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Joseph Johann Littrow
Joseph Johann von Littrow (13 March 1781, Horšovský Týn (german: Bischofteinitz) – 30 November 1840, Vienna) was an Austrian astronomer. In 1837, he was ennobled with the title Joseph Johann Edler von Littrow. He was the father of Karl L. Littrow, Karl Ludwig Edler von Littrow and the mentor of the mathematician Nikolai Brashman. His work took him to Russia for a time, which is where his son who succeeded him was born. He became director of the Vienna Observatory in 1819. He served in this position until his death in 1840. He created the only conformal retroazimuthal map projection, which is known as the Littrow projection. Littrow authored the widely read ''Wunder des Himmels'' ("Miracles of the Sky"), which was reprinted eight times by 1897. Von Littrow is often associated with a proposal to dig a large circular canal in the Sahara desert and fill it with burning kerosene, thus communicating the fact of human intelligence to aliens who may be observing earth. However, Vo ...
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Horšovský Týn
Horšovský Týn (; german: Bischofteinitz) is a town in Domažlice District in the Plzeň Region of the Czech Republic. It has about 4,800 inhabitants. The historic town centre is well preserved and is protected by law as an urban monument reservation. Administrative parts The town is made up of 9 town parts (Město, Plzeňské Předměstí, Malé Předměstí, Velké Předměstí, Nová Ves, Svatá Anna, Podhájí, Valdorf and Lazce) and 12 villages (Borovice, Dolní Metelsko, Hašov, Horní Metelsko, Horšov, Kocourov, Oplotec, Podražnice, Semošice, Svinná, Tasnovice and Věvrov). Etymology The Old Czech word ''týn'' is related to English "town". It was a term for a fortified settlement. The settlement was administered from Horšov (today a part of Horšovský Týn), hence the name which means "Horšov's Týn". Geography Horšovský Týn is located about north of Domažlice and southwest of Plzeň. It lies on the Radbuza River. It is situated on the border between the ...
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Auguste Von Littrow
Auguste von Littrow, ''née'' Bischoff von Altenstern (13 February 1819 in Prague – 23 March 1890 in Vienna) was a German-Austrian author and women's movement leader. She was the daughter of the physician Professor Ignaz von Bischoff-Altenstern. Shortly after her 20th birthday, in 1839, she married astronomer Karl Ludwig von Littrow and settled in Vienna. Rapidly the Littrow household developed into a meeting place of Viennese society. There Hermann Bonitz, Josef Danhauser, Marie von Ebner-Eschenbach, August Eisenmenger, Ernst von Feuchtersleben, Ottilie von Goethe, Franz Grillparzer, Friedrich Hebbel, Rudolf von Jhering, Joseph Lewinsky, Franz Miklosich all met. Asteroid 254 Augusta is named in her honour. She is the great-great grandmother of Roman Catholic Cardinal Christoph Schönborn Christoph Maria Michael Hugo Damian Peter Adalbert Graf von Schönborn, O.P. (; born 22 January 1945) is a Bohemian-born Austrian Dominican friar and theologian, who is a cardinal ...
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19th-century Austrian 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 ...
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Ofen
Buda (; german: Ofen, sh-Latn-Cyrl, separator=" / ", Budim, Будим, Czech and sk, Budín, tr, Budin) was the historic capital of the Kingdom of Hungary and since 1873 has been the western part of the Hungarian capital Budapest, on the west bank of the Danube. Buda comprises a third of Budapest's total territory and is mostly wooded. Landmarks include Buda Castle, the Citadella, and the president of Hungary's residence, Sándor Palace. Etymology According to a legend recorded in chronicles from the Middle Ages, the name "Buda" comes from the name of Bleda ( hu, Buda), brother of Hunnic ruler Attila. Demographics The Buda fortress and palace were built by King Béla IV of Hungary in 1247, and were the nucleus around which the town of Buda was built, which soon gained great importance, and became in 1361 the capital of Hungary. While Pest was mostly Hungarian in the 15th century, Buda had a German majority; however according to the Hungarian Royal Treas ...
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Silesia
Silesia (, also , ) is a historical region of Central Europe that lies mostly within Poland, with small parts in the Czech Republic and Germany. Its area is approximately , and the population is estimated at around 8,000,000. Silesia is split into two main subregions, Lower Silesia in the west and Upper Silesia in the east. Silesia has a diverse culture, including architecture, costumes, cuisine, traditions, and the Silesian language (minority in Upper Silesia). Silesia is along the Oder River, with the Sudeten Mountains extending across the southern border. The region contains many historical landmarks and UNESCO World Heritage Sites. It is also rich in mineral and natural resources, and includes several important industrial areas. The largest city and Lower Silesia's capital is Wrocław; the historic capital of Upper Silesia is Opole. The biggest metropolitan area is the Upper Silesian metropolitan area, the centre of which is Katowice. Parts of the Czech city of Ostrava a ...
