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Burnham-on-Sea High Lighthouse
The High lighthouse or pillar lighthouse is one of three lighthouses in Burnham-on-Sea, Somerset, England. A Grade II listed building, it is no longer functional as a lighthouse and has been converted for use as a private dwelling. Location Burnham-on-Sea is notable for its beach and mudflats, which are characteristic of Bridgwater Bay and the rest of the Bristol Channel where the tide can recede for over . Burnham is close to the estuary of the River Parrett where it flows into the Bristol Channel, which has the second highest tidal range in the world of , second only to the Bay of Fundy in Eastern Canada. The constantly shifting sands have always been a significant risk to shipping in the area. History The pillar or High Lighthouse was designed and built by Joseph Nelson for Trinity House, and was first lit on 1 December 1832. It was equipped with four oil lamps, which shone through a window set behind a half-gallery on the uppermost storey (at a focal height of above ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burnham-on-Sea
Burnham-on-Sea is a seaside town in Somerset, England, at the mouth of the River Parrett, upon Bridgwater Bay. Burnham was a small fishing village until the late 18th century when it began to grow because of its popularity as a seaside resort. Burnham-on-Sea forms part of the parish of Burnham-on-Sea and Highbridge and shares a town council with its neighbouring small market town of Highbridge. According to the 2011 census the population of the parish (including Highbridge) was 19,576, of which the most populous wards 'Burnham Central' and 'Burnham North'; totalled 13,601. Burnham-on-Sea is famous for its low lighthouse. The lighthouse was built in 1832 and is a Grade-II listed building with a red and white striped facade. The position of the town on the edge of the Somerset Levels and moors where they meet the Bristol Channel, has resulted in a history dominated by land reclamation and sea defences since Roman times. Burnham was seriously affected by the Bristol Channel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burnham-on-Sea Low Lighthouse
The Low Lighthouse is one of three historic lighthouses in Burnham-on-Sea, Somerset, England, and the only one of the three which is still active. It is a Grade II listed building and stands on the foreshore. First lit in 1832, the Low Lighthouse operated in conjunction with the (onshore) High Lighthouse for 137 years. Then, in 1969 (after improvements had been made to the High Lighthouse) the Low Lighthouse was deactivated; but later, in 1993, the Low Lighthouse was re-established and the High Lighthouse was instead decommissioned). The Low Lighthouse has long been known as 'the Lighthouse on Legs', as evident in an 1859 guide book: "the writer has heard merry children, while sporting on the sands, call this smaller beacon, ''the lighthouse on legs''". Location Burnham-on-Sea is notable for its beach and mudflats, which are characteristic of Bridgwater Bay and the rest of the Bristol Channel where the tide can recede for over . Burnham is close to the estuary of the River ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Incandescent Light Bulb
An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a wire filament heated until it glows. The filament is enclosed in a glass bulb with a vacuum or inert gas to protect the filament from oxidation. Current is supplied to the filament by terminals or wires embedded in the glass. A bulb socket provides mechanical support and electrical connections. Incandescent bulbs are manufactured in a wide range of sizes, light output, and voltage ratings, from 1.5 volts to about 300 volts. They require no external regulating equipment, have low manufacturing costs, and work equally well on either alternating current or direct current. As a result, the incandescent bulb became widely used in household and commercial lighting, for portable lighting such as table lamps, car headlamps, and flashlights, and for decorative and advertising lighting. Incandescent bulbs are much less efficient than other types of electric lighting, converting les ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parabolic Reflectors
A parabolic (or paraboloid or paraboloidal) reflector (or dish or mirror) is a reflective surface used to collect or project energy such as light, sound, or radio waves. Its shape is part of a circular paraboloid, that is, the surface generated by a parabola revolving around its axis. The parabolic reflector transforms an incoming plane wave travelling along the axis into a spherical wave converging toward the focus. Conversely, a spherical wave generated by a point source placed in the focus is reflected into a plane wave propagating as a collimated beam along the axis. Parabolic reflectors are used to collect energy from a distant source (for example sound waves or incoming star light). Since the principles of reflection are reversible, parabolic reflectors can also be used to collimate radiation from an isotropic source into a parallel beam. In optics, parabolic mirrors are used to gather light in reflecting telescopes and solar furnaces, and project a beam of light in flashl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argand Lamp
The Argand lamp is a type of oil lamp invented in 1780 by Aimé Argand. Its output is 6 to 10 candelas, brighter than that of earlier lamps. Its more complete combustion of the candle wick and oil than in other lamps required much less frequent trimming of the wick. In France, the lamp is called "Quinquet", after Antoine-Arnoult Quinquet, a pharmacist in Paris, who used the idea originated by Argand and popularized it in France. Quinquet sometimes is credited with the addition of the glass chimney to the lamp. Design The Argand lamp had a sleeve-shaped wick mounted so that air can pass both through the center of the wick and also around the outside of the wick before being drawn into a cylindrical chimney which steadies the flame and improves the flow of air. Early models used ground glass which was sometimes tinted around the wick. An Argand lamp used whale oil, seal oil, colza, olive oil or other vegetable oil as fuel which was supplied by a gravity feed from a reservoir mou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tarbat Ness Lighthouse
