Aurora vs Toruń

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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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Toruń (UK: , US: , Polish: [ˈtɔruj̃] (listen); German: Thorn) is a historical city on the Vistula River in north-central Poland, and a UNESCO World Heritage Site. Its population was 201,447 as of December 2019. Previously, it was the capital of the Toruń Voivodeship (1975–1998) and the Pomeranian Voivodeship (1921–1945). Since 1999, Toruń has been a seat of the self-government of the Kuyavian-Pomeranian Voivodeship and, as such, is one of its two capitals, together with Bydgoszcz. The cities and neighboring counties form the Bydgoszcz–Toruń twin city metropolitan area. Toruń is one of the oldest cities in Poland, with the first settlement dated back to the 8th century and later having been expanded in 1233 by the Teutonic Knights. Over centuries, it was the home for people of diverse backgrounds and religions. From 1264 until 1411 Toruń was part of the Hanseatic League and by the 17th century it was one of the elite trading points, which greatly affected the city's architecture ranging from Brick Gothic to Mannerism and Baroque.

In the early-modern age, Toruń was a royal city of Poland and it was one of the four largest cities in the country at the time. After the partitions of Poland it was part of Prussia and later the German Empire. After Poland regained independence in 1918, Toruń was reincorporated into Polish territory, and during World War II was spared from bombing and destruction. This allowed the Old Town to be fully preserved with its iconic central marketplace.Believed to be one of the most beautiful cities in Europe, Toruń is renowned for the Museum of Gingerbread, whose baking tradition dates back nearly a millennium, and its large Cathedral. Toruń is noted for its very high standard of living and quality of life. In 1997 the medieval part of the city was designated a UNESCO World Heritage Site. In 2007 the Old Town in Toruń was added to the list of Seven Wonders of Poland. Toruń is the birthplace of astronomer Nicolaus Copernicus.

Source: Wikipedia