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Bernhard Schmidt
Bernhard Woldemar Schmidt (, Naissaar, Nargen, Estonia – 1 December 1935, Hamburg) was an Estonian optician. In 1930 he invented the Schmidt camera, Schmidt telescope, which corrected for the optical errors of spherical aberration, coma, and astigmatism, making possible for the first time the construction of very large, wide-angled reflective cameras of short exposure time for astronomical research. Childhood Schmidt was the son of Carl Constantin and Marie Helene Christine ( Rosen) Schmidt. He was born and grew up on the island of Naissaar, Nargen (Naissaar), off the coast of Reval (Tallinn), Governorate of Estonia, Estonia, then part of the Russian Empire. The inhabitants of this island, mainly Estonian Swedes, generally spoke Swedish language, Swedish or Estonian language, Estonian, but the Schmidt family also spoke German language, German. Bernhard was the oldest of six children, three boys (one of whom died in infancy) and three girls. Naissaar was a small, rural island w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chalmers University Of Technology
Chalmers University of Technology (, commonly referred to as Chalmers) is a private university, private research university located in Gothenburg, Sweden. Chalmers focuses on engineering and science, but more broadly it also conducts research and offers education in shipping, architecture and management. The university has approximately 3100 employees and 10,000 students. Chalmers coordinates the development of a Swedish quantum computer and the Graphene Flagship, a European Union research initiative to develop commercial technologies with graphene. The university is a co-founder of the CDIO Initiative, a member of the UNITECH International program, the IDEA League, the Nordic Five Tech, and the ENHANCE alliances as well as the EURECOM consortium and the CESAER network. History Chalmers was founded in 1829 following a donation by William Chalmers (merchant), William Chalmers, a director of the Swedish East India Company. He donated part of his fortune for the establishment o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walter Baade
Wilhelm Heinrich Walter Baade (March 24, 1893 – June 25, 1960) was a German astronomer who worked in the United States from 1931 to 1959. Early life and education Baade was born the son of a teacher in North Rhine-Westphalia, Germany. He finished school in 1912. He then studied maths, physics and astronomy at the universities of Münster and Göttingen. He received his PhD in 1919. Career Baade worked at Hamburg Observatory at Bergedorf from 1919 to 1931. In 1920 he discovered 944 Hidalgo, the first of a class of minor planets now called Centaurs which cross the orbits of giant planets. From 1931 to 1958, he worked at Mount Wilson Observatory In 1937, the University of Hamburg wanted Baade as successor of Richard Schorr for the Hamburg Observatory, but he refused. At Mount Wilson Observatory, during World War II, he took advantage of wartime blackout conditions (which reduced light pollution), to resolve stars in the center of the Andromeda Galaxy for the first time. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philippines
The Philippines, officially the Republic of the Philippines, is an Archipelagic state, archipelagic country in Southeast Asia. Located in the western Pacific Ocean, it consists of List of islands of the Philippines, 7,641 islands, with a total area of roughly 300,000 square kilometers, which are broadly categorized in Island groups of the Philippines, three main geographical divisions from north to south: Luzon, Visayas, and Mindanao. With a population of over 110 million, it is the world's List of countries and dependencies by population, twelfth-most-populous country. The Philippines is bounded by the South China Sea to the west, the Philippine Sea to the east, and the Celebes Sea to the south. It shares maritime borders with Taiwan to the north, Japan to the northeast, Palau to the east and southeast, Indonesia to the south, Malaysia to the southwest, Vietnam to the west, and China to the northwest. It has Ethnic groups in the Philippines, diverse ethnicities and Culture o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Estonia
The history of Estonia forms a part of the history of Europe. Human settlement in what is now Estonia became possible 13,000–11,000 years ago, after the ice from the last Ice age, glacial era had melted, and signs of the first permanent population in the region date from around 9000 BC. The Ancient Estonia#Early Middle Ages, medieval indigenous population of Estonia was one of the last pagan civilisations in Europe to adopt Christianity following the Northern Crusades in the 13th century. After the crusaders had conquered the area by 1227, Estonia was first ruled by the King of Denmark in the north (until 1345), and then until 1559 by the State of the Teutonic Order, Teutonic Order, and by the ecclesiastical states of the List of states in the Holy Roman Empire, Holy Roman Empire, which from 1418 to 1562 covered the whole of Estonia, forming a part of the Livonian Confederation. After 1559, Estonia became part of the Sweden, Kingdom of Sweden until 1710, when the Tsardom of Rus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bergedorf
