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Sconce (light Fixture)
A sconce (the word is derived from the late Latin via Old French) is a lamp-holder – either a candlestick or lantern with a handle, or a lamp fixed to a wall. In the latter case the light is usually, but not always, directed upwards and outwards, rather than down. The sconce is a very old form of fixture, historically used with candles and oil lamps. Such modern wall fittings are more often called wall lights or wall lamps. They can provide general room lighting, and are common in hallways and corridors, but they may be mostly decorative. A sconce may be a traditional torch, candle or gaslight, or a modern electric light source affixed in the same way. Usage and history Sconces can be placed on both the interior and exterior walls of buildings. In pre-modern usage, these usually held candles or gas flame, and torches respectively. Historically, candle sconces were often made of silver or brass from the 17th century, with porcelain and ormolu coming into use durin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sconce
Sconce may refer to: *Sconce (fortification), a military fortification *Sconce (light fixture) *Sconcing, imposing a penalty in the form of drink *Sconce Point Fort Victoria is a former military fort on the Isle of Wight, England (), built to guard the Solent. The earliest fort on the site was a coastal fort known as Sharpenode Bulwark built in 1545–1547 by Henry VIII of England, Henry VIII, but thes ... on the Isle of Wight, England People with the surname * Jeffrey Sconce, professor of media * Jerry Sconce, American football coach and criminal * Mark Sconce (born 1968), Welsh footballer {{disambiguation, surname ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sconce On The Strozzi Palace, Florence
Sconce may refer to: *Sconce (fortification), a military fortification *Sconce (light fixture) *Sconcing, imposing a penalty in the form of drink *Sconce Point on the Isle of Wight, England People with the surname *Jeffrey Sconce, professor of media *Jerry Sconce, American football coach and criminal *Mark Sconce (born 1968), Welsh footballer {{disambiguation, surname ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oil Lamp
An oil lamp is a lamp used to produce light continuously for a period of time using an oil-based fuel source. The use of oil lamps began thousands of years ago and continues to this day, although their use is less common in modern times. They work in the same way as a candle but with fuel that is liquid at room temperature, so that a container for the oil is required. A textile wick drops down into the oil, and is lit at the end, burning the oil as it is drawn up the wick. Oil lamps are a form of lighting, and were used as an alternative to candles before the use of electric lights. Starting in 1780, the Argand lamp quickly replaced other oil lamps still in their basic ancient form. These in turn were replaced by the kerosene lamp in about 1850. In small towns and rural areas the latter continued in use well into the 20th century, until such areas were finally electrified and light bulbs could be used. Sources of fuel for oil lamps include a wide variety of plants such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torch
A torch is a stick with combustible material at one end, which is ignited and used as a light source. Torches have been used throughout history, and are still used in processions, symbolic and religious events, and in juggling entertainment. In some countries "torch" in modern usage is the term for a battery-operated portable light. Etymology From the Old French "''torche''" meaning "twisted thing", hence "torch formed of twisted tow dipped in wax", probably from Vulgar Latin *''torca'', alteration of Late Latin ''torqua'', variant of classical Latin ''torques'' "collar of twisted metal", from ''torquere'' "to twist". Torch construction Torch construction has varied through history depending on the torch's purpose. Torches were usually constructed of a wooden stave with one end wrapped in a material which was soaked in a flammable substance. In the United States, black bear bones may have been used. Modern procession torches are made from coarse hessian rolled into a tube ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ormolu
Ormolu (; from French ''or moulu'', "ground/pounded gold") is the gilding technique of applying finely ground, high-carat gold– mercury amalgam to an object of bronze, and for objects finished in this way. The mercury is driven off in a kiln leaving behind a gold coating. The French refer to this technique as "''bronze doré''"; in English, it is known as "gilt bronze". Around 1830, legislation in France had outlawed the use of mercury for health reasons, though use continued to the 1900s. Craftsmen principally used ormolu for the decorative mountings of furniture, clocks, lighting devices, and porcelain. Process The manufacture of true ormolu employs a process known as mercury-gilding or fire-gilding, in which a solution of mercuric nitrate is applied to a piece of copper, brass, or bronze; followed by the application of an amalgam of gold and mercury. The item is then exposed to extreme heat until the mercury vaporizes and the gold remains, adhering to the metal obje ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Light
