Building materialBuilding material is material used for construction. Many naturally occurring substances, such as clay, rocks, sand, wood, and even twigs and leaves, have been used to construct buildings. Apart from naturally occurring materials, many man-made products are in use, some more and some less synthetic. The manufacturing of building materials is an established industry in many countries and the use of these materials is typically segmented into specific specialty trades, such as carpentry, insulation, plumbing, and roofing work.
DrawingDrawing is a visual art that uses an instrument to mark paper or another two-dimensional surface. The instrument might be pencils, crayons, pens with inks, brushes with paints, or combinations of these, and in more modern times, computer styluses with graphics tablets. A drawing instrument releases a small amount of material onto a surface, leaving a visible mark. The most common support for drawing is paper, although other materials, such as cardboard, vellum, wood, plastic, leather, canvas, and board, have been used.
Terraced houseA terrace or terraced house (UK) or townhouse (US) is an architectural term for a form of medium-density housing that first started in 16th century Europe with a row of joined houses sharing side walls. In the United States and Canada these are known as row houses or row homes, commonly found in older cities such as Philadelphia, Baltimore, and Toronto. Terrace housing can be found worldwide, though it is quite common in Europe and Latin America, and many examples can be found in the United Kingdom, United States, Canada, and Australia.
Web archivingWeb archiving is the process of collecting portions of the World Wide Web to ensure the information is preserved in an archive for future researchers, historians, and the public. Web archivists typically employ web crawlers for automated capture due to the massive size and amount of information on the Web. The largest web archiving organization based on a bulk crawling approach is the Wayback Machine, which strives to maintain an archive of the entire Web.
Formal power seriesIn mathematics, a formal series is an infinite sum that is considered independently from any notion of convergence, and can be manipulated with the usual algebraic operations on series (addition, subtraction, multiplication, division, partial sums, etc.). A formal power series is a special kind of formal series, whose terms are of the form where is the th power of a variable ( is a non-negative integer), and is called the coefficient.
Housing tenureHousing tenure is a financial arrangement and ownership structure under which someone has the right to live in a house or apartment. The most frequent forms are tenancy, in which rent is paid by the occupant to a landlord, and owner-occupancy, where the occupant owns their own home. Mixed forms of tenure are also possible. The basic forms of tenure can be subdivided, for example an owner-occupier may own a house outright, or it may be mortgaged.
Domestic policyDomestic policy is a type of public policy overseeing administrative decisions that are directly related to all issues and activity within a state's borders. It differs from foreign policy, which refers to the ways a government advances its interests in external politics. Domestic policy covers a wide range of areas, including business, education, energy, healthcare, law enforcement, money and taxes, natural resources, social welfare, and personal rights and freedoms.
Self-helpSelf-help or self-improvement is a self-guided improvement—economically, physically, intellectually, and emotionally—often with a substantial psychological basis. When engaged in self-help, people often use publicly available information or support groups, on the Internet as well as in person, where people in similar situations join together. From early examples in self-driven legal practice and home-spun advice, the connotations of the word have spread and often apply particularly to education, business, exercise, psychology and psychotherapy, commonly distributed through the popular genre of self-help books.
Roof gardenA roof garden is a garden on the roof of a building. Besides the decorative benefit, roof plantings may provide food, temperature control, hydrological benefits, architectural enhancement, habitats or corridors for wildlife, recreational opportunities, and in large scale it may even have ecological benefits. The practice of cultivating food on the rooftop of buildings is sometimes referred to as rooftop farming. Rooftop farming is usually done using green roof, hydroponics, aeroponics or air-dynaponics systems or container gardens.
