Action Off Lerwick
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Action Off Lerwick
The action off Lerwick (, "Lerrick") was a naval engagement on 17 October 1917 fought in the North Sea during the First World War. The German Empire, German light, minelaying cruisers and attacked a westbound convoy of twelve Collier (ship), colliers and other merchant ships and their escorts, part of the regular Scandinavian convoy. The two escorting destroyers and nine neutral Scandinavian ships were sunk off Shetland, Scotland. British Admiralty, Admiralty code breakers had uncovered the call signs of ''Bremse'' and ''Brummer'' and by direction finding knew that they had sailed from Wilhelmshaven to (Lister Deep) north of Sylt but an operation as far north as the Scandinavian convoy collier route was not anticipated by the British naval commanders because the Admiralty failed promptly to pass on the information. Both of the British destroyer commanders were commended for their bravery, though some members of the Admiralty felt that by leaving the convoy to engage a superior ...
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First World War
World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting took place mainly in European theatre of World War I, Europe and the Middle Eastern theatre of World War I, Middle East, as well as in parts of African theatre of World War I, Africa and the Asian and Pacific theatre of World War I, Asia-Pacific, and in Europe was characterised by trench warfare; the widespread use of Artillery of World War I, artillery, machine guns, and Chemical weapons in World War I, chemical weapons (gas); and the introductions of Tanks in World War I, tanks and Aviation in World War I, aircraft. World War I was one of the List of wars by death toll, deadliest conflicts in history, resulting in an estimated World War I casualties, 10 million military dead and more than 20 million wounded, plus some 10 million civilian de ...
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Room 40
Room 40, also known as 40 O.B. (old building; officially part of NID25), was the cryptanalysis section of the British Admiralty during the First World War. The group, which was formed in October 1914, began when Rear-Admiral Henry Oliver, the Director of Naval Intelligence, gave intercepts from the German radio station at Nauen, near Berlin, to Director of Naval Education Alfred Ewing, who constructed ciphers as a hobby. Ewing recruited civilians such as William Montgomery, a translator of theological works from German, and Nigel de Grey, a publisher. It was estimated that during the war Room 40 decrypted around 15,000 intercepted German communications from wireless and telegraph traffic. Most notably the section intercepted and decoded the Zimmermann Telegram, a secret diplomatic communication issued from the German Foreign Office in January 1917 that proposed a military alliance between Germany and Mexico. Its decoding has been described as the most significant intellig ...
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Moray Firth
The Moray Firth (; , or ) is a roughly triangular inlet (or firth) of the North Sea, north and east of Inverness, which is in the Highland council area of the north of Scotland. It is the largest firth in Scotland, stretching from Duncansby Head (near John o' Groats) in the north, in the Highland council area, and Fraserburgh in the east, in the Aberdeenshire council area, to Inverness and the Beauly Firth in the west. Therefore, three council areas have Moray Firth coastline: Highland to the west and north of the Moray Firth and Highland, Moray and Aberdeenshire to the south. The firth has more than of coastline, much of which is cliff. Etymology The firth is named after the 10th-century Province of Moray, whose name in turn is believed to derive from the sea of the firth itself. The local names ''Murar'' or ''Morar'' are suggested to derive from , the Gaelic for sea, whilst ''Murav'' and ''Morav'' are believed to be rooted in Celtic words (sea) and (side), co ...
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Outer Silver Pit
The Outer Silver Pit is a west-to-east valley in the bed of the North Sea. Its widest part is east of Flamborough Head in England. It is between the Dogger Bank and the ridge dividing the northern from the southern North Sea basins, which runs between Norfolk and Friesland. When the sea level was lower (such as in the Ice Age) it was a lake in Doggerland, and sea-bed-penetrating sonar bathymetry has found its shorelines and courses and estuaries of rivers that ran into it from the high land of the Dogger Bank; it overflowed into a river at its west end.''Mapping Doggerland'', ed. Vincent Gaffney and others, publ. Archaeopres2007, Bed of the Rhine? In the Cromerian Stage, before more recent glaciation had influenced the area, a ridge of high ground, the Weald-Artois Anticline, joined the Upper Cretaceous chalk in Kent, England to that of the Boulonnais at '' Cap Blanc-Nez'' in the Pas de Calais, France. It is possible that in the Cromerian Stage, the Outer Silver Pit was the ...
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Dogger Bank
Dogger Bank ( Dutch: ''Doggersbank'', German: ''Doggerbank'', Danish: ''Doggerbanke'') is a large sandbank in a shallow area of the North Sea about off the east coast of England. During the last ice age, the bank was part of a large landmass connecting mainland Europe and the British Isles, now known as Doggerland. It has long been known by fishermen to be a productive fishing bank; it was named after the '' doggers'', medieval Dutch fishing boats especially used for catching cod. At the beginning of the 21st century, the area was identified as a potential site for a UK round 3 wind farm, being developed as Dogger Bank Wind Farm. Name The name Dogger Bank was first recorded in the mid-17th century. It is probably derived from the word "'' dogger''" used for a two-masted boat of the type that trawled for fish in the area in medieval times. The area has similar names in Dutch, German, Swedish, and Danish. Geography The bank extends over about , and is about in exte ...
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HMS Marvel
HMS or hms may refer to: Education * Habib Medical School, of the Islamic University in Uganda * Hartley–Melvin–Sanborn Community School District of Iowa, United States * Harvard Medical School of Harvard University * Heidelberg Middle School, a former American school in Heidelberg, Germany * Hongwanji Mission School, in Hawaii, United States * Horley Methodist School, Teluk Intan Horley Methodist School (; abbreviated HMS) is a school in Teluk Intan, Perak, Malaysia. Established in 1898 as the Government Tamil School, the school was transferred to the Methodist Episcopal Mission in the following year and was later renamed t ..., in Malaysia Medicine and science * Hartford Medical Society, an American professional association based in Hartford, Connecticut *Health management system * Hexose monophosphate shunt, an alternative name for the pentose phosphate pathway * Highly migratory species, a classification of fish * Hypermobility spectrum disorder, formerly hypermobili ...
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