145-779: The National Stadium ( 国家体育场 ), a.k.a. the Bird's Nest ( 鸟巢 ), is a stadium at Olympic Green in Chaoyang , Beijing , China . The National Stadium, covering an area of 204,000 square meters with 91,000 capacity, broke ground in December 2003, officially started construction in March 2004, and was completed in June 2008. The National Stadium is owned and operated by a partnership company between Beijing Municipal State-owned Assets Management Co Ltd (58%) and CITIC Group (42%). The stadium
290-539: A tensegrity structure . But, in the context of sports stadiums, the term "dome" has become standard for all covered stadiums, particularly because the first such enclosed stadium, the Houston Astrodome , was built with an actual dome-shaped roof. Some stadiums have partial roofs, and a few have even been designed to have moveable fields as part of the infrastructure. The Caesars Superdome in New Orleans
435-729: A tsunami . Earthquakes can trigger landslides . Earthquakes' occurrence is influenced by tectonic movements along faults, including normal, reverse (thrust), and strike-slip faults, with energy release and rupture dynamics governed by the elastic-rebound theory . Efforts to manage earthquake risks involve prediction, forecasting, and preparedness, including seismic retrofitting and earthquake engineering to design structures that withstand shaking. The cultural impact of earthquakes spans myths, religious beliefs, and modern media, reflecting their profound influence on human societies. Similar seismic phenomena, known as marsquakes and moonquakes , have been observed on other celestial bodies, indicating
580-445: A bird's nest is very expensive, something you eat on special occasions." Construction of the stadium proceeded in several distinct phases, the first phase involving the construction of a concrete supporting structure upon the concrete foundations laid for the construction site. This was followed by the phased installation of the curved steel frame surrounding the stadium, which is largely self-supporting. This phased installation involved
725-571: A depth of less than 70 km (43 mi) are classified as "shallow-focus" earthquakes, while those with a focal depth between 70 and 300 km (43 and 186 mi) are commonly termed "mid-focus" or "intermediate-depth" earthquakes. In subduction zones, where older and colder oceanic crust descends beneath another tectonic plate, deep-focus earthquakes may occur at much greater depths (ranging from 300 to 700 km (190 to 430 mi)). These seismically active areas of subduction are known as Wadati–Benioff zones . Deep-focus earthquakes occur at
870-488: A depth where the subducted lithosphere should no longer be brittle, due to the high temperature and pressure. A possible mechanism for the generation of deep-focus earthquakes is faulting caused by olivine undergoing a phase transition into a spinel structure. Earthquakes often occur in volcanic regions and are caused there, both by tectonic faults and the movement of magma in volcanoes . Such earthquakes can serve as an early warning of volcanic eruptions, as during
1015-475: A few exceptions to this: Supershear earthquake ruptures are known to have propagated at speeds greater than the S wave velocity. These have so far all been observed during large strike-slip events. The unusually wide zone of damage caused by the 2001 Kunlun earthquake has been attributed to the effects of the sonic boom developed in such earthquakes. Slow earthquake ruptures travel at unusually low velocities. A particularly dangerous form of slow earthquake
1160-405: A few municipally owned stadiums, which are often known by a name that is significant to their area (for example, Boston 's Fenway Park ). In recent years, some government-owned stadiums have also been subject to naming-rights agreements, with some or all of the revenue often going to the team(s) that play there. One consequence of corporate naming has been an increase in stadium name changes, when
1305-490: A fireworks display. Upon its completion the stadium was the first joint purpose-built football stadium in the world. The architect Archibald Leitch brought his experience with the construction of industrial buildings to bear on the design of functional stadiums up and down the country. His work encompassed the first 40 years of the 20th century. One of his most notable designs was Old Trafford in Manchester. The ground
1450-403: A football pitch with a running track , although certain compromises must be made. The major drawback is that the stands are necessarily set back a good distance from the pitch, especially at the ends of the pitch. In the case of some smaller stadiums, there are not stands at the ends. When there are stands all the way around, the stadium takes on an oval shape. When one end is open, the stadium has
1595-452: A growing game. All of the 19th-century wooden parks were replaced, some after a few years, and none survive today. Goodison Park was the first purpose-built association football stadium in the world. Walton -based building firm Kelly brothers were instructed to erect two uncovered stands that could each accommodate 4,000 spectators. A third covered stand accommodating 3,000 spectators was also requested. Everton officials were impressed with
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#17327982308001740-471: A horseshoe shape. All three configurations (open, oval and horseshoe) are common, especially in the case of American college football stadiums. Rectangular stadiums are more common in Europe, especially for football where many stadiums have four often distinct and very different stands on the four sides of the stadium. These are often all of different sizes and designs and have been erected at different periods in
1885-503: A hotel are planned to be constructed to increase use of the stadium, which has had trouble attracting events, football and otherwise, after the Olympics. In 2001, before Beijing had been awarded the games, the city held a bidding process to select the best arena design. Multiple requirements including the ability for post-Olympics use, a retractable roof , and incredibly low maintenance costs, were required of each design. The entry list
2030-612: A particular location in the Earth is the average rate of seismic energy release per unit volume. One of the most devastating earthquakes in recorded history was the 1556 Shaanxi earthquake , which occurred on 23 January 1556 in Shaanxi , China. More than 830,000 people died. Most houses in the area were yaodongs —dwellings carved out of loess hillsides—and many victims were killed when these structures collapsed. The 1976 Tangshan earthquake , which killed between 240,000 and 655,000 people,
2175-402: A particular time. The seismicity at a particular location in the Earth is the average rate of seismic energy release per unit volume. In its most general sense, the word earthquake is used to describe any seismic event that generates seismic waves. Earthquakes can occur naturally or be induced by human activities, such as mining , fracking , and nuclear tests . The initial point of rupture
2320-765: A single rupture) are approximately 1,000 km (620 mi). Examples are the earthquakes in Alaska (1957) , Chile (1960) , and Sumatra (2004) , all in subduction zones. The longest earthquake ruptures on strike-slip faults, like the San Andreas Fault ( 1857 , 1906 ), the North Anatolian Fault in Turkey ( 1939 ), and the Denali Fault in Alaska ( 2002 ), are about half to one third as long as
2465-522: A single sport while others can accommodate different events, particularly ones with retractable seating . Stadiums built specifically for association football are common in Europe; Gaelic games stadiums, such as Croke Park , are common in Ireland, while stadiums built specifically for baseball or American football are common in the United States. The most common multiple use design combines
2610-408: A tourist attraction, while hosting sports and entertainment events. However, by 2013 the stadium had fallen into visual disrepair and was criticized as appearing rusty and neglected by visitors to Beijing. In 2009, the stadium was the site of a Pit Stop for the double-length penultimate leg in the 14th season of The Amazing Race . In 2010, an Olympic-themed Detour was held here in the fifth leg of
