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Churchill Barriers
The Churchill Barriers are four causeways in the Orkney islands with a total length of . They link the Orkney Mainland in the north to the island of South Ronaldsay via Burray and the two smaller islands of Lamb Holm and Glimps Holm. The barriers were built between May 1940 and September 1944, primarily as naval defences to protect the anchorage at Scapa Flow, but since 12 May 1945, serve as road links between the islands. The two southern barriers, Glimps Holm to Burray and Burray to South Ronaldsay, are Category A listed. History On 14 October 1939, the Royal Navy battleship HMS ''Royal Oak'' was sunk at her moorings within the natural harbour of Scapa Flow, by the under the command of Günther Prien. ''U-47'' had entered Scapa Flow through Holm Sound, one of several eastern entrances to Scapa Flow. The eastern passages were protected by measures including sunken block ships, booms and anti-submarine nets, but ''U-47'' entered at night at high tide by navigating be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glimps Holm
Glimps Holm or Glims Holm ( non, Glums Holm) is a small uninhabited islet in Orkney, Scotland. Geography Glimps Holm lies in Holm Sound, one of the eastern entrances to Scapa Flow, between Mainland, Orkney and the island of Burray. The Churchill Barriers link South Ronaldsay to the Orkney Mainland. Glimps Holm is connected to Lamb Holm, to the northeast, by Barrier number 2, and to Burray by Barrier number 3. History Scapa Flow had many entrances, making it difficult to protect the anchorages in this natural harbour. Blockships had been sunk to close the narrow passages, but these proved inadequate. The Churchill Barriers were built during World War II to block the eastern entrances. Much of the labour for the causeways was provided by over 1300 Italian prisoners of war, captured in North Africa and stationed in Camp 60 on Lamb Holm Lamb Holm is a small uninhabited island in Orkney, Scotland. The Italian Chapel, constructed during the Second World War, is the island's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victory In Europe Day
Victory in Europe Day is the day celebrating the formal acceptance by the Allies of World War II of Germany's unconditional surrender of its armed forces on Tuesday, 8 May 1945, marking the official end of World War II in Europe in the Eastern Front, with the last shots fired on the 11th. Russia and some former Soviet countries celebrate on 9 May. Several countries observe public holidays on the day each year, also called Victory Over Fascism Day, Liberation Day or Victory Day. In the UK it is often abbreviated to VE Day, or V-E Day in the US, a term which existed as early as September 1944, in anticipation of victory. The end of all combat actions was specified as 23:01 Central European Time, which was already 9 May in eastern Europe, and thus several former Soviet bloc countries including Russia and Belarus, as well as some former Yugoslav countries like Serbia, celebrate Victory Day on 9 May. History Adolf Hitler, the Nazi leader, had committed suicide on 30 April dur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Civil Engineering
Civil engineering is a professional engineering discipline that deals with the design, construction, and maintenance of the physical and naturally built environment, including public works such as roads, bridges, canals, dams, airports, sewage systems, pipelines, structural components of buildings, and railways. Civil engineering is traditionally broken into a number of sub-disciplines. It is considered the second-oldest engineering discipline after military engineering, and it is defined to distinguish non-military engineering from military engineering. Civil engineering can take place in the public sector from municipal public works departments through to federal government agencies, and in the private sector from locally based firms to global Fortune 500 companies. History Civil engineering as a discipline Civil engineering is the application of physical and scientific principles for solving the problems of society, and its history is intricately linked to advances in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In Scotland
A building, or edifice, is an enclosed structure with a roof and walls standing more or less permanently in one place, such as a house or factory (although there's also portable buildings). Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons. To better understand the term ''building'' compare the list of nonbuilding structures. Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the human habitat (a place of comfort and safety) and the ''outside'' (a place that at times may be harsh and harmful). Ever since the first cave paintings, buildings have also become objects or canvasses of much artistic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Submarine U-47 (1938)
German submarine ''U-47'' was a Type VIIB U-boat of Nazi Germany's ''Kriegsmarine'' during World War II. She was laid down on 25 February 1937 at Friedrich Krupp Germaniawerft in Kiel as yard number 582 and went into service on 17 December 1938 under the command of Günther Prien. During ''U-47''s career, she sank a total of 31 enemy vessels, including the British battleship , and damaged nine more. ''U-47'' ranks as one of the most successful German U-boats of World War II. In 2016, one of the faulty torpedoes shot at HMS ''Royal Oak'' was found and identified. Design German Type VIIB submarines were preceded by the shorter Type VIIA submarines. ''U-47'' had a displacement of when at the surface and while submerged. She had a total length of , a pressure hull length of , a beam of , a height of , and a draught of . The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing a total of for use while surfaced, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Mainland, Orkney
