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Baishamen Lighthouse
Baishamen Lighthouse (), located on Haidian Island, Haikou, in the province of Hainan, China, is the sixth tallest lighthouse in the world, and the second tallest in China. Listed as Baisha Men. Rising from a three-storey hexagonal base, the structure is tall. This active lighthouse has a focal plane of and sends out a white flash every six seconds. The triangular, cylindrical tower and base are made entirely of white concrete. It serves as a landfall light for the city of Haikou, and is located on the east side of the entrance to Haikou Bay, the harbor of Haikou on the northeast shore of Haidian Island. See also * List of lighthouses in China * List of tallest lighthouses in the world * Mulantou Lighthouse Mulantou Lighthouse (), also known as the Hainan Head Light, located in the province of Hainan, China, is the fifth-tallest lighthouse in the world, and the tallest in China. Built in 1995, this active lighthouse has a focal plane of . It emits t ... – the tallest l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haidian Island
Haidian Island () is an island that forms part of the city of Haikou, Hainan Province, China. It is separated from the main part of Haikou by the Haidian River. The north coast faces the Qiongzhou Strait. The east coast faces Xinbu Island, separated by part of the Nandu River. The west coast faces Haikou Bay. Both Renmin Avenue and Heping Avenue are the main streets on the island. The former that runs through the middle of the island from the south at the Renmin Bridge to the north shore at the newly built Baishamen Park, which contains an amusement park. Hainan University's main campus is located on the west side of this avenue. The western part of the island has been expanded as part of a land reclamation project started in the late 2000s. Notable locations *Hainan University's main campus is situated between Haidian West 3rd Road and Haidian West 5th Road. *Created in 2010, Baishamen Park, an ocean-side recreational leisure facility is located on the north coast. It contai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haikou
Haikou (; ), also spelled as Hoikow is the capital and most populous city of the Chinese province of Hainan. Haikou city is situated on the northern coast of Hainan, by the mouth of the Nandu River. The northern part of the city is on the Haidian Island, which is separated from the main part of Haikou by the Haidian River, a branch of the Nandu. Administratively, Haikou is a prefecture-level city, comprising four districts, and covering . There are 2,046,189 inhabitants in the built-up area, all living within the four urban districts of the city. Haikou was originally a port city, serving as the port for Qiongshan. During the Chinese Civil War, Haikou was one of the last Nationalist strongholds to be taken by the Communists — with the Battle of Hainan Island in 1950. Currently, more than half of the island's total trade still goes through Haikou's ports. The Temple of the Five Lords is located to the southeast of the city. The city is home to Hainan University, a comprehen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concrete
Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens (cures) over time. Concrete is the second-most-used substance in the world after water, and is the most widely used building material. Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminum combined. Globally, the ready-mix concrete industry, the largest segment of the concrete market, is projected to exceed $600 billion in revenue by 2025. This widespread use results in a number of environmental impacts. Most notably, the production process for cement produces large volumes of greenhouse gas emissions, leading to net 8% of global emissions. Other environmental concerns include widespread illegal sand mining, impacts on the surrounding environment such as increased surface runoff or urban heat island effect, and potential public health implications from toxic ingredients. Significant research and development is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triangular Prism
In geometry, a triangular prism is a three-sided prism; it is a polyhedron made of a triangular base, a translated copy, and 3 faces joining corresponding sides. A right triangular prism has rectangular sides, otherwise it is ''oblique''. A uniform triangular prism is a right triangular prism with equilateral bases, and square sides. Equivalently, it is a polyhedron of which two faces are parallel, while the surface normals of the other three are in the same plane (which is not necessarily parallel to the base planes). These three faces are parallelograms. All cross-sections parallel to the base faces are the same triangle. As a semiregular (or uniform) polyhedron A right triangular prism is semiregular or, more generally, a uniform polyhedron if the base faces are equilateral triangles, and the other three faces are squares. It can be seen as a truncated trigonal hosohedron, represented by Schläfli symbol t. Alternately it can be seen as the Cartesian product of a triangle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexagon
