High-tech architecture known as Structural Expressionism, is a type of Late Modern architectural style that emerged in the 1970s, incorporating elements of high-tech industry and technology into building design. High-tech architecture appeared as revamped modernism, an extension of those previous ideas helped by more technological advances; this category serves as a bridge between post-modernism. In the 1980s, high-tech architecture became more difficult to distinguish from post-modern architecture; some of its themes and ideas were absorbed into the style of Neo-Futurism art and architectural movement. Like Brutalism, Structural Expressionist buildings reveal their structure on the outside as well as the inside, but with visual emphasis placed on the internal steel and/or concrete skeletal structure as opposed to exterior concrete walls. In buildings such as the Pompidou Centre, this idea of revealed structure is taken to the extreme, with structural components serving little or no structural role.
In this case, the use of "structural" steel is a aesthetic matter. The style's premier practitioners include Colombo-American architect Bruce Graham and Bangladeshi-American architect Fazlur Rahman Khan for the John Hancock Centre, Willis Tower and Onterie Center, British architects Sir Norman Foster, Sir Richard Rogers, Sir Michael Hopkins, Italian architect Renzo Piano and Spanish architect Santiago Calatrava, known for his organic, skeleton-like designs. Early high-tech buildings were referred to by historian Reyner Banham as "serviced sheds" due to their exposure of mechanical services in addition to the structure. Most of these early examples used exposed structural steel as their material of choice; as hollow structural sections had only become available in the early 1970s, high-tech architecture saw much experimentation with this material. Buildings in this architectural style were constructed in North America and Europe, it is connected with what is called the Second School of Chicago which emerged after World War II.
The main content is that the technological kind of construction with steel and glass, is expressed in a formal independent way to gain aesthetic qualities from it. The first proper example is the 860-880 Lake Shore Drive Apartments by German architect Ludwig Mies van der Rohe; the style got its name from the book High Tech: The Industrial Style and Source Book for The Home, written by design journalists Joan Kron and Suzanne Slesin and published in November 1978 by Clarkson N. Potter, New York; the book, illustrated with hundreds of photos, showed how designers and homeowners were appropriating classic industrial objects—library shelving, chemical glass, metal deck plate, restaurant supply and airport runway light fixtures, movers' quilts, industrial carpeting etc.—found in industrial catalogues and putting these to use in residential settings. The foreword to the book by architect Emilio Ambasz, former curator of design at the Museum of Modern Art, put the trend in historical context; as a result of the publicity and popularity of the book, the decorating style became known as "High-Tech", accelerated the entry of the still-obscure term "high-tech" into everyday language.
In 1979, the term high-tech appeared for the first time in a New Yorker magazine cartoon showing a woman berating her husband for not being high-tech enough: "You're middle-, middle-, middle-tech." After Esquire excerpted Kron and Slesin's book in six instalments, mainstream retailers across the United States, beginning with Macy's New York, started featuring high-tech decor in windows and in furniture departments. But credit should go to a shop on 64th Street and Lexington Avenue in New York, Ad Hoc Housewares, which opened in 1977, for marketing these objects to a residential audience before anyone else; the book went on to be reprinted in England and Japan, like the original, each edition included a directory of local sources for the objects. The high-tech architecture was, in some ways, a response to growing disillusionment with modern architecture; the realization of Le Corbusier's urban development plans led to cities with monotonous and standardized buildings. Enthusiasm for economic building led to low-quality finishes, with subsequent degradation countering a now-waning aesthetic novelty.
High-tech architecture created a new aesthetic in contrast with standard modern architecture. In High Tech: The Industrial Style and Source Book for The Home, when discussing the high-tech aesthetic, the authors emphasized using elements "your parents might find insulting"; this humour so aptly demonstrates the rebellious attitude. Kron and Slesin further explain the term "high-tech" as one being used in architectural circles to describe an increasing number of residences and public buildings with a "nuts-and-bolts, exposed-pipes, technological look". A prime example of this is the Centre Pompidou in Paris; this highlights one of the aims of high-tech architecture, to show the technical elements of the building by externalizing them. Thus, the technical aspects create the building's aesthetic. For interior design, there was a trend of using industrial appliances as household objects, e.g. chemical beakers as vases for flowers. This was because of an aim to use an industrial aesthetic; this was assisted by the conversion of former industrial spaces into residential spaces.
