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Sankaty Head Lighthouse
The Sankaty Head Light is a lighthouse located on Nantucket island. It was built in 1850, was automated in 1965, and is still in operation. It is located at the easternmost point of the island, in the village of Siasconset. It was one of the first lighthouses in the United States to receive a Fresnel lens. History The shoals off the eastern coast of Nantucket had a long history as a hazard to navigation. The United States government decided in the 1840s that a prominent lighthouse should be erected to alert mariners to that hazard. Congress appropriated $12,000 for its construction in 1848, with additional funds totaling $8,000 in following years. The light went into service in February 1850. The tower is high; its lower portion is constructed of brick, and its upper part is granite. The light's turning mechanism was powered by a weight-driven brass clockwork, A brick house was built next to the tower at the time of its construction to house the light keeper's family. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siasconset, Massachusetts
Siasconset is a census designated place (CDP) at the eastern end of Nantucket Island, Massachusetts, United States with an elevation of 52 feet (16 m), and a population of 205 at the 2010 census. Although unincorporated, the village has a post office, with the ZIP code 02564. The various spellings of its name, Sconset, Sconset, Seconset, Siasconsett, or Sweseckechi led the Board on Geographic Names to designate its official spelling in 1892. Three of the four golf courses located on the island are in Siasconset: the Siasconset Golf Club, the Sankaty Head Golf Club, and the Nantucket Golf Club. History The area was settled as a fishing village in the 17th century. The core of Auld Lang Syne, one of the older fishing shacks, is believed to date from the 1670s, potentially making it one of the oldest houses on Nantucket. Various other cottages date from the 18th and 19th centuries. Many of the houses were haphazardly expanded, contributing to the unique look of these N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fresnel Lens
A Fresnel lens ( ; ; or ) is a type of composite compact lens developed by the French physicist Augustin-Jean Fresnel (1788–1827) for use in lighthouses. It has been called "the invention that saved a million ships." The design allows the construction of lenses of large aperture and short focal length without the mass and volume of material that would be required by a lens of conventional design. A Fresnel lens can be made much thinner than a comparable conventional lens, in some cases taking the form of a flat sheet. The simpler dioptric (purely refractive) form of the lens was first proposed by Count Buffon and independently reinvented by Fresnel. The ''catadioptric'' form of the lens, entirely invented by Fresnel, has outer elements that use total internal reflection as well as refraction; it can capture more oblique light from a light source and add it to the beam of a lighthouse, making the light visible from greater distances. Description The Fresnel lens redu ... [...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] |
Flashing 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] |
Nantucket, Massachusetts
Nantucket () is an island about south from Cape Cod. Together with the small islands of Tuckernuck and Muskeget, it constitutes the Town and County of Nantucket, a combined county/town government that is part of the U.S. state of Massachusetts. It is the only such consolidated town-county in Massachusetts. As of the 2020 census, the population was 14,255, making it the least populated county in Massachusetts. Part of the town is designated the Nantucket CDP, or census-designated place. The region of Surfside on Nantucket is the southernmost settlement in Massachusetts. The name "Nantucket" is adapted from similar Algonquian names for the island, but is very similar to the endonym of the native Nehantucket tribe that occupied the region at the time of European settlement. Nantucket is a tourist destination and summer colony. Due to tourists and seasonal residents, the population of the island increases to at least 50,000 during the summer months. The average sale price ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouse
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 a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nantucket
Nantucket () is an island about south from Cape Cod. Together with the small islands of Tuckernuck and Muskeget, it constitutes the Town and County of Nantucket, a combined county/town government that is part of the U.S. state of Massachusetts. It is the only such consolidated town-county in Massachusetts. As of the 2020 census, the population was 14,255, making it the least populated county in Massachusetts. Part of the town is designated the Nantucket CDP, or census-designated place. The region of Surfside on Nantucket is the southernmost settlement in Massachusetts. The name "Nantucket" is adapted from similar Algonquian names for the island, but is very similar to the endonym of the native Nehantucket tribe that occupied the region at the time of European settlement. Nantucket is a tourist destination and summer colony. Due to tourists and seasonal residents, the population of the island increases to at least 50,000 during the summer months. The average sale price f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nantucket Whaling Museum
The Nantucket Whaling Museum is a museum located in Nantucket, Massachusetts. It is run by the Nantucket Historical Association. The Whaling Museum is the flagship site of the Nantucket Historical Association’s fleet of properties. Restored in 2005, the Nantucket Whaling Museum has an expanded exhibit and program space that connects the 1847 Hadwen & Barney Oil and Candle Factory and the 1971 Peter Foulger Museum. The new structure includes the Gosnell Hall Whale Hunt Gallery, where a 46 foot (14 meter) long sperm whale skeleton is suspended from the ceiling. The Hadwen & Barney Oil and Candle Factory, featuring the massive lever press, is interpreted as an industrial site where the complicated process of refining oil and making spermaceti candles is explained, along with the other Nantucket industries that arose from the whaling era. Eleven galleries and exhibit spaces featuring artifacts and art pertaining to Nantucket life, art, and ideas are on display. In 2008, the Wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sankaty2010
''Sankaty'' (a.k.a. HMCS ''Sankaty'', a.k.a. ''Charles A. Dunning'') was a propeller-driven steamer that served as a ferry to Martha's Vineyard and Nantucket in Massachusetts; in Rockland, Maine; Stamford, Connecticut and Oyster Bay, Long Island in the United States from 1911 to 1940. During World War II, the ship was requisitioned by the Royal Canadian Navy for service as a minelayer and maintenance vessel along the Canadian Atlantic coast. Following the war the ship returned to a ferry, working the Wood Islands, Prince Edward Island and Caribou, Nova Scotia route in Canada from 1947 until 1964. While being towed to the breaker's yard, the ship sank off the coast of Nova Scotia on October 27, 1964. Description ''Sankaty'' was designed by Chauncey G. Whiton. The ship was long, a slim vessel with twin propellers and twin smokestacks.''The Dukes County Intelligencer''. Vol. 7, No. 4. May 1966 She had a beam, and at the waterline and drew of water. The ship had a depth of h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Register Of Historic Places
The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic value". A property listed in the National Register, or located within a National Register Historic District, may qualify for tax incentives derived from the total value of expenses incurred in preserving the property. The passage of the National Historic Preservation Act (NHPA) in 1966 established the National Register and the process for adding properties to it. Of the more than one and a half million properties on the National Register, 95,000 are listed individually. The remainder are contributing resources within historic districts. For most of its history, the National Register has been administered by the National Park Service (NPS), an agency within the U.S. Department of the Interior. Its goals are to help property owners and inte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Register Of Historic Places Listings In Nantucket County, Massachusetts
__NOTOC__ This is a list of the National Register of Historic Places listings in Nantucket County, Massachusetts. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Nantucket County, Massachusetts, United States. Latitude and longitude coordinates are provided for many National Register properties and districts; these locations may be seen together in a map. There are 4 properties listed on the National Register in the county, including 2 National Historic Landmarks. Another property was once listed but has been removed. Current listings Former listing See also * List of National Historic Landmarks in Massachusetts * National Register of Historic Places listings in Massachusetts References {{Nantucket County, Massachusetts Nantucket County Nantucket () is an island about south from Cape Cod. Together with the small islands of Tuckernuck and Muskeget, it constitutes the Town and C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouses Completed In 1850
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] |