2755-439: Is a place or venue for (mostly) outdoor sports, concerts, or other events and consists of a field or stage completely surrounded by a tiered structure designed to allow spectators to stand or sit and view the event. Pausanias noted that for about half a century the only event at the ancient Greek Olympic festival was the race that comprised one length of the stadion at Olympia , where the word "stadium" originated. Most of
2900-525: Is a theory that earthquakes can recur in a regular pattern. Earthquake clustering has been observed, for example, in Parkfield, California where a long-term research study is being conducted around the Parkfield earthquake cluster. An aftershock is an earthquake that occurs after a previous earthquake, the mainshock. Rapid changes of stress between rocks, and the stress from the original earthquake are
3045-680: Is a true dome structure made of a lamellar multi-ringed frame and has a diameter of 680 feet (210 m). It is the largest fixed domed structure in the world. Even though enclosed, dome stadiums are called stadiums because they are large enough for, and designed for, what are generally considered to be outdoor sports such as athletics, American football , association football , rugby , and baseball . Those designed for what are usually indoor sports like basketball, ice hockey and volleyball are generally called arenas . Exceptions include: Different sports require different playing surfaces of various size and shape. Some stadiums are designed primarily for
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#17327982308003190-410: Is called the hypocenter or focus, while the ground level directly above it is the epicenter . Earthquakes are primarily caused by geological faults , but also by volcanic activity , landslides, and other seismic events. The frequency, type, and size of earthquakes in an area define its seismic activity, reflecting the average rate of seismic energy release. Significant historical earthquakes include
3335-524: Is converted into heat generated by friction. Therefore, earthquakes lower the Earth's available elastic potential energy and raise its temperature, though these changes are negligible compared to the conductive and convective flow of heat out from the Earth's deep interior. There are three main types of fault, all of which may cause an interplate earthquake : normal, reverse (thrust), and strike-slip. Normal and reverse faulting are examples of dip-slip, where
3480-400: Is divided into 754 Flinn–Engdahl regions (F-E regions), which are based on political and geographical boundaries as well as seismic activity. More active zones are divided into smaller F-E regions whereas less active zones belong to larger F-E regions. Standard reporting of earthquakes includes its magnitude , date and time of occurrence, geographic coordinates of its epicenter , depth of
3625-545: Is probably a statistical fluctuation rather than a systematic trend. More detailed statistics on the size and frequency of earthquakes is available from the United States Geological Survey. A recent increase in the number of major earthquakes has been noted, which could be explained by a cyclical pattern of periods of intense tectonic activity, interspersed with longer periods of low intensity. However, accurate recordings of earthquakes only began in
3770-423: Is proportional to the area of the fault that ruptures and the stress drop. Therefore, the longer the length and the wider the width of the faulted area, the larger the resulting magnitude. The most important parameter controlling the maximum earthquake magnitude on a fault, however, is not the maximum available length, but the available width because the latter varies by a factor of 20. Along converging plate margins,
3915-428: Is purified, it is used throughout and around the stadium. Pipes placed under the playing surface gather heat in the winter to warm the stadium and disperse heat in the summer to cool the stadium. The stadium's design originally planed to have capacity of 100,000 people; however, 9,000 were removed during a simplification of the design. The new total of 91,000 was shaved further when 11,000 temporary seats were removed after
4060-733: Is the Nippon Professional Baseball league of Japan, in which many of the teams are themselves named after their parent corporations. Also, many newer European football stadiums, such as the University of Bolton and Emirates Stadiums in England and Signal Iduna Park and Allianz Arena in Germany have been corporately named. This new trend in corporate naming (or renaming) is distinguishable from names of some older venues, such as Crosley Field , Wrigley Field , and
4205-410: Is the tsunami earthquake , observed where the relatively low felt intensities, caused by the slow propagation speed of some great earthquakes, fail to alert the population of the neighboring coast, as in the 1896 Sanriku earthquake . During an earthquake, high temperatures can develop at the fault plane, increasing pore pressure and consequently vaporization of the groundwater already contained within
4350-509: The 1556 Shaanxi earthquake in China, with over 830,000 fatalities, and the 1960 Valdivia earthquake in Chile, the largest ever recorded at 9.5 magnitude. Earthquakes result in various effects, such as ground shaking and soil liquefaction , leading to significant damage and loss of life. When the epicenter of a large earthquake is located offshore, the seabed may be displaced sufficiently to cause
4495-618: The 1908 Summer Olympics in London is often cited as the first modern seater stadium, at least in the UK. Designed by the engineer J.J. Webster and completed in 10 months by George Wimpey , on the site of the Franco-British Exhibition , this stadium with a seating capacity of 68,000 was opened by King Edward VII on 27 April 1908. Upon completion, the stadium had a running track 24 ft wide (7.3 m) and three laps to
Beijing National Stadium - Misplaced Pages Continue
4640-400: The 1980 eruption of Mount St. Helens . Earthquake swarms can serve as markers for the location of the flowing magma throughout the volcanoes. These swarms can be recorded by seismometers and tiltmeters (a device that measures ground slope) and used as sensors to predict imminent or upcoming eruptions. A tectonic earthquake begins as an area of initial slip on the fault surface that forms
4785-587: The 2004 Indian Ocean earthquake is simultaneously one of the deadliest earthquakes in history. Earthquakes that caused the greatest loss of life, while powerful, were deadly because of their proximity to either heavily populated areas or the ocean, where earthquakes often create tsunamis that can devastate communities thousands of kilometers away. Regions most at risk for great loss of life include those where earthquakes are relatively rare but powerful, and poor regions with lax, unenforced, or nonexistent seismic building codes. Tectonic earthquakes occur anywhere on
4930-543: The 2004 Summer Olympics . The excavation and refurbishment of the stadium was part of the legacy of the Greek national benefactor Evangelos Zappas , and it was the first ancient stadium to be used in modern times. Stadiums in ancient Greece and Rome were built for different purposes, and at first only the Greeks built structures called "stadium"; Romans built structures called " circus ". Greek stadia were for foot races, whereas
5075-794: The Allianz Arena in Munich was called the FIFA World Cup Stadium, Munich during the tournament. Likewise, the same stadium will be known as the "München Arena" during the European Competitions. Similar rules affect the Imtech Arena and Veltins-Arena . This rule applies even if the stadium sponsor is an official FIFA sponsor—the Johannesburg stadium then commercially known as "Coca-Cola Park", bearing