High-tech architecture aimed to give everything an industrial appearance. Another aspect of the aims of high-tech architecture was that of a renewed belief in the power of technology to improve the world; this is evident in Kenzo Tange's plans for technically sophisticated buildings in Japan's post-war
International Highrise Award
The International Highrise Award is an international award in architectural design. The award is bestowed to a structure that combines exemplary sustainability, external shape and internal spatial quality, not to mention social aspects, to create a model design. Initiated in 2003 by the City of Frankfurt, German Architecture Museum and DekaBank it is granted in Frankfurt am Main every two years; the prize, a statuette and EUR 50,000 is awarded to the developers jointly. Michaela Busenkell, Peter Cachola Schmal: Best Highrises 2012/2013: Internationaler Hochhauspreis / The International Highrise Award 2012. Katalog zur Ausstellung im Deutschen Architekturmuseum Frankfurt am Main vom 17. November 2012 bis 13. Januar 2013. Edition Detail, München 2012, ISBN 978-3-920034-70-6. Official website Offizielle Seite zum Internationalen Hochhauspreis Internationaler Hochhaus Preis - DekaBank
Madrid is the capital of Spain and the largest municipality in both the Community of Madrid and Spain as a whole. The city has 3.3 million inhabitants and a metropolitan area population of 6.5 million. It is the third-largest city in the European Union, smaller than only London and Berlin, its monocentric metropolitan area is the third-largest in the EU, smaller only than those of London and Paris; the municipality covers 604.3 km2. Madrid lies on the River Manzanares in the Community of Madrid; as the capital city of Spain, seat of government, residence of the Spanish monarch, Madrid is the political and cultural centre of the country. The current mayor is Manuela Carmena from the party Ahora Madrid; the Madrid urban agglomeration has the third-largest GDP in the European Union and its influence in politics, entertainment, media, science and the arts all contribute to its status as one of the world's major global cities. Madrid is home to Real Madrid and Atlético Madrid. Due to its economic output, high standard of living, market size, Madrid is considered the leading economic hub of the Iberian Peninsula and of Southern Europe.
It hosts the head offices of the vast majority of major Spanish companies, such as Telefónica, IAG or Repsol. Madrid is the 10th most liveable city in the world according to Monocle magazine, in its 2017 index. Madrid houses the headquarters of the World Tourism Organization, belonging to the United Nations Organization, the Ibero-American General Secretariat, the Organization of Ibero-American States, the Public Interest Oversight Board, it hosts major international regulators and promoters of the Spanish language: the Standing Committee of the Association of Spanish Language Academies, headquarters of the Royal Spanish Academy, the Cervantes Institute and the Foundation of Urgent Spanish. Madrid organises fairs such as ARCO, SIMO TCI and the Madrid Fashion Week. While Madrid possesses modern infrastructure, it has preserved the look and feel of many of its historic neighbourhoods and streets, its landmarks include the Royal Palace of Madrid. Cibeles Palace and Fountain have become one of the monument symbols of the city.
مجريط Majrīṭ is the first documented reference to the city. It is recorded in Andalusi Arabic during the al-Andalus period; the name Magerit was retained in Medieval Spanish. The most ancient recorded name of the city "Magerit" comes from the name of a fortress built on the Manzanares River in the 9th century AD, means "Place of abundant water" in Arabic. A wider number of theories have been formulated on possible earlier origins. According to legend, Madrid was founded by Ocno Bianor and was named "Metragirta" or "Mantua Carpetana". Others contend that the original name of the city was "Ursaria", because of the many bears that were to be found in the nearby forests, together with the strawberry tree, have been the emblem of the city since the Middle Ages, it is speculated that the origin of the current name of the city comes from the 2nd century BC. The Roman Empire established a settlement on the banks of the Manzanares river; the name of this first village was "Matrice". Following the invasions carried out by the Germanic Sueves and Vandals, as well as the Sarmatic Alans during the 5th century AD, the Roman Empire no longer had the military presence required to defend its territories on the Iberian Peninsula, as a consequence, these territories were soon occupied by the Vandals, who were in turn dispelled by the Visigoths, who ruled Hispania in the name of the Roman emperor taking control of "Matrice".
In the 8th century, the Islamic conquest of the Iberian Peninsula saw the name changed to "Mayrit", from the Arabic term ميرا Mayra and the Ibero-Roman suffix it that means'place'. The modern "Madrid" evolved from the Mozarabic "Matrit", still in the Madrilenian gentilic. Although the site of modern-day Madrid has been occupied since prehistoric times, there are archaeological remains of Carpetani settlement, Roman villas, a Visigoth basilica near the church of Santa María de la Almudena and three Visigoth necropoleis near Casa de Campo, Tetúan and Vicálvaro, the first historical document about the existence of an established settlement in Madrid dates from the Muslim age. At the second half of the 9th century, Emir Muhammad I of Córdoba built a fortress on a headland near the river Manzanares, as one of the many fortresses he ordered to be built on the border between Al-Andalus and the kingdoms of León and Castile, with the objective of protecting Toledo from the Christian invasions and as a starting point for Muslim offensives.
