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Nautical Measured Mile
A nautical measured mile is a nautical mile which is marked by two pairs of towers. A mile is measured by sailing on a given bearing and lining up the pairs of towers. The start of the mile is recorded when the first pair of towers line up and the end of the mile recorded when the second pair line up. To accurately measure performance ships must make at least four to six runs in both directions to allow for the wind and tide. There are several nautical measured miles around the British Isles: * Between Talland Bay and Hannafore, West Looe, Cornwall. * At Skelmorlie, North Ayrshire, Scotland, between Skelmorlie Pier and Skelmorlie Castle. * Lower Hope Reach, near Gravesend on the Thames Estuary, between Cliffe Creek coastguard station and Lower Hope Point. *Four Admiralty day beacons (unlit) were installed on Maplin Sands, adjacent to The Warp channel. Buoys in the channel marked the course and vessels under test were required to fly a blue-and-white swal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Admiralty Distance Poles At St Abb's Head - Geograph
Admiralty most often refers to: *Admiralty, Hong Kong *Admiralty (United Kingdom), military department in command of the Royal Navy from 1707 to 1964 *The rank of admiral *Admiralty law Admiralty can also refer to: Buildings * Admiralty, Trafalgar Square, a pub in London *Admiralty, Saint Petersburg, Russia * Admiralteyskaya (Saint Petersburg Metro), a metro station in Saint Petersburg, Russia, the name means "Admiralty" *Admiralty Arch in London, England * Admiralty House, London *Admiralty House, Sydney * Dutch Admiralty, a group of follies at Tsarskoye Selo, Russia * Former Admiralty House, Singapore Law * Admiralty court * Admiralty law, also called Maritime Law * Amirauté (New France) Naval organizations *Admiralty (navy), a governmental and/or naval body responsible for the administration of a navy Germany * German Imperial Admiralty, ''Kaiserliche Admiralität'' * German Imperial Admiralty Staff, ''Admiralstab'' Netherlands *Admiralty of Amsterdam *Admiralty of Fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gravesend
Gravesend is a town in northwest Kent, England, situated 21 miles (35 km) east-southeast of Charing Cross (central London) on the Bank (geography), south bank of the River Thames, opposite Tilbury in Essex. Located in the diocese of Rochester, it is the administrative centre of the borough of Gravesham. Gravesend marks the eastern limit of the Greater London Built-up Area, as defined by the UK Office for National Statistics. It had a population of 58,102 in 2021. Its geographical situation has given Gravesend strategic importance throughout the maritime history, maritime and History of communication, communications history of South East England. A Thames Gateway commuter town, it retains strong links with the River Thames, not least through the Port of London Authority Pilot Station, and has witnessed rejuvenation since the advent of High Speed 1 rail services via Gravesend railway station. The station was recently refurbished and has a new bridge. Name Recorded as Graves ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sannox
Sannox () is a village on the Isle of Arran, Scotland. The village is within the parish of Kilbride. The name comes from the name the Vikings gave to the area, ''Sandvik'', meaning the Sandy Bay. History Within North Glen Sannox it is possible to find an Iron Age fort and the remains of a village, abandoned in 1829 as part of the process of the Highland clearances. Most of the inhabitants of this village emigrated to Canada where they built a replica of the church that was constructed in Sannox in 1822. The replica church in Inverness, Quebec, is no longer there (since the 1950s) and only the cemetery remains. Remains of the houses and runrigs - a type of farming common in western Scotland at the time - are visible throughout North Glen Sannox. Mining was a source of employment in the area, when in 1840 a mine was opened in Glen Sannox. However operations only lasted around two decades. Operations ended when in 1862 the 11th Duke of Hamilton closed the mine, claiming that it s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isle Of Arran
The Isle of Arran (; ) or simply Arran is an island off the west coast of Scotland. It is the largest island in the Firth of Clyde and the seventh-largest Scottish island, at . Counties of Scotland, Historically part of Buteshire, it is in the Subdivisions of Scotland, unitary council area of North Ayrshire. In the 2011 census it had a resident population of 4,629. Though culturally and physically similar to the Hebrides, it is separated from them by the Kintyre, Kintyre peninsula. Often referred to as "Scotland in Miniature", the Island is divided into highland and lowland areas by the Highland Boundary Fault and has been described as a "geologist's paradise".Haswell-Smith (2004) pp. 11–17. Arran has been continuously inhabited since the early Neolithic period. Numerous prehistory, prehistoric remains have been found. From the 6th century onwards, Goidelic languages, Goidelic-speaking peoples from Ireland colonised it and it became a centre of religious activity. In the trou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berwickshire
Berwickshire (; ) is a historic county, registration county and lieutenancy area in south-eastern Scotland, on the English border. The county takes its name from Berwick-upon-Tweed, its original county town, which was part of Scotland at the time of the county's formation in the twelfth century, but became part of England in 1482 after several centuries of swapping back and forth between the two kingdoms. After the loss of Berwick, Duns and Greenlaw both served as county town at different periods. Berwickshire County Council existed from 1890 until 1975, when the area became part of the Borders region, with most of the historic county becoming part of the lower-tier Berwickshire district. Berwickshire district was abolished in 1996, when all the districts in the Borders region merged to become the Scottish Borders council area. The low-lying part of Berwickshire between the Tweed and the Lammermuirs is known as "the Merse", from an old Scots word for a floodplain, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
St Abb's Head