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Christoph Schönborn
Christoph Maria Michael Hugo Damian Peter Adalbert Graf von Schönborn, O.P. (; born 22 January 1945) is a Bohemian-born Austrian Dominican friar and theologian, who is a cardinal of the Catholic Church. He serves as the Archbishop of Vienna and was the Chairman of the Austrian Bishops' Conference from 1998 to 2020. He was elevated to the cardinalate in 1998. He is also Grand Chaplain of the Order of the Golden Fleece (Austrian branch), of which he has been a member since 1961. He is a member of the formerly sovereign princely House of Schönborn, several members of which held high offices of the Holy Roman Empire and the Catholic Church as prince-bishops, prince-electors and cardinals. Family and early life Schönborn was born at Skalka Castle, west of Litoměřice in Bohemia (then Czechoslovakia, now part of the Czech Republic), the second son of , and Eleonore Schönborn. He is a member of the princely House of Schönborn whose members have historically borne the tit ...
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Moon
The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of Australia). The Moon is a planetary-mass object with a differentiated rocky body, making it a satellite planet under the geophysical definitions of the term and larger than all known dwarf planets of the Solar System. It lacks any significant atmosphere, hydrosphere, or magnetic field. Its surface gravity is about one-sixth of Earth's at , with Jupiter's moon Io being the only satellite in the Solar System known to have a higher surface gravity and density. The Moon orbits Earth at an average distance of , or about 30 times Earth's diameter. Its gravitational influence is the main driver of Earth's tides and very slowly lengthens Earth's day. The Moon's orbit around Earth has a sidereal period of 27.3 days. During each synod ...
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Littrow (crater)
Littrow is a lunar impact crater that is located in the northeastern part of the Moon's near side, on the east edge of Mare Serenitatis. Its diameter is 29 km. The crater is named after Bohemian astronomer Joseph Johann Littrow. Some distance to the northeast is the prominent crater Römer, while to the south is Vitruvius. The rim of Littrow is heavily worn and eroded, especially along the southern wall. The interior has been flooded with lava in the past, leaving a relatively smooth, featureless surface with no central rise. Rimae Littrow Just to the northwest of Littrow is a system of rilles designated the Rimae Littrow. These are located at selenographic coordinates 22.1° N, 29.9° E, and have a maximum diameter of 115 km. To the south-southwest is the Taurus–Littrow valley that is notable for being the landing site of the Apollo 17 mission. Part of Rimae Littrow (northwest of the crater Clerke) was considered for a landing site of an early Apollo mission, p ...
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Kerosene
Kerosene, paraffin, or lamp oil is a combustible hydrocarbon liquid which is derived from petroleum. It is widely used as a fuel in aviation as well as households. Its name derives from el, κηρός (''keros'') meaning "wax", and was registered as a trademark by Canadian geologist and inventor Abraham Gesner in 1854 before evolving into a generic trademark. It is sometimes spelled kerosine in scientific and industrial usage. The term kerosene is common in much of Argentina, Australia, Canada, India, New Zealand, Nigeria, and the United States, while the term paraffin (or a closely related variant) is used in Chile, eastern Africa, South Africa, Norway, and in the United Kingdom. The term lamp oil, or the equivalent in the local languages, is common in the majority of Asia and the Southeastern United States. Liquid paraffin (called mineral oil in the US) is a more viscous and highly refined product which is used as a laxative. Paraffin wax is a waxy solid extracted from ...
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Andreas Daum
Andreas W. Daum is a German-American historian who specializes in modern German and transatlantic history, as well as the history of knowledge and global exploration. Daum received his Ph.D. summa cum laude in 1995 from the Ludwig Maximilian University of Munich, where he taught for six years as an assistant professor. In 1996, he joined the German Historical Institute Washington DC as a research fellow. From 2001 to 2002, Daum was a John F. Kennedy Memorial Fellow at the Center for European Studies at Harvard University. Since 2003, he has been a professor of European history at the State University of New York (SUNY) at Buffalo. He also served as an associate dean for undergraduate education in the provost's office. In 2010–11, he was a visiting scholar at the BMW Center for German and European Studies at Georgetown University. He is best known as a biographer of Alexander von Humboldt and for his studies on popular science, emigrants from Nazi Germany, and the United States ...
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Map Projection
In cartography, map projection is the term used to describe a broad set of transformations employed to represent the two-dimensional curved surface of a globe on a plane. In a map projection, coordinates, often expressed as latitude and longitude, of locations from the surface of the globe are transformed to coordinates on a plane. Projection is a necessary step in creating a two-dimensional map and is one of the essential elements of cartography. All projections of a sphere on a plane necessarily distort the surface in some way and to some extent. Depending on the purpose of the map, some distortions are acceptable and others are not; therefore, different map projections exist in order to preserve some properties of the sphere-like body at the expense of other properties. The study of map projections is primarily about the characterization of their distortions. There is no limit to the number of possible map projections. More generally, projections are considered in several ...
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Mathematician
A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change. History One of the earliest known mathematicians were Thales of Miletus (c. 624–c.546 BC); he has been hailed as the first true mathematician and the first known individual to whom a mathematical discovery has been attributed. He is credited with the first use of deductive reasoning applied to geometry, by deriving four corollaries to Thales' Theorem. The number of known mathematicians grew when Pythagoras of Samos (c. 582–c. 507 BC) established the Pythagorean School, whose doctrine it was that mathematics ruled the universe and whose motto was "All is number". It was the Pythagoreans who coined the term "mathematics", and with whom the study of mathematics for its own sake begins. The first woman mathematician recorded by history was Hyp ...
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