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Lodovico Ferrari
Lodovico de Ferrari (2 February 1522 – 5 October 1565) was an Italians, Italian mathematician best known today for solving the biquadratic equation. Biography Born in Bologna, Lodovico's grandfather, Bartolomeo Ferrari, was forced out of Milan to Bologna. Lodovico settled in Bologna, and he began his career as the servant of Gerolamo Cardano. He was extremely bright, so Cardano started teaching him mathematics. Ferrari aided Cardano on his solutions for biquadratic equations and cubic equations, and was mainly responsible for the solution of biquadratic equations that Cardano published. While still in his teens, Ferrari was able to obtain a prestigious teaching post in Rome after Cardano resigned from it and recommended him. Ferrari retired when young at 42 years old, and wealthy. He then moved back to his home town of Bologna where he lived with his widowed sister Maddalena to take up a professorship of mathematics at the University of Bologna in 1565. Shortly thereafter, h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bologna
Bologna ( , , ; ; ) is the capital and largest city of the Emilia-Romagna region in northern Italy. It is the List of cities in Italy, seventh most populous city in Italy, with about 400,000 inhabitants and 150 different nationalities. Its Metropolitan City of Bologna, metropolitan province is home to more than 1 million people. Bologna is most famous for being the home to the List of oldest universities in continuous operation, oldest university in continuous operation,Top Universities ''World University Rankings'' Retrieved 6 January 2010Hunt Janin: "The university in medieval life, 1179–1499", McFarland, 2008, , p. 55f.de Ridder-Symoens, Hilde [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dover Publications
Dover Publications, also known as Dover Books, is an American book publisher founded in 1941 by Hayward and Blanche Cirker. It primarily reissues books that are out of print from their original publishers. These are often, but not always, books in the public domain. The original published editions may be scarce or historically significant. Dover republishes these books, making them available at a significantly reduced cost. Classic reprints Dover reprints classic works of literature, classical sheet music, and public-domain images from the 18th and 19th centuries. Dover also publishes an extensive collection of mathematical, scientific, and engineering texts. It often targets its reprints at a niche market, such as woodworking. Starting in 2015, the company branched out into graphic novel reprints, overseen by Dover acquisitions editor and former comics writer and editor Drew Ford. Most Dover reprints are photo facsimiles of the originals, retaining the original pagination ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientists From Bologna
A scientist is a person who researches to advance knowledge in an area of the natural sciences. In classical antiquity, there was no real ancient analog of a modern scientist. Instead, philosophers engaged in the philosophical study of nature called natural philosophy, a precursor of natural science. Though Thales ( 624–545 BC) was arguably the first scientist for describing how cosmic events may be seen as natural, not necessarily caused by gods,Frank N. Magill''The Ancient World: Dictionary of World Biography'', Volume 1 Routledge, 2003 it was not until the 19th century that the term ''scientist'' came into regular use after it was coined by the theologian, philosopher, and historian of science William Whewell in 1833. History The roles of "scientists", and their predecessors before the emergence of modern scientific disciplines, have evolved considerably over time. Scientists of different eras (and before them, natural philosophers, mathematicians, natur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1565 Deaths
Year 1565 ( MDLXV) was a common year starting on Monday of the Julian calendar. Events January–March * January 3 – In the Tsardom of Russia, Ivan the Terrible originates the oprichnina (repression of the boyars (aristocrats)). * January 23 – Battle of Talikota: The Vijayanagara Empire, the last Hindu kingdom in South India, is greatly weakened by the Deccan sultanates. * February 13 – Spanish Conquistador Miguel López de Legazpi lands with his troops on the shores of Cebu Island in the Philippines. * March 1 – The city of Rio de Janeiro, Brazil, is founded as ''São Sebastião do Rio de Janeiro'' by Estácio de Sá. * March 16 – Spanish Conquistador López de Legazpi makes a blood compact (''sandugan'') with Datu Sikatuna in the island of Bohol, Philippines. April–June * April 27 – Cebu City is established as San Miguel by López de Legazpi, becoming the first Spanish settlement in the Philippines. * May 2 &nda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1522 Births
__NOTOC__ Year 1522 (Roman numerals, MDXXII) was a common year starting on Wednesday of the Julian calendar, the 1522nd year of the Common Era (CE) and ''Anno Domini'' (AD) designations, the 522nd year of the 2nd millennium, the 22nd year of the 16th century, and the 3rd year of the 1520s decade. Events January–March * January 9 – The 1521–1522 papal conclave, papal conclave to elect a successor to the late Pope Leo X is concluded as Adriaan Florensz Boeyens of the Netherlands, Bishop of Utrecht, is selected as a compromise candidate despite being absent from the proceedings. Bishop Boeyens is proclaimed as Pope Adrian VI, the 218th pope and the last non-Italian pontiff for the next 450 years. * January 26 – Spanish ''conquistador'' Gil González Dávila sets out from the gulf of Panama to explore the Pacific coast of Central America. He Spanish conquest of Nicaragua#Discovery of Nicaragua, 1519–1522, explores Nicaragua and names Costa Rica when he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cardano–Tartaglia Formula
In algebra, a cubic equation in one variable is an equation of the form ax^3+bx^2+cx+d=0 in which is not zero. The solutions of this equation are called roots of the cubic function defined by the left-hand side of the equation. If all of the coefficients , , , and of the cubic equation are real numbers, then it has at least one real root (this is true for all odd-degree polynomial functions). All of the roots of the cubic equation can be found by the following means: * algebraically: more precisely, they can be expressed by a ''cubic formula'' involving the four coefficients, the four basic arithmetic operations, square roots, and cube roots. (This is also true of quadratic (second-degree) and quartic (fourth-degree) equations, but not for higher-degree equations, by the Abel–Ruffini theorem.) * trigonometrically * numerical approximations of the roots can be found using root-finding algorithms such as Newton's method. The coefficients do not need to be real numbers. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tony Rothman
