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Elis Strömgren
Svante Elis Strömgren (31 May 1870 – 5 April 1947) was a Sweden, Swedish–Denmark, Danish astronomer. Strömgren was born in 1870 in Helsingborg, in the Skåne, Scania province of Sweden. He received his doctorate at Lund University in 1898, becoming docent there the same year. He worked at the University of Kiel from 1901, and assisted in the publication of Astronomische Nachrichten from 1901 to 1904. - Astrophysical Institute Potsdam. He became Professor of Astronomy and director of the Copenhagen Observatory of the University of Copenhagen in 1907. He died in Copenhagen in 1947. The minor planet 1422 Strömgrenia was named in his honour. Strömgren worked in a variety of fields but was particularly interested in theoretical astronomy and celestial mechani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sweden
Sweden, formally the Kingdom of Sweden,The United Nations Group of Experts on Geographical Names states that the country's formal name is the Kingdom of SwedenUNGEGN World Geographical Names, Sweden./ref> is a Nordic country located on the Scandinavian Peninsula in Northern Europe. It borders Norway to the west and north, Finland to the east, and is connected to Denmark in the southwest by a bridgetunnel across the Öresund. At , Sweden is the largest Nordic country, the third-largest country in the European Union, and the fifth-largest country in Europe. The capital and largest city is Stockholm. Sweden has a total population of 10.5 million, and a low population density of , with around 87% of Swedes residing in urban areas in the central and southern half of the country. Sweden has a nature dominated by forests and a large amount of lakes, including some of the largest in Europe. Many long rivers run from the Scandes range through the landscape, primarily ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Celestial Mechanics
Celestial mechanics is the branch of astronomy that deals with the motions of objects in outer space. Historically, celestial mechanics applies principles of physics (classical mechanics) to astronomical objects, such as stars and planets, to produce ephemeris data. History Modern analytic celestial mechanics started with Isaac Newton's Principia of 1687. The name "celestial mechanics" is more recent than that. Newton wrote that the field should be called "rational mechanics." The term "dynamics" came in a little later with Gottfried Leibniz, and over a century after Newton, Pierre-Simon Laplace introduced the term "celestial mechanics." Prior to Kepler there was little connection between exact, quantitative prediction of planetary positions, using geometrical or arithmetical techniques, and contemporary discussions of the physical causes of the planets' motion. Johannes Kepler Johannes Kepler (1571–1630) was the first to closely integrate the predictive geom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
19th-century Swedish Astronomers
The 19th (nineteenth) century began on 1 January 1801 ( MDCCCI), and ended on 31 December 1900 ( MCM). The 19th century was the ninth century of the 2nd millennium. The 19th century was characterized by vast social upheaval. Slavery was abolished in much of Europe and the Americas. The First Industrial Revolution, though it began in the late 18th century, expanding beyond its British homeland for the first time during this century, particularly remaking the economies and societies of the Low Countries, the Rhineland, Northern Italy, and the Northeastern United States. A few decades later, the Second Industrial Revolution led to ever more massive urbanization and much higher levels of productivity, profit, and prosperity, a pattern that continued into the 20th century. The Islamic gunpowder empires fell into decline and European imperialism brought much of South Asia, Southeast Asia, and almost all of Africa under colonial rule. It was also marked by the collapse of the large S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1947 Deaths
It was the first year of the Cold War, which would last until 1991, ending with the dissolution of the Soviet Union. Events January * January–February – Winter of 1946–47 in the United Kingdom: The worst snowfall in the country in the 20th century causes extensive disruption of travel. Given the low ratio of private vehicle ownership at the time, it is mainly remembered in terms of its effects on the railway network. * January 1 - The Canadian Citizenship Act comes into effect. * January 4 – First issue of weekly magazine ''Der Spiegel'' published in Hanover, Germany, edited by Rudolf Augstein. * January 10 – The United Nations adopts a resolution to take control of the free city of Trieste. * January 15 – Elizabeth Short, an aspiring actress nicknamed the "Black Dahlia", is found brutally murdered in a vacant lot in Los Angeles; the mysterious case is never solved. * January 16 – Vincent Auriol is inaugurated as president of France. * January 19 – Ferry ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1870 Births
Year 187 ( CLXXXVII) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Quintius and Aelianus (or, less frequently, year 940 '' Ab urbe condita''). The denomination 187 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Septimius Severus marries Julia Domna (age 17), a Syrian princess, at Lugdunum (modern-day Lyon). She is the youngest daughter of high-priest Julius Bassianus – a descendant of the Royal House of Emesa. Her elder sister is Julia Maesa. * Clodius Albinus defeats the Chatti, a highly organized German tribe that controlled the area that includes the Black Forest. By topic Religion * Olympianus succeeds Pertinax as bishop of Byzantium (until 198). Births * Cao Pi, Chinese emperor of the Cao Wei state (d. 226) * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nordisk Familjebok
