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Point Wilson Lighthouse
The Point Wilson Light is an active aid to navigation located in Fort Worden State Park near Port Townsend, Jefferson County, Washington. It is one of the most important navigational aids in the state, overlooking the entrance to Admiralty Inlet, the waterway connecting the Strait of Juan de Fuca and Puget Sound. The lighthouse was listed on the Washington State Heritage Register and the National Register of Historic Places in 1971. History Point Wilson's first lighthouse was built in 1879 by the United States Lighthouse Service as a companion to the Admiralty Head Light built some 18 years earlier on the eastern side of Admiralty Inlet. A square wooden tower projecting from the roof of a two-story, Cape Cod–style keeper's quarters held a fixed fourth-order Fresnel lens. The station also included a fog signal building with 12-inch, steam-powered fog whistle. In 1904, landfill was added to the site in an effort to protect the station, but time and tide having worked their destruc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Admiralty Inlet
Admiralty Inlet is a strait in the U.S. state of Washington connecting the eastern end of the Strait of Juan de Fuca to Puget Sound. It lies between Whidbey Island and the northeastern part of the Olympic Peninsula. Boundaries It is generally considered to be the northern part of Puget Sound's Main Basin. Its northern boundary is defined as a line running between Point Wilson and Point Partridge, and it extends south to the southern end of Whidbey Island and Point No Point on the Kitsap Peninsula, where it joins the Central Basin of Puget Sound's Main Basin. Admiralty Inlet's area is , with a volume of . Its shoreline is in length. Its mean depth is .Features Of Puget Sound Region: Oceanography And Physical Processes Chapter 3 of th [...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] |
Washington Heritage Register
The Washington Heritage Register is an official list of sites and properties found throughout Washington state, United States. The Washington Heritage Register is administered by the Washington State Department of Archaeology and Historic Preservation, and it is governed by several state laws including RCW 27.34.200 and 25-12 WAC. The register includes districts, sites, buildings, structures, and objects which meet criteria as being significant to local or state history and culture. The register does not provide fiscal support to listed entries; instead, listing is an honorary designation which raises public awareness. Sites which are listed on the 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 v ... are automatically added to the Washington Herit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transportation Buildings And Structures In Jefferson County, Washington
Transport (in British English), or transportation (in American English), is the intentional movement of humans, animals, and goods from one location to another. Modes of transport include air, land (rail and road), water, cable, pipeline, and space. The field can be divided into infrastructure, vehicles, and operations. Transport enables human trade, which is essential for the development of civilizations. Transport infrastructure consists of both fixed installations, including roads, railways, airways, waterways, canals, and pipelines, and terminals such as airports, railway stations, bus stations, warehouses, trucking terminals, refueling depots (including fueling docks and fuel stations), and seaports. Terminals may be used both for interchange of passengers and cargo and for maintenance. Means of transport are any of the different kinds of transport facilities used to carry people or cargo. They may include vehicles, riding animals, and pack animals. Vehicles may i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouses On The National Register Of Historic Places In Washington (state)
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] |
Lighthouses Completed In 1913
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] |
Houses Completed In 1879
A house is a single-unit residential building. It may range in complexity from a rudimentary hut to a complex structure of wood, masonry, concrete or other material, outfitted with plumbing, electrical, and heating, ventilation, and air conditioning systems.Schoenauer, Norbert (2000). ''6,000 Years of Housing'' (rev. ed.) (New York: W.W. Norton & Company). Houses use a range of different roofing systems to keep precipitation such as rain from getting into the dwelling space. Houses may have doors or locks to secure the dwelling space and protect its inhabitants and contents from burglars or other trespassers. Most conventional modern houses in Western cultures will contain one or more bedrooms and bathrooms, a kitchen or cooking area, and a living room. A house may have a separate dining room, or the eating area may be integrated into another room. Some large houses in North America have a recreation room. In traditional agriculture-oriented societies, domestic animals such as c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Historic American Engineering Record In Washington (state)
History (derived ) is the systematic study and the documentation of the human activity. The time period of event before the invention of writing systems is considered prehistory. "History" is an umbrella term comprising past events as well as the memory, discovery, collection, organization, presentation, and interpretation of these events. Historians seek knowledge of the past using historical sources such as written documents, oral accounts, art and material artifacts, and ecological markers. History is not complete and still has debatable mysteries. History is also an academic discipline which uses narrative to describe, examine, question, and analyze past events, and investigate their patterns of cause and effect. Historians often debate which narrative best explains an event, as well as the significance of different causes and effects. Historians also debate the nature of history as an end in itself, as well as its usefulness to give perspective on the problems of the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouses Completed In 1879
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] |
Washington State Parks
The Washington State Park System is a set of State park, state parks owned by the state government of Washington (state), Washington, United States, USA. They are managed by the Washington State Parks and Recreation Commission. There are over 140 parks throughout the state, including 19 Marine park, marine parks and 11 Historical Parks. The park system was established in 1913 by the creation of the Washington State Board of Park Commissioners. The first two parks were formed from donated land in 1915, and by 1929 the state had seven parks. In 1947 the State Parks Committee was renamed to the Washington State Parks and Recreation Commission and given authority to oversee the state park system. By 1960 the number of state parks had increased to 130. In 2003, the Washington State Legislature introduced a $5-a-day parking fee, meant to fund park-related construction projects; more than a quarter of the fees collected went into the fee-collection system itself. Park use decreased more t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Admiralty Head Light
The Admiralty Head Light is a deactivated aid to navigation located on Whidbey Island near Coupeville, Island County, Washington, on the grounds of Fort Casey State Park. The restored lighthouse overlooks Admiralty Inlet. It was the companion to the Point Wilson Light, which sits four miles away on Admiralty Inlet's western shore. History Two lighthouses have been built on Admiralty Head. Only the second remains. Admiralty Head, the east entrance point of Admiralty Inlet, is the southeast extremity of a succession of bluffs extending northward along the western shore of Whidbey Island to Point Partridge, where the bluffs attain their highest elevation. ;Original lighthouse In 1858, the United States purchased on the headland for $400. The original lighthouse was a wooden, two-story house with tower projecting from the gable. It was completed in 1861. It had a fourth order Fresnel lens, which was visible at . In 1890, construction of Fort Casey forced the relocation of the light ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port Townsend, Washington
Port Townsend is a city on the Quimper Peninsula in Jefferson County, Washington, United States. The population was 10,148 at the 2020 United States Census. It is the county seat and only incorporated city of Jefferson County. In addition to its natural scenery at the northeast tip of the Olympic Peninsula, the city is known for the many Victorian buildings remaining from its late 19th-century heyday, numerous annual cultural events, and as a maritime center for independent boatbuilders and related industries and crafts. The Port Townsend Historic District is a U.S. National Historic Landmark District. It is also significantly drier than the surrounding region due to being in the rainshadow of the Olympic Mountains, receiving only of rain per year. History The bay was originally named "Port Townshend" by Captain George Vancouver in 1792, for his friend the Marquis of Townshend. It was immediately recognized as a good safe harbor, although strong south winds and poor holdin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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