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TAT-12 13
TAT-1 (Transatlantic No. 1) was the first submarine transatlantic telephone cable system. It was laid between Kerrera, Oban, Scotland and Clarenville, Newfoundland. Two cables were laid between 1955 and 1956 with one cable for each direction. It was inaugurated on September 25, 1956. The cable was able to carry 35 simultaneous telephone calls. A 36th channel was used to carry up to 22 telegraph lines. History The first transatlantic telegraph cable had been laid in 1858 (see Cyrus West Field). It only operated for a month, but was replaced with a successful connection in 1866. A radio-based transatlantic telephone service was started in 1927, charging £9 (about US$45, or roughly $550 in 2010 dollars) for three minutes and handling around 300,000 calls a year. Although a telephone cable was discussed at that time, it was not practical until a number of technological advances arrived in the 1940s. The developments that made TAT-1 possible were coaxial cable, polyethylene ins ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Bell System Technical Journal (1922) (14753547484)
''The'' is a grammatical Article (grammar), article in English language, English, denoting nouns that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the Most common words in English, most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VSNL International Canada
VSNL International Canada or Tata Communications (Canada) ULC (formerly Teleglobe) is an international Telephone company, telco carrier. The company is a subsidiary of Tata Communications, part of India's Tata Group and based in Montreal, Quebec. Part of their recent work has involved the updating of the CANTAT Transatlantic telephone cable, transatlantic cable system that connects the United Kingdom and Newfoundland and Labrador, Newfoundland under the Atlantic Ocean. The latest version of CANTAT, CANTAT-3, had a capacity of 5 Gbit/s in each direction across the Atlantic. History The company was, in 1950, a Canadian federal Crown corporation called Canadian Overseas Telecommunications Corporation (COTC). In 1975 the COTC was renamed Teleglobe Canada. After the 1984 Canadian federal election, 1984 election, Prime Minister Brian Mulroney began the process of privatizing Crown corporations and Teleglobe Canada was one of the target assets. It was finally sold to a small telec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cable Landing Point
A cable landing point is the location where a Submarine cable, submarine or other underwater cable makes landfall. The term is most often used for the landfall points of submarine communications cable, submarine telecommunications cables and submarine power cables. The landing will either be direct (in the case of a point-to-point cable system) or via a branch from a main cable using a submarine branching unit. The branch can be several kilometres long. Selection criteria Cable landing points are usually carefully chosen to be in areas: # that have little marine traffic to minimise the risk of cables being damaged by ship anchors and trawler operations; # with gently sloping, sandy or silty sea-floors so that the cable can be buried to minimise the chance of damage; # without strong currents that would uncover buried cables and potentially move cables. Such locations are rare, and will usually be the shared landfall point for several cable systems. Associated facilities Fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Faraday Building
The Faraday Building is in the southwest of the City of London close to St Paul's Cathedral. The land was first acquired by the General Post Office in the 1870s, for the Post Office Savings Bank. In 1902 it was converted to a GPO telephone exchange serving sections of London, and underwent several capacity expansions over the next several years. The eastern extension of the building stands on the site of Doctors' Commons whose members had lower-courts say in ecclesiastical (including, during its currency, probate and divorce) and admiralty matters. In 1933 the original building was rebuilt to house the International Telephone Exchange, more than doubling the size of the building as a whole. The new building included a raised central portion with decorative turrets which was highly controversial at the time as it blocked the view of St Paul's Cathedral from the River Thames. This led to a new law that restricted the height of new buildings in London to protect the sightlines o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inverness
Inverness (; ; from the , meaning "Mouth of the River Ness") is a city in the Scottish Highlands, having been granted city status in 2000. It is the administrative centre for The Highland Council and is regarded as the capital of the Highlands. Historically it served as the county town of the Counties of Scotland, county of Inverness-shire. Inverness lies near two important battle sites: the 11th century, 11th-century battle of Blar Nam Feinne, Blàr nam Fèinne against Norway which took place on the Aird, and the 18th century Battle of Culloden which took place on Culloden, Highland#Battlefield of Culloden, Culloden Moor. It is the northernmost city in the United Kingdom and lies within the Great Glen (Gleann Mòr) at its northeastern extremity where the River Ness enters the Beauly Firth. With human settlement dating back to at least 5,800 BC, Inverness was an established self-governing settlement by the 6th century with the first Royal Charter being granted by Dabíd mac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glasgow
Glasgow is the Cities of Scotland, most populous city in Scotland, located on the banks of the River Clyde in Strathclyde, west central Scotland. It is the List of cities in the United Kingdom, third-most-populous city in the United Kingdom and the 27th-most-populous city in Europe, and comprises Wards of Glasgow, 23 wards which represent the areas of the city within Glasgow City Council. Glasgow is a leading city in Scotland for finance, shopping, industry, culture and fashion, and was commonly referred to as the "second city of the British Empire" for much of the Victorian era, Victorian and Edwardian eras. In , it had an estimated population as a defined locality of . More than 1,000,000 people live in the Greater Glasgow contiguous urban area, while the wider Glasgow City Region is home to more than 1,800,000 people (its defined functional urban area total was almost the same in 2020), around a third of Scotland's population. The city has a population density of 3,562 p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oban