5220-499: The Himalayan Mountains . With the rapid growth of mega-cities such as Mexico City, Tokyo, and Tehran in areas of high seismic risk , some seismologists are warning that a single earthquake may claim the lives of up to three million people. While most earthquakes are caused by the movement of the Earth's tectonic plates , human activity can also produce earthquakes. Activities both above ground and below may change
5365-638: The National Football League or the American Football League . (To a certain extent, this continues in lower football leagues as well, with the venue now known as Charles Schwab Field Omaha being used as the home stadium of the United Football League's Omaha Nighthawks .) Along with today's single use stadiums is the trend for retro-style ballparks closer to downtown areas. Oriole Park at Camden Yards
5510-456: The Opening and Closing ceremonies and athletic events of the 2008 Summer Paralympics from 6 to 17 September 2008. Though designed for track and field events of the Olympics, the stadium continued to host sporting events, such as football, afterwards. A shopping mall and a hotel, with rooms overlooking the field, are planned to help increase use after the Olympics. Li stated, "This will become
5655-640: The Summer Olympics and the FIFA World Cup (of association football), during which cities often pledge to build new stadiums in order to satisfy the International Olympic Committee (IOC) or FIFA . In recent decades, to help take the burden of the massive expense of building and maintaining a stadium, many American and European sports teams have sold the rights to the name of the facility. This trend, which began in
5800-426: The brittle-ductile transition zone and upwards by the ground surface. The mechanics of this process are poorly understood because it is difficult either to recreate such rapid movements in a laboratory or to record seismic waves close to a nucleation zone due to strong ground motion. In most cases, the rupture speed approaches, but does not exceed, the shear wave (S wave) velocity of the surrounding rock. There are
5945-419: The first season of The Amazing Race: China Rush . Later in 2016, the first leg of the third season of The Amazing Race China featured a Roadblock where a team member reenacted a dancing segment from the opening ceremony . The National Stadium was intended to be a Monument of New China, expected to be visited by millions of tourists and showcased through an array of media representations. In spite of
Beijing National Stadium - Misplaced Pages Continue
6090-413: The least principal stress. Strike-slip faulting is intermediate between the other two types described above. This difference in stress regime in the three faulting environments can contribute to differences in stress drop during faulting, which contributes to differences in the radiated energy, regardless of fault dimensions. For every unit increase in magnitude, there is a roughly thirty-fold increase in
6235-654: The 1960s stadiums began to be used as live venues for popular music, giving rise to the term " stadium rock ", particularly for forms of hard rock and progressive rock . The origins of stadium rock are sometimes dated to when the Beatles played Shea Stadium in New York in 1965. Also important was the use of large stadiums for American tours by bands in the later 1960s, such as the Rolling Stones , Grand Funk Railroad and Led Zeppelin . The tendency developed in
6380-604: The 1970s, but accelerated greatly in the 1990s, has led to sponsors' names being affixed to both established stadiums and new ones. In some cases, the corporate name replaces (with varying degrees of success) the name by which the venue has been known for many years. But many of the more recently built stadiums, like the Volkswagen Arena in Wolfsburg , Germany, have never been known by a non-corporate name. The sponsorship phenomenon has since spread worldwide. There remain
6525-532: The 1990s. In several cases, an American football stadium has been constructed adjacent to a baseball park , to allow for the sharing of mutual parking lots and other amenities. With the rise of MLS, the construction of soccer-specific stadiums has also increased since the late 1990s to better fit the needs of that sport. In many cases, earlier baseball stadiums were constructed to fit into a particular land area or city block. This resulted in asymmetrical dimensions for many baseball fields. Yankee Stadium , for example,
6670-415: The 2008 Summer Olympics; decreasing the stadium's capacity to current 80,000. The farthest seat is 460 feet (140 meters) from center field. Temperature and airflow of every surface were optimized to increase ventilation. Beijing National Stadium hosted the opening and closing ceremonies, athletic events , and football final of the 2008 Summer Olympics from 8 to 24 August 2008. The stadium also hosted
6815-553: The 20th century and has been inferred for older anomalous clusters of large earthquakes in the Middle East. It is estimated that around 500,000 earthquakes occur each year, detectable with current instrumentation. About 100,000 of these can be felt. Minor earthquakes occur very frequently around the world in places like California and Alaska in the U.S., as well as in El Salvador, Mexico, Guatemala, Chile, Peru, Indonesia,
6960-433: The 21st century. Seismic waves travel through the Earth's interior and can be recorded by seismometers at great distances. The surface-wave magnitude was developed in the 1950s as a means to measure remote earthquakes and to improve the accuracy for larger events. The moment magnitude scale not only measures the amplitude of the shock but also takes into account the seismic moment (total rupture area, average slip of
7105-399: The Earth's core was located in 1913 by Beno Gutenberg . S waves and later arriving surface waves do most of the damage compared to P waves. P waves squeeze and expand the material in the same direction they are traveling, whereas S waves shake the ground up and down and back and forth. Earthquakes are not only categorized by their magnitude but also by the place where they occur. The world
7250-484: The Earth. Also, the depth of the hypocenter can be computed roughly. P wave speed S waves speed As a consequence, the first waves of a distant earthquake arrive at an observatory via the Earth's mantle. On average, the kilometer distance to the earthquake is the number of seconds between the P- and S wave times 8. Slight deviations are caused by inhomogeneities of subsurface structure. By such analysis of seismograms,
7395-668: The Games consisted of a single event, a sprint along the length of the stadium. Greek and Roman stadiums have been found in numerous ancient cities, perhaps the most famous being the Stadium of Domitian , in Rome. The excavated and refurbished ancient Panathenaic Stadium hosted attempted revivals of the Olympic Games in 1870 and 1875 before hosting the first modern Olympics in 1896 , the 1906 Intercalated Games , and some events of
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#17327982308007540-573: The Philippines, Iran, Pakistan, the Azores in Portugal, Turkey, New Zealand, Greece, Italy, India, Nepal, and Japan. Larger earthquakes occur less frequently, the relationship being exponential ; for example, roughly ten times as many earthquakes larger than magnitude 4 occur than earthquakes larger than magnitude 5. In the (low seismicity) United Kingdom, for example, it has been calculated that
7685-474: The Roman circus was for horse races. Both had similar shapes and bowl-like areas around them for spectators. The Greeks also developed the theatre, with its seating arrangements foreshadowing those of modern stadiums. The Romans copied the theatre, then expanded it to accommodate larger crowds and more elaborate settings. The Romans also developed the double-sized round theatre called amphitheatre , seating crowds in
7830-487: The U.S. The Baker Bowl , a baseball park in Philadelphia that opened in its original form in 1887 but was completely rebuilt in 1895, broke new ground in stadium construction in two major ways. The stadium's second incarnation featured the world's first cantilevered second deck (tier) in a sports venue, and was the first baseball park to use steel and brick for the majority of its construction. Another influential venue