Bergedorf () is the largest of the seven boroughs of Hamburg, Germany, named after Bergedorf quarter within this borough. In 2020 the population of the borough was 130,994. History The city of Bergedorf received town privileges in 1275, then a part of the younger Duchy of Saxony (1180–1296), which was partitioned by its four co-ruling dukes in 1296 into the branch duchies of Saxe-Lauenburg and Saxe-Wittenberg. Bergedorf then became part of the former. This was only to last until 1303, when Lauenburg's three co-ruling dukes, Albert III, Eric I, and John II partitioned their branch duchy into three smaller duchies. Eric then held Bergedorf ( Vierlande) and Lauenburg and inherited the share of his childless brother Albert III, Saxe-Ratzeburg, after he was already deceased in 1308 and a retained section from Albert's widow Margaret of Brandenburg-Salzwedel on her death. However, his other brother, John II, then claimed a part, so in 1321 Eric conceded Bergedorf (with Vierlan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hamburg Observatory
Hamburg Observatory () is an astronomical observatory located in the Bergedorf borough of the city of Hamburg in northern Germany. It is owned and operated by the University of Hamburg, Germany since 1968, although it was founded in 1825 by the City of Hamburg and moved to its present location in 1912. It has operated telescopes at Bergedorf, at two previous locations in Hamburg, at other observatories around the world, and it has also supported space missions. The largest near-Earth object was discovered at this Observatory by German astronomer Walter Baade at the Bergedorf Observatory in Hamburg on 23 October 1924. That asteroid, 1036 Ganymed is about 20 miles (35 km) in diameter. The Hamburg 1-meter Reflector Telescope, reflector telescope (first light 1911) was one of the biggest telescopes in Europe at that time, and by some measures the fourth largest in the World. The Observatory also has an old style Great Refractor (a ''Großen Refraktor''), a long telescope with a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Schorr
Richard Reinhard Emil Schorr (20 August 1867, Kassel – 21 September 1951, Badgastein, Salzburg), was a German astronomer, who served as the director of the Hamburger Stemwarte at the end of the 19th century. Early life and education Career From 1889 to 1891, Schorr worked as an assistant editor of Astronomische Nachrichten, at the observatory at Kiel. In 1892 Schorr became observer (observator) at the Hamburger Sternwarte (Hamburg Observatory) Schorr was the director of the Hamburger Sternwarte (Hamburg Observatory). The former director George Rümker had started the movement of the observatory to the outer parts of Hamburg but became seriously ill and died in 1899. After Rümker's death, Schorr became director, and the building of Germany's second largest observatory in Hamburg-Bergedorf became his task. The new observatory opened in 1912. Schorr's main interests had been star positions (astrometry), proper motion of stars and solar eclipse observations. Schorr initiated ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War I
World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting took place mainly in European theatre of World War I, Europe and the Middle Eastern theatre of World War I, Middle East, as well as in parts of African theatre of World War I, Africa and the Asian and Pacific theatre of World War I, Asia-Pacific, and in Europe was characterised by trench warfare; the widespread use of Artillery of World War I, artillery, machine guns, and Chemical weapons in World War I, chemical weapons (gas); and the introductions of Tanks in World War I, tanks and Aviation in World War I, aircraft. World War I was one of the List of wars by death toll, deadliest conflicts in history, resulting in an estimated World War I casualties, 10 million military dead and more than 20 million wounded, plus some 10 million civilian de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potsdam
Potsdam () is the capital and largest city of the Germany, German States of Germany, state of Brandenburg. It is part of the Berlin/Brandenburg Metropolitan Region. Potsdam sits on the Havel, River Havel, a tributary of the Elbe, downstream of Berlin, and lies embedded in a hilly morainic landscape dotted with many lakes, around 20 of which are located within Potsdam's city limits. It lies some southwest of Berlin's city centre. The name of the city and of many of its boroughs are of Slavic languages, Slavic origin. Potsdam was a residence of the Prussian kings and the German Emperor until 1918. Its planning embodied ideas of the Age of Enlightenment: through a careful balance of architecture and landscape, Potsdam was intended as "a picturesque, pastoral dream" which would remind its residents of their relationship with nature and reason. The city, which is over 1,000 years old, is widely known for its palaces, its lakes, and its overall historical and cultural significance. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karl Schwarzschild
Karl Schwarzschild (; 9 October 1873 – 11 May 1916) was a German physicist and astronomer. Schwarzschild provided the first exact solution to the Einstein field equations of general relativity, for the limited case of a single spherical non-rotating mass, which he accomplished in 1915, the same year that Einstein first introduced general relativity. The Schwarzschild solution, which makes use of Schwarzschild coordinates and the Schwarzschild metric, leads to a derivation of the Schwarzschild radius, which is the size of the event horizon of a non-rotating black hole. Schwarzschild accomplished this while serving in the German army during World War I. He died the following year, possibly from the autoimmune disease pemphigus, which he developed while at the Russian front. Asteroid 837 Schwarzschilda is named in his honour, as is the large crater ''Schwarzschild'', on the far side of the Moon. Life Karl Schwarzschild was born on 9 October 1873 in Frankfurt on Main, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