''Nordisk familjebok'' (, "Nordic Family Book") is a Swedish encyclopedia that was published in print from between 1876 and 1993, and that is now fully available in digital form via Project Runeberg at Linköping University. Despite their considerable age and relative obsolescence, the public domain editions of the encyclopedia remain important reference works in Finland, especially on Finnish Wikipedia. History First edition ''Nordisk familjebok'' began when Halmstad publisher hired an editor, linguist , in 1874 to publish a six-volume encyclopedia. Linder drew up a plan for the work, designed the editorial team and created a large circle of experts and literary figures, who submitted article proposals and wrote and reviewed them. Under Linder's direction, the articles were then edited to make them as formal, consistent and accurate as possible. Much attention was paid to Nordic subjects, mainly Swedish and Finnish, where sources and models were often lacking, so extensive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bengt Strömgren
Bengt Georg Daniel Strömgren (21 January 1908 – 4 July 1987) was a Danish astronomer and astrophysicist. Life and career Bengt Strömgren was born in Gothenburg. His parents were Hedvig Strömgren (née Lidforss) and Elis Strömgren, who was professor of astronomy at the University of Copenhagen and director of the University Observatory in Copenhagen. Bengt grew up in the professor's mansion surrounded with scientists, assistants, observers and guests. His father paced and promoted Bengt into a life with science, and Bengt's first paper was published already at the age of 14. He graduated from high school in 1925 and enrolled at the Copenhagen university. Only two years later, he graduated in astronomy and atomic physics, and during the following two years, he completed a doctoral degree, which was evaluated with the best marks in December 1929, when he was 21 years old. He gained a great deal of useful experience from his studies in theoretical physics at Niels Bohr's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bengt Lidforss
Bengt Lidforss (15 September 186823 September 1913) was a prominent Swedish socialist, antisemite, and an accomplished natural scientist and writer. Biography Lidforss was born in Lund, Sweden, and died there. He studied botany and biology at Lund University and received his B.A. at nineteen. Later he received a PhD from Lund University. He became a Professor of Botany at Uppsala University in 1909 and at Lund University in 1910. He was one of the first Swedish scientists to write popular science. Lidforss developed a strong stance against religion and the Church of Sweden. He published articles in Malmö-based social democrat newspaper ''Arbetet''. Lidforss was a friend of August Strindberg and was an important name in the early Swedish socialist movement. He was one of the first intellectuals in Sweden to become a socialist; he was also a pessimist on capitalism Capitalism is an economic system based on the private ownership of the means of production and their o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edvard Lidforss
Edvard is a form of Edward and may refer to: * Edvard Askeland (born 1954), Norwegian jazz musician * Edvard Befring (born 1936), Norwegian educationalist * Edvard Beneš (1884–1948), Czech politician * Edvard Christian Danielsen (1888–1964), Norwegian military officer * Edvard Diriks (1855–1930), Norwegian painter * Edvard Drabløs (1883–1976), Norwegian actor and theatre director * Edvard Engelsaas (1872–1902), Norwegian speed skater * Edvard Eriksen (1876–1959), Danish-Icelandic sculptor * Edvard Grieg (1843–1907), Norwegian composer * Edvard Heiberg (1911–2000), Norwegian director and engineer * Edvard Hjelt (1855–1921), Finnish chemist, politician and member of the Senate of Finland * Edvard Hoem (born 1949), Norwegian writer * Edvard Hultgren (1904–1984), Swedish boxer * Edvard Huupponen (1898–1977), Finnish wrestler * Edvard Isto (1865–1905), Finnish artist * Edvard Kardelj (1910–1979), Yugoslav politician * Edvard Johanson (1882–1936), Swedish t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hedvig Lidforss
Hedvig is a given name. Notable people with the name include: People *Hedvig Catharina De la Gardie (1732–1800), Swedish noblewoman of French descent *Hedvig Catharina Lilje (1695–1745), Swedish noblewoman, salonist and informal amateur-politician *Hedvig Charlotta Nordenflycht (1718–1763), Swedish poet, feminist and salon-hostess *Hedvig Eleonora Church, church in central Stockholm, Sweden *Hedvig Eleonora of Holstein-Gottorp (1636–1715), the queen consort of King Charles X of Sweden and queen mother of King Charles XI *Hedvig Eleonora von Fersen (1753–1792), Swedish noblewoman *Hedvig Elisabeth Charlotte of Holstein-Gottorp (1759–1818), the queen consort of Charles XIII of Sweden, famed diarist, memoirist and wit *Hedvig Hricak (born 1946), Croatian American radiologist *Hedvig Karakas (born 1990), Hungarian judoka *Hedvig Lindahl (born 1983), Swedish soccer goalkeeper *Hedvig Malina, ethnic Hungarian student from Slovakia, physically assaulted in a hate crime incident ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jens Olsen's World Clock
Jens Olsen's World Clock or Verdensur is an advanced astronomical clock which is displayed in Copenhagen City Hall. The clock was designed and calculated by Jens Olsen (1872–1945), who was a skilled locksmith, and later learned the trade of clockmaking. He also took part in the beginning of the clock's construction, and died in 1945, 10 years before the clock was completed. The clock consists of 12 movements which together have 15,448 parts. The clock is mechanical and must be wound once a week. Displays include lunar and solar eclipses, positions of the stellar bodies, and a perpetual calendar, in addition to the time. The fastest gear completes a revolution every ten seconds and the slowest every 25,753 years. The calculations for the clock were made up until 1928, after which they were supervised by the astronomer Elis Strömgren. The drawings for the clock were made between 1934 and 1936, and the actual production of the clock took place from 1943 until 1955. The clo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
