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Karl Wilhelm Pohlke
Karl Wilhelm Pohlke (28 January 1810 in Berlin – 27 November 1876 in Berlin) was a German painter who established an important geometric statement, which is fundamental for axonometric projections. The statement is called Pohlke's theorem. Life Karl Wilhelm Pohlke was taught painting by Wilhelm Hensel at the Königlich Preussischen Akademie der Künste in Berlin and participated in his first exhibition there in 1832. After finishing his studies he earned his living for some years painting landscapes and teaching perspective drawing privately. In 1835 Pohlke went to France and improved his abilities at the École des Beaux-Arts with Louis Étienne Watelet and Léon Cogniet. In 1843 he went to Italy. After 10 years he returned in 1845 to Berlin, where he got 1849 at the Königlichen Bauakademie an appointment as lecturer and in 1860 was promoted to Professor for Descriptive Geometry and Perspective. Between 1860 and 1876 he published a textbook on descriptive geometry, co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Wilhelm Pohlke 1
Carl may refer to: *Carl, Georgia, city in USA *Carl, West Virginia, an unincorporated community *Carl (name), includes info about the name, variations of the name, and a list of people with the name *Carl², a TV series * "Carl", an episode of television series ''Aqua Teen Hunger Force'' * An informal nickname for a student or alum of Carleton College CARL may refer to: *Canadian Association of Research Libraries *Colorado Alliance of Research Libraries See also *Carle (other) *Charles *Carle, a surname *Karl (other) *Karle (other) Karle may refer to: Places * Karle (Svitavy District), a municipality and village in the Czech Republic * Karli, India, a town in Maharashtra, India ** Karla Caves, a complex of Buddhist cave shrines * Karle, Belgaum, a settlement in Belgaum ... {{disambig ja:カール zh:卡尔 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Descriptive Geometry
Descriptive geometry is the branch of geometry which allows the representation of three-dimensional objects in two dimensions by using a specific set of procedures. The resulting techniques are important for engineering, architecture, design and in art. The theoretical basis for descriptive geometry is provided by graphical projection, planar geometric projections. The earliest known publication on the technique was "Underweysung der Messung mit dem Zirckel und Richtscheyt" (''Observation of the measurement with the compass and spirit level''), published in Linien, Nuremberg: 1525, by Albrecht Dürer. Italian architect Guarino Guarini was also a pioneer of projective and descriptive geometry, as is clear from his ''Placita Philosophica'' (1665), ''Euclides Adauctus'' (1671) and ''Architettura Civile'' (1686—not published until 1737), anticipating the work of Gaspard Monge (1746–1818), who is usually credited with the invention of descriptive geometry. Gaspard Monge is usu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engineers From Berlin
Engineers, as practitioners of engineering, are professionals who Invention, invent, design, build, maintain and test machines, complex systems, structures, gadgets and materials. They aim to fulfill functional objectives and requirements while considering the limitations imposed by practicality, regulation, safety and cost. "Science is knowledge based on our observed facts and tested truths arranged in an orderly system that can be validated and communicated to other people. Engineering is the creative application of scientific principles used to plan, build, direct, guide, manage, or work on systems to maintain and improve our daily lives." The word ''engineer'' (Latin , the origin of the Ir. in the title of engineer in countries like Belgium, The Netherlands, and Indonesia) is derived from the Latin words ("to contrive, devise") and ("cleverness"). The foundational qualifications of a licensed professional engineer typically include a four-year Bachelor of Engineering, bache ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1876 Deaths
Events January * January 1 ** The Reichsbank opens in Berlin. ** The Bass Brewery Red Triangle becomes the world's first registered trademark symbol. *January 27 – The Northampton Bank robbery occurs in Massachusetts. February * February 2 ** The National League (baseball), National League of Professional Base Ball Clubs is formed at a meeting in Chicago; it replaces the National Association of Professional Base Ball Players. Morgan Bulkeley of the Hartford Dark Blues is selected as the league's first president. ** Third Carlist War (Spain): Battle of Montejurra – The new commander General Fernando Primo de Rivera marches on the remaining Carlist stronghold at Estella-Lizarra, Estella, where he meets a force of about 1,600 men under General Carlos Calderón, at nearby Montejurra. After a courageous and costly defence, Calderón is forced to withdraw. * February 14 – Alexander Graham Bell applies for a U.S. patent for the telephone, as does Elisha Gray. * Februa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1810 Births
Events January–March * January 1 – Major-General Lachlan Macquarie officially becomes Governor of New South Wales. * January 4 – Australian Seal hunting, seal hunter Frederick Hasselborough discovers Campbell Island, New Zealand, Campbell Island, in the Subantarctic. * January 12 – The marriage of Napoleon and Joséphine de Beauharnais, Joséphine is annulled. * February 13 – After seizing Jaén, Spain, Jaén, Córdoba, Spain, Córdoba, Seville and Granada, Napoleonic troops enter Málaga under the command of General Horace Sebastiani. * February 17 – Napoleon, Napoleon Bonaparte decrees that Rome would become the second capital of the First French Empire, French Empire. * February 20 – County of Tyrol, Tyrolean rebel leader Andreas Hofer is executed. * March 11 – Napoleon marries Marie-Louise of Austria by proxy in Vienna. April–June * April 2 – Napoleon Bonaparte marries Marie Louise of Austria, Duchess of Parma, in person, in Paris. * April 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glienicke Palace
