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Roebling Family
John Augustus Roebling (born Johann August Röbling; June 12, 1806 – July 22, 1869) was a German-born American civil engineer. He designed and built wire rope suspension bridges, in particular the Brooklyn Bridge, which has been designated as a National Historic Landmark and a National Historic Civil Engineering Landmark. Early life and education Röbling was born June 12, 1806, in Mühlhausen to Friederike Dorothea (née Muelleren) and Christoph Polykarpus Röbling. Recognizing his intelligence at a young age, Roebling's mother arranged for him to be tutored in mathematics and science at Erfurt by Ephraim Salomon Unger. He went to Erfurt when he was 15. In 1824 he passed his Surveyor's examination and returned home for a year. In 1824 he enrolled for two semesters at the Bauakademie in Berlin, where he studied architecture and engineering under Martin Friedrich Rabe (1765–1856), bridge construction and foundation construction under Johann Friedrich Dietlein (1782–1837), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mühlhausen
Mühlhausen () is a town in the north-west of Thuringia, Germany, north of Niederdorla, the country's Central Germany (geography)#Geographical centre, geographical centre, north-west of Erfurt, east of Kassel and south-east of Göttingen. Mühlhausen was first mentioned in 967 and became one of the most important cities in central Germany in the late Middle Ages. In the mid-13th century, it became a ''free imperial city, Freie Reichsstadt'', an independent and republican self-ruled member of the Holy Roman Empire, controlling an area of approximately and 19 regional villages. Due to its long-distance trade, Mühlhausen was prosperous and influential with a population of 10,000 around 1500. Because it was spared from later destruction, Mühlhausen today has a great variety of historical buildings with one of the largest medieval city centres remaining in Germany, covering a surface of more than 50 hectares within the inner city wall and approximately 200 hectares overall. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Historic Civil Engineering Landmark
__NOTOC__ The following is a list of Historic Civil Engineering Landmarks as designated by the American Society of Civil Engineers since it began the program in 1964. The designation is granted to projects, structures, and sites in the United States (National Historic Civil Engineering Landmarks) and the rest of the world (International Historic Civil Engineering Landmarks). As of 2024, there are 235 designated Historic Civil Engineering Landmarks in the United States and 61 internationally, totaling 296 landmarks worldwide. Sections or chapters of the American Society of Civil Engineers may also designate state or local landmarks within their areas; those landmarks are not listed here. See also * List of Historic Mechanical Engineering Landmarks References External links American Society of Civil Engineers Historic Landmarks* {{DEFAULTSORT:List Of Historic Civil Engineering Landmarks Historic Civil Engineering Landmarks, * United States history-rela ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brooklyn Bridge By David Shankbone
Brooklyn is a Boroughs of New York City, borough of New York City located at the westernmost end of Long Island in the New York (state), State of New York. Formerly an independent city, the borough is coextensive with Kings County, one of twelve original counties established under English rule in 1683 in what was then the Province of New York. As of the 2020 United States census, the population stood at 2,736,074, making it the most populous of the five boroughs of New York City, and the most populous Administrative divisions of New York (state)#County, county in the state.Table 2: Population, Land Area, and Population Density by County, New York State - 2020 New York State Department of Health. Accessed January 2, 2024. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lenne
The Lenne () is a tributary of the river Ruhr in the Sauerland hills, western Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu .... It has caused flooding in recent years. Having its source on top of the '' Kahler Asten'' near Winterberg in an intermittent spring at an elevation of , the Lenne ends after a course of 129 km flowing into the Ruhr river near the city of Hagen. With an average discharge of 25 m³/s near its mouth, it is the main tributary of the Ruhr. References * Rivers of North Rhine-Westphalia Rivers of Germany {{NorthRhineWestphalia-river-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ruhr (river)
__NOTOC__ The Ruhr () is a river in western Germany (North Rhine-Westphalia), a right tributary (east-side) of the Rhine. Description and history The source of the Ruhr is near the town of Winterberg in the mountainous Sauerland region, at an elevation of approximately . It flows into the lower Rhine at an elevation of only in the municipal area of Duisburg. Its total length is , its average discharge is at Mülheim near its mouth. Thus, its discharge is, for example, comparable to that of the river Ems in Northern Germany or the River Thames in the United Kingdom. The Ruhr first passes the towns of Meschede, Arnsberg, Wickede, Fröndenberg, Holzwickede, Iserlohn, and Schwerte. Then the river marks the southern limit of the Ruhr area, passing Hagen, Dortmund, Herdecke, Wetter, Witten, Bochum, Hattingen, Essen, Mülheim, and Duisburg. The Ruhr area was Germany's primary industrial area during the early- to mid-20th century. Most factories were located there. The oc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eslohe
Eslohe is a municipality in the Hochsauerland district, in North Rhine-Westphalia, Germany. Geography Eslohe is situated approximately 25 km south-west of Meschede. Neighbouring municipalities * Finnentrop * Lennestadt * Meschede * Schmallenberg * Sundern Division of the town After the local government reforms of 1975 Eslohe consists of the following districts: Twin towns * Kisbér (Hungary) Notable people * Georg Milbradt (born 1945), politician (CDU) * Carola Matthiesen (1943-2015), German University Teacher References External links Official site Hochsauerlandkreis {{Hochsauerlandkreis-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arnsberg (region)
