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Submarine Pen
A submarine pen (''U-Boot-Bunker'' in German) is a type of submarine base that acts as a bunker to protect submarines from air attack. The term is generally applied to submarine bases constructed during World War II, particularly in Germany and its occupied countries, which were also known as U-boat pens (after the phrase "U-boat" to refer to German submarines). Background Among the first forms of protection for submarines were some open-sided shelters with partial wooden foundations that were constructed during World War I. These structures were built at the time when bombs were light enough to be dropped by hand from the cockpit. By the 1940s, the quality of aerial weapons and the means to deliver them had improved markedly. The mid-1930s saw the Naval Construction Office in Berlin give the problem serious thought. Various factions in the navy were convinced protection for the expanding U-boat arm was required. A Royal Air Force (RAF) raid on the capital in 1940, the occupati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Captured German U-boats Outside Their Pen At Trondheim In Norway, 19 May 1945
Captured may refer to: * ''Captured'' (Journey album), 1981 * ''Captured'' (Rockwell album), 1985 * ''Captured'', a 1995 album by The Albion Band * ''Captured'' (Caroline's Spine album), 2007 * ''Captured'' (Christian Bautista album), 2008 * ''Captured'' (mixtape), a 2018 mixtape by Spice * ''Captured!'', a 1933 war film * ''Captured'' (1998 film), a 1998 thriller film * ''Captured'' (video game), a video game released in 1986 for the Commodore 64 * "Captured", a song by Heaven 17 Heaven 17 are an English new wave and synth-pop band that formed in Sheffield in 1980. The band were a trio for most of their career, composed of Martyn Ware (keyboards) and Ian Craig Marsh (keyboards) (both previously of the Human League), an ... See also * Capture (other) {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schutzstaffel
The ''Schutzstaffel'' (SS; also stylized as ''ᛋᛋ'' with Armanen runes; ; "Protection Squadron") was a major paramilitary organization under Adolf Hitler and the Nazi Party in Nazi Germany, and later throughout German-occupied Europe during World War II. It began with a small guard unit known as the ''Saal-Schutz'' ("Hall Security") made up of party volunteers to provide security for party meetings in Munich. In 1925, Heinrich Himmler joined the unit, which had by then been reformed and given its final name. Under his direction (1929–1945) it grew from a small paramilitary formation during the Weimar Republic to one of the most powerful organizations in Nazi Germany. From the time of the Nazi Party's rise to power until the regime's collapse in 1945, the SS was the foremost agency of security, surveillance, and terror within Germany and German-occupied Europe. The two main constituent groups were the '' Allgemeine SS'' (General SS) and ''Waffen-SS'' (Armed SS). The ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schichau Seebeckwerft
Schichau Seebeckwerft (often abbreviated SSW) was a German shipbuilding company, headquartered in Bremerhaven. The name comes from the 1988 merger of Schichau with Seebeckwerft. History The original company Schichau was founded in 1837 by Ferdinand Schichau in Elbing (Elbląg) as F. Schichau. It started by manufacturing steam engines and heavy equipment, later locomotives. In 1854 Schichau built a shipyard in Elbing.Nitka, Andrzej: ''Przedsiębiorstwo stoczniowe F. Schichau. Elbląg-Piława-Gdańsk-Ryga-Królewiec. Zarys dziejów 1837-1945'' in: Morze, Statki i Okręty nr. 6/2007, p. 62-71 A new large shipyard in Danzig was opened in 1890 (later becoming a part of the Polish Gdańsk Shipyard after 1945). In 1929 the shipyard was bought by the German government. In 1930 the company also bought a small yard in Königsberg. After 1945 shipyards in Danzig, Königsberg and Elbing were found on the Soviet and Polish territories, and the company restarted business in Bremerhaven i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AG Weser
Aktien-Gesellschaft „Weser" (abbreviated A.G. „Weser”) was one of the major German shipbuilding companies, located at the Weser River in Bremen. Founded in 1872 it was finally closed in 1983. All together, A.G. „Weser" built about 1,400 ships of different types, including many warships. A.G. „Weser" was the leading company in the Deutsche Schiff- und Maschinenbau AG, a cooperation of eight German shipbuilding companies between 1926 and 1945. History Founding of A.G. „Weser” Aktien-Gesellschaft „Weser” - short A.G. „Weser” - was founded as a successor of the 1843 founded Eisengiesserei & Maschinenbau-Anstalt Waltjen und Leonhard,. This company with its premises was situated on an area called ''Stephanikirchenweide'' at the periphery of the ancient town of Bremen. It was an iron-foundry and machine factory with a wide-ranging production volume of iron-made parts as bridges, cranes, floodgates, steam boiler, steam engines etc. In 1846 Mr. Leonhard left the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bombing Of Bremen In World War II
The Bombing of Bremen in World War II by the British Royal Air Force (RAF) and US Eighth Air Force involved both indiscriminate "area bombing" and, as capacity improved, more targeted raids upon the city's military-industrial facilities. These included, the shipyards of Vulkan, AG Weser and Atlas Werke, the Valentin submarine pens, oil refineries and the aircraft works of Focke-Wolf. Early RAF raids on Bremen beginning in May 1940 had sought out these industrial and military targets but the efforts proved costly and, given limited navigation and target-location capabilities, impractical. From September 1941 the RAF switched to night-time "area bombing". In the spring of 1942 new directives from Bomber Command under Air Marshal Arthur Harris formalised the change of strategy. Purporting to draw lessons from the German Blitz on Britain, Bomber Command concluded that rather than being "collateral damage", the destruction of residential districts and the killing of civilians se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blohm & Voss
Blohm+Voss (B+V), also written historically as Blohm & Voss, Blohm und Voß etc., is a German shipbuilding and engineering company. Founded in Hamburg in 1877 to specialise in steel-hulled ships, its most famous product was the World War II battleship '' Bismarck''. In the 1930s, its owners established the Hamburger Flugzeugbau aircraft manufacturer which, shortly before the outbreak of World War II, adopted the name of its parent company. Following a difficult period after the war, B+V was revived, changing ownership among several owners, as Thyssen Group and Star Capital. In 2016, it became a subsidiary of Lürssen and continues to supply both the military and civilian markets. It serves two areas – new construction of warships as NVL B.V. & Co. KG, and new construction and refitting of megayachts.Meyer, Kristian"Erste Bilanz nach Übernahme Alles neu bei Traditionswerft Blohm+Voss" ''Hamburger Morgenpost'', 27 April 2018. The company has been in operation, building ships and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Type XXI Submarine
