Georg bredig Biography

Georg Bredig

(Glogau, 1868-New York, 1944) German chemist.Professor at the Universities of Heidelberg and Zurich.Mainly devoted to chemical physics, he studied the behavior of colloids and catalysis phenomena, as well as the speed of chemical reactions.His work The chemistry of extreme temperatures is interesting.

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Joseph Farcot Biography

Joseph Farcot (Paris, 1823-Saint-Ouen, 1906) French engineer.He added numerous improvements to the steam engines, including a steam generator with a tube bundle and mobile hearth, and a servomotor.

Antonio Ricardos Biography

Antonio Ricardos (Barbastro, Spain, 1727-Madrid, 1794) Spanish military.Antonio Ricardos took part in the Italian campaigns of the War of the Austrian Succession, in which he achieved some renown. Antonio Ricardos (detail of a portrait of Goya) Close to the ideas of the Enlightenment, he dedicated a good part of his activity to the reorganization of the army, for which studied the Prussian model.Later, he applied his experience in various reforms both in Spain and in America and founded, in 1773, the Academia de Ocaña, from where he carried out, as inspector general, the restructuring of the cavalry. A member of the "Aragonese party", his career at court followed in the wake of the Count of Aranda and, consequently, he faced the Count of Floridablanca.In 1778 he was exiled to Guipúzcoa, accused by the Inquisition.After being rehabilitated, he directed the operations against France as captain general of Catalonia, in which again in 1793 he proved his worth as a strate

George szell Biography

George Szell (Budapest, 1897-Cleveland, 1970) Hungarian American pianist, composer and conductor.A child prodigy, he gave his first concert at the young age of ten with the Vienna Symphony Orchestra.He studied in Vienna under Richard Robert, Eusebius Mandyczewski and Karl Prohaska, and in Leipzig under Max Reger. At age 17 he conducted the Berlin Philharmonic Orchestra in a performance in which one of his symphonic poems, Till Eulenspiegel , was performed.Richard Strauss took him to the Berlin Opera as his assistant; He stayed there between 1914 and 1917, when Strauss recommended Szell to succeed Otto Klemperer as the first conductor of the Strasbourg opera; He held this position from 1917 to 1919. Subsequently, Szell was director in various centers, such as the German Theater in Prague, between 1919 and 1921, the Berlin Broadcastin Company, between 1921 and 1929, Darmstadt between 1921 and 1922, and Düsseldorf, where he was from 1922 to 1924; later he was appointed principal c

Fray Antonio de Guevara Biography

Fray Antonio de Guevara (Treceño ?, Spain, 1480-Mondoñedo, id., 1545) Spanish writer.Belonging to the Franciscan order since 1504, in 1521 Carlos V appointed him chaplain and court historian, with the task of writing the chronicle of the monarch.Two years later he was appointed inquisitor, in 1528 bishop of Guadix and in 1537, of Mondoñedo. Fray Antonio de Guevara Fray Antonio de Guevara published his Golden Book of Emperor Marco Aurelio (1528) clandestinely in Seville, which It was intended to be a proposal to the Emperor Charles V on the monarch model.A year later, this work became a doctrinal book and exemplary of the perfect way of ruling, and was translated into several languages. Despite what it may seem (due to the analogy with Machiavelli), Antonio de Guevara can be considered a still very medieval author and reluctant to the changes and innovations introduced by Renaissance humanism, as described He concludes from reading works such as Family Epistles (1539-1542)

Cleopatra: The Queen of Ancient Egypt

Few civilizations and cultures have unleashed interest throughout history as well as Ancient Egypt.Within that time and that place, few queens have covered as many pages as the Queen of Egypt par excellence, Cleopatra. It was a woman with a great sense of state, who used not only her beauty, but also her intelligence to try to save a kingdom that had long been mortally wounded. Cleopatra: The Queen of Ancient Egypt , intends to publicize the figure of this impressive woman, advanced in her time and often little known. Today we want to talk in depth about who Cleopatra really was.You will have seen a lot about her in movies, series or other pieces of culture.But very few really know how this woman was. Article index Who was Cleopatra The first thing to know about Cleopatra is who she was.As headline we can say that She was the youngest queen in Egypt. She acceded to the throne at age 18, already having a culture and education broader than that of most people of her gene

Maya numbering system and Mayan numbers

The Mayans have been a very advanced and full-culture people, undoubtedly one of the great world civilizations.One of the highlights of the Mayas was their breakthrough in mathematics.we will tell you how it was his fascinating numbering system and how the Mayan numbers are written.Next in History Today Online, the Mayan Numbering System and the Mayan numbers. Located mainly in the southern territory of Mexico and Guatemala , the Mayas were a town of great importance for the history of America , and the world in general.They have developed a very rich culture in different environments, such as architecture, astronomy a, and especially in mathematics.His number system , developed independently from the rest of the world was very advanced and complex.So much so that they even had the notion of Zero , something that to Europe, for example, just arrived from the hand of the Hindus. Index of the article The numbering system of the Maya The writing system of this ci

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.

Gaston bachelard Biography

Gaston Bachelard (Bar-sur-Aube, 1884-Paris, 1962) French philosopher.He was a professor at the Sorbonne (1940-1954) and specialized in epistemology ( The formation of the scientific spirit , 1938).He also studied poetic imagination in relation to the four elements, in works such as Psychoanalysis of Fire (1938), Water and Dreams (1941) and Poetics of space (1957). Gaston Bachelard Gaston Bachelard received his doctorate in exact sciences in 1912 and, after being employed post and telegraph clerk for several years, he taught physics and chemistry at a secondary school in his hometown.In 1930 he served as professor of philosophy at the University of Dijon, and was finally awarded the chair of History and Philosophy of Science at the Sorbonne University, which he ran until his retirement.He collaborated with F.Gouseth and P.Bernays in the direction of the journal Dialectica , and was also director of the Institut d'Histoire des Sciences. His activity, which resulted i

Alexander Fadeiev Biography

Alexander Fadeiev (AA Bulyga; Kimry, 1901-Moscow, 1956) Russian novelist best known for his novel The Young Guard (1946) and for his good relations with the Soviet state.The son of poor peasants, he studied in Vladivostok among many hardships.At the age of seventeen, he entered the ranks of the revolutionary movement, took part in the civil war and fought against Admiral Kolchak alongside the Bolshevik guerrillas; in 1921 he participated in the assault on Kronstadt, defended by anarchist sailors. In 1926 one of his most notable novels appeared, Defeat , a narrative of an episode of guerrilla warfare.In it, Fadeiev introduced for the first time characters who would later reappear in subsequent works; the heroes of this author are rough, enthusiastic and generous village boys who romantically fight and risk their lives in favor of a great ideal of justice, admitted without discussion and perhaps without a clear understanding of its scope.In the work cited, an intellectual, first

The great conquerors of history

What do you think has been the greatest conqueror in the world? In today's article we will talk about the great world conquerors and what has been the evolution until today. From the beginning of the world to the current moment, as we know it, there have been multiple conquests, battles and wars that have led to the creation of different kingdoms that have remained for a short time or thousands of years. In today's article we will talk about the great conquerors of antiquity: Alexander the Great Attila Genghis Khan Napoleon Bonaparte Adolf Hitler Article index Alexander the Great Alexander the Great is considered the greatest conqueror in history, hence he was called El Grande. The great conquest that you celebrated was that of Persia, territory after territory ended up being part of its empire : Asia Minor, the Mediterranean Levant, Egypt, Mesopotamia, Persia, Central Asia and even invaded India. Attila Attila is another of the

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