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Emilio Villari
Emilio Villari (25 September 1836 – 20 August 1904) was an Italian experimental physicist and a professor at the University of Bologna and later Naples who contributed to studies on electromagnetism after whom is named the Inverse magnetostrictive effect, Villari Effect. He also developed a quadrant electrometer. Villari came from a wealthy family, his father was a lawyer and a younger sibling was Pasquale Villari. Suffering from epileptic seizures from an early age he was privately educated in Naples including in literature under Leopoldo Rodino, math under Achille Sannia and physics from Luigi Palmieri. He then went to the University of Pisa where his brother Pasquale taught. He studied medicine but was influenced by Riccardo Felici and he later studied physics. He spent some time in Germany in the laboratory of Gustav Magnus before joining the University of Bologna in 1871 as professor of physics. In 1900 he moved to Naples to succeed Gilberto Govi. In 1873 he examined why alt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emilio Villari, Ante 1904 - Accademia Delle Scienze Di Torino 0107 C
Emilio may refer to: * Emilio Navaira, a Mexican-American singer often called "Emilio" * Emilio Piazza Memorial School, in Port Harcourt, Rivers State * Emilio (given name) * Emilio (film), ''Emilio'' (film), a 2008 film by Kim Jorgensen See also * Emílio (other) * Emilios (other) {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inverse Magnetostrictive Effect
The inverse magnetostrictive effect, magnetoelastic effect or Villari effect, after its discoverer Emilio Villari, is the change of the magnetic susceptibility of a material when subjected to a mechanical stress. Explanation The magnetostriction \lambda characterizes the shape change of a ferromagnetic material during magnetization, whereas the inverse magnetostrictive effect characterizes the change of sample magnetization M(for given magnetizing field strength H) when mechanical stresses \sigma are applied to the sample. Qualitative explanation of magnetoelastic effect Under a given uni-axial mechanical stress \sigma, the flux density B for a given magnetizing field strength H may increase or decrease. The way in which a material responds to stresses depends on its saturation magnetostriction \lambda_s. For this analysis, compressive stresses \sigma are considered as negative, whereas tensile stresses are positive. According to Le Chatelier's principle: \left(\frac\right)_=\l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Domenico Morelli - Ritratto Di Emilio Villari Giovane
Domenico is an Italian given name for males and may refer to: People * Domenico Alfani, Italian painter * Domenico Allegri, Italian composer * Domenico Alvaro, Italian mobster * Domenico Ambrogi, Italian painter * Domenico Auria, Italian architect * Domenico del Barbieri, Florentine artist * Domenico di Bartolo, Italian painter * Domenico Bartolucci, Italian Roman Catholic cardinal * Domenico di Pace Beccafumi, Italian painter * Domenico Pignatelli di Belmonte, Italian Roman Catholic cardinal * Domenico Berardi, Italian footballer * Domenico Bernini, son of Gian Lorenzo Bernini * Domenico Bidognetti, Italian criminal * Domenico Bollani, Venetian diplomat and politician * Domenico Canale, Italian-American distributor * Domenico Caprioli, Italian painter * Domenico Caruso, Italian poet and writer * Domenico Cefalù, Italian-American mobster * Domenico Cimarosa, Italian composer * Domenico Cirillo, Italian physician and patriot * Domenico Colombo, father of Christopher Columbus * Do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pasquale Villari
Pasquale Villari (3 October 1827 – 11 December 1917) was an Italian historian and politician. Early life and publications Villari was born in Naples and took part in the risings of 1848 there against the Bourbons and subsequently fled to Florence. There he devoted himself to teaching and historical research in the public libraries with the object of collecting new materials on Girolamo Savonarola. He published the fruits of his researches in the ''Archivio Storico Italiano'' in 1856, and in 1859 he published the first volume of his ''Storia di Girolamo Savonarola e de' suoi tempi'', in consequence of which he was appointed professor of history at Pisa. A second volume appeared in 1861, and the work, which soon came to be recognized as an Italian classic, was translated into various foreign languages. It was followed by a work of even greater critical value, ''Niccolò Machiavelli e i suoi tempi'' (1877–82). In the meanwhile Villari had left Pisa and was transferred to the chai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Achille Sannia
