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Tower
A tower is a tall structure, taller than it is wide, often by a significant factor. Towers are distinguished from masts by their lack of guy-wires and are therefore, along with tall buildings, self-supporting structures. Towers are specifically distinguished from buildings in that they are built not to be habitable but to serve other functions using the height of the tower. For example, the height of a clock tower improves the visibility of the clock, and the height of a tower in a fortified building such as a castle increases the visibility of the surroundings for defensive purposes. Towers may also be built for observation, leisure, or telecommunication purposes. A tower can stand alone or be supported by adjacent buildings, or it may be a feature on top of a larger structure or building. Etymology Old English ''torr'' is from Latin ''turris'' via Old French ''tor''. The Latin term together with Greek τύρσις was loaned from a pre-Indo-European Mediterranean lang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Observation Tower
An observation tower is a structure used to view events from a long distance and to create a full 360 degree range of vision to conduct long distance observations. Observation towers are usually at least tall and are made from stone, iron, and wood. Many modern towers are also used as TV towers, restaurants, or churches. The towers first appeared in the ancient world, as long ago as the Babylonian Empire. Observation towers that are used as guard posts or observation posts over an extended period to overlook an area are commonly called watchtowers instead. Construction and usage Observation towers are an easily visible sight on the countryside, as they must rise over trees and other obstacles to ensure clear vision. Older control rooms have often been likened to medieval chambers. The heavy use of stone, iron, and wood in their construction helps to create this illusion. Modern towers frequently have observation decks or terraces with restaurants or on the roof of mountain st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Castle
A castle is a type of fortified structure built during the Middle Ages predominantly by the nobility or royalty and by military orders. Scholars debate the scope of the word ''castle'', but usually consider it to be the private fortified residence of a lord or noble. This is distinct from a palace, which is not fortified; from a fortress, which was not always a residence for royalty or nobility; from a ''pleasance'' which was a walled-in residence for nobility, but not adequately fortified; and from a fortified settlement, which was a public defence – though there are many similarities among these types of construction. Use of the term has varied over time and has also been applied to structures such as hill forts and 19th-20th century homes built to resemble castles. Over the approximately 900 years when genuine castles were built, they took on a great many forms with many different features, although some, such as curtain walls, arrowslits, and portcullises, were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Towerhouse
A tower house is a particular type of stone structure, built for defensive purposes as well as habitation. Tower houses began to appear in the Middle Ages, especially in mountainous or limited access areas, in order to command and defend strategic points with reduced forces. At the same time, they were also used as an aristocrat's residence, around which a castle town was often constructed. Europe After their initial appearance in Ireland, Scotland, the Frisian lands, Basque Country and England during the High Middle Ages, tower houses were also built in other parts of western Europe, especially in parts of France and Italy. In Italian medieval communes, urban ''palazzi'' with a very tall tower were increasingly built by the local highly competitive patrician families as power centres during times of internal strife. Most north Italian cities had a number of these by the end of the Middles Ages, but few now remain, notably two towers in Bologna, twenty towers in Pavia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clock Tower
Clock towers are a specific type of structure which house a turret clock and have one or more clock faces on the upper exterior walls. Many clock towers are freestanding structures but they can also adjoin or be located on top of another building. Some other buildings also have clock faces on their exterior but these structures serve other main functions. Clock towers are a common sight in many parts of the world with some being iconic buildings. One example is the Elizabeth Tower in London (usually called " Big Ben", although strictly this name belongs only to the bell inside the tower). Definition There are many structures which may have clocks or clock faces attached to them and some structures have had clocks added to an existing structure. According to the Council on Tall Buildings and Urban Habitat a structure is defined as a building if at least fifty percent of its height is made up of floor plates containing habitable floor area. Structures that do not meet this c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guyed Mast
A guyed mast or guyed tower is a tall thin vertical structure that depends on guy lines (diagonal tensioned cables attached to the ground) for stability. The mast itself has the compressive strength to support its own weight, but does not have the shear strength to stand unsupported. It requires guy lines to stay upright and to resist lateral forces such as wind loads. Guy lines are usually spaced at equal angles about the structure's base. Guyed masts are used for telecommunications, sailing, and meteorology. The tallest guyed mast in the world is currently the KVLY-TV mast near Blanchard, North Dakota, USA. Two subtypes exist. A ''partially guyed tower'' is a structure consisting of a guyed mast on top of a freestanding tower. The guys may be anchored to the top of the freestanding structure, or to the ground. A famous tower of this type is the Gerbrandy Tower. An ''additionally guyed tower'' is a freestanding tower which either has guys attached temporarily to add s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guy-wires
