A skyscraper is a tall continuously habitable building having multiple floors. Modern sources define skyscrapers as being at least 100 meters (330 ft) or 150 meters (490 ft) in height, though there is no universally accepted definition, other than being very tall high-rise buildings. Skyscrapers may host offices, hotels, residential spaces, and retail spaces.
A crane is a machine used to move materials both vertically and horizontally, utilizing a system of a boom, hoist, wire ropes or chains, and sheaves for lifting and relocating heavy objects within the swing of its boom. The device uses one or more simple machines, such as the lever and pulley, to create mechanical advantage to do its work. Cranes are commonly employed in transportation for the loading and unloading of freight, in construction for the movement of materials, and in manufacturing for the assembling of heavy equipment.
Ostankino Tower is a television and radio tower in Moscow, Russia, owned by the Moscow branch of unitary enterprise Russian TV and Radio Broadcasting Network. Standing 540.1 metres (1,772 ft), it was designed by Nikolai Nikitin. As of 2022, it is the tallest free-standing structure in Europe and 12th tallest in the world. Between 1967 and 1974, it was the tallest in the world. The tower was the first free-standing structure to exceed 500 m (1,600 ft) in height. Ostankino was built to mark the 50th anniversary of the October Revolution. It is named after the surrounding Ostankino district of Moscow.
Eureka Tower is a 297.3 m (975 ft) skyscraper located in the Southbank precinct of Melbourne, Victoria, Australia. Construction began in August 2002 and the exterior was completed on 1 June 2006. The plaza was finished in June 2006 and the building was officially opened on 11 October 2006. The project was designed by Melbourne architectural firm Fender Katsalidis Architects and was built by Grocon. The developer of the tower was Eureka Tower Pty Ltd, a joint venture consisting of Daniel Grollo (Grocon), investor Tab Fried and one of the Tower's architects Nonda Katsalidis.
A guyed mast is a tall thin vertical structure that depends on guy lines for stability. The mast itself has the compressive strength to support its own weight, but does not have the shear strength to stand unsupported or bear loads. It requires guy lines to stay upright and to resist lateral (shear) forces such as wind loads. Examples include masts on sailing vessels, towers for telecommunications, meteorology, and masts on cranes, power shovels, draglines, and derricks, starting with the simple gin pole.
Enercon GmbH is a wind turbine manufacturer based in Aurich, Lower Saxony, Germany. It has been the market leader in Germany since the mid-1990s. Enercon has production facilities in Germany, Brazil, India, Canada, Turkey and Portugal. In June 2010, Enercon announced that they would be setting up Irish headquarters in Tralee.
The BT Tower, formerly known as the Post Office Tower and the GPO Tower, is a landmark and telecommunications tower in Birmingham, England. It is currently the tallest structure in the city, but is set to be surpassed by the Octagon when it is completed. Its Post Office code was YBMR.
The Federation Tower is a complex of two skyscrapers built on the 13th lot of the Moscow International Business Center in Moscow, Russia. The two skyscrapers are named Tower East or Vostok and Tower West or Zapad.
Tokyo Skytree is a broadcasting and observation tower, located in Sumida, Tokyo, Japan. It is the tallest tower in Japan since opening in 2012, and reached its full height of 634 meters (2,080 ft) in early 2011, making it the tallest tower in the world, displacing the Canton Tower, and the third tallest structure in the world.
The Cuatro Torres Business Area (CTBA), also known as the Área de Negocios de las Cuatro Torres, is a business district located in the Paseo de la Castellana in Madrid, Spain, on the former Ciudad Deportiva of Real Madrid. The area contains the four tallest skyscrapers in Spain, and four of the ten tallest in the European Union: the Torre Emperador, Torre de Cristal, Torre PwC and Torre Cepsa. Construction of the buildings finished in 2008.
A flagpole, flagmast, flagstaff, or staff is a pole designed to support a flag. If it is taller than can be easily reached to raise the flag, a cord is used, looping around a pulley at the top of the pole with the ends tied at the bottom. The flag is fixed to one lower end of the cord, and is then raised by pulling on the other end. The cord is then tightened and tied to the pole at the bottom. The pole is usually topped by a flat plate or ball called a "truck" or a finial in a more complex shape. Very high flagpoles may require more complex support structures than a simple pole, such as a guyed mast.
Fuhrländer Wind Turbine Laasow is a wind turbine, built in 2006 by German wind turbine manufacturer Fuhrländer near the village of Laasow, Brandenburg, Germany. It consists of a 160-metre (520 ft) lattice tower, which carries a rotor 90 metres (300 ft) in diameter. Until two slightly taller wind turbines opened in Poland in 2012, this wind turbine was the tallest wind turbine in the world. Its power output is 2.5 MW.
Wind turbine design is the process of defining the form and configuration of a wind turbine to extract energy from the wind. An installation consists of the systems needed to capture the wind's energy, point the turbine into the wind, convert mechanical rotation into electrical power, and other systems to start, stop, and control the turbine.
The Lakhta Centre is an 87-story skyscraper built in the northwestern neighbourhood of Lakhta in Saint Petersburg, Russia. Standing 462 metres (1,516 ft) tall, it is the tallest building in both Russia and Europe, and the sixteenth-tallest building in the world. It is also the second-tallest structure in Russia and Europe, behind the Ostankino Tower in Moscow, in addition to being the second-tallest twisted building and the northernmost skyscraper in the world.
Schipkau is a municipality in the Oberspreewald-Lausitz district, in Lower Lusatia, Brandenburg, Germany.
St George Wharf Tower, also known as the Vauxhall Tower, is a residential skyscraper in Vauxhall, London, and part of the St George Wharf development. At 181 metres (594 ft) tall with 50 storeys, it is the 20th-tallest building in London and was the tallest residential building in the United Kingdom on its completion.
A floating wind turbine is an offshore wind turbine mounted on a floating structure that allows the turbine to generate electricity in water depths where fixed-foundation turbines are not feasible. Floating wind farms have the potential to significantly increase the sea area available for offshore wind farms, especially in countries with limited shallow waters, such as Spain, Portugal, Japan, France and the United States' West Coast. Locating wind farms further offshore can also reduce visual pollution, provide better accommodation for fishing and shipping lanes, and reach stronger and more consistent winds.
A wind turbine is a device that converts the kinetic energy of wind into electrical energy. As of 2020, hundreds of thousands of large turbines, in installations known as wind farms, were generating over 650 gigawatts of power, with 60 GW added each year. Wind turbines are an increasingly important source of intermittent renewable energy, and are used in many countries to lower energy costs and reduce reliance on fossil fuels. One study claimed that, as of 2009, wind had the "lowest relative greenhouse gas emissions, the least water consumption demands and the most favorable social impacts" compared to photovoltaic, hydro, geothermal, coal and gas energy sources.
The Enercon E-126 is an onshore wind turbine model manufactured by the German company Enercon. With a hub height of 135 m (443 ft), rotor diameter of 126 m (413 ft) and a total height of 198 m (650 ft), the turbine can generate up to 7.58 megawatts of power, making it the largest wind turbine in the world for several years, until it was overtaken in 2014 by the Danish company Vestas with their V164-8.0 turbine. Their model number is a reference to their rotor diameter.
