chimney |
closet |
top 10 words in brain distribution (in article): build wood structure wall design form type construction floor city |
top 10 words in brain distribution (in article): build house design wall construction size century refer space common |
top 10 words in brain distribution (not in article): material paint size cell surface window tree frame plastic support |
top 10 words in brain distribution (not in article): material city wood church paint store floor structure state type |
times more probable under chimney 30 20 10 6 4 2.5 1.25 1 1.25 2.5 4 6 10 20 30 times more probable under closet (words not in the model) | |
A chimney'" is a structure for venting hot flue gases or smoke from a boiler, stove, furnace or fireplace to the outside atmosphere. Chimneys are typically vertical, or as near as possible to vertical, to ensure that the gases flow smoothly, drawing air into the combustion in what is known as the stack, or chimney, effect. The space inside a chimney is called a "flue". Chimneys may be found in buildings, steam locomotives and ships. In the US, the term smokestack'" (colloquially, "'stack'") is also used when referring to locomotive chimneys. The term "'funnel'" is generally used for ships' chimneys and sometimes to refer to locomotive chimneys.. Chimneys are tall to increase their draw of air for combustion and to disperse pollutants in the flue gases over a greater area so as to reduce the pollutant concentrations in compliance with regulatory or other limits. History. Romans used tubes inside the walls to draw smoke out of bakeries but real chimneys appeared only in northern Europe in the 12th century. Industrial chimneys became common in the late 18th century. The earliest extant example of an English chimney is at Conisborough Keep in Yorkshire, which dates from 1185 AD. Chimneys have traditionally been built of brick, both in small and large buildings. Early chimneys were of a simple brick construction. Later chimneys were constructed by placing the bricks around tile liners. To control downdrafts venting caps (often called "chimney pots") with a variety of designs are sometimes placed on the top of chimneys. In the eighteenth and nineteenth centuries, the methods used to extract lead from its ore produced large amounts of toxic fumes. In the north of England, long near-horizontal chimneys were built, often more than 3 km (2 mi) long, which typically terminated in a short vertical chimney in a remote location where the fumes would cause less harm. Lead and silver deposits formed on the inside of these long chimneys, and periodically workers would be sent along the chimneys to scrape off these valuable deposits. Construction. Due to brick's limited ability to handle transverse loads, chimneys in houses were often built in a "stack", with a fireplace on each floor of the house sharing a single chimney, often with such a stack at the front and back of the house. Today's central heating systems have made chimney placement less critical, and the use of non-structural gas vent pipe allows a flue gas conduit to be installed around obstructions and through walls. In fact, many modern high-efficiency heating appliances do not require a chimney. Such appliances are typically installed near an outside wall, and a noncombustible wall thimble allows vent pipe to be run directly through the outside wall. Industrial chimneys are commonly referred to as flue gas stacks and are typically external structures, as opposed to being built into the wall of a building. They are generally located adjacent to a steam-generating boiler or industrial furnace and the gases are carried to it with ductwork. Today the use of reinforced concrete has almost entirely replaced brick as a structural component in the construction of industrial chimneys. Refractory bricks are often used as a lining, particularly if the type of fuel being burned generates flue gases containing acids. Modern industrial chimneys sometimes consist of a concrete windshield with a number of flues on the inside. The 300 metre chimney at Sasol Three consists of a 26 metre diameter windshield with four 4.6 metre diameter concrete flues which are lined with refractory bricks built on rings of corbels spaced at 10 metre intervals. The reinforced concrete can be cast by conventional formwork or sliding formwork. The height is to ensure the pollutants are dispersed over a wider area to meet legislative or safety requirements. Chimney tops. A chimney pot is placed on top of the chimney to inexpensively extend the length of the chimney, and to improve the chimney's draft. A chimney with more than one pot on it | A closet'" (especially in North American usage) is a small and enclosed space, a cabinet, or a cupboard in a house or building used for general storage or hanging clothes. A closet for food storage is usually referred to as a "pantry". A closet, through French from Latin "clausum", "closed" began life in the seventeenth century as a small private room, often behind a bedroom, to which a man or woman could retire, for privacy, reading, or enjoyment of personal works of art: for this usage, see Cabinet (architecture). Modern closets can be built into the walls of the house during construction so that they take up no apparent space in the bedroom, or they can be a large, free-standing piece of furniture designed for clothes storage, in which case they are often called a wardrobe or armoire. Closets are often built under stairs, thereby using awkward space that would otherwise go unused. In current British usage, a "wardrobe" can also be built-in, and the word "cupboard" can be used to refer to a closet. In Elizabethan and Middle English, "closet" referred to a larger room in which a person could sit and read in private, but now refers to a small room in general. In Indian usage, a closet often refers to a toilet. This probably originated from the word "water closet", which refers to a flush toilet. In North America, chests, trunks and wall-mounted pegs typically provided storage prior to World War II. Built-in wall closets were uncommon and where they did exist, they tended to be small and shallow. Following World War II, however, deeper, more generously sized closets were introduced to new housing designs, which proved to be very attractive to buyers. It has even been suggested that the closet was a major factor in peoples' migration to the suburbs. Closet tax question in colonial America. Though some sources claim that colonial American houses often lacked closets because of a "closet tax" imposed by the British crown, others argue that closets were absent in most houses simply because their residents had few possessions. Closets in pop culture. Figuratively, a closet is a place where one hides things; "having skeletons in one's closet" is a figure of speech for having particularly sensitive secrets. Thus, "closet" as an adjective means "secret"—usually with a connotation of vice or shame, as in "a closet alcoholic" or "a closet homosexual," though sometimes used as a humorous exaggeration for any potential embarrassment, as in "a closet comic book fan." To "come out of the closet" is to admit your secrets publicly, but this is now used almost exclusively in reference to homosexuality. The documentary "The Celluloid Closet" uses this reference to gay people in its examination of how Hollywood films have depicted homosexuals on the screen. This is also extensively used in a controversial episode of "South Park". Psychologically, bedroom closets are the center of many childhood fears. Children fear during the night that a monster or any other paranormal creature hides inside the closet, and is destined to frighten the child. The Bogeyman is one prominent example. This is a common theme in films. In the first of the "Poltergeist" movies, the closet was the area of the family house the ghosts hid in to kidnap the child. And the "monster in the closet" fear was developed for comedic possibilities in film "Monsters, Inc.", in which monsters teleport into children's closets at night from a central location in order to scare them as a means of collecting screams, which run the monster economy. In the newspaper comic "Bloom County", the character Binkley had an "anxiety closet" in his bedroom, from which his fears would manifest themselves, while he was sleeping. For example, a librarian wielding a battle-axe, which then struck the headboard of his bed, attacked due to an overdue library book. Similarly, Opus the penguin from the Sunday strip Opus also has a closet which houses his worries. |