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Ludolph Van Ceulen
Ludolph van Ceulen (, ; 28 January 1540 – 31 December 1610) was a German-Dutch mathematician from Hildesheim. He emigrated to the Netherlands. Biography Van Ceulen moved to Delft most likely in 1576 to teach fencing and mathematics and in 1594 opened a fencing school in Leiden. In 1600 he was appointed the first professor of mathematics at the Engineering School, Duytsche Mathematique, established by Maurice, Prince of Orange, at the relatively new Leiden University. He shared this professorial level at the school with the surveyor and cartographer, , which shows that the intention was to promote practical, rather than theoretical instruction. The curriculum for the new Engineering School was devised by Simon Stevin who continued to act as the personal advisor to the Prince. At first the professors at Leiden refused to accept the status of Van Ceulen and Van Merwen, especially as they taught in Dutch rather than Latin. Theological professors generally believed that practica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hildesheim
Hildesheim (; nds, Hilmessen, Hilmssen; la, Hildesia) is a city in Lower Saxony, Germany with 101,693 inhabitants. It is in the district of Hildesheim, about southeast of Hanover on the banks of the Innerste River, a small tributary of the Leine River. The Holy Roman Emperor Louis the Pious founded the Bishopric of Hildesheim in 815 and created the first settlement with a chapel on the so called ''Domhügel''. Hildesheim is situated on autobahn route 7, and hence is at the connection point of the North (Hamburg and beyond) with the South of Europe. With the Hildesheim Cathedral and the St. Michael's Church, Hildesheim became a UNESCO World Heritage Site in 1985. In 2015 the city and the diocese celebrated their 1200th anniversary. History Early years According to tradition, the city was named after its notorious founder ''Hildwin.'' The city is one of the oldest cities in Northern Germany, became the seat of the Bishopric of Hildesheim in 815 and may have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cartography
Cartography (; from grc, χάρτης , "papyrus, sheet of paper, map"; and , "write") is the study and practice of making and using maps. Combining science, aesthetics and technique, cartography builds on the premise that reality (or an imagined reality) can be modeled in ways that communicate spatial information effectively. The fundamental objectives of traditional cartography are to: * Set the map's agenda and select traits of the object to be mapped. This is the concern of map editing. Traits may be physical, such as roads or land masses, or may be abstract, such as toponyms or political boundaries. * Represent the terrain of the mapped object on flat media. This is the concern of map projections. * Eliminate characteristics of the mapped object that are not relevant to the map's purpose. This is the concern of generalization. * Reduce the complexity of the characteristics that will be mapped. This is also the concern of generalization. * Orchestrate the elements of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermal Vibration
The term "thermal energy" is used loosely in various contexts in physics and engineering. It can refer to several different well-defined physical concepts. These include the internal energy or enthalpy of a body of matter and radiation; heat, defined as a type of energy transfer (as is thermodynamic work); and the characteristic energy of a degree of freedom, k_T, in a system that is described in terms of its microscopic particulate constituents (where T denotes temperature and k_ denotes the Boltzmann constant). Relation to heat and internal energy In thermodynamics, heat is energy transferred to or from a thermodynamic system by mechanisms other than thermodynamic work or transfer of matter, such as conduction, radiation, and friction. Heat refers to a quantity transferred between systems, not to a property of any one system, or "contained" within it. On the other hand, internal energy and enthalpy are properties of a single system. Heat and work depend on the way in which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atomic Scale
Atomic spacing refers to the distance between the nuclei of atoms in a material. This space is extremely large compared to the size of the atomic nucleus, and is related to the chemical bonds which bind atoms together. In solid materials, the atomic spacing is described by the bond lengths of its atoms. In ordered solids, the atomic spacing between two bonded atoms is generally around a few ångströms (Å), which is on the order of 10−10 meters. However, in very low density gases (for example, in outer space) the average distance between atoms can be as large as a meter. In this case, the atomic spacing isn't referring to bond length. The atomic spacing of crystalline structures is usually determined by passing an electromagnetic wave of known frequency through the material, and using the laws of diffraction to determine its atomic spacing. The atomic spacing of amorphous materials (such as glass) varies substantially between different pairs of atoms, therefore diffraction ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archimedes
Archimedes of Syracuse (;; ) was a Greek mathematician, physicist, engineer, astronomer, and inventor from the ancient city of Syracuse in Sicily. Although few details of his life are known, he is regarded as one of the leading scientists in classical antiquity. Considered the greatest mathematician of ancient history, and one of the greatest of all time,* * * * * * * * * * Archimedes anticipated modern calculus and analysis by applying the concept of the infinitely small and the method of exhaustion to derive and rigorously prove a range of geometrical theorems. These include the area of a circle, the surface area and volume of a sphere, the area of an ellipse, the area under a parabola, the volume of a segment of a paraboloid of revolution, the volume of a segment of a hyperboloid of revolution, and the area of a spiral. Heath, Thomas L. 1897. ''Works of Archimedes''. Archimedes' other mathematical achievements include deriving an approximation of pi, defining ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceulen - De Circulo & Adscriptis Liber, 1619 - BEIC 175795
