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Pendentives
In architecture, a pendentive is a constructional device permitting the placing of a circular dome over a square room or of an elliptical dome over a rectangular room. The pendentives, which are triangular segments of a sphere, taper to points at the bottom and spread at the top to establish the continuous circular or elliptical base needed for a dome. In masonry the pendentives thus receive the weight of the dome, concentrating it at the four corners where it can be received by the piers beneath. Prior to the pendentive's development, builders used the device of corbelling or squinches in the corners of a room. Pendentives commonly occurred in Orthodox, Renaissance, and Baroque churches, with a drum with windows often inserted between the pendentives and the dome. The first experimentation with pendentives began with Roman dome construction in the 2nd–3rd century AD, while full development of the form came in the 6th-century Eastern Roman Hagia Sophia at Constantinople. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dome
A dome () is an architectural element similar to the hollow upper half of a sphere. There is significant overlap with the term cupola, which may also refer to a dome or a structure on top of a dome. The precise definition of a dome has been a matter of controversy and there are a wide variety of forms and specialized terms to describe them. A dome can rest directly upon a Rotunda (architecture), rotunda wall, a Tholobate, drum, or a system of squinches or pendentives used to accommodate the transition in shape from a rectangular or square space to the round or polygonal base of the dome. The dome's apex may be closed or may be open in the form of an Oculus (architecture), oculus, which may itself be covered with a roof lantern and cupola. Domes have a long architectural lineage that extends back into prehistory. Domes were built in ancient Mesopotamia, and they have been found in Persian architecture, Persian, Ancient Greek architecture, Hellenistic, Ancient Roman architecture, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hagia Sophia
Hagia Sophia ( 'Holy Wisdom'; ; ; ), officially the Hagia Sophia Grand Mosque ( tr, Ayasofya-i Kebir Cami-i Şerifi), is a mosque and major cultural and historical site in Istanbul, Turkey. The cathedral was originally built as a Greek Orthodox church which lasted from 360 AD until the conquest of Constantinople by the Ottoman Empire in 1453. It served as a mosque until 1935, when it became a museum. In 2020, the site once again became a mosque. The current structure was built by the eastern Roman emperor Justinian I as the Christian cathedral of Constantinople for the state church of the Roman Empire between 532 and 537, and was designed by the Greek geometers Isidore of Miletus and Anthemius of Tralles. It was formally called the Church of the Holy Wisdom () and upon completion became the world's largest interior space and among the first to employ a fully pendentive dome. It is considered the epitome of Byzantine architecture and is said to have "changed the history o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Italian Renaissance Domes
Italian Renaissance domes were designed during the Renaissance period of the fifteenth and sixteenth centuries in Italy. Beginning in Florence, the style spread to Rome and Venice and made the combination of dome, drum, and barrel vaults standard structural forms. Notable architects during the Italian Renaissance were Filippo Brunelleschi, builder of the dome of Florence Cathedral, Donato Bramante, Andrea Palladio, and Michelangelo, designer of the dome of St. Peter's Basilica. Fifteenth century Florence Cathedral After years of considering options, Filippo Brunelleschi and Lorenzo Ghiberti were made joint leaders of the project to build the dome for Florence Cathedral in 1420. Brunelleschi's plan to use suspended scaffolding for the workers won out over alternatives such as building a provisional stone support column in the center of the crossing or filling the space with earth. The octagonal brick domical vault was built between 1420 and 1436, with Ghiberti resigning in 1433. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Giovanni Evangelista, Parma
San Giovanni Evangelista is a church in Parma, northern Italy, part of a complex also including a Benedictine convent and grocery. History Works for the abbey and church were started in the 10th century over a pre-existing oratory associated with St. Colombanus. In 1477 the whole complex was damaged by a fire. The abbey basilica was rebuilt from around 1490, with the present design by Bernardino Zaccagni dating from 1510. The construction ended around 1519. The design included since the beginning a thoroughly painting decoration of the interior, and a contract had been signed with the young Correggio, who a had already worked in another Benedictine monastery, in the Camera della Badessa of San Paolo. Correggio executed five frescoes groups. The first includes the lunette with ''St. John and the Eagle'' (c. 1520), followed by the dome, with the ''Ascension of Christ'' and the drum and the four pendentives decoration. The third work was the decoration of the vault and the apse ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spandrel
A spandrel is a roughly triangular space, usually found in pairs, between the top of an arch and a rectangular frame; between the tops of two adjacent arches or one of the four spaces between a circle within a square. They are frequently filled with decorative elements. Meaning There are four or five accepted and cognate meanings of the term ''spandrel'' in architectural and art history, mostly relating to the space between a curved figure and a rectangular boundary – such as the space between the curve of an arch and a rectilinear bounding moulding, or the wallspace bounded by adjacent arches in an arcade and the stringcourse or moulding above them, or the space between the central medallion of a carpet and its rectangular corners, or the space between the circular face of a clock and the corners of the square revealed by its hood. Also included is the space under a flight of stairs, if it is not occupied by another flight of stairs. In a building with more than one floor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pier (architecture)
