|
Hohlgangsanlage Tunnels, Jersey
Hohlgangsanlage are a number of tunnels constructed in Jersey by occupying German forces during the occupation of Jersey. The Germans intended these bunkers to protect troops and equipment from aerial bombing and to act as fortifications in their own right. The word ''Hohlgangsanlage'' can be translated as "cave passage installations".Jersey's German Tunnels by Michael Ginns MBE, CIOS Jersey The Channel Island tunnels are the only ones on the Atlantic wall to be referred to as ''Hohlgangsanlagen''. All the tunnels except for Ho5 are incomplete, and some never progressed beyond planning. The partly complete tunnels are, nonetheless, substantial in size. Completed sections were used for various purposes such as storage. In 1944, when construction stopped, 244,000 m3 of rock had been extracted for tunnel digging collectively from Guernsey, Jersey and Alderney (the majority from Jersey). At the same point in 1944, the entire Atlantic Wall from Norway to the Franco-Spanish b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlantic Wall
The Atlantic Wall (german: link=no, Atlantikwall) was an extensive system of coastal defences and fortifications built by Nazi Germany between 1942 and 1944 along the coast of continental Europe and Scandinavia as a defence against an anticipated Allied invasion of Nazi-occupied Europe from the United Kingdom, during World War II. The manning and operation of the Atlantic Wall was administratively overseen by the German Army, with some support from ''Luftwaffe'' ground forces. The ''Kriegsmarine'' (German Navy) maintained a separate coastal defence network, organised into a number of sea defence zones. Hitler ordered the construction of the fortifications in 1942 through his Führer Directive No. 40. More than half a million French workers were drafted to build it. The wall was frequently mentioned in Nazi propaganda, where its size and strength were usually exaggerated. The fortifications included colossal coastal guns, batteries, mortars, and artillery, and thousands o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bunker
A bunker is a defensive military fortification designed to protect people and valued materials from falling bombs, artillery, or other attacks. Bunkers are almost always underground, in contrast to blockhouses which are mostly above ground. They were used extensively in World War I, World War II, and the Cold War for weapons facilities, command and control centers, and storage facilities. Bunkers can also be used as protection from tornadoes. Trench bunkers are small concrete structures, partly dug into the ground. Many artillery installations, especially for coastal artillery, have historically been protected by extensive bunker systems. Typical industrial bunkers include mining sites, food storage areas, dumps for materials, data storage, and sometimes living quarters. When a house is purpose-built with a bunker, the normal location is a reinforced below-ground bathroom with fiber-reinforced plastic shells. Bunkers deflect the blast wave from nearby explosions to prevent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Track Gauge
In rail transport, track gauge (in American English, alternatively track gage) is the distance between the two rails of a railway track. All vehicles on a rail network must have wheelsets that are compatible with the track gauge. Since many different track gauges exist worldwide, gauge differences often present a barrier to wider operation on railway networks. The term derives from the metal bar, or gauge, that is used to ensure the distance between the rails is correct. Railways also deploy two other gauges to ensure compliance with a required standard. A '' loading gauge'' is a two-dimensional profile that encompasses a cross-section of the track, a rail vehicle and a maximum-sized load: all rail vehicles and their loads must be contained in the corresponding envelope. A ''structure gauge'' specifies the outline into which structures (bridges, platforms, lineside equipment etc.) must not encroach. Uses of the term The most common use of the term "track gauge" refers to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concrete
Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens (cures) over time. Concrete is the second-most-used substance in the world after water, and is the most widely used building material. Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminum combined. Globally, the ready-mix concrete industry, the largest segment of the concrete market, is projected to exceed $600 billion in revenue by 2025. This widespread use results in a number of environmental impacts. Most notably, the production process for cement produces large volumes of greenhouse gas emissions, leading to net 8% of global emissions. Other environmental concerns include widespread illegal sand mining, impacts on the surrounding environment such as increased surface runoff or urban heat island effect, and potential public health implications from toxic ingredients. Significant research and development is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swine Flu
Swine influenza is an infection caused by any of several types of swine influenza viruses. Swine influenza virus (SIV) or swine-origin influenza virus (S-OIV) refers to any strain of the influenza family of viruses that is endemic in pigs. As of 2009, identified SIV strains include influenza C and the subtypes of influenza A known as H1N1, H1N2, H2N1, H3N1, H3N2, and H2N3. Swine influenza virus is common throughout pig populations worldwide. Transmission of the virus from pigs to humans is rare, and does not always lead to human flu, often resulting only in the production of antibodies in the blood. If transmission causes human flu, it is called zoonotic swine flu. People with regular exposure to pigs are at increased risk of swine flu infections. Around the mid-20th century, identification of influenza subtypes was made possible, allowing accurate diagnosis of transmission to humans. Since then, only 50 such transmissions have been confirmed. These strains of swine flu rarel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carbon Monoxide
Carbon monoxide (chemical formula CO) is a colorless, poisonous, odorless, tasteless, flammable gas that is slightly less dense than air. Carbon monoxide consists of one carbon atom and one oxygen atom connected by a triple bond. It is the simplest molecule of the oxocarbon family. In coordination complexes the carbon monoxide ligand is called carbonyl. It is a key ingredient in many processes in industrial chemistry. The most common source of carbon monoxide is the partial combustion of carbon-containing compounds, when insufficient oxygen or heat is present to produce carbon dioxide. There are also numerous environmental and biological sources that generate and emit a significant amount of carbon monoxide. It is important in the production of many compounds, including drugs, fragrances, and fuels. Upon emission into the atmosphere, carbon monoxide affects several processes that contribute to climate change. Carbon monoxide has important biological roles across phylogenetic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
