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Wood End Light
Wood End Light Lookout Station is a historic lighthouse, located at the southwest end of Long Point in Provincetown, Massachusetts. It is located at Wood End, near the southernmost extent of the Provincetown Spit, and acts as a navigational aid to vessels on their approach to Provincetown Harbor Provincetown Harbor is a large natural harbor located in the town of Provincetown, Massachusetts. The harbor is mostly deep and stretches roughly from northwest to southeast and from northeast to southwest – one large, deep basin with no dr .... The Long Point Light Station, further down the peninsula at the tip of Long Point is an identical design and completed in 1875, three years after Wood End Light. The light was first illuminated on November 20, 1872, and added to the National Register of Historic Places in 1987. In 1981, Wood End Light became the first Massachusetts lighthouse to be converted to use solar energy to power the light and fog signal equipment. In 1896 a wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Provincetown, Massachusetts
Provincetown is a New England town located at the extreme tip of Cape Cod in Barnstable County, Massachusetts, in the United States. A small coastal resort town with a year-round population of 3,664 as of the 2020 United States Census, Provincetown has a summer population as high as 60,000. Often called "P-town" or "P'town", the locale is known for its beaches, Provincetown Harbor, harbor, artists, tourist industry, and as a popular gay village, vacation destination for the LGBT+ community. History At the time of European encounter, the area was long settled by the historic Nauset tribe, who had a settlement known as "Meeshawn". They spoke Massachusett language, Massachusett, a Southern New England Algonquian languages, Algonquian language dialect that they shared in common with their closely related neighbors, the Wampanoag people, Wampanoag. On 15 May 1602, having made landfall from the west and believing it to be an island, Bartholomew Gosnold initially named this area " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Above Mean Sea Level
Height above mean sea level is a measure of the vertical distance (height, elevation or altitude) of a location in reference to a historic mean sea level taken as a vertical datum. In geodesy, it is formalized as ''orthometric heights''. The combination of unit of measurement and the physical quantity (height) is called "metres above mean sea level" in the metric system, while in United States customary and imperial units it would be called "feet above mean sea level". Mean sea levels are affected by climate change and other factors and change over time. For this and other reasons, recorded measurements of elevation above sea level at a reference time in history might differ from the actual elevation of a given location over sea level at a given moment. Uses Metres above sea level is the standard measurement of the elevation or altitude of: * Geographic locations such as towns, mountains and other landmarks. * The top of buildings and other structures. * Flying objects such ... [...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] |
VRB-25
The VRB-25 is a lighthouse optical system designed and built by Vega Industries Ltd. in Porirua, New Zealand. It was originally designed in 1993-95 with the assistance of the United States Coast Guard to meet USCG requirements for a robust mechanism requiring minimum maintenance. It has become the Coast Guard's standard 12 volt rotating beacon. The company's literature says there are more than 400 installations worldwide. More than a quarter of the active lighthouses in Maine have one installed. Components A microprocessor controlled 12 volt DC motor drives an array of six or eight acrylic Fresnel lenses around a bulb at one of 248 speeds ranging from 0.5 to 15.9 revolutions per minute (RPM). In the simplest case, all six lenses are used, so that for Boon Island Light, which shows one flash every five seconds, the mechanism rotates at two RPM. Eight lenses are used only when required to achieve more complex characteristics. Maximum range is achieved by using the slowest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Long Point (Cape Cod)
Long Point is a peninsula located in Provincetown, Massachusetts, at the extreme tip of Cape Cod, as it curls back in on itself to create Provincetown Harbor. The Long Point Light was built on this point in 1827. The lighthouse once shared this peninsula with a settlement of fishermen that came to be known as Long Point, Massachusetts. This Provincetown village grew and thrived from 1818 until the late 1850s. When the settlers decided to leave Long Point, they took most of their houses with them – about 30 structures in all – by floating them across the harbor. During the American Civil War, the military established a defensive coastal artillery post and garrison at this location. The Long Point Battery came to be known as "Fort Useless" and "Fort Ridiculous" among the local residents. Today, nothing remains of the village of Long Point, except for the lighthouse and an earthen mound, the last remnant from the earlier military post. Early history A fisherman named John A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wood End, Massachusetts