7975-867: The UK include the Stamford Bridge stadium (opened in 1877 for the London Athletic Club ) and Anfield stadium (1884 as a venue for Everton F.C. ). In the U.S., many professional baseball teams built large stadiums mainly out of wood , with the first such venue being the South End Grounds in Boston , opened in 1871 for the team then known as the Boston Beaneaters (now the Atlanta Braves ). Many of these parks caught fire, and those that did not proved inadequate for
8120-453: The US is bleachers , which is mostly used for seating areas with bench seats as opposed to individual seats, and which often are uncovered; the name refers to the bleaching effect direct, unshaded sunlight has on the benches and patrons in those sections. Many stadiums make luxury suites or boxes available to patrons at high prices. These suites can accommodate ten to thirty people, depending on
8265-541: The United Kingdom and baseball in the United States, the first such structures were built. One such early stadium was the Lansdowne Road Stadium , the brainchild of Henry Dunlop , who organised the first All Ireland Athletics Championships. Banned from locating sporting events at Trinity College, Dunlop built the stadium in 1872. "I laid down a cinder running path of a quarter-mile, laid down
8410-463: The average recurrences are: an earthquake of 3.7–4.6 every year, an earthquake of 4.7–5.5 every 10 years, and an earthquake of 5.6 or larger every 100 years. This is an example of the Gutenberg–Richter law . The number of seismic stations has increased from about 350 in 1931 to many thousands today. As a result, many more earthquakes are reported than in the past, but this is because of
8555-482: The book Workers (Gong Ren) by artist Helen Couchman. On 1 January 2008, The Times reported that 10 workers had died throughout construction; despite denial from the Chinese government. However, in a story the following week, Reuters , with the support of the Chinese government, reported that only two workers had died. All 121,000 tons of steel were made in China. On 14 May 2008 the grass field of 7,811 square meters
8700-404: The brittle crust. Thus, earthquakes with magnitudes much larger than 8 are not possible. In addition, there exists a hierarchy of stress levels in the three fault types. Thrust faults are generated by the highest, strike-slip by intermediate, and normal faults by the lowest stress levels. This can easily be understood by considering the direction of the greatest principal stress, the direction of
8845-471: The builder's workmanship and agreed two further contracts: exterior hoardings were constructed at a cost of £150 and 12 turnstiles were installed at a cost of £7 each. The stadium was officially opened on 24 August 1892 by Lord Kinnaird and Frederick Wall of the Football Association. No football was played; instead the 12,000 crowd watched a short track and field event followed by music and
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#17327982308008990-566: The cause of other earthquakes in the past century. A Columbia University paper suggested that the 8.0 magnitude 2008 Sichuan earthquake was induced by loading from the Zipingpu Dam , though the link has not been conclusively proved. The instrumental scales used to describe the size of an earthquake began with the Richter scale in the 1930s. It is a relatively simple measurement of an event's amplitude, and its use has become minimal in
9135-461: The club's owner Carson Yeung . Birmingham City recorded a 1–0 victory in the game. Arsenal and Manchester City played each other in the inaugural 'China Cup', a one-off match in Beijing's played on 27 July 2012. Manchester City won the match with a score of 2–0. On 25 July 2016 Manchester City were scheduled to meet Manchester United as part of the 2016 International Champions Cup . However
9280-489: The completed nest structure as a whole settled approximately 27 cm to attain full stability before the interior design and construction of the stadium could be installed and completed. Ground was broken, at the Olympic Green , for Beijing National Stadium on 24 December 2003. At its height, 17,000 construction workers worked on the stadium. Portraits of 143 migrant workers at the construction site were featured in
9425-458: The construction of new facilities. In Europe and Latin America, where there are multiple association football clubs in any given city, and several leagues in each country, no such monopoly power exists, and stadiums are built primarily with private money. Outside professional sports, governments are also involved through the intense competition for the right to host major sporting events, primarily
9570-429: The construction process. China National Electric Engineering Co Ltd and China National Mechanical Engineering Corporation lifted and welded the steel structure. Due to the stadium's outward appearance, it was nicknamed "The Bird's Nest". The phrase was first used by Herzog & de Meuron, though the pair still believes "there should be many ways of perceiving a building." The use is a compliment Li explained, "In China,
9715-529: The dip angle of the rupture plane is very shallow, typically about 10 degrees. Thus, the width of the plane within the top brittle crust of the Earth can reach 50–100 km (31–62 mi) (such as in Japan, 2011 , or in Alaska, 1964 ), making the most powerful earthquakes possible. The majority of tectonic earthquakes originate in the Ring of Fire at depths not exceeding tens of kilometers. Earthquakes occurring at
9860-678: The displacement along the fault is in the direction of dip and where movement on them involves a vertical component. Many earthquakes are caused by movement on faults that have components of both dip-slip and strike-slip; this is known as oblique slip. The topmost, brittle part of the Earth's crust, and the cool slabs of the tectonic plates that are descending into the hot mantle, are the only parts of our planet that can store elastic energy and release it in fault ruptures. Rocks hotter than about 300 °C (572 °F) flow in response to stress; they do not rupture in earthquakes. The maximum observed lengths of ruptures and mapped faults (which may break in
10005-439: The distance from the earthquake and the underlying rock or soil makeup. The first scale for measuring earthquake magnitudes was developed by Charles Francis Richter in 1935. Subsequent scales ( seismic magnitude scales ) have retained a key feature, where each unit represents a ten-fold difference in the amplitude of the ground shaking and a 32-fold difference in energy. Subsequent scales are also adjusted to have approximately
10150-554: The early 1900s, so it is too early to categorically state that this is the case. Most of the world's earthquakes (90%, and 81% of the largest) take place in the 40,000-kilometre-long (25,000 mi), horseshoe-shaped zone called the circum-Pacific seismic belt, known as the Pacific Ring of Fire , which for the most part bounds the Pacific plate . Massive earthquakes tend to occur along other plate boundaries too, such as along
10295-403: The earth where there is sufficient stored elastic strain energy to drive fracture propagation along a fault plane . The sides of a fault move past each other smoothly and aseismically only if there are no irregularities or asperities along the fault surface that increases the frictional resistance. Most fault surfaces do have such asperities, which leads to a form of stick-slip behavior . Once
10440-426: The earthquakes strike a fault in clusters, each triggered by the shaking or stress redistribution of the previous earthquakes. Similar to aftershocks but on adjacent segments of fault, these storms occur over the course of years, with some of the later earthquakes as damaging as the early ones. Such a pattern was observed in the sequence of about a dozen earthquakes that struck the North Anatolian Fault in Turkey in
10585-504: The energy released. For instance, an earthquake of magnitude 6.0 releases approximately 32 times more energy than a 5.0 magnitude earthquake and a 7.0 magnitude earthquake releases 1,000 times more energy than a 5.0 magnitude earthquake. An 8.6-magnitude earthquake releases the same amount of energy as 10,000 atomic bombs of the size used in World War II . This is so because the energy released in an earthquake, and thus its magnitude,