Type XXI submarines were a class of German diesel–electric ''Elektroboot'' (German: "electric boat") submarines designed during the Second World War. One hundred and eighteen were completed, with four being combat-ready. During the war only two were put into active service and went on patrols, but these were not used in combat. They were the first submarines designed to operate primarily submerged, rather than spending most of their time as surface ships that could submerge for brief periods as a means of escaping detection. They incorporated many batteries to increase the time they could spend submerged, to as much as several days, and they only needed to surface to periscope depth for recharging via a snorkel. The design included many general improvements as well: much greater underwater speed by an improved hull design, greatly improved diving times, power-assisted torpedo reloading and greatly improved crew accommodations. However, the design was also flawed in many ways, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Le Havre
Le Havre (, ; nrf, Lé Hâvre ) is a port city in the Seine-Maritime department in the Normandy region of northern France. It is situated on the right bank of the estuary of the river Seine on the Channel southwest of the Pays de Caux, very close to the Prime Meridian. Le Havre is the most populous commune of Upper Normandy, although the total population of the greater Le Havre conurbation is smaller than that of Rouen. After Reims, it is also the second largest subprefecture in France. The name ''Le Havre'' means "the harbour" or "the port". Its inhabitants are known as ''Havrais'' or ''Havraises''. The city and port were founded by King Francis I in 1517. Economic development in the Early modern period was hampered by religious wars, conflicts with the English, epidemics, and storms. It was from the end of the 18th century that Le Havre started growing and the port took off first with the slave trade then other international trade. After the 1944 bombings the firm of Auguste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canary Islands
The Canary Islands (; es, Canarias, ), also known informally as the Canaries, are a Spanish autonomous community and archipelago in the Atlantic Ocean, in Macaronesia. At their closest point to the African mainland, they are west of Morocco. They are the southernmost of the autonomous communities of Spain. The islands have a population of 2.2 million people and they are the most populous special territory of the European Union. The seven main islands are (from largest to smallest in area) Tenerife, Fuerteventura, Gran Canaria, Lanzarote, La Palma, La Gomera, and El Hierro. The archipelago includes many smaller islands and islets, including La Graciosa, Alegranza, Isla de Lobos, Montaña Clara, Roque del Oeste, and Roque del Este. It also includes a number of rocks, including those of Salmor, Fasnia, Bonanza, Garachico, and Anaga. In ancient times, the island chain was often referred to as "the Fortunate Isles". The Canary Islands are the southernmost region of Spain, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fuerteventura
Fuerteventura () is one of the Canary Islands, in the Atlantic Ocean, part of the North Africa region, and politically part of Spain. It is located away from the northwestern coast of Africa. The island was declared a biosphere reserve by UNESCO in 2009. Fuerteventura belongs to Province of Las Palmas, one of the two provinces that form the autonomous community of the Canary Islands. The island's capital is Puerto del Rosario, where the Insule Council is found, the government of the island. Fuerteventura has 119,732 inhabitants (), the fourth largest population of the Canary Islands and the third of the Province. At , it is the second largest of the Canary Islands, after Tenerife. From a geological point of view, Fuerteventura is the oldest island in the archipelago. Toponymy The island's name is a compound word formed by the Spanish words for "strong" (fuerte) and "fortune" (ventura). Traditionally, Fuerteventura's name has been regarded as a reference to the strong winds aro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lock (water Navigation)
A lock is a device used for raising and lowering boats, ships and other watercraft between stretches of water of different levels on river and canal waterways. The distinguishing feature of a lock is a fixed chamber in which the water level can be varied; whereas in a caisson lock, a boat lift, or on a canal inclined plane, it is the chamber itself (usually then called a caisson) that rises and falls. Locks are used to make a river more easily navigable, or to allow a canal to cross land that is not level. Later canals used more and larger locks to allow a more direct route to be taken. Pound lock A ''pound lock'' is most commonly used on canals and rivers today. A pound lock has a chamber with gates at both ends that control the level of water in the pound. In contrast, an earlier design with a single gate was known as a flash lock. Pound locks were first used in China during the Song Dynasty (960–1279 AD), having been pioneered by the Song politician and naval ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Purification
Water purification is the process of removing undesirable chemicals, biological contaminants, suspended solids, and gases from water. The goal is to produce water that is fit for specific purposes. Most water is purified and disinfected for human consumption (drinking water), but water purification may also be carried out for a variety of other purposes, including medical, pharmacological, chemical, and industrial applications. The history of water purification includes a wide variety of methods. The methods used include physical processes such as filtration, sedimentation, and distillation; biological processes such as slow sand filters or biologically active carbon; chemical processes such as flocculation and chlorination; and the use of electromagnetic radiation such as ultraviolet light. Water purification can reduce the concentration of particulate matter including suspended particles, parasites, bacteria, algae, viruses, and fungi as well as reduce the concentration of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
