Impetus (mechanics)
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Impetus (mechanics)
The theory of impetus was an auxiliary or secondary theory of Aristotelian dynamics, put forth initially to explain projectile motion against gravity. It was introduced by John Philoponus in the 6th century, and elaborated by Nur ad-Din al-Bitruji at the end of the 12th century. The theory was modified by Avicenna in the 11th century and Abu'l-Barakāt al-Baghdādī in the 12th century, before it was later established in Western scientific thought by Jean Buridan in the 14th century. It is the intellectual precursor to the concepts of inertia, momentum and acceleration in classical mechanics. Aristotelian theory Aristotelian physics is the form of natural science described in the works of the Greek philosopher Aristotle (384–322 BC). In his work ''Physics'', Aristotle intended to establish general principles of change that govern all natural bodies, both living and inanimate, celestial and terrestrial – including all motion, quantitative change, qualitative change, and sub ...
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Friction
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction: *Dry friction is a force that opposes the relative lateral motion of two solid surfaces in contact. Dry friction is subdivided into ''static friction'' ("stiction") between non-moving surfaces, and ''kinetic friction'' between moving surfaces. With the exception of atomic or molecular friction, dry friction generally arises from the interaction of surface features, known as asperities (see Figure 1). *Fluid friction describes the friction between layers of a viscous fluid that are moving relative to each other. *Lubricated friction is a case of fluid friction where a lubricant fluid separates two solid surfaces. *Skin friction is a component of drag, the force resisting the motion of a fluid across the surface of a body. *Internal friction is the force resisting motion between the elements making up a so ...
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Thomism
Thomism is the philosophical and theological school that arose as a legacy of the work and thought of Thomas Aquinas (1225–1274), the Dominican philosopher, theologian, and Doctor of the Church. In philosophy, Aquinas' disputed questions and commentaries on Aristotle are perhaps his best-known works. In theology, his ''Summa Theologica'' is amongst the most influential documents in medieval theology and continues to be the central point of reference for the philosophy and theology of the Catholic Church. In the 1914 motu proprio ''Doctoris Angelici'', Pope Pius X cautioned that the teachings of the Church cannot be understood without the basic philosophical underpinnings of Aquinas' major theses: Overview Thomas Aquinas held and practiced the principle that truth is to be accepted no matter where it is found. His doctrines drew from Greek, Roman, Islamic and Jewish philosophers. Specifically, he was a realist (i.e. unlike skeptics, he believed that the world can be ...
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Unmoved Movers
The unmoved mover ( grc, ὃ οὐ κινούμενον κινεῖ, ho ou kinoúmenon kineî, that which moves without being moved) or prime mover ( la, primum movens) is a concept advanced by Aristotle as a primary cause (or first uncaused cause) or " mover" of all the motion in the universe. As is implicit in the name, the moves other things, but is not itself moved by any prior action. In Book 12 ( grc-gre, Λ) of his ''Metaphysics'', Aristotle describes the unmoved mover as being perfectly beautiful, indivisible, and contemplating only the perfect contemplation: self-contemplation. He equates this concept also with the active intellect. This Aristotelian concept had its roots in cosmological speculations of the earliest Greek pre-Socratic philosophers and became highly influential and widely drawn upon in medieval philosophy and theology. St. Thomas Aquinas, for example, elaborated on the unmoved mover in the . First philosophy Aristotle argues, in Book 8 of the ''Physics ...
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Peripatetic School
The Peripatetic school was a school of philosophy in Ancient Greece. Its teachings derived from its founder, Aristotle (384–322 BC), and ''peripatetic'' is an adjective ascribed to his followers. The school dates from around 335 BC when Aristotle began teaching in the Lyceum. It was an informal institution whose members conducted philosophical and scientific inquiries. After the middle of the 3rd century BC, the school fell into a decline, and it was not until the Roman era that there was a revival. Later members of the school concentrated on preserving and commenting on Aristotle's works rather than extending them; it died out in the 3rd century. The study of Aristotle's works by scholars who were called Peripatetics continued through late antiquity, the Middle Ages, and the Renaissance. After the fall of the Western Roman Empire, the works of the Peripatetic school were lost to the Latin West, but they were preserved in Byzantium and also incorporated into early Islamic phil ...
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Dominicus De Clavasio
Dominicus de Clavasio ( 1340–1357) was an Italian-origin scholar who taught in Paris and is known mainly from his book ''Practica geometriae'' (1346) which included commentaries on other works of the period. He is referred to variously as Dominicus de Calvisio, Dominicus de Clavaxio, Dominicus de Clivaxo, or Dominique de Chivasso. De Clavasio's birth date is unknown but he was born in Chivasso near Turin and taught in Paris during 1349–1350 at the Collège de Constantinople. He wrote ''Practica geometriae'' (1346) which is made of three parts with Book I being a commentary on contemporary measurement, arithmetic and geometry; Book II on geometrical constructions and III on three-dimensional figures. He extensively commented on Aristotle's works, cited Ptolemy, and Campanus of Novara Campanus of Novara ( 1220 – 1296) was an Italian mathematician, astronomer, astrologer, and physician who is best known for his work on Euclid's ''Elements''. In his writings he refers to him ...
