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Otto Röhm
Otto Karl Julius Röhm (; 14 March 1876, Öhringen, Germany – 17 September 1939, Berlin) was one of the founders and a longtime president of the ''Röhm und Haas'' chemical company which became later in the USA the Rohm and Haas (today '' Dow Chemical'') and in Germany the Röhm GmbH (today '' Evonik Degussa''). Life After completion of an apprenticeship as pharmacy assistant he started to study pharmacy at the universities of Munich and Tübingen. As a graduated apothecary he completed his studies in 1901 at Tübingen with a dissertation in chemistry on "Polymerisation products of the acrylic acid". He is named in over 70 patents as inventor or co-inventor. When he died in 1939, his company Röhm GmbH employed 1800 workers and the annual revenues exceeded 22 million Reichsmark. His name is carried by several streets and other public places in Darmstadt, Weiterstadt and Worms. Career After the university he started as a researcher at the Merck company, later he worke ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Öhringen
Öhringen (East Franconian: ''Ähringe'') is the largest town in Hohenlohe (district) in the state of Baden-Württemberg, in southwest Germany, near Heilbronn. Öhringen is on the railline to Schwäbisch Hall and Crailsheim. With a population of 24,374 (2019), the town is diverse. It is a quaint medieval place, and, among its ancient buildings, boasts a fine Evangelical church (german: Stiftskirche) containing carvings in cedar-wood from the 15th century and numerous interesting tombs and monuments; a Renaissance town hall; the building, now used as a library, which formerly belonged to a monastery, erected in 1034; and a palace, the former residence of the princes of Hohenlohe-Öhringen. ''Vicus Aurelii'' to the Romans. Eastwards of it runs the old limes Roman frontier wall, and numerous remains and inscriptions dating from the days of the Roman settlement have been discovered, including traces of three camps. Geography Geographical location Öhringen is located in the wes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reichsmark
The (; sign: ℛℳ; abbreviation: RM) was the currency of Germany from 1924 until 20 June 1948 in West Germany, where it was replaced with the , and until 23 June 1948 in East Germany, where it was replaced by the East German mark. The Reichsmark was subdivided into 100 s (Rpf or ℛ₰). The Mark is an ancient Germanic weight measure, traditionally a half pound, later used for several coins; whereas (''realm'' in English), comes from the official name for the German state from 1871 to 1945, . History The Reichsmark was introduced in 1924 as a permanent replacement for the Papiermark. This was necessary due to the 1920s German inflation which had reached its peak in 1923. The exchange rate between the old Papiermark and the Reichsmark was = 1012  ℳ (one trillion in American English and French, one billion in German and other European languages and British English of the time; see long and short scale). To stabilize the economy and to smooth the transition, the Papierm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhein-Main Region
The Rhine-Main Metropolitan Region, often simply referred to as Frankfurt Rhine-Main, Frankfurt Rhine-Main area or Rhine-Main area (German: ''Rhein-Main-Gebiet'' or ''Frankfurt/Rhein-Main'', abbreviated FRM), is the second-largest metropolitan region in Germany after Rhine-Ruhr, with a total population exceeding 5.8 million. The metropolitan region is located in the central-western part of Germany, and stretches over parts of three German states: Hesse, Rhineland-Palatinate, and Bavaria. The largest cities in the region are Frankfurt am Main, Wiesbaden, Mainz, Darmstadt, Offenbach, Worms, Hanau, and Aschaffenburg. The polycentric region is named after its core city, Frankfurt, and the two rivers Rhine and Main. The Frankfurt Rhine-Main area is officially designated as a European Metropolitan region by the German Federal Ministry of Transport, Building and Urban Affairs and covers an area of roughly . Subdivisions Although Rhine-Main is considered to be a polycentric metropolit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philadelphia
Philadelphia, often called Philly, is the largest city in the Commonwealth of Pennsylvania, the sixth-largest city in the U.S., the second-largest city in both the Northeast megalopolis and Mid-Atlantic regions after New York City. Since 1854, the city has been coextensive with Philadelphia County, the most populous county in Pennsylvania and the urban core of the Delaware Valley, the nation's seventh-largest and one of world's largest metropolitan regions, with 6.245 million residents . The city's population at the 2020 census was 1,603,797, and over 56 million people live within of Philadelphia. Philadelphia was founded in 1682 by William Penn, an English Quaker. The city served as capital of the Pennsylvania Colony during the British colonial era and went on to play a historic and vital role as the central meeting place for the nation's founding fathers whose plans and actions in Philadelphia ultimately inspired the American Revolution and the nation's inde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germany
Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated between the Baltic and North seas to the north, and the Alps to the south; it covers an area of , with a population of almost 84 million within its 16 constituent states. Germany borders Denmark to the north, Poland and the Czech Republic to the east, Austria and Switzerland to the south, and France, Luxembourg, Belgium, and the Netherlands to the west. The nation's capital and most populous city is Berlin and its financial centre is Frankfurt; the largest urban area is the Ruhr. Various Germanic tribes have inhabited the northern parts of modern Germany since classical antiquity. A region named Germania was documented before AD 100. In 962, the Kingdom of Germany formed the bulk of the Holy Roman Empire. During the 16th ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Esslingen Am Neckar
