Aurora vs Stuttgart

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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).

The resulting ionization and excitation of atmospheric constituents emit light of varying color and complexity. The form of the aurora, occurring within bands around both polar regions, is also dependent on the amount of acceleration imparted to the precipitating particles. Precipitating protons generally produce optical emissions as incident hydrogen atoms after gaining electrons from the atmosphere. Proton auroras are usually observed at lower latitudes.

Source: Wikipedia

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Stuttgart ( SHTUUT-gart, also US: STU(U)T-, STOOT-, SHTOOT-; German: [ˈʃtʊtɡaʁt] (listen); Swabian: Schduagert [ˈʒ̊d̥ua̯ɡ̊ɛʕd̥]; names in other languages) is the capital and largest city of the German state of Baden-Württemberg. Stuttgart is located on the Neckar river in a fertile valley known locally as the "Stuttgart Cauldron". It lies an hour from the Swabian Jura and the Black Forest. Its area has a population of 634,830, making it the sixth largest city in Germany. 2.8 million people live in the city's administrative region and 5.3 million people in its metropolitan area, making it the fourth largest metropolitan area in Germany. The city and metropolitan area are consistently ranked among the top 20 European metropolitan areas by GDP; Mercer listed Stuttgart as 21st on its 2015 list of cities by quality of living, innovation agency 2thinknow ranked the city 24th globally out of 442 cities and the Globalization and World Cities Research Network ranked the city as a Beta-status Global city in their 2014 survey. Stuttgart was one of the host cities for the official tournaments of the 1974 and 2006 FIFA World Cup. Since the 7th millennium BC, the Stuttgart area has been an important agricultural area and has been host to a number of cultures seeking to utilize the rich soil of the Neckar valley. The Roman Empire conquered the area in 83 AD and built a massive castrum near Bad Cannstatt, making it the most important regional centre for several centuries. Stuttgart's roots were truly laid in the 10th century with its founding by Liudolf, Duke of Swabia, as a stud farm for his warhorses. Initially overshadowed by nearby Bad Cannstatt, the town grew steadily and was granted a charter in 1320. The fortunes of Stuttgart turned with those of the House of Württemberg, and they made it the capital of their county, duchy, and kingdom from the 15th century to 1918.

Stuttgart prospered despite setbacks in the Thirty Years' War and devastating air raids by the Allies on the city and its automobile production during World War II. However, by 1952, the city had bounced back and it became the major economic, industrial, tourism and publishing centre it is today.Stuttgart is also a transport junction, and possesses the sixth-largest airport in Germany. Several major companies are headquartered in Stuttgart, including Porsche, Bosch, Mercedes-Benz, Daimler AG, and Dinkelacker.Stuttgart is unusual in the scheme of German cities. It is spread across a variety of hills (some of them covered in vineyards), valleys (especially around the Neckar river and the Stuttgart basin) and parks. This often surprises visitors who associate the city with its reputation as the "cradle of the automobile". The city's tourism slogan is "Stuttgart offers more". Under current plans to improve transport links to the international infrastructure (as part of the Stuttgart 21 project), the city unveiled a new logo and slogan in March 2008 describing itself as "Das neue Herz Europas" ("The new Heart of Europe"). For business, it describes itself as "Where business meets the future". In July 2010, Stuttgart unveiled a new city logo, designed to entice more business people to stay in the city and enjoy breaks in the area.Stuttgart is a city with a high number of immigrants. According to Dorling Kindersley's Eyewitness Travel Guide to Germany, "In the city of Stuttgart, every third inhabitant is a foreigner." 40% of Stuttgart's residents, and 64% of the population below the age of five, are of immigrant background.

Source: Wikipedia