Chengdu | |
---|---|
State | Sichuan |
Country | China |
Capital | |
Population | 17700000 |
Postcode | 610015 |
Chengdu (Sichuanese pronunciation: [tsʰən˨˩tu˥], Standard Mandarin pronunciation: [ʈʂʰə̌ŋ.tú] (listen), UK: , US: ), alternatively romanized as Chengtu, is a sub-provincial city which serves as the capital of the Chinese province of Sichuan. It is one of the three most-populous cities in Western China, the other two being Chongqing and Xi'an. As of 2014, the administrative area housed 14,427,500 inhabitants, the largest in Sichuan, with an urban population of 10,152,632. At the time of the 2010 census, Chengdu was the fifth-most populous agglomeration in China, with 10,484,996 inhabitants in the built-up area including Xinjin County and Deyang's Guanghan City. Chengdu is considered a World City with a "Beta +" classification (together with Barcelona and Washington, D.C.) according to the Globalization and World Cities Research Network. In 2020, Chengdu ranked 43rd in the Global Financial Centres Index.Chengdu is located in central Sichuan. The surrounding Chengdu Plain is known as the "Country of Heaven" (Chinese: 天府之国; pinyin: Tiānfǔ zhi Guó) and the "Land of Abundance". Its prehistoric settlers included the Sanxingdui culture. The site of Dujiangyan, an ancient irrigation system, is designated as a World Heritage Site. The Jin River flows through the city.
Founded by the state of Shu prior to its incorporation into China, Chengdu is unique as a major Chinese settlement that has maintained its name mostly unchanged throughout the imperial, republican, and communist eras. It was the capital of Liu Bei's Shu Han during the Three Kingdoms Era, as well as several other local kingdoms during the Middle Ages. During World War II, refugees from eastern China fleeing from the Japanese settled in Chengdu.
Aurora | |
---|---|
State | Missouri |
Country | United States |
Capital | |
Population | 7377 |
Postcode | 65605 |
An aurora (plural: auroras or aurorae), sometimes referred to as polar lights (aurora polaris), northern lights (aurora borealis), or southern lights (aurora australis), is a natural light display in the Earth's sky, predominantly seen in high-latitude regions (around the Arctic and Antarctic).
Auroras are the result of disturbances in the magnetosphere caused by solar wind. These disturbances are sometimes strong enough to alter the trajectories of charged particles in both solar wind and magnetospheric plasma. These particles, mainly electrons and protons, precipitate into the upper atmosphere (thermosphere/exosphere).