Friedrich Hopfner
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Friedrich Hopfner
Friedrich Hopfner (28 October 1881 – 5 September 1949) was an Austrian geodesist, geophysicist and planetary scientist. As an officer of the Austro-Hungarian Empire he began his scientific work at the Bureau of Meteorology. In 1921 he became Chief Astronomer at the new Geodetic Survey of Austria (Federal Office for Metrology and Survey or ''Bundesamt für Eich- und Vermessungswesen''). From 1936 to 1942 and from 1945 to 1949 he was a professor at the Vienna University of Technology (TU Wien) and over the 1948-9 term he was the university's rector. Life He was born on 28 October 1881 in Trautenau, northern Bohemia (now Trutnov, Czech Republic). He studied mathematics, physics, geophysics and astronomy at the University of Prague and the University of Munich between 1899 and 1904. In 1905 at the Charles University in Prague he delivered his dissertation on "The average and relative distribution of temperature on the Earth's surface." His first job was as an assistant at the ...
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Trutnov
Trutnov (; german: Trautenau) is a town in the Hradec Králové Region of the Czech Republic. It has about 29,000 inhabitants. The town centre is well preserved and is protected by law as an urban monument zone. Administrative parts Trutnov is made up of town parts of Dolní Předměstí, Dolní Staré Město, Horní Předměstí, Horní Staré Město, Kryblice, Střední Předměstí and Vnitřní Město, and villages of Adamov, Babí, Bohuslavice, Bojiště, Lhota, Libeč, Nový Rokytník, Oblanov, Poříčí, Starý Rokytník, Střítež, Studenec, Volanov and Voletiny. Etymology Both the German name ''Trautenau'' and the Czech name ''Trutnov'' are derived from the Old German ''truten ouwe'', which meant "cute floodplain". Geography Trutnov is located about north of Hradec Králové. A negligible part of the municipal territory borders on Poland. Most of the territory lies in the Giant Mountains Foothills, but it also extends to the Broumov Highlands on the east, and a sma ...
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Astronomer
An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, natural satellite, moons, comets and galaxy, galaxies – in either observational astronomy, observational (by analyzing the data) or theoretical astronomy. Examples of topics or fields astronomers study include planetary science, Sun, solar astronomy, the Star formation, origin or stellar evolution, evolution of stars, or the galaxy formation and evolution, formation of galaxies. A related but distinct subject is physical cosmology, which studies the Universe as a whole. Types Astronomers usually fall under either of two main types: observational astronomy, observational and theoretical astronomy, theoretical. Observational astronomers make direct observations of Astronomical object, celestial objects and analyze the data. In contrast, theoretical astronomers create and investigate C ...
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Isonzo Army
The Austro-Hungarian Fifth Army was an Austro-Hungarian field army that fought during World War I. Actions The Fifth Army was formed in 1914 as part of Austro-Hungarian mobilization following its declaration of war on Serbia and Russia. The Fifth Army was put under the command of Gen. Liborius Ritter von Frank. Between August and December 1914, it fought in the Serbian Campaign and suffered such enormous casualties that it was disbanded on 27 December 1914. It participated in the : * Battle of Cer (August 1914), * Battle of Drina (September - October 1914) * Battle of Kolubara (November - December 1914). The Fifth Army was reestablished in May 1915 on the Italian Front, where it remained active until the end of the War. On 24 May 1917, it was renamed the Isonzo Army. On 23 August 1917, the Isonzo Army was upgraded to Army Group Boroević (Heeresgruppe "Boroević") which was composed of 2 armies: * First Isonzo Army, under command of Wenzel von Wurm. * Second Isonzo Army, un ...
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World War I
World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fighting occurring throughout Europe, the Middle East, Africa, the Pacific, and parts of Asia. An estimated 9 million soldiers were killed in combat, plus another 23 million wounded, while 5 million civilians died as a result of military action, hunger, and disease. Millions more died in genocides within the Ottoman Empire and in the 1918 influenza pandemic, which was exacerbated by the movement of combatants during the war. Prior to 1914, the European great powers were divided between the Triple Entente (comprising France, Russia, and Britain) and the Triple Alliance (containing Germany, Austria-Hungary, and Italy). Tensions in the Balkans came to a head on 28 June 1914, following the assassination of Archduke Franz Ferdin ...
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Trieste
Trieste ( , ; sl, Trst ; german: Triest ) is a city and seaport in northeastern Italy. It is the capital city, and largest city, of the autonomous region of Friuli Venezia Giulia, one of two autonomous regions which are not subdivided into provinces. Trieste is located at the head of the Gulf of Trieste, on a narrow strip of Italian territory lying between the Adriatic Sea and Slovenia; Slovenia lies approximately east and southeast of the city, while Croatia is about to the south of the city. The city has a long coastline and is surrounded by grassland, forest, and karstic areas. The city has a subtropical climate, unusual in relation to its relatively high latitude, due to marine breezes. In 2022, it had a population of about 204,302. Capital of the autonomous region of Friuli Venezia Giulia and previously capital of the Province of Trieste, until its abolition on 1 October 2017. Trieste belonged to the Habsburg monarchy from 1382 until 1918. In the 19th century the mon ...