After the disintegration of t
London is the capital and largest city of both England and the United Kingdom. Standing on the River Thames in the south-east of England, at the head of its 50-mile estuary leading to the North Sea, London has been a major settlement for two millennia. Londinium was founded by the Romans; the City of London, London's ancient core − an area of just 1.12 square miles and colloquially known as the Square Mile − retains boundaries that follow its medieval limits. The City of Westminster is an Inner London borough holding city status. Greater London is governed by the Mayor of the London Assembly. London is considered to be one of the world's most important global cities and has been termed the world's most powerful, most desirable, most influential, most visited, most expensive, sustainable, most investment friendly, most popular for work, the most vegetarian friendly city in the world. London exerts a considerable impact upon the arts, education, fashion, healthcare, professional services and development, tourism and transportation.
London ranks 26 out of 300 major cities for economic performance. It is one of the largest financial centres and has either the fifth or sixth largest metropolitan area GDP, it is the most-visited city as measured by international arrivals and has the busiest city airport system as measured by passenger traffic. It is the leading investment destination, hosting more international retailers and ultra high-net-worth individuals than any other city. London's universities form the largest concentration of higher education institutes in Europe. In 2012, London became the first city to have hosted three modern Summer Olympic Games. London has a diverse range of people and cultures, more than 300 languages are spoken in the region, its estimated mid-2016 municipal population was 8,787,892, the most populous of any city in the European Union and accounting for 13.4% of the UK population. London's urban area is the second most populous in the EU, after Paris, with 9,787,426 inhabitants at the 2011 census.
The population within the London commuter belt is the most populous in the EU with 14,040,163 inhabitants in 2016. London was the world's most populous city from c. 1831 to 1925. London contains four World Heritage Sites: the Tower of London. Other landmarks include Buckingham Palace, the London Eye, Piccadilly Circus, St Paul's Cathedral, Tower Bridge, Trafalgar Square and The Shard. London has numerous museums, galleries and sporting events; these include the British Museum, National Gallery, Natural History Museum, Tate Modern, British Library and West End theatres. The London Underground is the oldest underground railway network in the world. "London" is an ancient name, attested in the first century AD in the Latinised form Londinium. Over the years, the name has attracted many mythicising explanations; the earliest attested appears in Geoffrey of Monmouth's Historia Regum Britanniae, written around 1136. This had it that the name originated from a supposed King Lud, who had taken over the city and named it Kaerlud.
Modern scientific analyses of the name must account for the origins of the different forms found in early sources Latin, Old English, Welsh, with reference to the known developments over time of sounds in those different languages. It is agreed; this was adapted into Latin as Londinium and borrowed into Old English, the ancestor-language of English. The toponymy of the Common Brythonic form is much debated. A prominent explanation was Richard Coates's 1998 argument that the name derived from pre-Celtic Old European *lowonida, meaning "river too wide to ford". Coates suggested that this was a name given to the part of the River Thames which flows through London. However, most work has accepted a Celtic origin for the name, recent studies have favoured an explanation along the lines of a Celtic derivative of a proto-Indo-European root *lendh-, combined with the Celtic suffix *-injo- or *-onjo-. Peter Schrijver has suggested, on these grounds, that the name meant'place that floods'; until 1889, the name "London" applied to the City of London, but since it has referred to the County of London and Greater London.
"London" is sometimes written informally as "LDN". In 1993, the remains of a Bronze Age bridge were found on the south foreshore, upstream of Vauxhall Bridge; this bridge either reached a now lost island in it. Two of those timbers were radiocarbon dated to between 1750 BC and 1285 BC. In 2010 the foundations of a large timber structure, dated to between 4800 BC and 4500 BC, were found on the Thames's south foreshore, downstream of Vauxhall Bridge; the function of the mesolithic structure is not known. Both structures are on the south bank. Although there is evidence of scattered Brythonic settlements in the area, the first major settlement was founded by the Romans about four years after the invasion
A light-emitting diode is a semiconductor light source that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons; this effect is called electroluminescence. The color of the light is determined by the energy required for electrons to cross the band gap of the semiconductor. White light is obtained by using multiple semiconductors or a layer of light-emitting phosphor on the semiconductor device. Appearing as practical electronic components in 1962, the earliest LEDs emitted low-intensity infrared light. Infrared LEDs are used in remote-control circuits, such as those used with a wide variety of consumer electronics; the first visible-light LEDs were of low intensity and limited to red. Modern LEDs are available across the visible and infrared wavelengths, with high light output. Early LEDs were used as indicator lamps, replacing small incandescent bulbs, in seven-segment displays. Recent developments have produced white-light LEDs suitable for room lighting.
