|
Hypocaustum
A hypocaust ( la, hypocaustum) is a system of central heating in a building that produces and circulates hot air below the floor of a room, and may also warm the walls with a series of pipes through which the hot air passes. This air can warm the upper floors as well. The word derives from the Ancient Greek meaning "under" and , meaning "burnt" (as in '' caustic''). The earliest reference to such a system suggests that the temple of Ephesus in 350 BC was heated in this manner, although Vitruvius attributes its invention to Sergius Orata in c. 80 BC. Its invention improved the hygiene and living conditions of citizens, and was a forerunner of modern central heating. Roman operation Hypocausts were used for heating hot baths and other public buildings in Ancient Rome. They were also used in private homes. It was a must for the villas of the wealthier merchant class throughout the Roman Empire. The ruins of Roman hypocausts have been found throughout Europe (for example in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ondol
Ondol (; , Hangul: 온돌, 溫堗, ) or gudeul (Hangul: 구들, ) in Korean traditional architecture, is underfloor heating that uses direct heat transfer from wood smoke to heat the underside of a thick masonry floor. In modern usage it refers to any type of underfloor heating, or to a hotel or a sleeping room in Korean (as opposed to Western) style. The main components of the traditional ''ondol'' are an '' agungi'' ( firebox or stove) accessible from an adjoining room (typically kitchen or master bedroom), a raised masonry floor underlain by horizontal smoke passages, and a vertical, freestanding chimney on the opposite exterior wall providing a draft. The heated floor, supported by stone piers or baffles to distribute the smoke, is covered by stone slabs, clay and an impervious layer such as oiled paper. History Origin Use of the ''ondol'' has been found at archaeological sites in present-day North Korea. A Neolithic Age archaeological site, circa 5000 BC, discovered in Un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kachelofen
A masonry heater (also called a masonry stove) is a device for warming an interior space through radiant heating, by capturing the heat from periodic burning of fuel (usually wood), and then radiating the heat at a fairly constant temperature for a long period. Masonry heaters covered in tile are called cocklestoves (also tile stoves or ceramic stoves). The technology has existed in different forms, from back into the Neoglacial and Neolithic periods. Archaeological digs have revealed excavations of ancient inhabitants utilizing hot smoke from fires in their subterranean dwellings, to radiate into the living spaces. These early forms have evolved into modern systems. Evidence found from 5,000 B.C. of massive blocks of masonry used to retain heat foreshadowed early forms of fire hearths that were used as multifunctional heating sources. Later evolutions came in the Roman '' hypocaust'' and Austro-German cocklestove (''Kachelofen'', literally "tile oven", or ''Steinofen'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Combustion
Combustion, or burning, is a high-temperature exothermic redox chemical reaction between a fuel (the reductant) and an oxidant, usually atmospheric oxygen, that produces oxidized, often gaseous products, in a mixture termed as smoke. Combustion does not always result in fire, because a flame is only visible when substances undergoing combustion vaporize, but when it does, a flame is a characteristic indicator of the reaction. While the activation energy must be overcome to initiate combustion (e.g., using a lit match to light a fire), the heat from a flame may provide enough energy to make the reaction self-sustaining. Combustion is often a complicated sequence of elementary radical reactions. Solid fuels, such as wood and coal, first undergo endothermic pyrolysis to produce gaseous fuels whose combustion then supplies the heat required to produce more of them. Combustion is often hot enough that incandescent light in the form of either glowing or a flame is produce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Castile (historical Region)
Castile or Castille (; ) is a territory of imprecise limits located in Spain. The invention of the concept of Castile relies on the assimilation (via a metonymy) of a 19th-century determinist geographical notion, that of Castile as Spain's ("tableland core", connected to the Meseta Central) with a long-gone historical entity of diachronically variable territorial extension (the Kingdom of Castile). The proposals advocating for a particular semantic codification/closure of the concept (a '' dialogical'' construct) are connected to essentialist arguments relying on the reification of something that does not exist beyond the social action of those building Castile not only by identifiying with it as a homeland of any kind, but also ''in opposition'' to it. A hot topic concerning the concept of Castile is its relation with Spain, insofar intellectuals, politicians, writers, or historians have either endorsed, nuanced or rejected the idea of the ''maternity'' of Spain by Castile, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gloria (heating System)
{{More references, date=April 2010 Gloria (meaning ''glory'' in Spanish) was a central heating system used in Castile beginning in the Middle Ages. It was a direct descendant of the Roman hypocaust, and due to its slow rate of combustion, it allowed people to use smaller fuel A fuel is any material that can be made to react with other substances so that it releases energy as thermal energy or to be used for work. The concept was originally applied solely to those materials capable of releasing chemical energy but ...s such as hay instead of wood. Description The Gloria consisted of a firebox, generally located outside (in a courtyard, for example), which burned hay, and one or more ducts that ran under the floors of the rooms to be heated. The warm exhaust gases from the combustion would pass through these ducts and then be released outside through a vertical flue. The system is more efficient than a fireplace, because the rate of combustion (and therefore the h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Al Andalus
