipede with rubber wheels and a balloon that he built during the Franco-Prussian War and that he gave to the city of Toulouse at the end of the war. In 1876 he left his job at the Administration des Ponts et Chaussées (Ministry of Bridges and Roads), he moved to Paris and devoted himself to communications.In 1880 he collaborated in the installation of the first private telephone line in the city, using components designed by him; one of them was the Théâtrophone , with which you could listen to opera from your own home.All of this brought him great income. Ader observed the flight of numerous species of birds and bats, which he captured and kept in facilities built in his own home.His purpose was to achieve a machine with a lifting force such that it counteracts that o...

Prehistory: How did the Paleolithic hunters and gatherers live?

In a previous article we already talked about Prehistory and specifically, about hunters and gatherers in the Paleolithic.We suggest you learn more about how these societies lived hundreds of thousands of years ago. Article index Prehistory: Paleolithic hunters and gatherers, how did they live? The prehistoric era encompassed the longest period of humanity, and in fact includes from the appearance of man until the first writings are given.We can say that the prehistory is divided between Neolotic, Paleolithic and stone age. Focusing on the paleolotico , the remains of paintings of the man who lived in the caves, has allowed us to know that these were mainly dedicated to hunting animals and also n collected. Adaptation to the Environment In order to carry out the collection, it was necessary to adapt to the environment that is the ability of man to obtain resources from the environment for the subsistence and growth of the society . The humans of the Paleo...

X-ray history

The X-rays were discovered in 1895 and from there they became a very revolutionary application in many branches of science, from astronomy to radiographs that we have not done so many times.the 120th anniversary of the X-rays knowing his inventor and the research that led him to such an important scientific advance. Article index Who invented the X-rays? The inventor or, rather, the person who discovered the X-rays was Wilhelm Conrad Rontgen , a German physicist who was focused on the field of electromagnetics Nothing else to present his discovery, Rontgen's theory received great attention from critics and public, and was translated into French, English or Russian. Although it is not a name as well known today as that of others you celebrate writers, the name of Wilhelm Conrad Rontgen is written in gold letters in the medical field, where he has had and has and numerous applications.The importance of his discovery was such in his day that he was the first Nobel Prize ...

Ibn abdelaziz al-Saud Fahd Biography

Ibn abdelaziz al-Saud Fahd (Riyad, present-day Saudi Arabia, 1923) Saudi monarch.Son of Ibn Saud, founder of the kingdom, and Hassa Sudairi, he was appointed Minister of Education in 1953, a position from which he established a system of public education.In 1962 he went on to occupy the portfolio of the Interior and in 1975 the monarch Khalid, his half-brother, appointed him crown prince, a rank that served him to de facto govern the country as of this date, although he was not crowned king until 1982.Ally With the United States, with whose oil companies he associated, he organized an anti-Soviet front in the Middle East, for which he helped economically the weakest states in the area.Even in spite of his moderate disposition, alien to all radicalism, he did not oppose the permanence of Wahhabism, a religious variant of a conservative court and defender of strict compliance with the Koranic laws.In 1990, after the Iraqi invasion of Kuwait and the outbreak of the Gulf War, he called ...

Celine dion Biography

Celine Dion (Charlemagne, Quebec, 1968) French-Canadian pop singer.She made her debut on stage when she was five years old, performing traditional Canadian songs, and at twelve she recorded her first demo.Her presentation was La voix du bon Dieu , in 1981, the year in which another work with Christmas songs also appeared.During the eighties she published several records in French, and in 1988 she won the Eurovision Song Contest representing France. 1990 was the year of release of their first album in English, Unison , which contained the singles "(If there was) any other way" and "Where does my heart beat now ".Two years later he released the album Celine Dion , which included the title track (Oscar and Grammy winner) from the movie Beauty and the Beast , one of the Walt Disney's most successful empire productions in which Celine sang in duet with American vocalist Peabo Bryson. Celine Dion Despite her triumph in the Anglo-Saxon market, she did not ...

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