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Oppau Explosion
The Oppau explosion occurred on September 21, 1921, when approximately 4,500 tonnes of a mixture of ammonium sulfate and ammonium nitrate fertilizer stored in a tower silo exploded at a BASF plant in Oppau, now part of Ludwigshafen, Germany, killing 500–600 people and injuring about 2,000 more. Background The plant began producing ammonium sulfate in 1911, but during World War I when Germany was unable to obtain the necessary sulfur, it began to produce ammonium nitrate as well. Ammonia could be produced without overseas resources, using the Haber process, and the plant was the first of its kind to do so in the world. Compared to ammonium sulfate, ammonium nitrate is strongly hygroscopic, thus the mixture of ammonium sulfate and nitrate compresses under its own weight, turning it into a plaster-like substance in the silo. The workers needed to use pickaxes to get it out, a problematic situation because they could not enter the silo and risk being buried in collapsing fe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oppau Explosion 1921
Oppau may refer to: * Ludwigshafen-Oppau, a suburb of Ludwigshafen, Germany ** Oppau explosion The Oppau explosion occurred on September 21, 1921, when approximately 4,500 tonnes of a mixture of ammonium sulfate and ammonium nitrate fertilizer stored in a tower silo exploded at a BASF plant in Oppau, now part of Ludwigshafen, Germany, kil ..., which occurred there in 1921 * Opawa, Lower Silesian Voivodeship (German: ''Oppau''), Poland * Zábřeh, Dolní Benešov, Czech Republic; See List of historical German and Czech names for places in the Czech Republic See also * Opava (other) * Opawa (other) {{disambiguation, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Munich
Munich ( ; german: München ; bar, Minga ) is the capital and most populous city of the States of Germany, German state of Bavaria. With a population of 1,558,395 inhabitants as of 31 July 2020, it is the List of cities in Germany by population, third-largest city in Germany, after Berlin and Hamburg, and thus the largest which does not constitute its own state, as well as the List of cities in the European Union by population within city limits, 11th-largest city in the European Union. The Munich Metropolitan Region, city's metropolitan region is home to 6 million people. Straddling the banks of the River Isar (a tributary of the Danube) north of the Northern Limestone Alps, Bavarian Alps, Munich is the seat of the Bavarian Regierungsbezirk, administrative region of Upper Bavaria, while being the population density, most densely populated municipality in Germany (4,500 people per km2). Munich is the second-largest city in the Bavarian dialects, Bavarian dialect area, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ammonium Nitrate Disasters
__FORCETOC__ When heated, ammonium nitrate decomposes non-explosively into gases of oxygen, nitrogen, and water vapor; however, it can be induced to decompose explosively by detonation into nitrous oxide and water vapor. Large stockpiles of the material can be a major fire risk due to their supporting oxidation, and may also detonate, as happened in the Texas City disaster of 1947 which led to major changes in the regulations for storage and handling. There are two major classes of incidents resulting in explosions: * In the first case, the explosion happens by the mechanism of shock to detonation transition. The initiation happens by an explosive charge going off in the mass, by the detonation of a shell thrown into the mass, or by detonation of an explosive mixture in contact with the mass. Examples are Kriewald, Morgan, Oppau, Tessenderlo, and Traskwood. * In the second case, the explosion results from a fire that spreads into the ammonium nitrate (AN) itself (Texas City, Br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hugo Graf Von Und Zu Lerchenfeld Auf Köfering Und Schönberg
Hugo Maximilian Philippus Ludwig Franziskus Graf von und zu Lerchenfeld auf Köfering und Schönberg (21 August 1871 in Köfering – 13 April 1944 in Munich), known as Graf von Lerchenfeld-Köfering and as Lerchenfeld for short, was a Bavarian conservative politician and the Prime Minister of Bavaria from 1921 to 1922. He belonged to the Bavarian People's Party, a conservative, separatist party in Bavaria, formed after the First World War. Biography Hugo Graf von und zu Lerchenfeld was born 1871 in Köfering as the son of Ludwig Graf von und zu Lerchenfeld and Clara Grafin von Bray-Steinburg. He was married to Ethel Wyman, of New York. He originally studied law, graduating in 1893. He was employed as a Bavarian government official from 1897 to 1914, later changing to the Imperial government, working as a civil administrator from 1915 to 1918 in the formerly Russian part of Poland, after this in the German foreign department. After the first world war, he became the federal repre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Friedrich Ebert
Friedrich Ebert (; 4 February 187128 February 1925) was a German politician of the Social Democratic Party of Germany (SPD) and the first President of Germany (1919–1945), president of Germany from 1919 until his death in office in 1925. Ebert was elected leader of the SPD on the death in 1913 of August Bebel. In 1914, shortly after he assumed leadership, the party became deeply divided over Ebert's support of war loans to finance the German war effort in World War I. A moderate social democrat, Ebert was in favour of the ''Burgfriedenspolitik, Burgfrieden'', a political policy that sought to suppress squabbles over domestic issues among political parties during wartime in order to concentrate all forces in society on the successful conclusion of the war effort. He tried to isolate those in the party opposed to the war and advocated a split. Ebert was a pivotal figure in the German Revolution of 1918–19. When Germany became a republic at the end of World War I, he became its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heidelberg
Heidelberg (; Palatine German language, Palatine German: ''Heidlberg'') is a city in the States of Germany, German state of Baden-Württemberg, situated on the river Neckar in south-west Germany. As of the 2016 census, its population was 159,914, of which roughly a quarter consisted of students. Located about south of Frankfurt, Heidelberg is the List of cities in Baden-Württemberg by population, fifth-largest city in Baden-Württemberg. Heidelberg is part of the densely populated Rhine-Neckar, Rhine-Neckar Metropolitan Region. Heidelberg University, founded in 1386, is Germany's oldest and one of Europe's most reputable universities. Heidelberg is a Science, scientific hub in Germany and home to several internationally renowned #Research, research facilities adjacent to its university, including the European Molecular Biology Laboratory and four Max Planck Society, Max Planck Institutes. The city has also been a hub for the arts, especially literature, throughout the centurie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wormser Dom