Achille Sannia (14 April 1822 – 2 August 1892) was an Italian mathematician and politician. Biography Achille Sannia was a senator of the Kingdom of Italy. He was born in Campobasso and later moved from Molise to Naples to continue his studies together with Enrico D'Ovidio. He first taught in a private school before moving to a University in 1865 as a professor of geometry. In 1871, he created a school of Electrical engineering. He wrote two important treatises, one concerning projective geometry and the other elementary geometry. He was a member of the Academy of sciences, Academy of Sciences. He had a son, Gustavo Sannia who was also a mathematician. Works *Planimetrics, Planimetry, with Enrico D'Ovidio, Stab. typ. of the fine arts, Naples 1869, II ed. 1871 *Geometry elements, with Enrico D'Ovidio, (14 editions), Naples 1868-69, 12th edition, B. Pellerano LC Scientific and Industrial Library successor, Naples 1906 *Projection Geometry Lessons dictated in the Royal Uni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luigi Palmieri
Luigi Palmieri (22 April 1807 – 9 September 1896) was an Italian physicist and meteorologist. He was famous for his scientific studies of the eruptions of Mount Vesuvius, for his researches on earthquakes and meteorological phenomena and for improving the seismograph of the time. Biography Palmieri was born in Faicchio, Benevento, Italy and died in Naples, Italy at the age of 89. Palmieri received a degree in physics from the University of Naples. In 1845, he was made Professor of Physics at the Royal Naval School in Naples and in 1847 was appointed as Chair of Physics at the university. In 1848, he began working at the Vesuvius Observatory and in 1854 was appointed as Director of the Observatory. Using an electromagnetic seismometer for the detection and measurement of ground tremors, Palmieri was able to detect very slight movements in trying to predict volcanic eruptions. Furthermore, he was the first to detect the presence of Helium on Earth on the lava of Mount Vesu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riccardo Felici
Riccardo Felici (11 June 1819 – 20 July 1902) was a physicist and Italian professor of the University of Pisa. He is best known for the electrodynamics law that bears his name, through which the total charge passing through a circuit subject to an induced current can be calculated as the difference between the final and initial flux of the magnetic field, divided by the electrical resistance of the circuit. Felici anticipated, by almost fifty years, the experiments by André Blondel in 1914, in his search for the general law of magnetic induction. Biography Riccardo Felici was born in Parma, in the Duchy of Parma and Piacenza in 1819. Amidst many financial difficulties, he managed, at the age of 20, to go to Pisa to study at university. Initially oriented towards engineering studies, he devoted himself to physics research under the guidance of Carlo Matteucci. Appointed his assistant in 1846, he was then an adjunct professor at the Faculty of Natural Sciences, continuing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Bologna
The University of Bologna ( it, Alma Mater Studiorum – Università di Bologna, UNIBO) is a public research university in Bologna, Italy. Founded in 1088 by an organised guild of students (''studiorum''), it is the oldest university in continuous operation in the world, and the first degree-awarding institution of higher learning. At its foundation, the word ''universitas'' was first coined.Hunt Janin: "The university in medieval life, 1179–1499", McFarland, 2008, , p. 55f.de Ridder-Symoens, Hilde''A History of the University in Europe: Volume 1, Universities in the Middle Ages'' Cambridge University Press, 1992, , pp. 47–55 With over 90,000 students, it is the second largest university in Italy after La Sapienza in Rome. It was the first place of study to use the term ''universitas'' for the corporations of students and masters, which came to define the institution (especially its law school) located in Bologna. The university's emblem carries the motto, ''Alma Mater Studio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gilberto Govi