10730-596: The event will return to the same stadium in 2027. On 29 July 2017, the stadium hosted Monster Jam and the Stadium Super Trucks , marking the first Chinese race for both racing series. Chinese driver Li Ya Tao was among the ten drivers competing in the Stadium Super Truck race. On 4 November 2017, the stadium hosted the League of Legends World Championship 2017 Finals. Jackie Chan was
10875-458: The fact that no single earthquake in the sequence is the main shock, so none has a notably higher magnitude than another. An example of an earthquake swarm is the 2004 activity at Yellowstone National Park . In August 2012, a swarm of earthquakes shook Southern California 's Imperial Valley , showing the most recorded activity in the area since the 1970s. Sometimes a series of earthquakes occur in what has been called an earthquake storm , where
11020-462: The fault has locked, continued relative motion between the plates leads to increasing stress and, therefore, stored strain energy in the volume around the fault surface. This continues until the stress has risen sufficiently to break through the asperity, suddenly allowing sliding over the locked portion of the fault, releasing the stored energy . This energy is released as a combination of radiated elastic strain seismic waves , frictional heating of
11165-411: The fault plane that holds it in place, and fluids can exert a lubricating effect. As thermal overpressurization may provide positive feedback between slip and strength fall at the fault plane, a common opinion is that it may enhance the faulting process instability. After the mainshock, the pressure gradient between the fault plane and the neighboring rock causes a fluid flow that increases pore pressure in
11310-418: The fault surface, and cracking of the rock, thus causing an earthquake. This process of gradual build-up of strain and stress punctuated by occasional sudden earthquake failure is referred to as the elastic-rebound theory . It is estimated that only 10 percent or less of an earthquake's total energy is radiated as seismic energy. Most of the earthquake's energy is used to power the earthquake fracture growth or
11455-541: The fault, and rigidity of the rock). The Japan Meteorological Agency seismic intensity scale , the Medvedev–Sponheuer–Karnik scale , and the Mercalli intensity scale are based on the observed effects and are related to the intensity of shaking. The shaking of the earth is a common phenomenon that has been experienced by humans from the earliest of times. Before the development of strong-motion accelerometers,
11600-408: The first and second Busch Stadiums , in that the parks were named by and for the club's owner, which also happened to be the name of the company owned by those clubowners. (The current Busch Stadium received its name via a modern naming rights agreement.) During the 2006 FIFA World Cup in Germany, some stadiums were temporarily renamed because FIFA prohibits sponsorship of stadiums. For example,
11745-565: The first artist to hold a pop concert at the stadium on 2 April 2009. "King of Chinese Pop" Wang Leehom held the first solo pop concert at the stadium on 14 April 2012 for a sold-out crowd of 90,000 fans. Taiwanese band Mayday performed at the stadium for two nights from 29 to 30 April 2012, as part of their Mayday No Where Tour. They were the first band ever to hold two-day concerts at the stadium. They returned in August 2013 to hold one show as part of their Mayday Now Here Tour. They came back to
11890-417: The focus. Once the rupture has been initiated, it begins to propagate away from the focus, spreading out along the fault surface. Lateral propagation will continue until either the rupture reaches a barrier, such as the end of a fault segment, or a region on the fault where there is insufficient stress to allow continued rupture. For larger earthquakes, the depth extent of rupture will be constrained downwards by
12035-406: The force that "pushes" the rock mass during the faulting. In the case of normal faults, the rock mass is pushed down in a vertical direction, thus the pushing force ( greatest principal stress) equals the weight of the rock mass itself. In the case of thrusting, the rock mass "escapes" in the direction of the least principal stress, namely upward, lifting the rock mass, and thus, the overburden equals
12180-555: The game was cancelled due to heavy rain soaking the pitch, poor pitch conditions due to fungus and the pitch being relaid with turf. On 22 July 2017, Arsenal and Chelsea played against each other in a friendly match. After China became the host of the 2023 AFC Asian Cup on 4 June 2019 which the stadium was originally intended as the Beijing venue, but it was replaced by Workers' Stadium on 4 January 2020. However, on 14 May 2022, AFC announced that China would not be able to host
12325-634: The hit international singing competition The Voice , were held at the stadium. The finals were usually held on either 7 October or on a Sunday of the Golden Week to commemorate the event. In 4th quarter of 2017, this stadium is also open for both local & international pageant events. On 12 January 2009 the venue's owners announced plans for the stadium to anchor a shopping and entertainment complex. These plans, having been developed by operator CITIC Group , were projected to take three to five years to achieve. The stadium also continues to function as
12470-517: The inner bowl, each one weighing 1,000 tons . Despite the random appearance of the Stadium, each half is nearly symmetrical. After a collapse of a roof at the Charles de Gaulle Airport , Beijing reviewed all major projects. It was decided to eliminate the retractable roof, the original inspiration for the "nest" design, as well as 9,000 seats from the design. The removal of the elements helped to bring
12615-410: The intensity of a seismic event was estimated based on the observed effects. Magnitude and intensity are not directly related and calculated using different methods. The magnitude of an earthquake is a single value that describes the size of the earthquake at its source. Intensity is the measure of shaking at different locations around the earthquake. Intensity values vary from place to place, depending on
12760-474: The interconnection of sections of the curved steel frame constructed in Shanghai and transported to Beijing for assembly and welding. The entire structure of interconnected sections was welded together as the primary means of interconnection used to assemble the entire surrounding nest structure. Upon removal of the supporting columns used for the purpose of expediting the assembly of the interconnecting sections,
12905-415: The lack of significant events, the stadium appears to be quite profitable, drawing some 20,000 to 30,000 people a day at the price of a 50 yuan admission. In 2010 it was used as a snow theme park. The venue costs approximately $ 9 million to maintain per year. The stadium was used for the finals of the 2017 League of Legends World Championship . This included performances by Jay Chou . The stadium
13050-476: The largest among them, are megaprojects that can only be afforded by the largest corporations, wealthiest individuals, or government. Sports fans have a deep emotional attachment to their teams. In North America, with its closed-league " franchise " system, there are fewer teams than cities which would like them. This creates tremendous bargaining power for the owners of teams, whereby owners can threaten to relocate teams to other cities unless governments subsidize
13195-487: The lead of Aerosmith and including Mötley Crüe , Quiet Riot , W.A.S.P. and Ratt . Since the 1980s, rock, pop and folk stars, including the Grateful Dead , Madonna , Michael Jackson , Beyoncé , Lady Gaga and Taylor Swift , have undertaken large-scale stadium based concert tours . Earthquake An earthquake – also called a quake , tremor , or temblor – is