Arnsberg () is one of the five Regierungsbezirke of North Rhine-Westphalia, Germany, located in the west-central part of the country. It covers the Sauerland hills as well as the east part of the Ruhr area. The region was founded in 1815 as a subdivision of the Prussian Province of Westphalia. ''Kreise''(counties) # Ennepe-Ruhr # Hochsauerland # Märkischer Kreis # Olpe (district), Olpe # Siegen-Wittgenstein # Soest (district), Soest # Unna (district), Unna ''Kreisfreie Städte''(independent cities) # Bochum # Dortmund # Hagen # Hamm, North Rhine-Westphalia, Hamm # Herne, Germany, Herne Economy The Gross domestic product (GDP) of the region was 124.8 billion € in 2018, accounting for 3.7% of German economic output. GDP per capita adjusted for purchasing power was 32,000 € or 106% of the EU27 average in the same year. The GDP per employee was 95% of the EU average. References External links * NUTS 2 statistical regions of the European Union Westphalia Gov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georg Wilhelm Friedrich Hegel
Georg Wilhelm Friedrich Hegel (27 August 1770 – 14 November 1831) was a 19th-century German idealist. His influence extends across a wide range of topics from metaphysical issues in epistemology and ontology, to political philosophy and the philosophy of art and religion. Born in 1770 in Stuttgart, Holy Roman Empire, during the transitional period between the Enlightenment and the Romantic movement in the Germanic regions of Europe, Hegel lived through and was influenced by the French Revolution and the Napoleonic wars. His fame rests chiefly upon the '' Phenomenology of Spirit'', the '' Science of Logic'', and his teleological account of history. Throughout his career, Hegel strove to correct what he argued were untenable dualisms endemic to modern philosophy (typically by drawing upon the resources of ancient philosophy, particularly Aristotle). Hegel everywhere insists that reason and freedom, despite being natural potentials, are historical achievements. His d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Albert Eytelwein
Johann Albert Eytelwein (31 December 1764 – 18 October 1849) was a German engineer who was among the first to examine mechanical problems dealing with friction, pulleys, and hydraulics. Eytelwein was born in Frankfurt to Christian Philipp and Anna Elisabeth Katharina née Hung. He joined the Prussian army in 1779 and became a bombardier in the 1st Artillery Regiment later serving under General von Tempelhoff who kindled an interest in engineering. He then trained as a surveyor and in 1790 became an inspector of buildings. His building department published the first German journal of civil engineering, ''Sammlung nützlicher Aufsätze und Nachrichten, die Baukunst betreffend'' and in 1799 he was among the founders of the Berlin Bauakademie ("Building Academy"). He received an honorary doctorate from Berlin University in 1811. His major publication was the ''Handbuch der Mechanik fester Körper und Hydraulik'' ditions in 1801, 1823, 1842and the ''Handbuch der Statik fester Körp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydraulics
Hydraulics () is a technology and applied science using engineering, chemistry, and other sciences involving the mechanical properties and use of liquids. At a very basic level, hydraulics is the liquid counterpart of pneumatics, which concerns gases. Fluid mechanics provides the theoretical foundation for hydraulics, which focuses on applied engineering using the properties of fluids. In its fluid power applications, hydraulics is used for the generation, control, and transmission of Power (physics), power by the use of pressure, pressurized liquids. Hydraulic topics range through some parts of science and most of engineering modules, and they cover concepts such as pipe Volumetric flow rate, flow, dam design, fluidics, and fluid control circuitry. The principles of hydraulics are in use naturally in the human body within the vascular system and erectile tissue. ''Free surface hydraulics'' is the branch of hydraulics dealing with free surface flow, such as occurring in rivers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engineering
Engineering is the practice of using natural science, mathematics, and the engineering design process to Problem solving#Engineering, solve problems within technology, increase efficiency and productivity, and improve Systems engineering, systems. Modern engineering comprises many subfields which include designing and improving infrastructure, machinery, vehicles, electronics, Materials engineering, materials, and energy systems. The Academic discipline, discipline of engineering encompasses a broad range of more Academic specialization, specialized fields of engineering, each with a more specific emphasis for applications of applied mathematics, mathematics and applied science, science. See glossary of engineering. The word '':wikt:engineering, engineering'' is derived from the Latin . Definition The American Engineers' Council for Professional Development (the predecessor of the Accreditation Board for Engineering and Technology aka ABET) has defined "engineering" as: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Architecture
Architecture is the art and technique of designing and building, as distinguished from the skills associated with construction. It is both the process and the product of sketching, conceiving, planning, designing, and construction, constructing buildings or other Structure#Load-bearing, structures. The term comes ; ; . Architectural works, in the material form of buildings, are often perceived as cultural symbols and as work of art, works of art. Historical civilizations are often identified with their surviving architectural achievements. The practice, which began in the Prehistory, prehistoric era, has been used as a way of expressing culture by civilizations on all seven continents. For this reason, architecture is considered to be a form of art. Texts on architecture have been written since ancient times. The earliest surviving text on architectural theory, architectural theories is the 1st century AD treatise by the Roman architect Vitruvius, according to whom a good bui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
