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Lime Kilns, Oeiras, Portugal
Five circular lime kilns ( pt, Fornos da Cal ) made of stone, dating back to the late Middle Ages, were located in Paço de Arcos, Oeiras, Portugal. Four kilns were demolished or incorporated into surrounding buildings and their gardens, but one was purchased by the municipality in 1989. Archaeological work began in 1994 and the kiln was opened to the public in September 2004. The kilns are classified by the Portuguese Government as a Property of Public Interest. History There are doubts as to the exact time of origin of the five lime kilns in Paço de Arcos. The earliest known reference to limestone burning dates from 1582, but the construction of the surviving kilns may have been later. In the 1700s, the kilns were identified in maps of the area. They provided a major economic activity in the area and played an important role in supplying lime for construction of the many forts along the River Tagus protecting Lisbon Lisbon (; pt, Lisboa ) is the capital and largest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lime Kiln
A lime kiln is a kiln used for the calcination of limestone (calcium carbonate) to produce the form of lime (material), lime called quicklime (calcium oxide). The chemical equation for this chemical reaction, reaction is :Calcium carbonate, CaCO3 + heat → Calcium oxide, CaO + Carbon dioxide, CO2 This reaction can take place at anywhere above 840 °C (1544 °F), but is generally considered to occur at 900 °C(1655 °F) (at which temperature the partial pressure of CO2 is 1 atmosphere (unit), atmosphere), but a temperature around 1000 °C (1832 °F) (at which temperature the partial pressure of CO2 is 3.8 atmospheres) is usually used to make the reaction proceed quickly.Parkes, G.D. and Mellor, J.W. (1939). ''Mellor's Modern Inorganic Chemistry'' London: Longmans, Green and Co. Excessive temperature is avoided because it produces unreactive, "dead-burned" lime. Slaked lime (calcium hydroxide) can be formed by mixing quicklime with water. Early li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Middle Ages
The Late Middle Ages or Late Medieval Period was the Periodization, period of European history lasting from AD 1300 to 1500. The Late Middle Ages followed the High Middle Ages and preceded the onset of the early modern period (and in much of Europe, the Renaissance). Around 1300, centuries of prosperity and growth in Europe came to a halt. A series of famines and Plague (disease), plagues, including the Great Famine of 1315–1317 and the Black Death, reduced the population to around half of what it had been before the calamities. Along with depopulation came social unrest and endemic warfare. France and England experienced serious peasant uprisings, such as the Jacquerie and the Peasants' Revolt, as well as over a century of intermittent conflict, the Hundred Years' War. To add to the many problems of the period, the unity of the Catholic Church was temporarily shattered by the Western Schism. Collectively, those events are sometimes called the Crisis of the Late Middle Ages. D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paço De Arcos
Paço de Arcos () is a locality of Oeiras, Portugal, Oeiras. In 2013, the parish of Paço de Arcos merged into the new parish Oeiras e São Julião da Barra, Paço de Arcos e Caxias. The population in 2011 was 15,315, in an area of 3.39 km². It was elevated to town by a decree on December 7, 1926. Its name comes from the Palácio dos Arcos located at the entrance to the village, where king D. Manuel I of Portugal watched Vasco da Gama's caravels leave for India. Nowadays, the Portuguese maritime academy – Escola Náutica Infante D. Henrique – is based there. It's also the base of the private business jet company NetJets Europe. Paço de Arcos is where Quinta da Fonte is located, one of the biggest office parks in Europe, being the home of companies such as DLL Group, Hewlett Packard, among others. The town is featured in Robert Wilson (crime novelist), Robert Wilson's 1999 novel A Small Death in Lisbon, as both the residence of the main character, Inspector José "Zé" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tagus
The Tagus ( ; es, Tajo ; pt, Tejo ; see #Name, below) is the longest river in the Iberian Peninsula. The river rises in the Montes Universales near Teruel, in mid-eastern Spain, flows , generally west with two main south-westward sections, to empty into the Atlantic Ocean in Lisbon. Its Tagus Basin, drainage basin covers – exceeded in the peninsula only by the Douro. The river is highly used. Several dams and diversions supply drinking water to key population centres of central Spain and Portugal; dozens of hydroelectric stations create power. Between dams it follows a very constricted course, but after Castle of Almourol, Almourol, Portugal it has a wide alluvium, alluvial valley, floodplain, prone to flooding. Its mouth is a large estuary culminating at the major Port of Lisbon, port, and Portuguese capital, Lisbon. The source is specifically: in political geography, at the Fuente de GarcÃa in the FrÃas de AlbarracÃn municipality; in physical geography, within ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lisbon
Lisbon (; pt, Lisboa ) is the capital and largest city of Portugal, with an estimated population of 544,851 within its administrative limits in an area of 100.05 km2. Grande Lisboa, Lisbon's urban area extends beyond the city's administrative limits with a population of around 2.7 million people, being the List of urban areas of the European Union, 11th-most populous urban area in the European Union.Demographia: World Urban Areas - demographia.com, 06.2021 About 3 million people live in the Lisbon metropolitan area, making it the third largest metropolitan area in the Iberian Peninsula, after Madrid and Barcelona. It represents approximately 27% of the country's population. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fort Of São Julião Da Barra
The São Julião da Barra Fort is the largest and most complete military defense complex in the Vauban style remaining in Portugal. It is located in São Julião da Barra, on the point of São Gião, in the parish of Oeiras e São Julião da Barra, Paço de Arcos e Caxias, Oeiras Municipality, Lisbon District. Considered in the past as the most important maritime fortification in the country, it had originally, together with the Fort of São Lourenço do Bugio, the role of controlling access to the port of Lisbon. It is currently the official residence of the Portuguese Minister of National Defence. History Starting from small beginnings, São Julião has been modified, expanded and adapted over several centuries. The construction of a fort on the right bank of the Tagus River was recommended by the King of Portugal, Manuel I, to his son and successor, John III. In 1549 John III created the position of Master of the Works of Fortification of the Kingdom, and initially entrus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In Oeiras, Portugal
A building, or edifice, is an enclosed structure with a roof and walls standing more or less permanently in one place, such as a house or factory (although there's also portable buildings). Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons. To better understand the term ''building'' compare the list of nonbuilding structures. Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the human habitat (a place of comfort and safety) and the ''outside'' (a place that at times may be harsh and harmful). Ever since the first cave paintings, buildings have also become objects or canvasses of much artistic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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