Georg Frederik Ursin
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Georg Frederik Ursin (baptised ''Georg Friderich Krüger''; 20 June 1797 – 4 December 1849) was a Danish mathematician and astronomer.


Early life

His father, Georg Jacob Krüger, was a first lieutenant in the Royal Danish Navy, however, in 1798, his was stripped of his functions where was taken to
Munkholmen Munkholmen ( no, Monk's islet) is an islet in the municipality of Trondheim in Trøndelag county, Norway. The island sits in the Trondheimsfjord about northwest of the island of Brattøra and the mouth of the river Nidelva in the center of the ...
, an islet north of
Trondheim Trondheim ( , , ; sma, Tråante), historically Kaupangen, Nidaros and Trondhjem (), is a city and municipality in Trøndelag county, Norway. As of 2020, it had a population of 205,332, was the third most populous municipality in Norway, and ...
,
Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and t ...
. In the same year, Ursin was given royal license to carry the maternal family name from his mother, Jacobine Ursin (1772–1819), daughter of rear admiral Ursin, married to a wealthy shipbuilder and shipyard owner Lars Larsen.


Education

In 1814, Ursin passed an exam in
land surveying Surveying or land surveying is the technique, profession, art, and science of determining the terrestrial two-dimensional or three-dimensional positions of points and the distances and angles between them. A land surveying professional is ca ...
before graduating
cum laude Latin honors are a system of Latin phrases used in some colleges and universities to indicate the level of distinction with which an academic degree has been earned. The system is primarily used in the United States. It is also used in some Sou ...
from
Metropolitanskolen Metropolitanskolen ("The Metropolitan School") was a school in Copenhagen, Denmark founded in 1209 by the Bishop , and for centuries one of the most prestigious schools in the country. History The school was founded in 1209 next to the Church of ...
in 1815. Having won a prize assignment involving regular polyhedron, he passed a second exam cum laude.


Death and legacy

Ursin died on December 4, 1849, in Copenhagen. A
DSB Class EA The DSB Class EA was the first electric locomotive in Denmark, introduced in 1984. Twenty-two were built for DSB, about half were acquired by Deutsche Bahn in 2001 when it took over the freight business of DSB. Between 2007 and 2010 some began ...
locomotive no. 3020 is named after Ursin. Danish mathematicians 1797 births 1849 deaths {{math-bio-stub