Amerigo Armando Gilberto Govi (; 22 October 1885 – 28 April 1966) was an Italian film and stage actor and screenwriter. He was the founder of the Genoese Dialectal Theatre. Among his greatest successes were (, "How to marry off one's daughter"), ''Pignasecca e Pignaverde'' ("Dry Pinecone and Green Pinecone") and ''Colpi di Timone'' ("Rudder blows"). Also famous in Italy, especially Genoa and Liguria Liguria (; lij, Ligûria ; french: Ligurie) is a Regions of Italy, region of north-western Italy; its Capital city, capital is Genoa. Its territory is crossed by the Alps and the Apennine Mountains, Apennines Mountain chain, mountain range and is ..., are ''Quello bonanima'' ("The one who had a good soul"), ''Gildo Peragallo, ingegnere'' ("Gildo Peragallo, engineer"), ''I Gustavino e i Passalacqua'' ("The Gustavinos and the Passalacquas") and ''Sotto a chi tocca'' ("Who's next?"). References Sources * * {{DEFAULTSORT:Govi, Gilberto 1885 births 1966 deaths Film peop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adolfo Bartoli
Adolfo Bartoli (19 March 1851 – 18 July 1896) was an Italian physicist, who is best known for introducing the concept of radiation pressure from thermodynamical considerations. Born in Florence, Bartoli studied physics and mathematics at the University of Pisa until 1874. He was professor of physics at the Technical Institute of Arezzo from 1876, at the University of Sassari from 1878, at the Technical Institute of Firenze from 1879, at the University of Catania from 1886 to 1893, and at the University of Pavia from 1893. In 1874 James Clerk Maxwell found out that the existence of tensions in the ether, in other words radiation pressure, follows from his electromagnetic theory. In 1876 Bartoli derived the existence of radiation pressure from thermodynamics. He argued that the radiant temperature of a body can be raised by reflecting its light from a moving mirror, and therefore it is possible to transport energy from a colder to a hotter body. To avoid this violation of the se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mario Pieri
Mario Pieri (22 June 1860 – 1 March 1913) was an Italian mathematician who is known for his work on foundations of geometry. Biography Pieri was born in Lucca, Italy, the son of Pellegrino Pieri and Ermina Luporini. Pellegrino was a lawyer. Pieri began his higher education at University of Bologna where he drew the attention of Salvatore Pincherle. Obtaining a scholarship, Pieri transferred to ''Scuola Normale Superiore'' in Pisa. There he took his degree in 1884 and worked first at a technical secondary school in Pisa. When an opportunity arose at the military academy in Turin to teach projective geometry, Pieri moved there and, by 1888, he was also an assistant instructor in the same subject at the University of Turin. By 1891, he had become ''libero docente'' at the university, teaching elective courses. Pieri continued to teach in Turin until 1900 when, through competition, he was awarded the position of ''extraordinary professor'' at University of Catania on the island of S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1836 Births
Events January–March * January 1 – Queen Maria II of Portugal marries Prince Ferdinand Augustus Francis Anthony of Saxe-Coburg-Gotha. * January 5 – Davy Crockett arrives in Texas. * January 12 ** , with Charles Darwin on board, reaches Sydney. ** Will County, Illinois, is formed. * February 8 – London and Greenwich Railway opens its first section, the first railway in London, England. * February 16 – A fire at the Lahaman Theatre in Saint Petersburg kills 126 people."Fires, Great", in ''The Insurance Cyclopeadia: Being an Historical Treasury of Events and Circumstances Connected with the Origin and Progress of Insurance'', Cornelius Walford, ed. (C. and E. Layton, 1876) p76 * February 23 – Texas Revolution: The Battle of the Alamo begins, with an American settler army surrounded by the Mexican Army, under Santa Anna. * February 25 – Samuel Colt receives a United States patent for the Colt revolver, the first revolving barrel multishot firearm. * March 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