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Vienna
en, Viennese , iso_code = AT-9 , registration_plate = W , postal_code_type = Postal code , postal_code = , timezone = CET , utc_offset = +1 , timezone_DST = CEST , utc_offset_DST = +2 , blank_name = Vehicle registration , blank_info = W , blank1_name = GDP , blank1_info = € 96.5 billion (2020) , blank2_name = GDP per capita , blank2_info = € 50,400 (2020) , blank_name_sec1 = HDI (2019) , blank_info_sec1 = 0.947 · 1st of 9 , blank3_name = Seats in the Federal Council , blank3_info = , blank_name_sec2 = GeoTLD , blank_info_sec2 = .wien , website = , footnotes = , image_blank_emblem = Wien logo.svg , blank_emblem_size = Vienna ( ; german: Wien ; ba ...
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Innsbruck
Innsbruck (; bar, Innschbruck, label=Bavarian language, Austro-Bavarian ) is the capital of Tyrol (state), Tyrol and the List of cities and towns in Austria, fifth-largest city in Austria. On the Inn (river), River Inn, at its junction with the Wipptal, Wipp Valley, which provides access to the Brenner Pass to the south, it had a population of 132,493 in 2018. In the broad valley between high mountains, the so-called North Chain in the Karwendel Alps (Hafelekarspitze, ) to the north and Patscherkofel () and Serles () to the south, Innsbruck is an internationally renowned winter sports centre; it hosted the 1964 Winter Olympics, 1964 and 1976 Winter Olympics as well as the 1984 Winter Paralympics, 1984 and 1988 Winter Paralympics. It also hosted the first 2012 Winter Youth Olympics, Winter Youth Olympics in 2012. The name means "bridge over the Inn". History Antiquity The earliest traces suggest initial inhabitation in the early Stone Age. Surviving Ancient Rome, pre-Roman pla ...
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Berlin
Berlin ( , ) is the capital and largest city of Germany by both area and population. Its 3.7 million inhabitants make it the European Union's most populous city, according to population within city limits. One of Germany's sixteen constituent states, Berlin is surrounded by the State of Brandenburg and contiguous with Potsdam, Brandenburg's capital. Berlin's urban area, which has a population of around 4.5 million, is the second most populous urban area in Germany after the Ruhr. The Berlin-Brandenburg capital region has around 6.2 million inhabitants and is Germany's third-largest metropolitan region after the Rhine-Ruhr and Rhine-Main regions. Berlin straddles the banks of the Spree, which flows into the Havel (a tributary of the Elbe) in the western borough of Spandau. Among the city's main topographical features are the many lakes in the western and southeastern boroughs formed by the Spree, Havel and Dahme, the largest of which is Lake Müggelsee. Due to its l ...
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University Of Munich
The Ludwig Maximilian University of Munich (simply University of Munich or LMU; german: Ludwig-Maximilians-Universität München) is a public research university in Munich, Germany. It is Germany's List of universities in Germany, sixth-oldest university in continuous operation. Originally University of Ingolstadt, established in Ingolstadt in 1472 by Louis IX, Duke of Bavaria, Duke Ludwig IX of Bavaria-Landshut, the university was moved in 1800 to Landshut by Maximilian I Joseph of Bavaria, King Maximilian I of Bavaria when the city was threatened by the French, before being relocated to its present-day location in Munich in 1826 by Ludwig I of Bavaria, King Ludwig I of Bavaria. In 1802, the university was officially named Ludwig-Maximilians-Universität by King Maximilian I of Bavaria in honor of himself and Ludwig IX. LMU is currently the second-largest university in Germany in terms of student population; in the 2018/19 winter semester, the university had a total of 51,606 m ...
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Physics
Physics is the natural science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge which relates to the order of nature, or, in other words, to the regular succession of events." Physics is one of the most fundamental scientific disciplines, with its main goal being to understand how the universe behaves. "Physics is one of the most fundamental of the sciences. Scientists of all disciplines use the ideas of physics, including chemists who study the structure of molecules, paleontologists who try to reconstruct how dinosaurs walked, and climatologists who study how human activities affect the atmosphere and oceans. Physics is also the foundation of all engineering and technology. No engineer could design a flat-screen TV, an interplanetary spacecraft, or even a better mousetrap without first understanding the basic laws of physic ...
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Mathematics
Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics with the major subdisciplines of number theory, algebra, geometry, and analysis, respectively. There is no general consensus among mathematicians about a common definition for their academic discipline. Most mathematical activity involves the discovery of properties of abstract objects and the use of pure reason to prove them. These objects consist of either abstractions from nature orin modern mathematicsentities that are stipulated to have certain properties, called axioms. A ''proof'' consists of a succession of applications of deductive rules to already established results. These results include previously proved theorems, axioms, andin case of abstraction from naturesome basic properties that are considered true starting points of ...
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Bohemia
Bohemia ( ; cs, Čechy ; ; hsb, Čěska; szl, Czechy) is the westernmost and largest historical region of the Czech Republic. Bohemia can also refer to a wider area consisting of the historical Lands of the Bohemian Crown ruled by the Bohemian kings, including Moravia and Czech Silesia, in which case the smaller region is referred to as Bohemia proper as a means of distinction. Bohemia was a duchy of Great Moravia, later an independent principality, a kingdom in the Holy Roman Empire, and subsequently a part of the Habsburg monarchy and the Austrian Empire. After World War I and the establishment of an independent Czechoslovak state, the whole of Bohemia became a part of Czechoslovakia, defying claims of the German-speaking inhabitants that regions with German-speaking majority should be included in the Republic of German-Austria. Between 1938 and 1945, these border regions were joined to Nazi Germany as the Sudetenland. The remainder of Czech territory became the Second ...
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