Esslingen am Neckar ( Swabian: ''Esslenga am Neckor'') is a town in the Stuttgart Region of Baden-Württemberg in southern Germany, seat of the District of Esslingen as well as the largest town in the district. Within Baden-Württemberg it is the 11th largest city. It is located on the river Neckar, about southeast of Stuttgart city center. The regions surrounding the city of Esslingen are also mostly developed. Esslingen was a free imperial city for several centuries until it was annexed by Württemberg in 1802. The German Timber-Frame Road passes through the city. History Prehistoric times There is archaeological evidence that what is now the city of Esslingen was settled since the Neolithic period. Traces of human settlement found at the site of the city church date back to around 1000 B.C. Roman times In the 1st century AD the Esslingen region became part of the Roman Empire. During this period a Roman warehouse was located in the area of Oberesslingen. The near ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otto Haas
Otto is a masculine German given name and a surname. It originates as an Old High German short form (variants ''Audo'', ''Odo'', ''Udo'') of Germanic names beginning in ''aud-'', an element meaning "wealth, prosperity". The name is recorded from the 7th century ( Odo, son of Uro, courtier of Sigebert III). It was the name of three 10th-century German kings, the first of whom was Otto I the Great, the first Holy Roman Emperor, founder of the Ottonian dynasty. The Gothic form of the prefix was ''auda-'' (as in e.g. '' Audaþius''), the Anglo-Saxon form was ''ead-'' (as in e.g. ''Eadmund''), and the Old Norse form was '' auð-''. The given name Otis arose from an English surname, which was in turn derived from ''Ode'', a variant form of ''Odo, Otto''. Due to Otto von Bismarck, the given name ''Otto'' was strongly associated with the German Empire in the later 19th century. It was comparatively frequently given in the United States (presumably in German American families) du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tanning (leather)
Tanning is the process of treating Skinning, skins and Hide (skin), hides of animals to produce leather. A tannery is the place where the skins are processed. Tanning hide into leather involves a process which permanently alters the protein structure of skin, making it more durable and less susceptible to decomposition and coloring. Before tanning, the skins are dehaired, degreased, desalted and soaked in water over a period of six hours to two days. Historically this process was considered a noxious or "odoriferous trade" and relegated to the outskirts of town. Historically, tanning used tannin, an acidic chemical compound from which the tanning process draws its name, derived from the bark of certain trees. An alternative method, developed in the 1800s, is chrome tanning, where chromium salts are used instead of natural tannins. History The English word for tanning is from medieval Latin , derivative of (oak bark), from French (tanbark), from old-Cornish (red oak). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fermentation (biochemistry)
Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes. In biochemistry, it is narrowly defined as the extraction of energy from carbohydrates in the absence of oxygen. In food production, it may more broadly refer to any process in which the activity of microorganisms brings about a desirable change to a foodstuff or beverage. The science of fermentation is known as zymology. In microorganisms, fermentation is the primary means of producing adenosine triphosphate (ATP) by the degradation of organic nutrients anaerobically. Humans have used fermentation to produce foodstuffs and beverages since the Neolithic age. For example, fermentation is used for preservation in a process that produces lactic acid found in such sour foods as pickled cucumbers, kombucha, kimchi, and yogurt, as well as for producing alcoholic beverages such as wine and beer. Fermentation also occurs within the gastrointestinal tracts of all an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enzyme
Enzymes () are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products. Almost all metabolic processes in the cell need enzyme catalysis in order to occur at rates fast enough to sustain life. Metabolic pathways depend upon enzymes to catalyze individual steps. The study of enzymes is called ''enzymology'' and the field of pseudoenzyme analysis recognizes that during evolution, some enzymes have lost the ability to carry out biological catalysis, which is often reflected in their amino acid sequences and unusual 'pseudocatalytic' properties. Enzymes are known to catalyze more than 5,000 biochemical reaction types. Other biocatalysts are catalytic RNA molecules, called ribozymes. Enzymes' specificity comes from their unique three-dimensional structures. Like all catalysts, enzymes increase the reaction ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stuttgart
Stuttgart (; Swabian: ; ) is the capital and largest city of the German state of Baden-Württemberg. It is located on the Neckar river in a fertile valley known as the ''Stuttgarter Kessel'' (Stuttgart Cauldron) and lies an hour from the Swabian Jura and the Black Forest. Stuttgart has a population of 635,911, making it the sixth largest city in Germany. 2.8 million people live in the city's administrative region and 5.3 million people in its metropolitan area, making it the fourth largest metropolitan area in Germany. The city and metropolitan area are consistently ranked among the top 20 European metropolitan areas by GDP; Mercer listed Stuttgart as 21st on its 2015 list of cities by quality of living; innovation agency 2thinknow ranked the city 24th globally out of 442 cities in its Innovation Cities Index; and the Globalization and World Cities Research Network ranked the city as a Beta-status global city in their 2020 survey. Stuttgart was one of the host cities ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Merck KGaA
The Merck Group, branded and commonly known as Merck, is a German multinational science and technology company headquartered in Darmstadt, with about 60,000 employees and present in 66 countries. The group includes around 250 companies; the main company is Merck KGaA in Germany. The company is divided into three business lines: Healthcare, Life Sciences and Electronics. Merck was founded in 1668 and is the world's oldest operating chemical and pharmaceutical company, as well as one of the largest pharmaceutical companies in the world. Merck operates in Europe, Africa, Asia, Oceania and the Americas. It has major research and development centres in Darmstadt, Boston, Tokyo and Beijing, as well as other Research and Development units in Taiwan, France, Israel, South Korea, India and in the UK. Merck pioneered the commercial manufacture of morphine in the 19th century and for a time held a virtual monopoly on cocaine. Merck was privately owned until going public on the Frankfurt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