LEDs have led to new displays and sensors, while their high switching rates are useful in advanced communications technology. LEDs have many advantages over incandescent light sources, including lower energy consumption, longer lifetime, improved physical robustness, smaller size, faster switching. Light-emitting diodes are used in applications as diverse as aviation lighting, automotive headlamps, general lighting, traffic signals, camera flashes, lighted wallpaper and medical devices. Unlike a laser, the color of light emitted from an LED is neither coherent nor monochromatic, but the spectrum is narrow with respect to human vision, functionally monochromatic. Electroluminescence as a phenomenon was discovered in 1907 by the British experimenter H. J. Round of Marconi Labs, using a crystal of silicon carbide and a cat's-whisker detector. Russian inventor Oleg Losev reported creation of the first LED in 1927, his research was distributed in Soviet and British scientific journals, but no practical use was made of the discovery for several decades.
In 1936, Georges Destriau observed that electroluminescence could be produced when zinc sulphide powder is suspended in an insulator and an alternating electrical field is applied to it. In his publications, Destriau referred to luminescence as Losev-Light. Destriau worked in the laboratories of Madame Marie Curie an early pioneer in the field of luminescence with research on radium. Hungarian Zoltán Bay together with György Szigeti pre-empted led lighting in Hungary in 1939 by patented a lighting device based on SiC, with an option on boron carbide, that emmitted white, yellowish white, or greenish white depending on impurities present. Kurt Lehovec, Carl Accardo, Edward Jamgochian explained these first light-emitting diodes in 1951 using an apparatus employing SiC crystals with a current source of battery or pulse generator and with a comparison to a variant, crystal in 1953. Rubin Braunstein of the Radio Corporation of America reported on infrared emission from gallium arsenide and other semiconductor alloys in 1955.
Braunstein observed infrared emission generated by simple diode structures using gallium antimonide, GaAs, indium phosphide, silicon-germanium alloys at room temperature and at 77 kelvins. In 1957, Braunstein further demonstrated that the rudimentary devices could be used for non-radio communication across a short distance; as noted by Kroemer Braunstein "…had set up a simple optical communications link: Music emerging from a record player was used via suitable electronics to modulate the forward current of a GaAs diode. The emitted light was detected by a PbS diode some distance away; this signal was played back by a loudspeaker. Intercepting the beam stopped the music. We had a great deal of fun playing with this setup." This setup presaged the use of LEDs for optical communication applications. In September 1961, while working at Texas Instruments in Dallas, James R. Biard and Gary Pittman discovered near-infrared light emission from a tunnel diode they had constructed on a GaAs substrate. By October 1961, they had demonstrated efficient light emission and signal coupling between a GaAs p-n junction light emitter and an electrically isolated semiconductor photodetector.
On August 8, 1962, Biard and Pittman filed a patent titled "Semiconductor Radiant Diode" based on their findings, which described a zinc-diffused p–n junction LED with a spaced cathode contact to allow for efficient emission of infrared light under forward bias. After establishing the priority of their work based on engineering notebooks predating submissions from G. E. Labs, RCA Research Labs, IBM Research Labs, Bell Labs, Lincoln Lab at MIT, the U. S. patent office issued the two inventors the patent for the GaAs infrared light-emitting diode, the first practical LED. After filing the patent, Texas Instruments began a project to manufacture infrared diodes. In October 1962, TI announced the first commercial LED product, which employed a pure GaAs crystal to emit an 890 nm light output. In October 1963, TI announced the first commercial hemispherical LED, the SNX-110; the first visible-spectrum LED was developed in 1962 by Nick Holonyak, Jr. while working at General Electric. Holonyak first reported his LED in the journal Applied Physics Letters on December 1, 1962.
