High Quality Content by WIKIPEDIA articles! Heston Aerodrome was a 1930s airfield located to the west of London, UK, operational between 1929 and 1947. It was situated on the border of the Heston and Cranford areas of Hounslow, Middlesex. In September 1938, the British Prime Minister, Neville Chamberlain, flew from Heston to Germany three times in two weeks for talks with Adolf Hitler, and returned to Heston from the Munich Conference with the paper referred to in his later "Peace for our time" speech from 10 Downing Street.
High Quality Content by WIKIPEDIA articles! A heterojunction is the interface that occurs between two layers or regions of dissimilar crystalline semiconductors. These semiconducting materials have unequal band gaps as opposed to a homojunction. It is often advantageous to engineer the electronic energy bands in many solid state device applications including semiconductor lasers, solar cells and transistors ("heterotransistors") to name a few. The combination of multiple heterojunctions together in a device is called a heterostructure although the two terms are commonly used interchangeably. The requirement that each material be a semiconductor with unequal band gaps is somewhat loose especially on small length scales where electronic...
High Quality Content by WIKIPEDIA articles! The High Level Bridge is a road and railway bridge spanning the River Tyne between Newcastle upon Tyne and Gateshead in North East England.
High Quality Content by WIKIPEDIA articles! Highgate tube station is a London Underground station on Archway Road, Highgate, not far from Highgate Village in north London. It is on the High Barnet branch of the Northern Line, between Archway and East Finchley, in Travelcard Zone 3.
High Quality Content by WIKIPEDIA articles! Highland is a city in San Bernardino County, California, United States. The population in 2010 (US Census) was 53,104, up from 44,605 at the 2000 census. The term Highland also refers to a geographical area of the city of San Bernardino (generally north of Highland Avenue and east of Del Rosa Avenue to the eastern city limits), and parts of unincorporated San Bernardino County.
High Quality Content by WIKIPEDIA articles! The Ontario Ministry of Transportation maintains the system of provincial highways in the Canadian province of Ontario.
High Quality Content by WIKIPEDIA articles! Hinckley Reservoir serves water to 130,000 people in the Greater Utica, New York area. The reservoir is located in the towns of Russia in Herkimer County, and Remsen in Oneida County.
High Quality Content by WIKIPEDIA articles! Hinckley Yachts, founded in 1928, is a manufacturer of luxury sailing yachts and jet-powered picnic boats based in Southwest Harbor, Maine. Known for its innovation of the yachting world, Hinckley has developed such technologies as the JetStick and Dual Guard composite material along with being the pioneer of the fiberglass hull. Currently, Hinckley is operating in seven locations across the United States, making it one of the largest manufacturers of custom, luxury yachts in the United States. Hinckley’s present yacht line includes seven powerboats ranging in size from 29 to 55 feet and seven sailing vessels offered in lengths from 42 to 70 feet. Similar to yachts built by Sabre Yachts,...
High Quality Content by WIKIPEDIA articles! Hinsdale is an affluent western suburb of Chicago, Illinois; a small portion of the eastern part of the village is located in Cook County, and the rest of the village is located in DuPage County in the U.S. state of Illinois. The population was 17,349 at the 2000 census. The town`s ZIP code is 60521. The town has a rolling, wooded topography, with a quaint downtown and is a 22-minute express train ride to downtown Chicago on the Burlington Northern train line. It is listed in the top 1% of wealthiest towns in Illinois, and is known locally for its beautiful residences and teardown culture, of which new rebuilds have taken 30% of homes in the village. There is a rich mix of housing in the...
High Quality Content by WIKIPEDIA articles! The Hiram M. Chittenden Locks is a complex of locks that sits at the west end of Salmon Bay, part of Seattle`s Lake Washington Ship Canal. They are known locally as the Ballard Locks after the neighborhood to the north. (Magnolia lies to the south.)