13340-466: The length of 600 human feet. As feet are of variable length the exact length of a stadion depends on the exact length adopted for 1 foot at a given place and time. Although in modern terms 1 stadion = 600 ft (180 m), in a given historical context it may actually signify a length up to 15% larger or smaller. The equivalent Roman measure, the stadium , had a similar length – about 185 m (607 ft) – but instead of being defined in feet
13485-476: The lengths along subducting plate margins, and those along normal faults are even shorter. Normal faults occur mainly in areas where the crust is being extended such as a divergent boundary . Earthquakes associated with normal faults are generally less than magnitude 7. Maximum magnitudes along many normal faults are even more limited because many of them are located along spreading centers, as in Iceland, where
13630-402: The main causes of these aftershocks, along with the crust around the ruptured fault plane as it adjusts to the effects of the mainshock. An aftershock is in the same region as the main shock but always of a smaller magnitude, however, they can still be powerful enough to cause even more damage to buildings that were already previously damaged from the mainshock. If an aftershock is larger than
13775-414: The mainshock, the aftershock is redesignated as the mainshock and the original main shock is redesignated as a foreshock . Aftershocks are formed as the crust around the displaced fault plane adjusts to the effects of the mainshock. Earthquake swarms are sequences of earthquakes striking in a specific area within a short period. They are different from earthquakes followed by a series of aftershocks by
13920-418: The mid-1970s as the increased power of amplification and sound systems allowed the use of larger and larger venues. Smoke, fireworks and sophisticated lighting shows became staples of arena rock performances. Key acts from this era included Journey , REO Speedwagon , Boston , Foreigner , Styx , Kiss , Peter Frampton and Queen . In the 1980s arena rock became dominated by glam metal bands, following
14065-456: The mile (536 m); outside there was a 35-foot-wide (11 m), 660-yard (600 m) cycle track. The infield included a swimming and diving pool. The London Highbury Stadium , built in 1913, was the first stadium in the UK to feature a two-tiered seating arrangement when it was redesigned in the Art Deco style in 1936. During these decades, parallel stadium developments were taking place in
14210-411: The most important public space in Beijing." Although ignored by the Chinese media, design consultant Ai Weiwei has voiced his anti-Olympics views and distanced himself from the project, saying, "I've already forgotten about it. I turn down all the demands to have photographs with it," and that it is part of a "pretend smile" of bad taste. China men's and women's team has not played any matches since
14355-425: The name of one of FIFA's major sponsors , was known by its historic name of Ellis Park Stadium during the 2010 FIFA World Cup . Corporate names are also temporarily replaced during the Olympics. Modern stadiums bring several negative environmental issues with their construction. They require thousands of tons of materials to build, they greatly increase traffic in the area around the stadium, as well as maintaining
14500-401: The namesake corporation changes its name, or if it is the naming agreement simply expires. Phoenix's Chase Field , for example, was previously known as Bank One Ballpark, but was renamed to reflect the takeover of the latter corporation. San Francisco's historic Candlestick Park was renamed as 3Com Park for several years, but the name was dropped when the sponsorship agreement expired, and it
14645-475: The old stadiums they replace. In North America, where baseball and American football are the two most popular outdoor spectator sports, a number of football/baseball multi-use stadiums were built, especially during the 1960s, and some of them were successful. Since the requirements for baseball and football are significantly different, the trend has been toward the construction of single-purpose stadiums, beginning with Kansas City in 1972–1973 and accelerating in
14790-609: The opening of the stadium. On its first anniversary, 8 August 2009, the stadium hosted a performance of the opera Turandot , and the 2009 Supercoppa Italiana (Italian Super Cup) final, the traditional curtain raiser to the Italian football league season. In August 2011, the Bird's Nest once again hosted the Supercoppa Italiana , the stadium's second in three years, and also in 2012 . The Beijing Guo’an football club
14935-527: The present Lansdowne Tennis Club ground with my own theodolite, started a Lansdowne archery club, a Lansdowne cricket club, and last, but not least, the Lansdowne Rugby Football Club – colours red, black and yellow." Some 300 cartloads of soil from a trench beneath the railway were used to raise the ground, allowing Dunlop to use his engineering expertise to create a pitch envied around Ireland. Other early stadiums from this period in
15080-414: The project under the reduced construction budget of $ 290 million, from an original $ 500 million. With the removal of the retractable roof, the building was lightened, which helped it stand up to seismic activity ; however, the upper section of the roof was altered to protect fans from weather. Enerpac was granted the contract to perform the stage lifting and lowering of the stadium roof as part of
15225-828: The public. An "all-seater" stadium has seats for all spectators. Other stadiums are designed so that all or some spectators stand to view the event. The term "all-seater" is not common in the U.S., as very few American stadiums have sizeable standing-only sections. Poor stadium design has contributed to disasters, such as the Hillsborough disaster and the Heysel Stadium disaster . Since these, all Premier League , UEFA European Championship and FIFA World Cup qualifying matches require all spectators to be seated. Seating areas may be known as terraces , tiers , or decks . Originally set out for standing room only, they are now usually equipped with seating. Another term used in
15370-530: The rock. In the coseismic phase, such an increase can significantly affect slip evolution and speed, in the post-seismic phase it can control the Aftershock sequence because, after the main event, pore pressure increase slowly propagates into the surrounding fracture network. From the point of view of the Mohr-Coulomb strength theory , an increase in fluid pressure reduces the normal stress acting on
15515-437: The rupture of geological faults but also by other events such as volcanic activity, landslides, mine blasts, fracking and nuclear tests . An earthquake's point of initial rupture is called its hypocenter or focus. The epicenter is the point at ground level directly above the hypocenter. The seismic activity of an area is the frequency, type, and size of earthquakes experienced over a particular time. The seismicity at
15660-522: The same numeric value within the limits of the scale. Although the mass media commonly reports earthquake magnitudes as "Richter magnitude" or "Richter scale", standard practice by most seismological authorities is to express an earthquake's strength on the moment magnitude scale, which is based on the actual energy released by an earthquake, the static seismic moment. Every earthquake produces different types of seismic waves, which travel through rock with different velocities: Propagation velocity of
15805-464: The seismic waves through solid rock ranges from approx. 3 km/s (1.9 mi/s) up to 13 km/s (8.1 mi/s), depending on the density and elasticity of the medium. In the Earth's interior, the shock- or P waves travel much faster than the S waves (approx. relation 1.7:1). The differences in travel time from the epicenter to the observatory are a measure of the distance and can be used to image both sources of earthquakes and structures within