The Mainland, also known as Hrossey and Pomona, is the main island of Orkney, Scotland. Both of Orkney's burghs, Kirkwall and Stromness, lie on the island, which is also the heart of Orkney's ferry and air connections. Seventy-five per cent of Orkney's population live on the island, which is more densely populated than the other islands of the archipelago. The lengthy history of the island's occupation has provided numerous important archaeological sites and the sandstone bedrock provides a platform for fertile farmland. There is an abundance of wildlife, especially seabirds. Etymology The name Mainland is a corruption of the Old Norse . Formerly the island was also known as meaning 'horse island'. The island is sometimes referred to as '' Pomona'' (or ''Pomonia''), a name that stems from a 16th-century mis-translation by George Buchanan.Buchanan, George (1582''Rerum Scoticarum Historia: The First Book''The University of California, Irvine. Revised 8 March 2003. Retrieved 4 Octo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scottish Environment Protection Agency
The Scottish Environment Protection Agency (SEPA; gd, Buidheann Dìon Àrainneachd na h-Alba) is Scotland's Environmental regulation, environmental regulator and national flood forecasting, flood warning and strategic flood risk management authority.Environment Act (1995). (c.2), London, HMSO [Accessed 29 April 2010]. Its main role is to protect and improve Scotland's environment. SEPA does this by helping business and industry to understand their environmental responsibilities, enabling customers to comply with legislation and good practice and to realise the economic benefits of good environmental practice. One of the ways SEPA does this is through the NetRegs environmental guidance service. It protects communities by regulating activities that can cause harmful pollution and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Climate Change
In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to Earth's climate. The current rise in global average temperature is more rapid than previous changes, and is primarily caused by humans burning fossil fuels. Fossil fuel use, deforestation, and some agricultural and industrial practices increase greenhouse gases, notably carbon dioxide and methane. Greenhouse gases absorb some of the heat that the Earth radiates after it warms from sunlight. Larger amounts of these gases trap more heat in Earth's lower atmosphere, causing global warming. Due to climate change, deserts are expanding, while heat waves and wildfires are becoming more common. Increased warming in the Arctic has contributed to melting permafrost, glacial retreat and sea ice loss. Higher temperatures are also causing m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of York
, mottoeng = On the threshold of wisdom , established = , type = Public research university , endowment = £8.0 million , budget = £403.6 million , chancellor = Heather Melville , vice_chancellor = Charlie Jeffery , students = () , undergrad = () , postgrad = () , city = Heslington, York , country = England , campus = Heslington West, Heslington East, and King's Manor , colours = Dark blue and dark green , website = , logo = UoY_logo_with_shield_2016.png , logo_size = 250px , administrative_staff = 3,091 , affiliations = The University of York (abbreviated as or ''York'' for post-nominals) is a collegiate research university, located in the city of York, England. Established in 1963, the university has expanded to more than thirty departments and centres, covering a wide range of subjects. Situated to the south-east of the city of York, the university campus is about in size. The original campus, Campus West, incorporates the York Scien ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eutrophication
Eutrophication is the process by which an entire body of water, or parts of it, becomes progressively enriched with minerals and nutrients, particularly nitrogen and phosphorus. It has also been defined as "nutrient-induced increase in phytoplankton productivity". Water bodies with very low nutrient levels are termed oligotrophic and those with moderate nutrient levels are termed mesotrophic. Advanced eutrophication may also be referred to as dystrophic and hypertrophic conditions. Eutrophication can affect freshwater or salt water systems. In freshwater ecosystems it is almost always caused by excess phosphorus. In coastal waters on the other hand, the main contributing nutrient is more likely to be nitrogen, or nitrogen and phosphorus together. This depends on the location and other factors. When occurring naturally, eutrophication is a very slow process in which nutrients, especially phosphorus compounds and organic matter, accumulate in water bodies. These nutrients deriv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Italian Chapel
The Italian Chapel is a highly ornate Catholic chapel on Lamb Holm in the Orkney Islands. It was built during World War II by Italian prisoners of war, who were housed on the previously uninhabited island while they constructed the Churchill Barriers to the east of Scapa Flow. Only the concrete foundations of the other buildings of the prisoner-of-war camp survive. The chapel was not completed until after the end of the war, and was restored in the 1960s and again in the 1990s. It is a popular tourist attraction, and a category A listed building. It is in the Roman Catholic Parish of Our Lady & St Joseph in Orkney, part of the Roman Catholic Diocese of Aberdeen. Mass is held in the chapel on the first Sunday of the summer months (April–September). Construction 550 Italian prisoners of war, captured in North Africa during World War II, were brought to Orkney in 1942. They worked on the construction of the Churchill Barriers, four causeways created to block access to Scapa F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