High Quality Content by WIKIPEDIA articles! The Hirshhorn Museum and Sculpture Garden is an art museum beside the National Mall, in Washington, D.C., the United States. The museum was initially endowed during the 1960s with the permanent art collection of Joseph H. Hirshhorn. It was designed by architect Gordon Bunshaft and is part of the Smithsonian Institution. It was conceived as the United States` museum of contemporary and modern art and currently focuses its collection-building and exhibition-planning mainly on the post–World War II period, with particular emphasis on art made during the last 50 years. Notable artists in the collection include: Pablo Picasso, Henri Matisse, Mary Cassatt, Thomas Eakins, Henry Moore, Jackson...
High Quality Content by WIKIPEDIA articles! This list documents historical bridges located in New South Wales, Australia. Road, rail and pedestrian bridges are listed. Generally bridges built before WWII (1939) have been included in this list.
High Quality Content by WIKIPEDIA articles! People have constructed buildings and other structures since prehistory, including bridges, amphitheatres, dams, electricity pylons, roads and canals. Building materials in present use have a long history and some of the structures built thousands of years ago can still be regarded as remarkable. The history of construction overlaps that of structural engineering. To understand why things were constructed the way they were, we also need to rely on archaeology to record the form of the parts that survive and the tools used, and other branches of history and architecture to investigate how the builders lived and recorded their accomplishments.
High Quality Content by WIKIPEDIA articles! The history of robots has its roots as far back as ancient myths and legends. Modern concepts were begun to be developed when the Industrial Revolution allowed the use of more complex mechanics and the subsequent introduction of electricity made it possible to power machines with small compact motors. After the 1920s the modern formulation of a humanoid machine was developed to the stage where it was possible to envisage human sized robots with the capacity for near human thoughts and movements, first envisaged millennia before.
High Quality Content by WIKIPEDIA articles! Through history, the title of "world`s tallest building" has been borne by various buildings. Since the invention of the skyscraper, New York City was home to the world`s tallest building for roughly 87 years (inside the period of 1870-1974, over nearly a dozen successive buildings). Chicago accumulated 30 years. This distinction was held exclusively within the United States for nearly 130 years (1870-1998) before returning to the eastern hemisphere. Preceding the current era of commercial skyscrapers, there was an era where the tallest buildings were Christian churches/cathedrals (1200s-1870), dominated by England and Germanic territories. And the era preceding this was the thousands of years...
High Quality Content by WIKIPEDIA articles! The history of superconductivity, the property exhibited by certain substances of lacking electrical resistance at temperatures close to absolute zero, began at the end of the 19th century and culminated in Heike Kamerlingh Onnes`s 1911 discovery. The theory surrounding the property of superconductivity was further developed over the course of the 20th century.
High Quality Content by WIKIPEDIA articles! Somalia, from 1991 to 2006, is cited as a real-world example of a stateless society and legal system. Since the fall of Siad Barre`s government in January 1991, there had been no permanent national government in Somalia until the current Transitional Federal Government. Large areas of the country such as Puntland, and Galmudug are internationally unrecognized autonomous regions, while Somaliland is a de facto sovereign state. The remaining areas, including the capital Mogadishu, were divided into smaller territories ruled by competing warlords. In many areas there were (and still are) no formal regulations or licensing requirements for businesses and individuals.
High Quality Content by WIKIPEDIA articles! The history of structural engineering dates back to at least 2700 BC when the step pyramid for Pharaoh Djoser was built by Imhotep, the first engineer in history known by name. Pyramids were the most common major structures built by ancient civilizations because it is a structural form which is inherently stable and can be almost infinitely scaled (as opposed to most other structural forms, which cannot be linearly increased in size in proportion to increased loads).
High Quality Content by WIKIPEDIA articles! The history of Lake Burley Griffin, an artificial body of water in Canberra, the capital of Australia is a long one. Following its initial design in the 1910s, extensive political disputes occurred until it was finally built in the 1960s.