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Lighthouse Of Ponta Das Contendas
The Ponta das Contendas Lighthouse ( pt, Farol da Ponta das Contendas) is lighthouse located along the promontory of Contendas, in the civil parish of São Sebastião, municipality of Angra do Heroísmo on the island of Terceira, in the Portuguese archipelago of the Azores. History On 2 March 1882, the ''Comissão dos Faróis e Balizas'' (''Commission on Lighthouses and Beacons'') released the first plans for the installation of a lighthouse in Ponta das Contendas, equipped with a second-order lantern, that would illuminate a 240° focal range with 4 clarions (three white and one red). A year later, there was a determination that Ponta de São Jorge would be a better candidate. By 1902 the lighthouse had not yet been built. A new commission judged that Ponta de São Jorge was too obscure, and judged that a more convenient site would be Ponta das Contendas. The revised project substituted the second-order lantern for a fifth-order light, with six clarions. A parcel of land owne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fresnel Lens
A Fresnel lens ( ; ; or ) is a type of composite compact lens developed by the French physicist Augustin-Jean Fresnel (1788–1827) for use in lighthouses. It has been called "the invention that saved a million ships." The design allows the construction of lenses of large aperture and short focal length without the mass and volume of material that would be required by a lens of conventional design. A Fresnel lens can be made much thinner than a comparable conventional lens, in some cases taking the form of a flat sheet. The simpler dioptric (purely refractive) form of the lens was first proposed by Count Buffon and independently reinvented by Fresnel. The ''catadioptric'' form of the lens, entirely invented by Fresnel, has outer elements that use total internal reflection as well as refraction; it can capture more oblique light from a light source and add it to the beam of a lighthouse, making the light visible from greater distances. Description The Fresnel lens redu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cupola
In architecture, a cupola () is a relatively small, most often dome-like, tall structure on top of a building. Often used to provide a lookout or to admit light and air, it usually crowns a larger roof or dome. The word derives, via Italian, from lower Latin ''cupula'' (classical Latin ''cupella''), (Latin ''cupa''), indicating a vault resembling an upside-down cup. Background The cupola evolved during the Renaissance from the older oculus. Being weatherproof, the cupola was better suited to the wetter climates of northern Europe. The chhatri, seen in Indian architecture, fits the definition of a cupola when it is used atop a larger structure. Cupolas often serve as a belfry, belvedere, or roof lantern above a main roof. In other cases they may crown a spire, tower, or turret. Barns often have cupolas for ventilation. Cupolas can also appear as small buildings in their own right. The square, dome-like segment of a North American railroad train caboose that contains the seco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouses In The Azores
A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lenses and to serve as a beacon for navigational aid, for maritime pilots at sea or on inland waterways. Lighthouses mark dangerous coastlines, hazardous shoals, reefs, rocks, and safe entries to harbors; they also assist in aerial navigation. Once widely used, the number of operational lighthouses has declined due to the expense of maintenance and has become uneconomical since the advent of much cheaper, more sophisticated and effective electronic navigational systems. History Ancient lighthouses Before the development of clearly defined ports, mariners were guided by fires built on hilltops. Since elevating the fire would improve the visibility, placing the fire on a platform became a practice that led to the development of the lighthouse. In antiquity, the lighthouse functioned more as an entrance marker to ports than as a warning signal for reefs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouses Completed In 1934
A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lenses and to serve as a beacon for navigational aid, for maritime pilots at sea or on inland waterways. Lighthouses mark dangerous coastlines, hazardous shoals, reefs, rocks, and safe entries to harbors; they also assist in aerial navigation. Once widely used, the number of operational lighthouses has declined due to the expense of maintenance and has become uneconomical since the advent of much cheaper, more sophisticated and effective electronic navigational systems. History Ancient lighthouses Before the development of clearly defined ports, mariners were guided by fires built on hilltops. Since elevating the fire would improve the visibility, placing the fire on a platform became a practice that led to the development of the lighthouse. In antiquity, the lighthouse functioned more as an entrance marker to ports than as a warning signal for reefs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Lighthouses In Portugal
This is an alphabetical list of lighthouses in Portugal and its autonomous regions. Norte * Casa do Facho em Fão (Esposende, Apúlia e Fão) * Farol de Azurara (Vila do Conde, Azurara) * Farol de Esposende (Esposende, Esposende, Marinhas e Gandra) * Farol da Ínsua ( Caminha, Moledo e Cristelo) * Farol da Lapa (Póvoa de Varzim, Póvoa de Varzim, Beiriz e Argivai * Farol de Leça/Farol da Boa Nova ( Matosinhos, Matosinhos e Leça da Palmeira) * Farol de Montedor (Viana do Castelo, Carreço) * Farol do Portinho da Fragosa (Póvoa de Varzim) * Farol de São Miguel-O-Anjo (Porto, Aldoar, Foz do Douro e Nevogilde) * Farol da Senhora da Agonia (Viana do Castelo, Viana do Castelo (Santa Maria Maior e Monserrate) e Meadela) * Farol da Senhora da Luz (Porto, Aldoar, Foz do Douro e Nevogilde) * Farol de Regufe (Póvoa de Varzim, Póvoa de Varzim, Beiriz e Argivai) * Farolim da Barra do Ave/Facho de Árvore (Vila do Conde, Árvore) * Farolim da Cantareira (Porto, Al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Light Characteristic
A light characteristic is all of the properties that make a particular navigational light identifiable. Graphical and textual descriptions of navigational light sequences and colours are displayed on nautical charts and in Light Lists with the chart symbol for a lighthouse, lightvessel, buoy or sea mark with a light on it. Different lights use different colours, frequencies and light patterns, so mariners can identify which light they are seeing. Abbreviations While light characteristics can be described in prose, e.g. "Flashing white every three seconds", lists of lights and navigation chart annotations use abbreviations. The abbreviation notation is slightly different from one light list to another, with dots added or removed, but it usually follows a pattern similar to the following (see the chart to the right for examples). * An abbreviation of the type of light, e.g. "Fl." for flashing, "F." for fixed. * The color of the light, e.g. "W" for white, "G" for green, "R" for red, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sash Windows