Wood is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants. It is an organic materiala natural composite of cellulose fibers that are strong in tension and embedded in a matrix of lignin that resists compression. Wood is sometimes defined as only the secondary xylem in the stems of trees, or it is defined more broadly to include the same type of tissue elsewhere such as in the roots of trees or shrubs. In a living tree it performs a support function, enabling woody plants to grow large or to stand up by themselves. It also conveys water and nutrients between the leaves, other growing tissues, and the roots. Wood may also refer to other plant materials with comparable properties, and to material engineered from wood, or woodchips or fiber. Wood has been used for thousands of years for fuel, as a construction material, for making tools and weapons, furniture and paper. More recently it emerged as a feedstock for the production ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Navigational Aid
Navigation is a field of study that focuses on the process of monitoring and controlling the movement of a craft or vehicle from one place to another.Bowditch, 2003:799. The field of navigation includes four general categories: land navigation, marine navigation, aeronautic navigation, and space navigation. It is also the term of art used for the specialized knowledge used by navigators to perform navigation tasks. All navigational techniques involve locating the navigator's position compared to known locations or patterns. Navigation, in a broader sense, can refer to any skill or study that involves the determination of position and direction. In this sense, navigation includes orienteering and pedestrian navigation. History In the European medieval period, navigation was considered part of the set of '' seven mechanical arts'', none of which were used for long voyages across open ocean. Polynesian navigation is probably the earliest form of open-ocean navigation; it was b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Provincetown Harbor
Provincetown Harbor is a large harbor#Natural harbors, natural harbor located in the town of Provincetown, Massachusetts, Provincetown, Massachusetts. The harbor is mostly deep and stretches roughly from northwest to southeast and from northeast to southwest – one large, deep basin with no Dredging, dredged channel necessary for boats to enter and exit. A tall green buoy east of Long Point (Cape Cod), Long Point (i.e., the tip of Cape Cod) marks the entrance to Provincetown Harbor from Cape Cod Bay. Geology Most of Cape Cod was created by the Laurentide Ice Sheet, Laurentide Glacier between 18,000 and 15,000 years ago. However, the Provincetown Spit (landform), Spit, i.e., the land surrounding Provincetown Harbor from High Head in Truro, Massachusetts, North Truro through all of Provincetown, consists largely of marine deposits transported from farther up the shore during the last 6,000 years. History A stone wall discovered in Provincetown in 1805 is thought to have bee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solar Energy
Solar energy is radiant light and heat from the Sun that is harnessed using a range of technologies such as solar power to generate electricity, solar thermal energy (including solar water heating), and solar architecture. It is an essential source of renewable energy, and its technologies are broadly characterized as either passive solar or active solar depending on how they capture and distribute solar energy or convert it into solar power. Active solar techniques include the use of photovoltaic systems, concentrated solar power, and solar water heating to harness the energy. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light-dispersing properties, and designing spaces that naturally circulate air. The large magnitude of solar energy available makes it a highly appealing source of electricity. In 2020 solar energy has been the cheapest source of Electricity. In Saudi Arabia a power purchase agreemen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Park Service
The National Park Service (NPS) is an agency of the United States federal government within the U.S. Department of the Interior that manages all national parks, most national monuments, and other natural, historical, and recreational properties with various title designations. The U.S. Congress created the agency on August 25, 1916, through the National Park Service Organic Act. It is headquartered in Washington, D.C., within the main headquarters of the Department of the Interior. The NPS employs approximately 20,000 people in 423 individual units covering over 85 million acres in all 50 states, the District of Columbia, and US territories. As of 2019, they had more than 279,000 volunteers. The agency is charged with a dual role of preserving the ecological and historical integrity of the places entrusted to its management while also making them available and accessible for public use and enjoyment. History Yellowstone National Park was created as the first national par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wood End Massachusetts Light 2009
Wood is a porous and fibrous structural tissue found in the Plant stem, stems and roots of trees and other woody plants. It is an organic materiala natural composite material, composite of cellulose fibers that are strong in tension and embedded in a :wikt:matrix, matrix of lignin that resists compression. Wood is sometimes defined as only the secondary xylem in the stems of trees, or it is defined more broadly to include the same type of tissue elsewhere such as in the roots of trees or shrubs. In a living tree it performs a support function, enabling woody plants to grow large or to stand up by themselves. It also conveys water and nutrients between the leaf, leaves, other growing tissues, and the roots. Wood may also refer to other plant materials with comparable properties, and to material engineered from wood, or woodchips or fiber. Wood has been used for thousands of years for fuel, as a construction material, for making tools and weapons, furniture and paper. More rec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouses Completed In 1873
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] |
