![logo](/img/xlogo_small.webp.pagespeed.ic.Rif_4bzYCq.webp)
Privacy
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).
Olsztyn | |
---|---|
State | |
Country | |
Capital | |
Population | 174675 |
Olsztyn (UK: OL-shtin, Polish: [ˈɔlʂtɨn] (listen); German: Allenstein [ˈʔalənʃtaɪn] (listen); Old Polish: Holstin; Old Prussian: Alnāsteini or Alnestabs; Lithuanian: Olštynas) is a city on the Łyna River in northeastern Poland. Olsztyn is the capital of the Warmian-Masurian Voivodeship, and is a city with county rights. The population of the city was estimated at 171,979 residents in 2019.Founded as Allenstein in the 14th century, Olsztyn was under the control and influence of the Teutonic Order until 1466, when it was incorporated into the Polish Crown as part of the Second Peace of Thorn. For centuries the city was an important centre of trade, crafts, science and administration in the Warmia region linking Warsaw with Königsberg. Following the First Partition of Poland in 1772 Warmia was annexed by Prussia and ceased to be the property of the clergy. In the 19th century the city changed its status completely, becoming the most prominent economic hub of the southern part of Eastern Prussia. The construction of a railway and early industrialisation greatly contributed to Olsztyn's significance.