A sash window or hung sash window is made of one or more movable panels, or "sashes". The individual sashes are traditionally paned windows, but can now contain an individual sheet (or sheets, in the case of double glazing) of glass. History The oldest surviving examples of sash windows were installed in England in the 1670s, for example at Ham House.Louw, HJ, ''Architectural History'', Vol. 26, 1983 (1983), pp. 49–72, 144–15JSTOR The invention of the sash window is sometimes credited, without conclusive evidence, to Robert Hooke. Others see the sash window as a Dutch invention. H.J. Louw believed that the sash window was developed in England, but concluded that it was impossible to determine the exact inventor. The sash window is often found in Georgian and Victorian houses, and the classic arrangement has three panes across by two up on each of two sash, giving a ''six over six'' panel window, although this is by no means a fixed rule. Innumerable late Victorian and Edwa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cornice
In architecture, a cornice (from the Italian ''cornice'' meaning "ledge") is generally any horizontal decorative moulding that crowns a building or furniture element—for example, the cornice over a door or window, around the top edge of a pedestal, or along the top of an interior wall. A simple cornice may be formed just with a crown, as in crown moulding atop an interior wall or above kitchen cabinets or a bookcase. A projecting cornice on a building has the function of throwing rainwater free of its walls. In residential building practice, this function is handled by projecting gable ends, roof eaves and gutters. However, house eaves may also be called "cornices" if they are finished with decorative moulding. In this sense, while most cornices are also eaves (overhanging the sides of the building), not all eaves are usually considered cornices. Eaves are primarily functional and not necessarily decorative, while cornices have a decorative aspect. A building's projecti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terrace (building)
A terrace is an external, raised, open, flat area in either a landscape (such as a park or garden) near a building, or as a roof terrace on a flat roof. Ground terraces Terraces are used primarily for leisure activity such as sitting, strolling, or resting.Davies, Nicholas and Jokiniemi, Erkki. ''Dictionary of Architecture and Building Construction''. New York: Routledge, 2008, p. 379. The term often applies to a raised area in front of a monumental building or structure, which is usually reached by a grand staircase and surrounded by a balustrade. A terrace may be supported by an embankment or solid foundation, either natural or man-made.Harris, Cyril M. ''Illustrated Dictionary of Historic Architecture''. New York: Dover Publications, 1977, p. 529. Terraces may also be platforms, supported by columns but without the space below filled in, but terraces are always open to the sky and may or may not be paved.Ching, Frank. ''A Visual Dictionary of Architecture''. Hoboken, N.J.: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cistern
A cistern (Middle English ', from Latin ', from ', "box", from Greek ', "basket") is a waterproof receptacle for holding liquids, usually water. Cisterns are often built to catch and store rainwater. Cisterns are distinguished from wells by their waterproof linings. Modern cisterns range in capacity from a few litres to thousands of cubic metres, effectively forming covered reservoirs. Origins Early domestic and agricultural use Waterproof lime plaster cisterns in the floors of houses are features of Neolithic village sites of the Levant at, for instance, Ramad and Lebwe, and by the late fourth millennium BC, as at Jawa in northeastern Lebanon, cisterns are essential elements of emerging water management techniques in dry-land farming communities. The Ancient Roman impluvium, a standard feature of the domus house, generally had a cistern underneath. The impluvium and associated structures collected, filtered, cooled, and stored the water, and also cooled and ventilated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouse-keeper
A lighthouse keeper or lightkeeper is a person responsible for tending and caring for a lighthouse, particularly the light and lens in the days when oil lamps and clockwork mechanisms were used. Lighthouse keepers were sometimes referred to as "wickies" because of their job trimming the wicks. Duties and functions Historically, lighthouse keepers were needed to trim the wicks, replenish fuel, wind clockworks and perform maintenance tasks such as cleaning lenses and windows. They were also responsible for the fog signal and the weather station, and played a major role in search and rescue at sea. Because most lighthouses are located in remote, isolated or inaccessible areas on islands and coastlines, it was typical for the work of lighthouse keeper to remain within a family, passing from parents to child, all of whom lived in or near the lighthouse itself. "Stag light" was an unofficial term given to some isolated lighthouses in the United States Lighthouse Service. It meant sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azulejo
''Azulejo'' (, ; from the Arabic ''al- zillīj'', ) is a form of Spanish and Portuguese painted tin-glazed ceramic tilework. ''Azulejos'' are found on the interior and exterior of churches, palaces, ordinary houses, schools, and nowadays, restaurants, bars and even railways or subway stations. They are an ornamental art form, but also had a specific functional capacity like temperature control in homes. There is also a tradition of their production in former Spanish and Portuguese colonies in North America, South America, the Philippines, Goa (India), Lusophone Africa, East Timor, and Macau (China). ''Azulejos'' constitute a major aspect of Spanish architecture and Portuguese architecture to this day and are fixtures of buildings across Spain and Portugal and its former territories. Many azulejos chronicle major historical and cultural aspects of Spanish and Portuguese history. History 13th to 15th century The word ''azulejo'' (as well as the Ligurian ''laggion'') is derived ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