Van Ceulen is a Dutch toponymic surname meaning "from Cologne". '' Van Keulen'' is a modern spelling variant. People with this name include * Cornelis Janssens van Ceulen (I) (1593–1661), Dutch/English portrait painter * Cornelis Janssens van Ceulen (II) (1634–1715), Dutch/English painter * Ludolph van Ceulen Ludolph van Ceulen (, ; 28 January 1540 – 31 December 1610) was a German-Dutch mathematician from Hildesheim. He emigrated to the Netherlands. Biography Van Ceulen moved to Delft most likely in 1576 to teach fencing and mathematics and in 159 ... (1540–1610), German-Dutch mathematician {{Surname, Ceulen, Van Dutch-language surnames Toponymic surnames Surnames of Dutch origin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snell's Law
Snell's law (also known as Snell–Descartes law and ibn-Sahl law and the law of refraction) is a formula used to describe the relationship between the angles of incidence and refraction, when referring to light or other waves passing through a boundary between two different isotropic media, such as water, glass, or air. This law was named after the Dutch astronomer and mathematician Willebrord Snellius (also called Snell). In optics, the law is used in ray tracing to compute the angles of incidence or refraction, and in experimental optics to find the refractive index of a material. The law is also satisfied in meta-materials, which allow light to be bent "backward" at a negative angle of refraction with a negative refractive index. Snell's law states that, for a given pair of media, the ratio of the sines of angle of incidence (\theta_1 ) and angle of refraction (\theta_2 ) is equal to the refractive index of the second medium w.r.t the first (n21) which is equal to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Faculty Of Arts
A faculty is a division within a university or college comprising one subject area or a group of related subject areas, possibly also delimited by level (e.g. undergraduate). In American usage such divisions are generally referred to as colleges (e.g., "college of arts and sciences") or schools (e.g., "school of business"), but may also mix terminology (e.g., Harvard University has a "faculty of arts and sciences" but a "law school"). History The medieval University of Bologna, which served as a model for most of the later medieval universities in Europe, had four faculties: students began at the Faculty of Arts, graduates from which could then continue at the higher Faculties of Theology, Law, and Medicine. The privilege to establish these four faculties was usually part of medieval universities’ charters, but not every university could do so in practice. The ''Faculty of Arts'' took its name from the seven liberal arts: the triviumThe three of the humanities (grammar, rhe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rudolf Snellius
Rudolph Snel van Royen (5 October 1546 – 2 March 1613), Latinized as Rudolph Snellius, was a Dutch linguist and mathematician who held appointments at the University of Marburg and the University of Leiden. Snellius was an influence on some of the leading political and intellectual forces of the Dutch Golden Age. Life Rudolph Snel van Royen was born on 5 October 1546 in Oudewater. Born to a wealthy family in Episcopal principality of Utrecht while this province was under the dominion of the emperor Charles V, Rudolf Snel grew up in the city of Oudewater. At maturity he left to study at the University of Cologne under Valentin Naboth and at the University of Heidelberg under Immanuel Tremellius and soon received a teaching position at the University of Marburg. Though trained in Aristotelian logic, he had become impressed with the new logic of Petrus Ramus, which he taught along with mathematics and languages at his university posts. In 1578, he returned to Oudewater ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franeker University
The University of Franeker (1585–1811) was a university in Franeker, Friesland, the Netherlands. It was the second oldest university of the Netherlands, founded shortly after Leiden University. History Also known as ''Academia Franekerensis'' or the University of Friesland, it consisted of departments of Theology, Law, Medicine, Philosophy, Mathematics and Physics. Among its well-known students was Peter Stuyvesant, last director-general of the Dutch colony of New Netherland. Initially the university had an excellent reputation, attracting students from far and wide, but from 1700 its fortune changed. The university was disbanded by Napoleon in 1811, along with the Universities of Harderwijk and Utrecht. After the end of the French régime, the university was not restored. Instead, an ''Athenaeum illustre'' was founded, which did not have the right to issue doctoral degrees. In 1843, the ''Athenaeum'' itself was disbanded because of a lack of students. Today, Franeker has n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
States General Of The Netherlands
The States General of the Netherlands ( nl, Staten-Generaal ) is the supreme bicameral legislature of the Netherlands consisting of the Senate () and the House of Representatives (). Both chambers meet at the Binnenhof in The Hague. The States General originated in the 15th century as an assembly of all the provincial states of the Burgundian Netherlands. In 1579, during the Dutch Revolt, the States General split as the northern provinces openly rebelled against Philip II, and the northern States General replaced Philip II as the supreme authority of the Dutch Republic in 1581. The States General were replaced by the National Assembly after the Batavian Revolution of 1795, only to be restored in 1814, when the country had regained its sovereignty. The States General was divided into a Senate and a House of Representatives in 1815, with the establishment of the United Kingdom of the Netherlands. After the constitutional amendment of 1848, members of the House of Representative ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adriaan Metius
Adriaan Adriaanszoon, called Metius, (9 December 1571 – 6 September 1635), was a Dutch geometer and astronomer born in Alkmaar. The name "Metius" comes from the Dutch word ''meten'' ("measuring"), and therefore means something like "measurer" or "surveyor." Father and brother Adriaan Metius was born in Alkmaar, North Holland. His father, Adriaan Anthonisz, was a mathematician, land-surveyor, cartographer, and military engineer who from 1582 served also as burgomaster of Alkmaar. Metius' brother, Jacob Metius, worked as an instrument-maker and a specialist in grinding lenses. Also born in Alkmaar, Jacob died between 1624 and 1631. Little is known of him besides the fact that, in October 1608, the States General discussed his patent application for an optical telescope of his own invention described as a device for "seeing faraway things as though nearby", consisting of a convex and concave lens in a tube, and the combination magnified three or four times. Education Adriaan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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