Oban ( ; meaning ''The Little Bay'') is a resort town within the Argyll and Bute council area of Scotland. Despite its small size, it is the largest town between Helensburgh and Fort William, Highland, Fort William. During the tourist season, the town can have a temporary population of up to over 24,000 people. Oban occupies a setting in the Firth of Lorn. The bay forms a near perfect horseshoe, protected by the island of Kerrera; and beyond Kerrera, the Isle of Mull. To the north are the long low island of Lismore, Scotland, Lismore and the mountains of Morvern and Ardgour. Pre-history and archaeology Humans have used the site where Oban now stands since at least Mesolithic times, as evidenced by archaeological remains of cave dwellers found in the town. Just outside the town, stands Dunollie Castle, on a site that overlooks the main entrance to the bay and has been fortified since the Bronze Age. Just to the north of Oban, at Dunbeg, Dunstaffnage, excavations in 2010, b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CS Monarch (1945)
HMTS ''Monarch'', launched on 8 August 1945 and completed during February 1946, was the fourth cable ship with that name. The ship was built for the General Post Office (GPO) for the laying and repair of submarine communications cable and was the largest cable ship in the world when completed and the first cable ship to have all electric cable machinery. The ship was first engaged in repair and update of existing cables which had been neglected during the war. ''Monarch'' laid the first transatlantic telephone cable TAT-1. In 1969 When the GPO became a public corporation, the Post Office, the designation "Her Majesty's Telegraph Ship" (H.M.T.S.) became the more conventional, commercial designation "Cable Ship" (CS). In 1970 the ship was sold to Cable & Wireless and renamed ''Sentinel''.A fifth, smaller, ''Monarch'' for the Post Office was launched in 1975. Background The war loss of left Britain without a large cable ship. The government decided the national need for such a s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cable Ship
A cable layer or cable ship is a deep-sea vessel designed and used to lay underwater cables for telecommunications, for electric power transmission, military, or other purposes. Cable ships are distinguished by large cable sheaves for guiding cable over bow or stern or both. Bow sheaves, some very large, were characteristic of all cable ships in the past, but newer ships are tending toward having stern sheaves only, as seen in the photo of CS ''Cable Innovator'' at the Port of Astoria on this page. The names of cable ships are often preceded by "C.S." as in CS ''Long Lines''. The first transatlantic telegraph cable was laid by cable layers in 1857 to 1858. It briefly enabled telecommunication between Europe and North America before misuse resulted in failure of the line. In 1866 the successfully laid two transatlantic cables, securing future communication between the continents. Modern cable ships Cable ships have unique requirements related to having long idle periods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Post Office Electrical Engineers' Journal
''The Post Office Electrical Engineers' Journal'' (POEEJ) was a quarterly technical journal published by the Institution of Post Office Electrical Engineers between 1908 and 1982. 74 volumes were published in all. When Post Office Telecommunications became British Telecom in 1981, shortly before the latter's privatisation, the Institution changed its name to the Institution of British Telecommunications Engineers. Publication of the POEEJ then ceased in favour of a new journal, ''British Telecommunications Engineering''. The POEEJ documented the development of Britain's telecommunications network throughout most of the 20th century. Special issues marked key events such as the end of World War II, the construction of TAT-1 and the introduction of Subscriber trunk dialling. According to one source, in 1972 the journal had 38,000 readers, of which about 4,500 were not Post Office employees.''How the Secret Telephone War Came to Britain''. Sunday Times, October 15th 1972. See al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siemens Brothers
Siemens Brothers and Company Limited was an electrical engineering design and manufacturing business in London, England. It was first established as a branchThe company started with a small factory at 12 Millbank Row, Westminster SW1, London, near the site of Lambeth Bridge in 1858 by a brother of the founder of the German electrical engineering firm Siemens & Halske. The principal works were at Woolwich where cables and light-current electrical apparatus were produced from 1863 until 1968. The site between the Thames Barrier and Woolwich Dockyard has retained several buildings of historic interest.Saint & Guillery, ''The Survey of London vol. 48: Woolwich'', Yale, 2012online PDF pp. 44-53). New works were built at Stafford in 1903 and Dalston in 1908. During World War I Siemens Brothers was bought by a British consortium because most of its ownership was in the hands of enemy aliens; see ''Graces Guide to British Industrial History''. Siemens Brothers and Company Limited was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kent
Kent is a Ceremonial counties of England, ceremonial county in South East England. It is bordered by Essex across the Thames Estuary to the north, the Strait of Dover to the south-east, East Sussex to the south-west, Surrey to the west, and Greater London to the north-west. The county town is Maidstone. The county has an area of and had population of 1,875,893 in 2022, making it the Ceremonial counties of England#Lieutenancy areas since 1997, fifth most populous county in England. The north of the county contains a conurbation which includes the towns of Chatham, Kent, Chatham, Gillingham, Kent, Gillingham, and Rochester, Kent, Rochester. Other large towns are Maidstone and Ashford, Kent, Ashford, and the City of Canterbury, borough of Canterbury holds City status in the United Kingdom, city status. For local government purposes Kent consists of a non-metropolitan county, with twelve districts, and the unitary authority area of Medway. The county historically included south-ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