Al-Andalus translit. ; an, al-Andalus; ast, al-Ándalus; eu, al-Andalus; ber, ⴰⵏⴷⴰⵍⵓⵙ, label=Berber, translit=Andalus; ca, al-Àndalus; gl, al-Andalus; oc, Al Andalús; pt, al-Ândalus; es, al-Ándalus () was the Muslim-ruled area of the Iberian Peninsula. The term is used by modern historians for the former Islamic states in modern Spain and Portugal. At its greatest geographical extent, it occupied most of the peninsula and a part of present-day southern France, Septimania (8th century). For nearly a hundred years, from the 9th century to the 10th, al-Andalus extended its presence from Fraxinetum into the Alps with a series of organized raids and chronic banditry. The name describes the different Arab and Muslim states that controlled these territories at various times between 711 and 1492. These boundaries changed constantly as the Christian Reconquista progressed,"Para los autores árabes medievales, el término Al-Andalus designa la totalidad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hammam
A hammam ( ar, حمّام, translit=ḥammām, tr, hamam) or Turkish bath is a type of steam bath or a place of public bathing associated with the Islamic world. It is a prominent feature in the culture of the Muslim world and was inherited from the model of the Roman ''thermae.'' Muslim bathhouses or hammams were historically found across the Middle East, North Africa, al-Andalus (Islamic Spain and Portugal), Central Asia, the Indian subcontinent, and in Southeastern Europe under Ottoman rule. A variation on the Muslim bathhouse, the Victorian Turkish bath, became popular as a form of therapy, a method of cleansing, and a place for relaxation during the Victorian era, rapidly spreading through the British Empire, the United States of America, and Western Europe. In Islamic cultures the significance of the hammam was both religious and civic: it provided for the needs of ritual ablutions but also provided for general hygiene in an era before private plumbing and served o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iberian Peninsula
The Iberian Peninsula (), ** * Aragonese and Occitan: ''Peninsula Iberica'' ** ** * french: Péninsule Ibérique * mwl, Península Eibérica * eu, Iberiar penintsula also known as Iberia, is a peninsula in southwestern Europe, defining the westernmost edge of Eurasia. It is principally divided between Spain and Portugal, comprising most of their territory, as well as a small area of Southern France, Andorra, and Gibraltar. With an area of approximately , and a population of roughly 53 million, it is the second largest European peninsula by area, after the Scandinavian Peninsula. Name Greek name The word ''Iberia'' is a noun adapted from the Latin word "Hiberia" originating in the Ancient Greek word Ἰβηρία ('), used by Greek geographers under the rule of the Roman Empire to refer to what is known today in English as the Iberian Peninsula. At that time, the name did not describe a single geographical entity or a distinct population; the same name was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calefactory
The calefactory (also ''warming house'') was an important room or building in a medieval monastery in Western Europe. It was here that a communal fire was kept so that the monks could warm themselves after long hours of study in the (unheated) cloister or other work. In the early Middle Ages this was one of the few heated rooms in the monastery – the others being the infirmary, the guest house and the kitchen – but this policy was generally relaxed, save for a few very strict orders, by the latter part of the medieval period when fireplaces became common throughout the claustral buildings. The warming house was always one of the buildings surrounding the cloister and was entered from it. Often it was located close to the refectory so that the warmth could be shared by the monks when they were eating. In many monasteries an upper floor was built over the warming house that served as the muniment room, where the house's charter A charter is the grant of authority or rights, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dodd, Mead & Company
Dodd, Mead and Company was one of the pioneer publishing houses of the United States, based in New York City. Under several names, the firm operated from 1839 until 1990. History Origins In 1839, Moses Woodruff Dodd (1813–1899) and John S. Taylor, at that time a leading publisher in New York, formed the company of Taylor and Dodd as a publisher of religious books. In 1840, Dodd bought out Taylor and renamed the company as M.W. Dodd. Frank Howard Dodd (1844–1916) joined his father in business in 1859 and became increasingly involved in the publishing company's operation. With the retirement of founder Moses Dodd in 1870, control passed to his son Frank Howard Dodd, who joined in partnership with his cousin Edward S. Mead (1847–1894), and the company was reorganized as Dodd and Mead. In 1876, Bleecker Van Wagenen became a member of the firm and the name was changed to Dodd, Mead and Company. Tebbel, John, ''Between Covers: The Rise and Transformation of Book Publishing in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Birth Of Britain
''The'' () is a grammatical article in English, denoting persons or things that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of the archaic pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.png "Click for more on -> The Birth Of Britain")