A pier, in architecture, is an upright support for a structure or superstructure such as an arch or bridge. Sections of structural walls between openings (bays) can function as piers. External or free-standing walls may have piers at the ends or on corners. Description The simplest cross section of the pier is square, or rectangular, but other shapes are also common. In medieval architecture, massive circular supports called drum piers, cruciform (cross-shaped) piers, and compound piers are common architectural elements. Columns are a similar upright support, but stand on a round base. In buildings with a sequence of bays between piers, each opening (window or door) between two piers is considered a single bay. Bridge piers Single-span bridges have abutments at each end that support the weight of the bridge and serve as retaining walls to resist lateral movement of the earthen fill of the bridge approach. Multi-span bridges require piers to support the ends of spans betwe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fulnek
Fulnek () is a town in Nový Jičín District in the Moravian-Silesian Region of the Czech Republic. It has about 5,500 inhabitants. The historic town centre is well preserved and is protected by law as an urban monument zone. Administrative parts Villages of Děrné, Dolejší Kunčice, Jerlochovice, Jestřabí, Jílovec, Kostelec, Lukavec, Pohořílky, Stachovice and Vlkovice are administrative parts of Fulnek. Geography Fulnek lies north of Nový Jičín and southwest of Ostrava. Fulnek is located in the hilly landscape of the Nízký Jeseník mountain range. The town lies at the confluence of two streams, Husí and Gručovka. History Fulnek was probably founded by the lords of Lichtenburk, who received this land from King Ottokar II of Bohemia. The first written mention of Fulnek is from 1293, when the town already had a fortress, a church and a rectory. The town was probably planned as the centre of a larger estate, which is indicated by the relatively large town square ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elliptical Dome
An elliptical dome, or an ''oval dome'', is a dome whose bottom cross-section takes the form of an ellipse. Technically, an ''ellipsoidal dome'' has a circular cross-section, so is not quite the same. While the cupola can take different geometries, when the ceiling's cross-section takes the form of an ellipse, and due to the reflecting properties of an ellipse, any two persons standing at a focus of the floor's ellipse can have one whisper, and the other hears; this is a whispering gallery. The largest elliptical dome in the world is at the Sanctuary of Vicoforte in Vicoforte, Italy. In architecture Elliptical domes have many applications in architecture; and are useful in covering rectangular spaces. The oblate, or horizontal elliptical dome is useful when there is a need to limit height of the space that would result from a spherical dome. As the mathematical description of an elliptical dome is more complex than that of spherical dome, design care is needed. In a geod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphere
A sphere () is a Geometry, geometrical object that is a solid geometry, three-dimensional analogue to a two-dimensional circle. A sphere is the Locus (mathematics), set of points that are all at the same distance from a given point in three-dimensional space.. That given point is the centre (geometry), centre of the sphere, and is the sphere's radius. The earliest known mentions of spheres appear in the work of the Greek mathematics, ancient Greek mathematicians. The sphere is a fundamental object in many fields of mathematics. Spheres and nearly-spherical shapes also appear in nature and industry. Bubble (physics), Bubbles such as soap bubbles take a spherical shape in equilibrium. spherical Earth, The Earth is often approximated as a sphere in geography, and the celestial sphere is an important concept in astronomy. Manufactured items including pressure vessels and most curved mirrors and lenses are based on spheres. Spheres rolling, roll smoothly in any direction, so mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antonio Da Correggio
Antonio Allegri da Correggio (August 1489 – 5 March 1534), usually known as just Correggio (, also , , ), was the foremost painter of the Parma school of the High Italian Renaissance, who was responsible for some of the most vigorous and sensuous works of the sixteenth century. In his use of dynamic composition, illusionistic perspective and dramatic foreshortening, Correggio prefigured the Baroque art of the seventeenth century and the Rococo art of the eighteenth century. He is considered a master of chiaroscuro. Early life Antonio Allegri was born in Correggio, a small town near Reggio Emilia. His date of birth is uncertain (around 1489). His father was a merchant. Otherwise little is known about Correggio's early life or training. It is, however, often assumed that he had his first artistic education from his father's brother, the painter Lorenzo Allegri. In 1503–1505, he was apprenticed to Francesco Bianchi Ferrara in Modena, where he probably became familiar with the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vision Of St
Vision, Visions, or The Vision may refer to: Perception Optical perception * Visual perception, the sense of sight * Visual system, the physical mechanism of eyesight * Computer vision, a field dealing with how computers can be made to gain understanding from digital images or videos * Machine vision, technology for imaging-based automatic inspection Perception of the future * Foresight (psychology), in business, the ability to envisage future market trends and plan accordingly * Goal, a desired result ** Vision statement, a declaration of objectives to guide decision-making Other perceptions * Vision (spirituality), a supernatural experience that conveys a revelation * Hallucination, a perception of something that does not exist Arts and media Events * Visions (convention), a science fiction event * Vision Festival, a New York City art festival Film and television * "The Vision", episode of '' Alcoa Presents: One Step Beyond'' * ''The Vision'' (film), 1998 British televisio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nantua
Nantua (; Arpitan: ''Nantuat'') is a commune in and subprefecture of the Ain département in the Auvergne-Rhône-Alpes region in Eastern France. In 2019, it had a population of 3,454. The commune of Nantua comprises the glacial Lac de Nantua. Located in the Haut-Bugey historical region, among the southern foothills of the Jura Mountains, it is famous for its fresh-water fish and crayfish. History The town grew up around a Benedictine monastery founded in 671 by Amandus and the church of St Peter where the body of Charles the Bald was initially buried. The priory of Nantua was sacked and burned in 1230 by Stephen I of Thoire-Villars.Eugene L. Cox, ''The Eagles of Savoy'', (Princeton University Press, 1974), 17-18. Boniface of Savoy was selected prior in 1232. In 1944, a hundred men were arrested and deported and the local French Secret Army leader was shot dead by the Nazis in response to French resistance activities.Matthew Cobbs, ''The Resistance'', p. 181 Demographics C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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