15950-449: The shaking of the Earth 's surface resulting from a sudden release of energy in the lithosphere that creates seismic waves . Earthquakes can range in intensity , from those so weak they cannot be felt, to those violent enough to propel objects and people into the air, damage critical infrastructure, and wreak destruction across entire cities. The seismic activity of an area is the frequency, type, and size of earthquakes experienced over
16095-593: The stadium for the first time on 19 October 2013 as part of the SMTown Live World Tour III . Chinese pop star Jason Zhang held the Future Live concert at the stadium on 11 August 2018. Chinese pop and rock star Hua Chenyu was the first solo artist under 30 to hold a concert, let alone two, on 8 September 2018, to 9 September 2018. Since 2014, the finals for the Chinese singing competition The Voice of China and Sing! China , based on
16240-528: The stadium to hold their three shows of their Just Rock It!!! World Tour in August 2016 and five shows of their Mayday Life Tour in August 2017 and 2018. They returned in August 2019 to hold three shows of their Just Rock It!!! World Tour to commemorate the 20th anniversary of the release of their first album in 1999. Korean pop artists under S.M. Entertainment including Kangta , BoA , TVXQ , Super Junior ( Super Junior-M ), Girls' Generation , SHINee , f(x) , EXO , Zhang Liyin , and Tasty performed at
16385-401: The stadium's history. The vastly differing character of European football stadiums has led to the growing hobby of ground hopping where spectators make a journey to visit the stadium for itself rather than for the event held there. In recent years the trend of building completely new oval stadiums in Europe has led to traditionalists criticising the designs as bland and lacking in the character of
16530-536: The stadium. The increased traffic around modern stadiums has led to create exposure zones says the Health Effect Institute, exposing 30–40% of people living around the stadium to potential health issues. Many stadiums are attempting to counteract these issues by implementing solar panels, and high efficiency lighting, to reduce their own carbon footprint. Although concerts, such as classical music, had been presented in them for decades, beginning in
16675-451: The stadiums with a capacity of at least 10,000 are used for association football . Other popular stadium sports include gridiron football , baseball , cricket , the various codes of rugby , field lacrosse , bandy , and bullfighting . Many large sports venues are also used for concerts. "Stadium" is the Latin form of the Greek word " stadion " ( στάδιον ), a measure of length equalling
16820-491: The start of the "jewel box" era of park construction. The largest stadium crowd ever was 199,854 people watching the final match of the 1950 World Cup at Rio de Janeiro 's Maracanã on 16 July 1950. Domed stadiums are distinguished from conventional stadiums by their enclosing roofs. Many of these are not actually domes in the pure architectural sense, some being better described as vaults , some having truss -supported roofs and others having more exotic designs such as
16965-422: The stresses and strains on the crust, including building reservoirs, extracting resources such as coal or oil, and injecting fluids underground for waste disposal or fracking . Most of these earthquakes have small magnitudes. The 5.7 magnitude 2011 Oklahoma earthquake is thought to have been caused by disposing wastewater from oil production into injection wells , and studies point to the state's oil industry as
17110-461: The study of Chinese ceramics , implemented steel beams in order to hide supports for the retractable roof; giving the stadium the appearance of a bird's nest . Leading Chinese artist Ai Weiwei was the artistic consultant on the project. The retractable roof was later removed from the design after inspiring the stadium's most recognizable aspect. Ground was broken on 24 December 2003 and the stadium officially opened on 28 June 2008. A shopping mall and
17255-490: The surrounding fracture networks; such an increase may trigger new faulting processes by reactivating adjacent faults, giving rise to aftershocks. Analogously, artificial pore pressure increase, by fluid injection in Earth's crust, may induce seismicity . Tides may trigger some seismicity . Most earthquakes form part of a sequence, related to each other in terms of location and time. Most earthquake clusters consist of small tremors that cause little to no damage, but there
17400-413: The team to the "nest scheme". The stadium consists of two independent structures, standing 50 feet apart: a red concrete seating bowl and the outer steel frame around it. In an attempt to hide steel supports for the retractable roof, required in the bidding process, the team developed the "random-looking additional steel" to blend the supports into the rest of the stadium. Twenty-four trussed columns encase
17545-452: The tens of thousands for gladiatorial combats and beast shows. The Greek stadium and theatre and the Roman circus and amphitheatre are all ancestral to the modern stadium. The first stadiums to be built in the modern era were basic facilities, designed for the single purpose of fitting as many spectators in as possible. With tremendous growth in the popularity of organised sport in the late Victorian era , especially association football in
17690-443: The thickness of the brittle layer is only about six kilometres (3.7 mi). Reverse faults occur in areas where the crust is being shortened such as at a convergent boundary . Reverse faults, particularly those along convergent boundaries, are associated with the most powerful earthquakes (called megathrust earthquakes ) including almost all of those of magnitude 8 or more. Megathrust earthquakes are responsible for about 90% of
17835-576: The top design. The "nest scheme" design became official in April 2003. Why does a Chinese bowl or a Chinese window have this kind of pattern? Maybe the Chinese people like things to appear in this irregular way, but underneath there are very clear rules. The Bird's Nest developed in this way. — Li Xinggang, head architect of CADG Beijing National Stadium (BNS) was a joint venture among architects Jacques Herzog and Pierre de Meuron of Herzog & de Meuron , project architect Stefan Marbach and CADG, which
17980-461: The total seismic moment released worldwide. Strike-slip faults are steep structures where the two sides of the fault slip horizontally past each other; transform boundaries are a particular type of strike-slip fault. Strike-slip faults, particularly continental transforms , can produce major earthquakes up to about magnitude 8. Strike-slip faults tend to be oriented near vertically, resulting in an approximate width of 10 km (6.2 mi) within
18125-802: The tournament due to the exceptional circumstances caused by the COVID-19 pandemic . The stadium hosted the 2009 Race of Champions motor racing carnival. In 2014 and 2015, the FIA Formula E Championship motor racing series hosted the Beijing ePrix at the Beijing Olympic Park. On 1 November 2010, the IAAF announced that the 2015 World Championships in Athletics would take place at the Beijing National Stadium. and
18270-505: The universality of such events beyond Earth. An earthquake is the shaking of the surface of Earth resulting from a sudden release of energy in the lithosphere that creates seismic waves . Earthquakes may also be referred to as quakes , tremors , or temblors . The word tremor is also used for non-earthquake seismic rumbling . In its most general sense, an earthquake is any seismic event—whether natural or caused by humans—that generates seismic waves. Earthquakes are caused mostly by
18415-436: The vast improvement in instrumentation, rather than an increase in the number of earthquakes. The United States Geological Survey (USGS) estimates that, since 1900, there have been an average of 18 major earthquakes (magnitude 7.0–7.9) and one great earthquake (magnitude 8.0 or greater) per year, and that this average has been relatively stable. In recent years, the number of major earthquakes per year has decreased, though this