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Albert Of Saxony (philosopher)
Albert of Saxony (Latin: ''Albertus de Saxonia''; c. 1320 – 8 July 1390) was a German philosopher and mathematician known for his contributions to logic and physics. He was bishop of Halberstadt from 1366 until his death. Life Albert was born at Rickensdorf near Helmstedt, the son of a farmer in a small village; but because of his talent, he was sent to study at the University of Prague and the University of Paris. At Paris, he became a master of arts (a professor), and held this post from 1351 until 1362. He also studied theology at the College of Sorbonne, although without receiving a degree. In 1353, he was rector of the University of Paris. After 1362, Albert went to the court of Pope Urban V in Avignon as an envoy of Rudolf IV, Duke of Austria, in order to negotiate the founding of the University of Vienna. The negotiations were successful, and Albert became the first rector of this University in 1365. In 1366, Albert was elected bishop of Halberstadt (counted as Albert ...
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Shlomo Pines
Shlomo Pines (; ; August 5, 1908 in Charenton-le-Pont – January 9, 1990 in Jerusalem) was an Israeli scholar of Jewish and Islamic philosophy, best known for his English translation of Maimonides' ''Guide of the Perplexed''. Biography Pines was born in Charenton-le-Pont near Paris, and grew up in Paris, Riga, Archangelsk, London and Berlin. His father, Meir Pines, was a scholar and businessman whose Sorbonne dissertation comprised the first attempt at a history of Yiddish literature. Between 1926 and 1934 Shlomo Pines studied philosophy, Semitic languages, and linguistics at the universities of Heidelberg, Geneva and Berlin. Among his friends at Berlin were Paul Kraus and Leo Strauss, the latter of whom would contribute the lengthy introductory essay to Pines' classic translation of ''The Guide''. From 1937 to 1939 he taught the history of science in Islamic countries at the Institute of the History of Science in Paris. In 1940, he and his family departed for Palestine on th ...
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Brill Publishers
Brill Academic Publishers (known as E. J. Brill, Koninklijke Brill, Brill ()) is a Dutch international academic publisher founded in 1683 in Leiden, Netherlands. With offices in Leiden, Boston, Paderborn and Singapore, Brill today publishes 275 journals and around 1200 new books and reference works each year all of which are "subject to external, single or double-blind peer review." In addition, Brill provides of primary source materials online and on microform for researchers in the humanities and social sciences. Areas of publication Brill publishes in the following subject areas: * Humanities: :* African Studies :* American Studies :* Ancient Near East and Egypt Studies :* Archaeology, Art & Architecture :* Asian Studies (Hotei Publishing and Global Oriental imprints) :* Classical Studies :* Education :* Jewish Studies :* Literature and Cultural Studies (under the Brill-Rodopi imprint) :* Media Studies :* Middle East and Islamic Studies :* Philosophy :* Religious Studies ...
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Routledge
Routledge () is a British multinational publisher. It was founded in 1836 by George Routledge, and specialises in providing academic books, journals and online resources in the fields of the humanities, behavioural science, education, law, and social science. The company publishes approximately 1,800 journals and 5,000 new books each year and their backlist encompasses over 70,000 titles. Routledge is claimed to be the largest global academic publisher within humanities and social sciences. In 1998, Routledge became a subdivision and imprint of its former rival, Taylor & Francis Group (T&F), as a result of a £90-million acquisition deal from Cinven, a venture capital group which had purchased it two years previously for £25 million. Following the merger of Informa and T&F in 2004, Routledge became a publishing unit and major imprint within the Informa "academic publishing" division. Routledge is headquartered in the main T&F office in Milton Park, Abingdon, Oxfordshire and ...
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Seyyed Hossein Nasr
Seyyed Hossein Nasr (; fa, سید حسین نصر, born April 7, 1933) is an Iranian philosopher and University Professor of Islamic studies at George Washington University. Born in Tehran, Nasr completed his education in Iran and the United States, earning a bachelor's degree in physics from Massachusetts Institute of Technology, a master's in geology and geophysics, and a doctorate in the history of science from Harvard University. He returned to his homeland in 1958, turning down teaching positions at MIT and Harvard, and was appointed a professor of philosophy and Islamic sciences at Tehran University. He held various academic positions in Iran, including vice-chancellor at Tehran University and President of Sharif University of Technology, Aryamehr University, and established the Iranian Research Institute of Philosophy, Imperial Iranian Academy of Philosophy at the request of Empress Farah Pahlavi, which soon became one of the most prominent centers of philosophical activit ...
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