In geometry, a hexagon (from Ancient Greek, Greek , , meaning "six", and , , meaning "corner, angle") is a six-sided polygon. The total of the internal angles of any simple polygon, simple (non-self-intersecting) hexagon is 720°. Regular hexagon A ''regular polygon, regular hexagon'' has Schläfli symbol and can also be constructed as a Truncation (geometry), truncated equilateral triangle, t, which alternates two types of edges. A regular hexagon is defined as a hexagon that is both equilateral polygon, equilateral and equiangular polygon, equiangular. It is bicentric polygon, bicentric, meaning that it is both cyclic polygon, cyclic (has a circumscribed circle) and tangential polygon, tangential (has an inscribed circle). The common length of the sides equals the radius of the circumscribed circle or circumcircle, which equals \tfrac times the apothem (radius of the inscribed figure, inscribed circle). All internal angles are 120 degree (angle), degrees. A regular hexago ... [...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] |
Haikou Bay
Haikou Bay is a bay on the northern coast of Hainan Province, China, in the Qiongzhou Strait. It is named for Haikou City, which is situated on the coast. This shallow bay spans approximately 12 km from its eastern boundary at the northwestern tip of Haidian Island to its western boundary roughly at Hainan International Convention And Exhibition Center. Features Within the bay are the following from west to east: * Holiday Beach *Nanhai Pearl Artificial Island, an under-construction island owned by HNA Group off the coast of Holiday Beach *Haikou Xiuying Port *The northern edge of Haikou City * Evergreen Park, a large park on the coast * Mayard International Yacht Club *The mouth of the Haidian River Land reclamation Part of the western edge of Haidian Island is being extended in a major land reclamation project. Also, several new areas of land off the coast of Haikou are being created, including the Nanhai Pearl Artificial Island Nanhai Pearl Artificial Island () is an ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Lighthouses In China
This is a list of lighthouses in the China, People's Republic of China which includes mainland China and the two Special administrative regions of China, special administrative regions of Hong Kong and Macau. Lighthouses in Mainland China Lighthouses in Hong Kong Following the History of Hong Kong (1800s–1930s), establishment of British Hong Kong as a trade port in 1841, the first lighthouses in Hong Kong were planned and built to assist international navigation. The first lighthouse to enter service was Cape D'Aguilar Lighthouse in April 1875, which was operated by lighthouse keepers who received specialist training in London and lived in the lighthouse in one-month shifts. As of 2017, five lighthouse structures in Hong Kong that date from before the Second World War remain in operation: Cape D'Aguilar, Green Island Lighthouse (Hong Kong), Green Island (two lighthouses), Waglan Lighthouse, Waglan, and Tang Lung Chau Lighthouse, Tang Lung Chau. All of them are listed heritage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Tallest Lighthouses In The World
This is a list of the tallest lighthouses, by tower height (as opposed to focal height, i.e. height of the lamp of a lighthouse from water level). The list includes only "traditional lighthouses", as defined by ''The Lighthouse Directory'', i.e. buildings built by navigation safety authorities primarily as an aid to navigation. As such, its information regarding construction, year, and notes is from the list of tallest lighthouses at ''The Lighthouse Directory''. Sources are given for all other information. Heights are from the United States Coast Guard Light List for the United States and from NGA List of Lights for the rest of the world, unless a better source exists. Where several lighthouses share the same height, they share the same position, and are all marked with "=". See also * List of lighthouses and lightvessels References {{TBSW * Lighthouses A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mulantou Lighthouse
Mulantou Lighthouse (), also known as the Hainan Head Light, located in the province of Hainan, China, is the fifth-tallest lighthouse in the world, and the tallest in China. Built in 1995, this active lighthouse has a focal plane of . It emits two white flashes every 15 seconds. The Mulantou Lighthouse is tall. It is located on a sharp promontory at the northeastern tip of the province, and marks the south side of the entrance to Qiongzhou Strait. The structure is round cylindrical concrete rising from a 2-story circular base. It has a large circular observation room. This lighthouse is white in colour with red trim. See also * List of lighthouses in China *List of tallest lighthouses in the world * Baishamen Lighthouse Baishamen Lighthouse (), located on Haidian Island, Haikou, in the province of Hainan, China, is the sixth tallest lighthouse in the world, and the second tallest in China. Listed as Baisha Men. Rising from a three-storey hexagonal base, the struct ... ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouses Completed In 2000
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 2000
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] |