An electric light, lamp, or light bulb is an electrical component that produces light. It is the most common form of artificial lighting. Lamps usually have a base made of ceramic, metal, glass, or plastic, which secures the lamp in the socket of a light fixture, which is often called a "lamp" as well. The electrical connection to the socket may be made with a screw-thread base, two metal pins, two metal caps or a bayonet cap. The three main categories of electric lights are incandescent lamps, which produce light by a filament heated white-hot by electric current, gas-discharge lamps, which produce light by means of an electric arc through a gas, such as fluorescent lamps, and LED lamps, which produce light by a flow of electrons across a band gap in a semiconductor. Before electric lighting became common in the early 20th century, people used candles, gas lights, oil lamps, and fires. Vasily Vladimirovich Petrov developed the first persistent electric arc in 1802 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Task Lighting
Often task lighting refers to increasing illuminance to better accomplish a specific activity. However, the illuminance level is not the only factor governing visibility. Contrast is also important, and a poorly positioned light source may cause contrast reduction, resulting in loss of visibility. The most important purpose of task lighting in the office is not increasing illuminance, but improving contrast. General lighting can be reduced because task lighting provides focused light where needed. Different strategies for task lighting exist. The three main approaches are: * Localized average lighting, where a lamp supplies both ambient light and task light * Freely adjustable task light such as a gooseneck, balanced-arm lamp, or swing-arm light. * Asymmetric task light, where the lamp is placed at the side of the work area There are also other approaches to task lighting, for example under-shelf luminaires. Other instances of task lighting are in machinery, where a specific wor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slang
Slang is vocabulary (words, phrases, and linguistic usages) of an informal register, common in spoken conversation but avoided in formal writing. It also sometimes refers to the language generally exclusive to the members of particular in-groups in order to establish group identity, exclude outsiders, or both. The word itself came about in the 18th century and has been defined in multiple ways since its conception. Etymology of the word ''slang'' In its earliest attested use (1756), the word ''slang'' referred to the vocabulary of "low" or "disreputable" people. By the early nineteenth century, it was no longer exclusively associated with disreputable people, but continued to be applied to usages below the level of standard educated speech. In Scots dialect it meant "talk, chat, gossip", as used by Aberdeen poet William Scott in 1832: "The slang gaed on aboot their war'ly care." In northern English dialect it meant "impertinence, abusive language". The origin of the word i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Egil's Saga
''Egill's Saga'' or ''Egil's saga'' ( non, Egils saga ; ) is an Icelandic saga (family saga) on the lives of the clan of Egill Skallagrímsson (Anglicised as Egill Skallagrimsson), an Icelandic farmer, viking and skald. The saga spans the years c. 850–1000 and traces the family's history from Egill's grandfather to his offspring. Its oldest manuscript (a fragment) dates back to 1240 AD, and comprises the sole source of information on the exploits of Egill, whose life is not historically recorded. Stylistic and other similarities between ''Egill's Saga'' and ''Heimskringla'' have led many scholars to believe that they were the work of the same author, Snorri Sturluson. The work is generally referred to as ''Egla'' by Icelandic scholars. Synopsis The saga begins in Norway around 850, with the life of Egill's grandfather Ulf ( Úlfr) aka Kveldulf or "Evening Wolf", and his two sons Thorolf (Þórólfr) and Skallagrim ( Skalla-Grímr). Strife with the royal house drive the fam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Light Fixtures
Light or visible light is electromagnetic radiation that can be perceived by the human eye. Visible light is usually defined as having wavelengths in the range of 400–700 nanometres (nm), corresponding to frequencies of 750–420 terahertz, between the infrared (with longer wavelengths) and the ultraviolet (with shorter wavelengths). In physics, the term "light" may refer more broadly to electromagnetic radiation of any wavelength, whether visible or not. In this sense, gamma rays, X-rays, microwaves and radio waves are also light. The primary properties of light are intensity, propagation direction, frequency or wavelength spectrum and polarization. Its speed in a vacuum, 299 792 458 metres a second (m/s), is one of the fundamental constants of nature. Like all types of electromagnetic radiation, visible light propagates by massless elementary particles called photons that represents the quanta of electromagnetic field, and can be analyzed as both waves and particl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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