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Karl Imhoff
Karl Imhoff (7 April 1876 in Mannheim – 28 September 1965) was a German civil engineer, author, and a pioneer of wastewater treatment used throughout the world. Action Karl Imhoff was the driving force in the development and invention of the technical apparatuses and methods of sewage treatment (the trickling - and activated sludge process). Imhoff provided not only significant technical innovations, but also design rules derived from experience in the operation of sewage treatment plants. He wrote a book ''Handbook of Urban Drainage'' in 1906, which today is released in new editions. In its 100-year history, the book has been translated 40 times. It has appeared in a total of 20 languages. From 1906 Imhoff was the Emscher Society served as head of the Office wastewater. 1907, where he developed the Emscher fountain with an anaerobic sludge treatment. From 1922 to 1934, Imhoff was managing director of the Ruhrverband, where he planned five Ruhr dams, until he was re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Deutscher Verein Des Gas- Und Wasserfaches
The Deutscher Verein des Gas- und Wasserfaches (DVGW) is the German association for gas and water with headquarters in Bonn. Its official English translation is the German Technical and Scientific Association for Gas and Water. The DVGW was founded in 1859. Its main task is to create the technical regulations for safety and reliability of gas and water supply. Regulation and standards In addition to the preparation of the national DVGW rules it also imports the DIN, EN and ISO standards. The certification activities are done by DVGW CERT GmbH, a wholly owned subsidiary of DVGW. See also *Fuel cell gas appliances up to 70 kW A fuel is any material that can be made to react with other substances so that it releases energy as thermal energy or to be used for work. The concept was originally applied solely to those materials capable of releasing chemical energy but ... References External linksDVGW Homepage* {{DEFAULTSORT:Deutscher Verein Des Gas- Und Wasserfaches Stan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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1965 Deaths
Events January–February * January 14 – The First Minister of Northern Ireland and the Taoiseach of the Republic of Ireland meet for the first time in 43 years. * January 20 ** Lyndon B. Johnson is Second inauguration of Lyndon B. Johnson, sworn in for a full term as President of the United States. ** Indonesian President Sukarno announces the withdrawal of the Indonesian government from the United Nations. * January 29 – Tampere Ice Stadium, Hakametsä, the first ice rink of Finland, is inaugurated in Tampere. * January 30 – The Death and state funeral of Winston Churchill, state funeral of Sir Winston Churchill takes place in London with the largest assembly of dignitaries in the world until the 2005 funeral of Pope John Paul II. * February 4 – Trofim Lysenko is removed from his post as director of the Institute of Genetics at the Russian Academy of Sciences, Academy of Sciences in the Soviet Union. Lysenkoism, Lysenkoist theories are now tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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1876 Births
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 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, 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. * February 19 – Third Carlist War ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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German Civil Engineers
German(s) may refer to: * Germany, the country of the Germans and German things **Germania (Roman era) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizenship in Germany, see also German nationality law **Germanic peoples (Roman era) * German diaspora * German language * German cuisine, traditional foods of Germany People * German (given name) * German (surname) * Germán, a Spanish name Places * German (parish), Isle of Man * German, Albania, or Gërmej * German, Bulgaria * German, Iran * German, North Macedonia * German, New York, U.S. * Agios Germanos, Greece Other uses * German (mythology), a South Slavic mythological being * Germans (band), a Canadian rock band * "German" (song), a 2019 song by No Money Enterprise * ''The German'', a 2008 short film * "The Germans", an episode of ''Fawlty Towers'' * ''The German'', a nickname for Congolese rebel André Kisase Ngandu See also * Germanic (disambi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Wiley (publisher)
John Wiley & Sons, Inc., commonly known as Wiley (), is an American multinational publishing company that focuses on academic publishing and instructional materials. The company was founded in 1807 and produces books, journals, and encyclopedias, in print and electronically, as well as online products and services, training materials, and educational materials for undergraduate, graduate, and continuing education students. History The company was established in 1807 when Charles Wiley opened a print shop in Manhattan. The company was the publisher of 19th century American literary figures like James Fenimore Cooper, Washington Irving, Herman Melville, and Edgar Allan Poe, as well as of legal, religious, and other non-fiction titles. The firm took its current name in 1865. Wiley later shifted its focus to scientific, technical, and engineering subject areas, abandoning its literary interests. Wiley's son John (born in Flatbush, New York, October 4, 1808; died in East ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Munich
Munich is the capital and most populous city of Bavaria, Germany. As of 30 November 2024, its population was 1,604,384, making it the third-largest city in Germany after Berlin and Hamburg. Munich is the largest city in Germany that is not a state of its own. It ranks as the 11th-largest city in the European Union. The metropolitan area has around 3 million inhabitants, and the broader Munich Metropolitan Region is home to about 6.2 million people. It is the List of EU metropolitan regions by GDP#2021 ranking of top four German metropolitan regions, third largest metropolitan region by GDP in the European Union. Munich is located on the river Isar north of the Alps. It is the seat of the Upper Bavaria, Upper Bavarian administrative region. With 4,500 people per km2, Munich is Germany's most densely populated municipality. It is also the second-largest city in the Bavarian language, Bavarian dialect area after Vienna. The first record of Munich dates to 1158. The city ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Straubing
Straubing (; Central Bavarian: ''Strauwing'') is an independent city in Lower Bavaria, southern Germany. It is seat of the Districts of Germany, district of Straubing-Bogen. Annually in August the Gäubodenvolksfest, the second largest fair in Bavaria, is held. The city is located on the Danube forming the centre of the Gäuboden. History The area of Straubing has been continuously settled since the Neolithic. The conquest by the Roman Empire, Romans in 16–14 BC had a dramatic impact on the whole region. Even today many traces of the 400-year Roman occupation can be found: for example, the famous 'Römerschatz' (Roman treasure) which was excavated in 1950 and which is shown in the Gäubodenmuseum. ''Sorviodurum'', as the Romans called it, was an important military support base. After the fall of the Roman Empire Straubing became a centre of settlement of the Bavarii, mostly around St. Peter's Church, Straubing, St. Peter's Church (built in the 9th century) between Allachbach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Schleswig
The Duchy of Schleswig (; ; ; ; ; ) was a duchy in Southern Jutland () covering the area between about 60 km (35 miles) north and 70 km (45 mi) south of the current border between Germany and Denmark. The territory has been divided between the two countries since 1920, with Northern Schleswig in Denmark and Southern Schleswig in Germany. The region is also called Sleswick in English. Unlike Holstein and Lauenburg, Schleswig was never a part of the German Confederation. Schleswig was instead a fief of Denmark, and its inhabitants spoke Danish, German, and North Frisian. Both Danish and German National Liberals wanted Schleswig to be part of a Danish or German national state in the 19th century. A German uprising in March 1848 caused the First Schleswig War which ended in 1852. The Second Schleswig War (1864) ended with the three duchies being governed jointly by Austria and Prussia. In 1866, they became a part of Prussia. Name and naming dispute In the 19t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Langenhagen
Langenhagen (; Eastphalian: ''Langenhogen'') is a town in the Hanover district of Lower Saxony (Niedersachsen), Germany. Overview Langenhagen is a small town of about fifty thousand people in Lower Saxony, Germany. The town is about 72 square kilometers and gets an average o Located about 5.3 miles from Hanover (8.6km) and 154 miles or 248km from the capital of Germany, Berlin. With its 18 hotels, and a number of restaurants and attractions, this town is considered beautiful and a great place to visit by those who go. History From 1866 to 1868, wor ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |