|
Kvitsøy Lighthouse
Kvitsøy Lighthouse ( no, Kvitsøy fyr) is a coastal lighthouse and heritage building in the municipality of Kvitsøy in Rogaland county, Norway. It is located on the west side of the village of Ydstebøhamn on the island of Kvitsøy (island), Kvitsøy. The lighthouse marks the entrance to the huge Boknafjorden, the main shipping route to the city of Stavanger, and inland Rogaland county. The first lighthouse at the site was established in 1700, and the present lighthouse was built in 1829. The lighthouse was automated in 1969, and has been a protected historic building since 1998. The 1829 tower The 1829 lighthouse was in height. The tower was extended by in 1859 and it gained another in height when a first order lens was installed in 1910. The present tall lighthouse is an octagonal stone tower. There is a Fresnel lens, 2nd order Fresnel lens at the top of the tower. The building is painted white, with the lantern on the top painted red. Today, the light sits at an elevati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rogaland
Rogaland () is a Counties of Norway, county in Western Norway, bordering the North Sea to the west and the counties of Vestland to the north, Vestfold og Telemark to the east and Agder to the east and southeast. In 2020, it had a population of 479,892. The administrative centre of the county is the Stavanger (city), city of Stavanger, which is one of the largest cities in Norway. Rogaland is the centre of the Norwegian petroleum industry. In 2016, Rogaland had an unemployment rate of 4.9%, one of the highest in Norway. In 2015, Rogaland had a fertility rate of 1.78 children per woman, which is the highest in the country. The Diocese of Stavanger for the Church of Norway includes all of Rogaland county. Etymology ''Rogaland'' is the region's Old Norse name, which was revived in modern times. During Denmark's rule of Norway until the year 1814, the county was named ''Stavanger amt (subnational entity), amt'', after the large city of Stavanger. The first element is the plural ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Octagon
In geometry, an octagon (from the Greek ὀκτάγωνον ''oktágōnon'', "eight angles") is an eight-sided polygon or 8-gon. A '' regular octagon'' has Schläfli symbol and can also be constructed as a quasiregular truncated square, t, which alternates two types of edges. A truncated octagon, t is a hexadecagon, . A 3D analog of the octagon can be the rhombicuboctahedron with the triangular faces on it like the replaced edges, if one considers the octagon to be a truncated square. Properties of the general octagon The sum of all the internal angles of any octagon is 1080°. As with all polygons, the external angles total 360°. If squares are constructed all internally or all externally on the sides of an octagon, then the midpoints of the segments connecting the centers of opposite squares form a quadrilateral that is both equidiagonal and orthodiagonal (that is, whose diagonals are equal in length and at right angles to each other).Dao Thanh Oai (2015), "Equilatera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouses In Rogaland
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] |
Towers Completed In 1700
A tower is a tall structure, taller than it is wide, often by a significant factor. Towers are distinguished from masts by their lack of guy-wires and are therefore, along with tall buildings, self-supporting structures. Towers are specifically distinguished from buildings in that they are built not to be habitable but to serve other functions using the height of the tower. For example, the height of a clock tower improves the visibility of the clock, and the height of a tower in a fortified building such as a castle increases the visibility of the surroundings for defensive purposes. Towers may also be built for observation, leisure, or telecommunication purposes. A tower can stand alone or be supported by adjacent buildings, or it may be a feature on top of a larger structure or building. Etymology Old English ''torr'' is from Latin ''turris'' via Old French ''tor''. The Latin term together with Greek τύρσις was loaned from a pre-Indo-European Mediterranean language, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouses Completed In 1700
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] |