M. George Craford, a former graduate student of Holonyak, invented the first yellow LED and improved the brightness of red and red-orange LEDs by a factor of ten in 1972. In 1976, T. P. Pearsall created the first high-brightness, high-efficiency LEDs for optical fiber telecommunicat
Sydney is the state capital of New South Wales and the most populous city in Australia and Oceania. Located on Australia's east coast, the metropolis surrounds Port Jackson and extends about 70 km on its periphery towards the Blue Mountains to the west, Hawkesbury to the north, the Royal National Park to the south and Macarthur to the south-west. Sydney is made up of 40 local government areas and 15 contiguous regions. Residents of the city are known as "Sydneysiders"; as of June 2017, Sydney's estimated metropolitan population was 5,230,330 and is home to 65% of the state's population. Indigenous Australians have inhabited the Sydney area for at least 30,000 years, thousands of engravings remain throughout the region, making it one of the richest in Australia in terms of Aboriginal archaeological sites. During his first Pacific voyage in 1770, Lieutenant James Cook and his crew became the first Europeans to chart the eastern coast of Australia, making landfall at Botany Bay and inspiring British interest in the area.
In 1788, the First Fleet of convicts, led by Arthur Phillip, founded Sydney as a British penal colony, the first European settlement in Australia. Phillip named the city Sydney in recognition of 1st Viscount Sydney. Penal transportation to New South Wales ended soon after Sydney was incorporated as a city in 1842. A gold rush occurred in the colony in 1851, over the next century, Sydney transformed from a colonial outpost into a major global cultural and economic centre. After World War II, it experienced mass migration and became one of the most multicultural cities in the world. At the time of the 2011 census, more than 250 different languages were spoken in Sydney. In the 2016 Census, about 35.8% of residents spoke a language other than English at home. Furthermore, 45.4% of the population reported having been born overseas, making Sydney the 3rd largest foreign born population of any city in the world after London and New York City, respectively. Despite being one of the most expensive cities in the world, the 2018 Mercer Quality of Living Survey ranks Sydney tenth in the world in terms of quality of living, making it one of the most livable cities.
It is classified as an Alpha+ World City by Globalization and World Cities Research Network, indicating its influence in the region and throughout the world. Ranked eleventh in the world for economic opportunity, Sydney has an advanced market economy with strengths in finance and tourism. There is a significant concentration of foreign banks and multinational corporations in Sydney and the city is promoted as Australia's financial capital and one of Asia Pacific's leading financial hubs. Established in 1850, the University of Sydney is Australia's first university and is regarded as one of the world's leading universities. Sydney is home to the oldest library in Australia, State Library of New South Wales, opened in 1826. Sydney has hosted major international sporting events such as the 2000 Summer Olympics; the city is among the top fifteen most-visited cities in the world, with millions of tourists coming each year to see the city's landmarks. Boasting over 1,000,000 ha of nature reserves and parks, its notable natural features include Sydney Harbour, the Royal National Park, Royal Botanic Garden and Hyde Park, the oldest parkland in the country.
Built attractions such as the Sydney Harbour Bridge and the World Heritage-listed Sydney Opera House are well known to international visitors. The main passenger airport serving the metropolitan area is Kingsford-Smith Airport, one of the world's oldest continually operating airports. Established in 1906, Central station, the largest and busiest railway station in the state, is the main hub of the city's rail network; the first people to inhabit the area now known as Sydney were indigenous Australians having migrated from northern Australia and before that from southeast Asia. Radiocarbon dating suggests human activity first started to occur in the Sydney area from around 30,735 years ago. However, numerous Aboriginal stone tools were found in Western Sydney's gravel sediments that were dated from 45,000 to 50,000 years BP, which would indicate that there was human settlement in Sydney earlier than thought; the first meeting between the native people and the British occurred on 29 April 1770 when Lieutenant James Cook landed at Botany Bay on the Kurnell Peninsula and encountered the Gweagal clan.
He noted in his journal that they were somewhat hostile towards the foreign visitors. Cook was not commissioned to start a settlement, he spent a short time collecting food and conducting scientific observations before continuing further north along the east coast of Australia and claiming the new land he had discovered for Britain. Prior to the arrival of the British there were 4,000 to 8,000 native people in Sydney from as many as 29 different clans; the earliest British settlers called the natives Eora people. "Eora" is the term the indigenous population used to explain their origins upon first contact with the British. Its literal meaning is "from this place". Sydney Cove from Port Jackson to Petersham was inhabited by the Cadigal clan; the principal language groups were Darug and Dharawal. The earliest Europeans to visit the area noted that the indigenous people were conducting activities such as camping and fishing, using trees for bark and food, collecting shells, cooking fish. Britain—before that, England—and Ireland had for a long time been sending their convicts across the Atlantic to the American colonies.
That trade was ended with the Declaration of Independence by the United States in 1776. Britain decided in 1786 to found a new penal outpost in the territory discovered by Cook some 16 years ear