Glienicke Palace () is a historic palace located on the peninsula of Berlin-Wannsee in Germany. It was designed by Karl Friedrich Schinkel around 1825 for Prince Carl of Prussia. Since 1990, Glienicke Palace and the park have been part of the UNESCO World Heritage Site "Palaces and Parks of Potsdam and Berlin" because of their unique contribution to Prussian landscape architecture. Location The palace is situated near the Glienicke Bridge, on the Bundesstraße 1 across from the Glienicke Hunting Lodge. Around the palace is Park Glienicke. History The palace was designed by Karl Friedrich Schinkel for Prince Carl of Prussia. The building, originally merely a cottage, was turned into a summer palace in the late Neoclassical style. Inside the palace were antique ''objets d'art'' which Prince Carl of Prussia brought back from his trips. Particularly striking are two golden lion statues in front of the south frontage, which were also designed by Schinkel. The lions are versio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Wilhelm Pohlke
Carl may refer to: *Carl, Georgia, city in USA *Carl, West Virginia, an unincorporated community *Carl (name), includes info about the name, variations of the name, and a list of people with the name *Carl², a TV series * "Carl", an episode of television series ''Aqua Teen Hunger Force'' * An informal nickname for a student or alum of Carleton College CARL may refer to: *Canadian Association of Research Libraries *Colorado Alliance of Research Libraries See also *Carle (other) *Charles *Carle, a surname *Karl (other) *Karle (other) Karle may refer to: Places * Karle (Svitavy District), a municipality and village in the Czech Republic * Karli, India, a town in Maharashtra, India ** Karla Caves, a complex of Buddhist cave shrines * Karle, Belgaum, a settlement in Belgaum ... {{disambig ja:カール zh:卡尔 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perspective (geometry)
Two figures in a plane are perspective from a point ''O'', called the center of perspectivity, if the lines joining corresponding points of the figures all meet at ''O''. Dually, the figures are said to be perspective from a line if the points of intersection of corresponding lines all lie on one line. The proper setting for this concept is in projective geometry where there will be no special cases due to parallel lines since all lines meet. Although stated here for figures in a plane, the concept is easily extended to higher dimensions. Terminology The line which goes through the points where the figure's corresponding sides intersect is known as the axis of perspectivity, perspective axis, homology axis, or archaically, perspectrix. The figures are said to be perspective from this axis. The point at which the lines joining the corresponding vertices of the perspective figures intersect is called the center of perspectivity, perspective center, homology center, pole, or arch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bauakademie
The Bauakademie (Building Academy, also known as the ''Schinkelsche Bauakademie'') in Berlin, Germany, was a higher education institution for the art of building to train master builders. Founded on 18 March 1799 by King Frederick William III, the institution originated from the construction department of the Academy of Fine Arts and Mechanical Sciences (from 1704), which emphasized the aesthetic elements of the art of building while ignoring the technical. Thus, the governmental Upper Building Department ("UBD") decided to establish an entirely new building educational institution named "Bauakademie". In 1801, the institution was incorporated into the UBD. An iconic building in the history of engineering and architecture for its red brick facade, the Bauakademie was designed by German architect Karl Friedrich Schinkel between 1832 and 1836. Its red brick façade was considered an early basis for modernist architectural styles. In 1945, the building was destroyed during W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berlin
Berlin ( ; ) is the Capital of Germany, capital and largest city of Germany, by both area and List of cities in Germany by population, population. With 3.7 million inhabitants, it has the List of cities in the European Union by population within city limits, highest population within its city limits of any city in the European Union. The city is also one of the states of Germany, being the List of German states by area, third smallest state in the country by area. Berlin is surrounded by the state of Brandenburg, and Brandenburg's capital Potsdam is nearby. The urban area of Berlin has a population of over 4.6 million and is therefore the most populous urban area in Germany. The Berlin/Brandenburg Metropolitan Region, Berlin-Brandenburg capital region has around 6.2 million inhabitants and is Germany's second-largest metropolitan region after the Rhine-Ruhr region, as well as the List of EU metropolitan areas by GDP, fifth-biggest metropolitan region by GDP in the European Union. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Léon Cogniet
Léon Cogniet (29 August 1794 – 20 November 1880) was a French history and portrait painter. He is probably best remembered as a teacher, with more than one hundred notable students. Biography He was born in Paris. His father was a painter and wallpaper designer. In 1812, he enrolled at the École des Beaux-arts, where he studied with Pierre-Narcisse Guérin. He also worked in the studios of Jean-Victor Bertin. After failing an attempt to win the Prix de Rome in 1816, he won the following year with his depiction of ''Helen Rescued by Castor and Pollux''Grunchec, P. (1985). ''The Grand Prix de Rome: Paintings from the École des Beaux-Arts, 1797-1863''. Washington, DC: International Exhibitions Foundation. p. 66. . and received a stipend to study at the French Academy in Rome until 1822. Before leaving, he had his first exhibition at the Salon. In 1827, he created a series of murals on the life of Saint Stephen for the church of Saint-Nicholas-des-Champs. From 1833 to 183 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louis Étienne Watelet
Louis Étienne Watelet (25 August 1780, Paris - 21 June 1866, Paris) was a French landscape painter and art teacher. Biographie His father was a "Marchand-mercier" (entrepreneur). He is generally credited with being an autodidact. The painter, Charles Gabet (1793-1861), says that he had "no other masters but nature and the love of his art". Nevertheless, he is known to have frequented the studios of the painter Pierre-Henri de Valenciennes and the engraver, . His first exhibition at the Salon came in 1799 and he participated regularly for the remainder of his life, receiving a second-class medal in 1810 and a first-class medal in 1819. He was named a Chevalier in the Legion of Honor in 1825. He was a prolific painter who travelled widely to work en plein aire; visiting the south of France, Savoy, Italy (which had a significant effect on his work), Belgium and the Tyrol. He strove to give his landscapes a historical feeling, in the Romantic style. His works were generally po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