The Tarbat Ness Lighthouse is located at the North West tip of the Tarbat Ness peninsula near the fishing village of Portmahomack on the east coast of Scotland. It was built in 1830 by Robert Stevenson and has an elevation of and 203 steps to the top of the tower. History At the Battle of Tarbat Ness in the 11th century, Thorfinn the Mighty defeated "Karl Hundason", possibly a Viking name for Macbeth. Further down the peninsula at Portmahomack, in the 1480s the Clan Ross slaughtered a raiding party from the Clan Mackay by locking them in the Tarbat Old Church and setting fire to it. This event is known as the Battle of Tarbat. Lighthouse A storm in the Moray Firth in November 1826 saw the loss of 16 vessels and brought many applications for lighthouses to be constructed at Tarbat Ness and at Covesea Skerries. Tarbat Ness Lighthouse was engineered by Robert Stevenson for the Northern Lighthouse Board and the light was first exhibited on 26 January 1830. James Smith of Inv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Light Characteristic
A light characteristic is all of the properties that make a particular navigational light identifiable. Graphical and textual descriptions of navigational light sequences and colours are displayed on nautical charts and in Light Lists with the chart symbol for a lighthouse, lightvessel, buoy or sea mark with a light on it. Different lights use different colours, frequencies and light patterns, so mariners can identify which light they are seeing. Abbreviations While light characteristics can be described in prose, e.g. "Flashing white every three seconds", lists of lights and navigation chart annotations use abbreviations. The abbreviation notation is slightly different from one light list to another, with dots added or removed, but it usually follows a pattern similar to the following (see the chart to the right for examples). * An abbreviation of the type of light, e.g. "Fl." for flashing, "F." for fixed. * The color of the light, e.g. "W" for white, "G" for green, "R" for red, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Occulting Light
A light characteristic is all of the properties that make a particular navigational light identifiable. Graphical and textual descriptions of navigational light sequences and colours are displayed on nautical charts and in Light Lists with the chart symbol for a lighthouse, lightvessel, buoy or sea mark with a light on it. Different lights use different colours, frequencies and light patterns, so mariners can identify which light they are seeing. Abbreviations While light characteristics can be described in prose, e.g. "Flashing white every three seconds", lists of lights and navigation chart annotations use abbreviations. The abbreviation notation is slightly different from one light list to another, with dots added or removed, but it usually follows a pattern similar to the following (see the chart to the right for examples). * An abbreviation of the type of light, e.g. "Fl." for flashing, "F." for fixed. * The color of the light, e.g. "W" for white, "G" for green, "R" for red, " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Light Characteristic
A light characteristic is all of the properties that make a particular navigational light identifiable. Graphical and textual descriptions of navigational light sequences and colours are displayed on nautical charts and in Light Lists with the chart symbol for a lighthouse, lightvessel, buoy or sea mark with a light on it. Different lights use different colours, frequencies and light patterns, so mariners can identify which light they are seeing. Abbreviations While light characteristics can be described in prose, e.g. "Flashing white every three seconds", lists of lights and navigation chart annotations use abbreviations. The abbreviation notation is slightly different from one light list to another, with dots added or removed, but it usually follows a pattern similar to the following (see the chart to the right for examples). * An abbreviation of the type of light, e.g. "Fl." for flashing, "F." for fixed. * The color of the light, e.g. "W" for white, "G" for green, "R" for red, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minehead
Minehead is a coastal town and civil parish in Somerset, England. It lies on the south bank of the Bristol Channel, north-west of the county town of Taunton, from the boundary with the county of Devon and in proximity of the Exmoor National Park. The parish of Minehead has a population of approximately 11,981, making it the most populous town in the western part of the Somerset West and Taunton local government district, which in turn, is the worst area in the country for social mobility. This figure includes Alcombe and Woodcombe, suburban villages which have been subsumed into Minehead. There is evidence of human occupation in the area since the Bronze and Iron Ages. Before the Norman conquest, it was held by Ælfgar, Earl of Mercia and after it by William de Moyon and his descendants, who administered the area from Dunster Castle, which was later sold to Sir George Luttrell and his family. There was a small port at Minehead by 1380, which grew into a major trading centre d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foreland Point
Foreland Point is a rocky headland in Devon near Lynmouth, and is the most northerly point along the Devon and Exmoor coast. The highest cliff is above the high tide, although the highest point of the entire headland is near Countisbury (a village around a mile away) at . The headland is owned by the National Trust; some areas are open to public access all year, as part of the South West Coast Path, while other areas have limited access. The Trinity House-operated Lynmouth Foreland Lighthouse is also located here. The area of the sea between Bideford and Foreland Point is a Marine Conservation Zone A Marine Conservation Zone (MCZ) is a type of marine nature reserve in UK waters. They were established under the Marine and Coastal Access Act (2009) and are areas designated with the aim to protect nationally important, rare or threatened habit .... References Headlands of Devon Bristol Channel Protected areas of Devon National Trust properties in Devon {{Dev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steepholm
Steep Holm ( cy, Ynys Rhonech, ang, Ronech and later ) is an English island lying in the Bristol Channel. The island covers at high tide, expanding to at mean low water. At its highest point it is above mean sea level. Administratively it forms part of the unitary authority of North Somerset within the ceremonial county of Somerset; between 1 April 1974 and 1 April 1996, it was administered as part of Avon. Nearby is Flat Holm island ( cy, Ynys Echni), part of Wales. The Carboniferous Limestone island rises to about and serves as a wind and wave break, sheltering the upper reaches of the Bristol Channel. The island is now uninhabited, with the exception of the wardens. It is protected as a nature reserve and Site of Special Scientific Interest (SSSI) with a large bird population and plants including wild peonies. There was a signal station or watchtower on the island in Roman times, but there may have been human habitation as early as the Iron Age. In the 6th century it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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