St Abb's Head is a rocky promontory by the village of St Abbs in Berwickshire, Scotland, and a national nature reserve administered by the National Trust for Scotland. St Abb's Head Lighthouse was designed and built by the brothers David Stevenson and Thomas Stevenson and began service on 24 February 1862. Geology The layered sedimentary rocks of greywacke and siltstone which lie to the north and south of the Head were laid down at the bottom of the sea between 460 and 410 million years ago. The Head itself is made from hard volcanic rock which formed as lava flowed from volcanoes around 400 million years ago. The different type of rocks accounts for the contrast in colour between the rocks of the Head and those of mainland cliffs. The softer sedimentary rocks have eroded over time, leaving behind the high headland made from the harder rock. However, even this tough volcanic rock has been affected by the actions of the sea, leaving steep gullies and sea stacks which are ideal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maplin Sands
The Maplin Sands are mudflats on the northern bank of the Thames estuary, off Foulness Island, near Southend-on-Sea in Essex, England, though they actually lie within the neighbouring borough of Rochford. They form a part of the Essex Estuaries Special Area of Conservation due to their value for nature conservation, with a large colony of dwarf eelgrass ('' Zostera noltei'') and associated animal communities. To the northeast, the Maplin sands are contiguous with the Foulness sands, which are bordered to the north by the Whitaker Channel; the seaward continuation of the River Crouch. To the south runs the Swin Channel. History Maplin Sands is crossed by the ancient trackway known as The Broomway. A screw-pile lighthouse was built on the sands in 1838 by Messrs. Mitchel and Sons (sic- more often Mitchell and Sons) on the recommendation of James Walker of Trinity House. It was the first screwpile lighthouse ever to be designed. Although construction of the Maplin Sands Ligh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Day Beacon
A day beacon (sometimes ''daybeacon'') is an unlighted nautical sea mark. A signboard identifying it is called a '' day mark''. Day beacons typically mark channels whose key points are marked by lighted buoys. They may also mark smaller navigable routes in their entirety. They are the most common navigation aid in shallow water, as they are relatively inexpensive to install and maintain. Navigation around them is similar to that around other navigation aids. Identification Lateral marking For historical reasons, there are two systems for lateral day beacons. When proceeding from open water towards harbor, marks with cylindrical topmarks or square dayboards are kept to port in both regions, but colors and numbers are reversed. When lateral beacons are paired, vessels should pass between the pairing. However, beacons are also frequently placed individually. Generally, single lateral beacons are at the inside corner of a turn. Interior or exterior placement can be determined ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Kingdom Hydrographic Office
The United Kingdom Hydrographic Office (UKHO) is the UK's agency for providing hydrographic and marine geospatial data to mariners and maritime organisations across the world. The UKHO is a trading fund of the Ministry of Defence (MoD) and is located in Taunton, Somerset, with a workforce of approximately 900 staff. The UKHO is responsible for operational support to the Royal Navy and other defence customers. Supplying defence and the commercial shipping industry, they help ensure Safety of Life at Sea (SOLAS), protect the marine environment and support the efficiency of global trade. The UKHO also produces Admiralty charts, providing SOLAS-compliant charts, publications and digital services for ships trading internationally. History Establishment and early operation The Admiralty's first Hydrographer was Alexander Dalrymple, appointed in 1795 on the order of King George III. The existing charts were brought together and catalogued. The first chart Dalrymple published ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Bartholomew And Son
Collins Bartholomew, formerly John Bartholomew and Son, is a long-established map publishing company originally based in Edinburgh, Scotland. It is now a subsidiary of HarperCollins. History George Bartholomew (8 January 1784 – 23 October 1871, active from 1797) worked as an engraver for Daniel Lizars Sr. in Edinburgh. His son, John Bartholomew Senior (1805–9 April 1861), began working independently in about 1826, founding the firm that bears his name. Notable work includeBlack's ''General Atlas''of 1846. John Bartholomew Junior (1831–1893) and his son John George Bartholomew (1860–1920) brought the firm to prominence as the renamed ' Edinburgh Geographical Institute'. In particular, J.G. Bartholomew made the firm a publisher of its own works, rather than a producer of maps for other firms. John (Ian) Bartholomew (1890–1962) oversaw the '' Times Survey Atlas of the World'' (1922) and later the Mid-Century Edition of the '' Times Atlas of the World'' (1955–60 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London Gazette
London is the capital and largest city of both England and the United Kingdom, with a population of in . Its wider metropolitan area is the largest in Western Europe, with a population of 14.9 million. London stands on the River Thames in southeast England, at the head of a tidal estuary down to the North Sea, and has been a major settlement for nearly 2,000 years. Its ancient core and financial centre, the City of London, was founded by the Romans as Londinium and has retained its medieval boundaries. The City of Westminster, to the west of the City of London, has been the centuries-long host of the national government and parliament. London grew rapidly in the 19th century, becoming the world's largest city at the time. Since the 19th century the name "London" has referred to the metropolis around the City of London, historically split between the counties of Middlesex, Essex, Surrey, Kent and Hertfordshire, which since 1965 has largely comprised the adm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nautical Mile
A nautical mile is a unit of length used in air, marine, and space navigation, and for the definition of territorial waters. Historically, it was defined as the meridian arc length corresponding to one minute ( of a degree) of latitude at the equator, so that Earth's polar circumference is very near to 21,600 nautical miles (that is 60 minutes × 360 degrees). Today the international nautical mile is defined as exactly . The derived unit of speed is the knot, one nautical mile per hour. Unit symbol There is no single internationally agreed symbol, with several symbols in use. * NM is used by the International Civil Aviation Organization. * nmi is used by the Institute of Electrical and Electronics Engineers and the United States Government Publishing Office. * M is used as the abbreviation for the nautical mile by the International Hydrographic Organization. * nm is a non-standard abbreviation used in many maritime applications and texts, including U.S. Government Coa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