A guy-wire, guy-line, guy-rope, or stay, also called simply a guy, is a tensioned cable designed to add stability to a free-standing structure. They are used commonly for ship masts, radio masts, wind turbines, utility poles, and tents. A thin vertical mast supported by guy wires is called a guyed mast. Structures that support antennas are frequently of a lattice construction and are called "towers". One end of the guy is attached to the structure, and the other is anchored to the ground at some distance from the mast or tower base. The tension in the diagonal guy-wire, combined with the compression and buckling strength of the structure, allows the structure to withstand lateral loads such as wind or the weight of cantilevered structures. They are installed radially, usually at equal angles about the structure, in trios and quads. As the tower leans a bit due to the wind force, the increased guy tension is resolved into a compression force in the tower or mast and a l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wall Of Jericho (Neolithic)
Tell es-Sultan ( ar, تل السلطان, ''lit.'' Sultan's Hill), also known as Tel Jericho ( he, תל יריחו) or Ancient Jericho, is a UNESCO-nominated archaeological site in the West Bank, in the State of Palestine, located adjacent to the Ein as-Sultan refugee camp two kilometres north of the centre of Jericho. The tell was inhabited from the 10th millennium BCE, and has been called "the oldest town in the world", with many significant archaeological finds; the site is also notable for its role in the history of Levantine archaeology. The area was first identified as the site of ancient Jericho in modern times by Charles Warren in 1868, on the basis of its proximity to the large spring of Ein es-Sultan that had been proposed as the spring of Elisha by Edward Robinson three decades earlier. History Natufian hunter-gatherers, 10,000 BCE The first permanent settlement on the site developed between 10,000 and 9000 BCE. During the Younger Dryas period of cold and d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nonbuilding Structure
A nonbuilding structure, also referred to simply as a structure, refers to any body or system of connected parts used to support a load that was not designed for continuous human occupancy. The term is used by architects, structural engineers, and mechanical engineers to distinctly identify built structures that are not buildings. Examples * Aerial lift pylon * Aqueduct * Avalanche dam * BarriersPrasad, Deo K.. ''Designing with solar power: a source book for building integrated photovoltaics (BiPV''). Mulgrave, Vic.: Images ;, 2005. Print. * Blast furnaces * Boat lifts * Brick kilns * Bridges and bridge-like structures ( aqueducts, overpasses, trestles, viaducts, etc.) * Bus stops * Canal * Carport * Chimneys and flue-gas stacks * Coke ovens * Communications tower * Conservatory * Covered bridges Kunreuther, Howard, and Richard J. Roth. Paying the price the status and role of insurance against natural disasters in the United States. Washington, D.C.: Joseph Henr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Etemenanki
Etemenanki ( Sumerian: "temple of the foundation of heaven and earth") was a ziggurat dedicated to Marduk in the ancient city of Babylon. It now exists only in ruins, located about south of Baghdad, Iraq. Etemenanki has been suggested to be the Tower of Babel from Genesis 11 in The Bible. Construction It is unclear when Etemenanki was originally constructed. Andrew R. George says that it was constructed sometime between the 14th and the 9th century BCE. Although he argues that; ''The reference to a ziqqurrat at Babylon in the Creation Epic ( Enûma Eliš· VI 63: George 1992: 301–2) is more solid evidence, ... for a Middle Assyrian piece of this poem survives to prove the long-held theory that it existed already in the second millennium BC. There is no reason to doubt that this ziqqurrat, described as ''ziqqurrat apsî elite'', "the upper ziqqurrat of the Apsû", was E-temenanki.'' George, Andrew (2007) "The Tower of Babel: Archaeology, history and cuneiform texts" ''Arch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sumerian Architecture
The architecture of Mesopotamia is ancient architecture of the region of the Tigris– Euphrates river system (also known as Mesopotamia), encompassing several distinct cultures and spanning a period from the 10th millennium BC (when the first permanent structures were built) to the 6th century BC. Among the Mesopotamian architectural accomplishments are the development of urban planning, the courtyard house, and ziggurats. No architectural profession existed in Mesopotamia; however, scribes drafted and managed construction for the government, nobility, or royalty. The study of ancient Mesopotamian architecture is based on available archaeological evidence, pictorial representation of buildings, and texts on building practices. According to Archibald Sayce, the primitive pictographs of the Uruk period era suggest that "Stone was scarce, but was already cut into blocks and seals. Brick was the ordinary building material, and with it cities, forts, temples and houses were constru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Etruscans
The Etruscan civilization () was developed by a people of Etruria in ancient Italy with a common language and culture who formed a federation of city-states. After conquering adjacent lands, its territory covered, at its greatest extent, roughly what is now Tuscany, western Umbria, and northern Lazio, as well as what are now the Po Valley, Emilia-Romagna, south-eastern Lombardy, southern Veneto, and western Campania. The earliest evidence of a culture that is identifiably Etruscan dates from about 900BC. This is the period of the Iron Age Villanovan culture, considered to be the earliest phase of Etruscan civilization, which itself developed from the previous late Bronze Age Proto-Villanovan culture in the same region. Etruscan civilization endured until it was assimilated into Roman society. Assimilation began in the late 4thcenturyBC as a result of the Roman–Etruscan Wars; it accelerated with the grant of Roman citizenship in 90 BC, and became complete in 27 B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Broch
A broch is an Iron Age drystone hollow-walled structure found in Scotland. Brochs belong to the classification "complex Atlantic roundhouse" devised by Scottish archaeologists in the 1980s. Their origin is a matter of some controversy. Origin and definition The word ''broch'' is derived from Lowland Scots 'brough', meaning (among other things) fort. In the mid-19th century Scottish antiquaries called brochs 'burgs', after Old Norse ', with the same meaning. Place names in Scandinavian Scotland such as Burgawater and Burgan show that Old Norse ' is the older word used for these structures in the north. Brochs are often referred to as '' duns'' in the west. Antiquarians began to use the spelling ''broch'' in the 1870s. A precise definition for the word has proved elusive. Brochs are the most spectacular of a complex class of roundhouse buildings found throughout Atlantic Scotland. The Shetland Amenity Trust lists about 120 sites in Shetland as candidate brochs, while the Roy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
