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Charleston Light
Charleston Light, also known as Sullivan's Island Lighthouse, is located on Sullivan's Island, South Carolina, which is the northern entrance to Charleston Harbor. The lighthouse was erected to replace the defunct Morris Island Light on Morris Island, which was at risk of being destroyed by erosion, but remains standing and was stabilized in 2010. Construction was started in 1960, and it was first lit on June 15, 1962. Charleston Light has a steel frame, an aluminum alloy skin, and a triangular cross section. It is tall. Its slim, triangular structure was built to withstand winds of 125 miles per hour, and the focal plane of the light is above mean sea level. Originally, it was painted white and red-orange, but was later repainted white and black after citizens complained about the distracting color of the upper half. It is the only U.S. lighthouse with an elevator and air conditioning, and was the last onshore manned lighthouse to be built by the Federal Government. The Texas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sullivan's Island, South Carolina
Sullivan's Island is a town and island in Charleston County, South Carolina, Charleston County, South Carolina, United States, at the entrance to Charleston Harbor, with a population of 1,791 at the 2010 United States Census, 2010 census. The town is part of the Charleston, South Carolina metropolitan area, Charleston metropolitan area, and is considered a very affluent suburb of Charleston, South Carolina, Charleston. Sullivan's Island was the point of entry for approximately 40 to 50 percent of the 400,000 Slavery in the colonial history of the United States, enslaved Africans brought to Colonial history of the United States, Colonial America, meaning that 99% of all African Americans have ancestors that came through the island. It has been likened to Ellis Island, the 19th-century reception point for immigrants in New York City. During the American Revolution, the island was the site of a Battle of Sullivan's Island, major battle at Fort Sullivan on June 28, 1776, since renamed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouses In South Carolina
A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lenses and to serve as a beacon for navigational aid, for maritime pilots at sea or on inland waterways. Lighthouses mark dangerous coastlines, hazardous shoals, reefs, rocks, and safe entries to harbors; they also assist in aerial navigation. Once widely used, the number of operational lighthouses has declined due to the expense of maintenance and has become uneconomical since the advent of much cheaper, more sophisticated and effective electronic navigational systems. History Ancient lighthouses Before the development of clearly defined ports, mariners were guided by fires built on hilltops. Since elevating the fire would improve the visibility, placing the fire on a platform became a practice that led to the development of the lighthouse. In antiquity, the lighthouse functioned more as an entrance marker to ports than as a warning signal for reefs and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charleston Light - Panoramio
Charleston most commonly refers to: * Charleston, South Carolina * Charleston, West Virginia, the state capital * Charleston (dance) Charleston may also refer to: Places Australia * Charleston, South Australia Canada * Charleston, Newfoundland and Labrador * Charleston, Nova Scotia New Zealand * Charleston, New Zealand United Kingdom * Charleston Farmhouse, Sussex, artists' house open to the public * Charleston, Angus, near Dundee, Scotland * Charleston, Dundee, Scotland * Charleston, Paisley, Scotland United States * Charleston, Arizona * Charleston, Arkansas * Charleston, Illinois * Charleston, Iowa * Charleston, Kansas * Charleston, Kentucky * Charleston, Maine * Charleston, Mississippi * Charleston, Missouri * Charleston, Nevada * Charleston, New Jersey * Charleston, New York * Charleston, Staten Island, in New York City, New York * Charleston, North Carolina * Charleston, Oklahoma * Charleston, Oregon * Charleston, Tennessee * Charleston, Utah * Charleston, Vermont * C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fort Sumter And Fort Moultrie National Historical Park
Fort Sumter and Fort Moultrie National Historical Park is a United States National Historical Park located in Charleston County, in coastal South Carolina. It mainly protects Fort Sumter, Fort Moultrie, the Charleston Light and Liberty Square, Charleston. It was known as Fort Sumter National Monument until it was renamed in the John D. Dingell Jr. Conservation, Management, and Recreation Act, signed March 12, 2019. The Fort Sumter Visitor Education Center is located 340 Concord Street, Liberty Square, Charleston, South Carolina, on the banks of the Cooper River. The center features museum exhibits about the disagreements between the North and South that led to the incidents at Fort Sumter, particularly in South Carolina and Charleston. Displays include slavery and the plantation culture, major figures, politics, and how the Confederate Army was formed. This site is also the main departure point for tour boats heading to Fort Sumter in Charleston Harbor. Park rangers and volunt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aerobeacon
An aerobeacon is a light assembly used to create a fixed or flashing signal visible over long distances. It consists of a high intensity electric lamp mounted with a focusing device in a cylindrical housing, which usually is rotated on a vertical axis by an electric motor. The sweep of the narrow beam thus produced gives the flashing effect. Aerobeacons were originally developed for aviation use, mostly as aerodrome beacons, but they also saw extensive use in lighthouses. They were far less expensive to manufacture and maintain than classic glass Fresnel lenses, and much more durable; they could be mounted and exposed to the weather. Historic models include the DCB-24, which used a single parabolic reflector; the DCB-224, a double-beamed version of the DCB-24; and the DCB-36, which used a system of plastic Fresnel type lenses. Manufacturers included Carlisle & Finch in Cincinnati and the Crouse-Hinds Company in Syracuse, New York. Aerobeacons have replaced fragile glass Fresnel le ... [...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] |
Candlepower
Candlepower (abbreviated as cp or CP) is a unit of measurement for luminous intensity. It expresses levels of light intensity relative to the light emitted by a candle of specific size and constituents. The historical candlepower is equal to 0.981 candelas. In modern usage, ''candlepower'' is sometimes used as a synonym for ''candela''. History The term candlepower was originally defined in the United Kingdom, by the Metropolitan Gas Act 1860, as the light produced by a pure spermaceti candle that weighs and burns at a rate of . Spermaceti is a material from the heads of sperm whales, and was once used to make high-quality candles. At the time the UK established candlepower as a unit, the French standard of light was based on the illumination from a Carcel burner. They defined the unit was that illumination that emanates from a lamp burning pure colza oil (obtained from the seed of the plant '' Brassica campestris'') at a defined rate. Ten standard candles equaled about one Car ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