Tony Rothman (born 1953) is an American theoretical physicist, academic and writer. Early life Tony is the son of physicist and science fiction writer Milton A. Rothman and psychotherapist Doris W. Rothman. He holds a B.A. from Swarthmore College, (1975) and a Ph.D. from the University of Texas at Austin (1981), where he studied at the Center for Relativity under the supervision of its long-time director Richard Matzner. He continued on post-doctoral fellowships at Oxford under Dennis Sciama, Moscow State University under Yakov Zeldovich and the University of Cape Town under George F.R. Ellis. Career Rothman worked briefly as an editor at ''Scientific American'', then taught at Harvard, Illinois Wesleyan University, Bryn Mawr College and from 2005 to 2013 at Princeton University. In January 2016 he joined the faculty of NYU Polytech, now known as the Tandon School of Engineering, and retired from teaching there in 2019. Rothman's scientific research has been concerned mai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niccolò Fontana Tartaglia
Nicolo, known as Tartaglia (; 1499/1500 – 13 December 1557), was an Italian mathematician, engineer (designing fortifications), a surveyor (of topography, seeking the best means of defense or offense) and a bookkeeper from the then Republic of Venice. He published many books, including the first Italian translations of Archimedes and Euclid, and an acclaimed compilation of mathematics. Tartaglia was the first to apply mathematics to the investigation of the paths of cannonballs, known as ballistics, in his ''Nova Scientia'' (''A New Science'', 1537); his work was later partially validated and partially superseded by Galileo's studies on falling bodies. He also published a treatise on retrieving sunken ships. Personal life Nicolo was born in Brescia, the son of Michele, a dispatch rider who travelled to neighbouring towns to deliver mail. In 1506, Michele was murdered by robbers, and Nicolo, his two siblings, and his mother were left impoverished. Nicolo experienced further ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simon Gindikin
Simon Grigorevich Gindikin (; born 7 December 1937, Moscow, Russian SFSR) is a mathematician at Rutgers University Rutgers University ( ), officially Rutgers, The State University of New Jersey, is a Public university, public land-grant research university consisting of three campuses in New Jersey. Chartered in 1766, Rutgers was originally called Queen's C ... who introduced the Gindikin–Karpelevich formula for the Harish-Chandra c-function. Publications * * * References External linksInterview with Simon Gindikin * {{DEFAULTSORT:Gindikin, Simon 1937 births Living people [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arsenic
Arsenic is a chemical element; it has Symbol (chemistry), symbol As and atomic number 33. It is a metalloid and one of the pnictogens, and therefore shares many properties with its group 15 neighbors phosphorus and antimony. Arsenic is notoriously toxic. It occurs naturally in many minerals, usually in combination with sulfur and metals, but also as a pure elemental crystal. It has various Allotropes of arsenic, allotropes, but only the grey form, which has a metallic appearance, is important to industry. The primary use of arsenic is in alloys of lead (for example, in car batteries and ammunition). Arsenic is also a common n-type dopant in semiconductor electronic devices, and a component of the III–V compound semiconductor gallium arsenide. Arsenic and its compounds, especially the trioxide, are used in the production of pesticides, treated wood products, herbicides, and insecticides. These applications are declining with the increasing recognition of the persistent tox ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Eugene Smith
David Eugene Smith (January 21, 1860 – July 29, 1944) was an American mathematician, educator, and editor. Education and career David Eugene Smith is considered one of the founders of the field of mathematics education. Smith was born in Cortland, New York, to Abram P. Smith, attorney and surrogate judge, and Mary Elizabeth Bronson, who taught her young son Latin and Greek. He attended Syracuse University, graduating in 1881 (Ph. D., 1887; LL.D., 1905). He studied to be a lawyer concentrating in arts and humanities, but accepted an instructorship in mathematics at the Cortland Normal School in 1884 where he attended as a young man. While at the Cortland Normal School Smith became a member of the Young Men's Debating Club (today the Delphic Fraternity.) He became a professor at the Michigan State Normal College in 1891 (later Eastern Michigan University), the principal at the State Normal School in Brockport, New York (1898), and a professor of mathematics at Teachers Colle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Italy
Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land border, as well as List of islands of Italy, nearly 800 islands, notably Sicily and Sardinia. Italy shares land borders with France to the west; Switzerland and Austria to the north; Slovenia to the east; and the two enclaves of Vatican City and San Marino. It is the List of European countries by area, tenth-largest country in Europe by area, covering , and the third-most populous member state of the European Union, with nearly 59 million inhabitants. Italy's capital and List of cities in Italy, largest city is Rome; other major cities include Milan, Naples, Turin, Palermo, Bologna, Florence, Genoa, and Venice. The history of Italy goes back to numerous List of ancient peoples of Italy, Italic peoples—notably including the ancient Romans, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