St Peter's Cathedral (German: ''Wormser Dom'') is a Roman Catholic church and former cathedral in Worms, southern Germany. The cathedral is located on the highest point of the inner city of Worms and is the most important building of the Romanesque style in Worms. It is closely associated with Bishop Burchard and the high point of Worms' history in the 12th and 13th centuries. It was the seat of the Catholic Prince-Bishopric of Worms until its extinction in 1802, during German mediatisation. After the extinction of the bishopric, it was reduced in status to that of a parish church; however, it was bestowed the title of minor basilica in 1925 by Pope Pius XI. Most of the cathedral was finished by 1181, however the west choir and the vaulting were built in the 13th century, the elaborate south portal was added in the 14th century, and the central dome has been rebuilt. Great events associated with the cathedral include the nomination of Leo IX as Pope in 1048, the Concorda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhine
), Surselva, Graubünden, Switzerland , source1_coordinates= , source1_elevation = , source2 = Rein Posteriur/Hinterrhein , source2_location = Paradies Glacier, Graubünden, Switzerland , source2_coordinates= , source2_elevation = , source_confluence = Reichenau , source_confluence_location = Tamins, Graubünden, Switzerland , source_confluence_coordinates= , source_confluence_elevation = , mouth = North Sea , mouth_location = Netherlands , mouth_coordinates = , mouth_elevation = , progression = , river_system = , basin_size = , tributaries_left = , tributaries_right = , custom_label = , custom_data = , extra = The Rhine ; french: Rhin ; nl, Rijn ; wa, Rén ; li, Rien; rm, label= Sursilvan, Rein, rm, label= Sutsilvan and Surmiran, Ragn, rm, label=Rumantsch Grischun, Vallader and Puter, Rain; it, Reno ; gsw, Rhi(n), inclu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mannheim
Mannheim (; Palatine German: or ), officially the University City of Mannheim (german: Universitätsstadt Mannheim), is the second-largest city in the German state of Baden-Württemberg after the state capital of Stuttgart, and Germany's 21st-largest city, with a 2020 population of 309,119 inhabitants. The city is the cultural and economic centre of the Rhine-Neckar Metropolitan Region, Germany's seventh-largest metropolitan region with nearly 2.4 million inhabitants and over 900,000 employees. Mannheim is located at the confluence of the Rhine and the Neckar in the Kurpfalz (Electoral Palatinate) region of northwestern Baden-Württemberg. The city lies in the Upper Rhine Plain, Germany's warmest region. Together with Hamburg, Mannheim is the only city bordering two other federal states. It forms a continuous conurbation of around 480,000 inhabitants with Ludwigshafen am Rhein in the neighbouring state of Rhineland-Palatinate, on the other side of the Rhine. Some northe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Longitudinal Wave
Longitudinal waves are waves in which the vibration of the medium is parallel ("along") to the direction the wave travels and displacement of the medium is in the same (or opposite) direction of the wave propagation. Mechanical longitudinal waves are also called ''compressional'' or compression waves, because they produce compression and rarefaction when traveling through a medium, and pressure waves, because they produce increases and decreases in pressure. A wave along the length of a stretched Slinky toy, where the distance between coils increases and decreases, is a good visualization. Real-world examples include sound waves (vibrations in pressure, a particle of displacement, and particle velocity propagated in an elastic medium) and seismic P-waves (created by earthquakes and explosions). The other main type of wave is the transverse wave, in which the displacements of the medium are at right angles to the direction of propagation. Transverse waves, for instance, describe ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyperinflation In The Weimar Republic
Hyperinflation affected the German Papiermark, the currency of the Weimar Republic, between 1921 and 1923, primarily in 1923. It caused considerable internal political instability in the country, the occupation of the Ruhr by France and Belgium, and misery for the general populace. Background To pay for the large costs of the ongoing First World War, Germany suspended the gold standard (the convertibility of its currency to gold) when the war broke out. Unlike France, which imposed its first income tax to pay for the war, German Emperor Wilhelm II and the Reichstag decided unanimously to fund the war entirely by borrowing. The government believed that it would be able to pay off the debt by winning the war and imposing war reparations on the defeated Allies. This was to be done by annexing resource-rich industrial territory in the west and east and imposing cash payments to Germany, similar to the French indemnity that followed German victory over France in 1870.Evans, p. 103 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The New York Times
''The New York Times'' (''the Times'', ''NYT'', or the Gray Lady) is a daily newspaper based in New York City with a worldwide readership reported in 2020 to comprise a declining 840,000 paid print subscribers, and a growing 6 million paid digital subscribers. It also is a producer of popular podcasts such as '' The Daily''. Founded in 1851 by Henry Jarvis Raymond and George Jones, it was initially published by Raymond, Jones & Company. The ''Times'' has won 132 Pulitzer Prizes, the most of any newspaper, and has long been regarded as a national " newspaper of record". For print it is ranked 18th in the world by circulation and 3rd in the U.S. The paper is owned by the New York Times Company, which is publicly traded. It has been governed by the Sulzberger family since 1896, through a dual-class share structure after its shares became publicly traded. A. G. Sulzberger, the paper's publisher and the company's chairman, is the fifth generation of the family to head the pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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