War Department (United Kingdom)
The War Department was the United Kingdom government department responsible for the supply of equipment to the armed forces of the United Kingdom and the pursuance of military activity. In 1857, it became the War Office. Within the War Office, the name 'War Department' remained in use to describe the military transport services of the War Department Fleet and the War Department Railways. History In 1794, the position of Secretary of State for War was created. The Secretary's department was at first unofficially known as the War Department. Colonial affairs were later added and it became the Colony Department. After the outbreak of war with revolutionary France it became Colony and War Department and on the restoration of peace in 1815 the Colonial Department. In February 1855, the offices of the Secretary of State for War, and Secretary at War were merged and the new department and became the War Department once again until 1857 when it became the War Office. In 1964, the depar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
States Of Jersey
The States Assembly (french: Assemblée des États; Jèrriais: ) is the parliament of Jersey, formed of the island's 37 deputies and the Connétable of each of the twelve parishes. The origins of the legislature of Jersey lie in the system of self-government according to Norman law guaranteed to the Channel Islands by John, King of England, following the division of Normandy in 1204. The States Assembly has exercised uncontested legislative powers since 1771, when the concurrent law-making power of the Royal Court of Jersey was abolished. The Assembly passes and amends laws and regulations; approves the annual budget and taxation; appoints the chief minister, ministers and members of various committees and panels; debates matters proposed by the Council of Ministers, by individual States Members or by one of the committees or panels. Members are also able to ask questions to find out information and to hold ministers to account. Executive powers are exercised by a chief mini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hohlgangsanlage 8
Hohlgangsanlage 8 (often abbreviated to Ho8, also known as the German Underground Hospital or the Jersey War Tunnels) was a partially completed underground hospital complex in St. Lawrence, Jersey, built by German occupying forces during the occupation of Jersey during World War II. Over of tunnels were completed. After the liberation of the Channel Islands, the complex was converted into a museum detailing the occupation and remains a visitor attraction. History After Hitler's October 1941 order to fortify the Channel Islands (as part of the Atlantic Wall), work began on a string of fortifications all around Jersey. Ho8 was intended to be a vast network of tunnels that would allow the German occupying infantry to withstand Allied air raids and bombardment (in preparation for an invasion). Forced labourers from the Organisation Todt (as well as paid labourers and skilled workers) were shipped in to Jersey and put to work building the complex. Many of the workers were Polish, Fre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Char B1 Bis
The Char B1 was a French heavy tank manufactured before World War II. The Char B1 was a specialised break-through vehicle, originally conceived as a self-propelled gun with a 75 mm howitzer in the hull; later a 47 mm gun in a turret was added, to allow it to function also as a , a "battle tank" fighting enemy armour, equipping the armoured divisions of the Infantry Arm. Starting in the early twenties, its development and production were repeatedly delayed, resulting in a vehicle that was both technologically complex and expensive, and already obsolescent when real mass-production of a derived version, the Char B1 "bis", started in the late 1930s. A further up-armoured version, the Char B1 "ter", was only built in two prototypes. Among the most powerfully armed and armoured tanks of its day, the type was very effective in direct confrontations with German armour in 1940 during the Battle of France, but low speed and high fuel consumption made it ill-adapted to the war ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxyacetylene
Principle of burn cutting Oxy-fuel welding (commonly called oxyacetylene welding, oxy welding, or gas welding in the United States) and oxy-fuel cutting are processes that use fuel gases (or liquid fuels such as gasoline or petrol, diesel, bio diesel, kerosene, etc) and oxygen to weld or cut metals. French engineers Edmond Fouché and Charles Picard became the first to develop oxygen-acetylene welding in 1903. Pure oxygen, instead of air, is used to increase the flame temperature to allow localized melting of the workpiece material (e.g. steel) in a room environment. A common propane/air flame burns at about , a propane/oxygen flame burns at about , an oxyhydrogen flame burns at and an acetylene/oxygen flame burns at about . During the early 20th century, before the development and availability of coated arc welding electrodes in the late 1920s that were capable of making sound welds in steel, oxy-acetylene welding was the only process capable of making welds of excepti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albert Speer
Berthold Konrad Hermann Albert Speer (; ; 19 March 1905 – 1 September 1981) was a German architect who served as the Minister of Armaments and War Production in Nazi Germany during most of World War II. A close ally of Adolf Hitler, he was convicted at the Nuremberg trials and sentenced to 20 years in prison. An architect by training, Speer joined the Nazi Party in 1931. His architectural skills made him increasingly prominent within the Party, and he became a member of Hitler's inner circle. Hitler commissioned him to design and construct structures including the Reich Chancellery and the Nazi party rally grounds in Nuremberg. In 1937, Hitler appointed Speer as General Building Inspector for Berlin. In this capacity he was responsible for the Central Department for Resettlement that evicted Jewish tenants from their homes in Berlin. In February 1942, Speer was appointed as Reich Minister of Armaments and War Production. Using misleading statistics, he promoted himsel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.svg "Click for more on -> Hohlgangsanlage Tunnels, Jersey")
_on_States_Building_in_St_Helier%2C_Jersey.jpg "Click for more on -> States Of Jersey")