18560-562: The venue. Luxury suites at events such as the Super Bowl can cost hundreds of thousands of dollars. Due to the number of people congregating in stadiums and the frequency of events, many notable accidents have occurred in the past, some causing injury and death. For example, the Hillsborough disaster was a human crush at Hillsborough Stadium in Sheffield , England on 15 April 1989. The resulting 97 deaths and 765 injuries makes this
18705-461: The worst disaster in British sporting history. Much effort has been spent to avoid the recurrence of such events, both in design and legislation. Especially where there is a perceived risk of terrorism or violence attention remains high to prevent human death and keep stadiums as places where families can enjoy a public event together. In Europe and South America, during the twentieth century, it
18850-585: Was Boston 's Harvard Stadium , built in 1903 by Harvard University for its American football team and track and field program. It was the world's first stadium to use concrete-and-steel construction. In 1909, concrete-and-steel construction came to baseball with the opening of Shibe Park in Philadelphia and, a few months later, Forbes Field in Pittsburgh . The latter was the world's first three-tiered sporting venue. The opening of these parks marked
18995-613: Was another two years before the new name of Monster Cable Products ' Monster Park was applied. Local opposition to the corporate naming of that particular stadium led San Francisco's city council to permanently restore the Candlestick Park name once the Monster contract expired. More recently, in Ireland, there has been huge opposition to the renaming of Dublin 's historic Lansdowne Road as the Aviva Stadium . Lansdowne
19140-585: Was built on a triangular city block in The Bronx , New York City. This resulted in a large left field dimension but a small right field dimension. Before more modern football stadiums were built in the United States, many baseball parks, including Fenway Park , the Polo Grounds , Wrigley Field , Comiskey Park , Tiger Stadium , Griffith Stadium , Milwaukee County Stadium , Shibe Park , Forbes Field , Yankee Stadium , and Sportsman's Park were used by
19285-686: Was common for violent bands of supporters to fight inside or close to association football stadiums. In the United Kingdom they are known as hooligans . Structural features that increase safety include separate entry and exit accesses for each spectator area, especially separating accesses for home and visitor supporters, dividing walls, glass parapets, vibration attenuation and sprinkler systems. Security features that have been adopted include armed surveillance, Identity document checks, video surveillance , metal detectors and security searches to enforce rules that forbid spectators to carry dangerous or potentially dangerous items. Modern stadiums, especially
19430-477: Was defined using the Roman standard passus to be a distance of 125 passūs (double-paces). The English use of stadium comes from the tiered infrastructure surrounding a Roman track of such length. Most dictionaries provide for both stadiums and stadia as valid English plurals. The oldest known stadium is the Stadium at Olympia in Greece, where the ancient Olympic Games were held from 776 BC. Initially
19575-461: Was designed for the 2008 Summer Olympics and Paralympics . It was also used during the 2022 Winter Olympics and Paralympics . Located at the Olympic Green , the stadium cost US$ 428 million. The design was awarded to a submission from the Swiss architecture firm Herzog & de Meuron in April 2003 after a bidding process that included 13 final submissions. The design, which originated from
19720-512: Was laid in 24 hours. The field is a modular turf system by GreenTech ITM . Building the Beijing Olympic Field Beijing National Stadium officially opened at a ceremony on 28 June 2008. The eastern and western stands of Beijing National Stadium are higher than northern and southern stands, in order to improve sightlines. A 24-hour-per-day rainwater collector is located near the stadium; after water
19865-436: Was led by chief architect Li Xinggang . During their first meeting in 2003, at Basel , the group decided to do something unlike Herzog and de Meuron had traditionally designed. "China wanted to have something new for this very important stadium," Li stated. In an effort to design a stadium that was "porous" while also being "a collective building, a public vessel", the team studied Chinese ceramics . This line of thought brought
20010-409: Was narrowed to thirteen final designs. Of the final thirteen, Li Xinggang of China Architecture Design and Research Group (CADG), said after he placed the model of the "nest" proposal at the exhibition hall and saw the rival entries he thought to himself, "We will win this." The model was approved as the top design by a professional panel and later exhibited to the public. Once again, it was selected as
20155-529: Was originally designed with a capacity of 100,000 spectators and featured seating in the south stand under cover, while the remaining three stands were left as terraces and uncovered. It was the first stadium to feature continuous seating along the contours of the stadium. These early venues, originally designed to host football matches, were adopted for use by the Olympic Games, the first one being held in 1896 in Athens , Greece. The White City Stadium , built for
20300-529: Was redeveloped as the Aviva, opening in May 2010. On the other hand, Los Angeles' Great Western Forum , one of the earliest examples of corporate renaming, retained its name for many years, even after the namesake bank no longer existed, the corporate name being dropped only after the building later changed ownership. This practice has typically been less common in countries outside the United States. A notable exception
20445-563: Was reportedly the first floodlit stadium. Floodlighting in association football dates as far back as 1878, when there were floodlit experimental matches at Bramall Lane, Sheffield during the dark winter afternoons. With no national grid , lights were powered by batteries and dynamoes , and were unreliable. Since the development of electrical grids, lighting has been an important element in stadium design, allowing games to be played after sundown, and in covered, or partly covered stadiums that allow less natural light, but provide more shelter for
20590-401: Was scheduled to play at the stadium, but later backed out of their agreement, citing the embarrassment of using an 80,000+ seat venue for games that routinely draw only slightly more than 10,000. In July 2010, the stadium hosted a friendly football match between Football League Championship team Birmingham City and Beijing Guoan as a part of Birmingham's pre-season trip to China, homeland of
20735-641: Was the deadliest of the 20th century. The 1960 Chilean earthquake is the largest earthquake that has been measured on a seismograph, reaching 9.5 magnitude on 22 May 1960. Its epicenter was near Cañete, Chile. The energy released was approximately twice that of the next most powerful earthquake, the Good Friday earthquake (27 March 1964), which was centered in Prince William Sound , Alaska. The ten largest recorded earthquakes have all been megathrust earthquakes ; however, of these ten, only
20880-525: Was the first such ballpark for Major League Baseball to be built, using early-20th-century styling with 21st-century amenities. There is a solar-powered stadium in Taiwan that produces as much energy as it needs to function. Stadium designers often study acoustics to increase noise caused by fans' voices, aiming to create a lively atmosphere. Until the advent of floodlights , most games played on large areas had to rely on natural lighting. Bramall Lane
21025-680: Was used to host "The Great Journey", an art performance marking the 100th Anniversary of the Chinese Communist Party on 1 July 2021. The stadium was used for the opening and closing ceremonies of 2022 Winter Olympics and 2022 Winter Paralympics . It is the only stadium to host both the Summer and Winter Olympics and Paralympics opening and closing ceremonies. 39°59′30″N 116°23′26″E / 39.99167°N 116.39056°E / 39.99167; 116.39056 Stadium A stadium ( pl. : stadiums or stadia )
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