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Balboa, Panama
Balboa is a district of Panama City, located at the Pacific entrance to the Panama Canal. It was the capital of the Panama Canal Zone under American administration. History The town of Balboa, founded by the United States during the construction of the Panama Canal, was named after Vasco Núñez de Balboa, the Spanish conquistador credited with discovering the Pacific Ocean. The name was suggested to the Panama Canal Zone authorities by the Peruvian ambassador to Panama. The hilly area north of Panama City was home to a few subsistence ranches and unused marshlands prior to being drained, filled, and leveled by the United States Army Corps of Engineers. The town of Balboa, like most towns in the Canal Zone, was served by the Canal Zone Government–operated schools, post office, police and fire stations, commissary, cafeteria, movie theater, service center, bowling alley, other recreational facilities and company stores. There were several schools in the area, including Balb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panama Canal Authority
The Panama Canal Authority (; ACP) is the agency of the government of Panama responsible for the operation and management of the Panama Canal. The ACP took over the administration of the canal from the Panama Canal Commission, the joint US–Panama agency that managed the canal, on December 31, 1999, when the canal was handed over from the United States to Panama as per the Torrijos–Carter Treaties. It is headquartered in Balboa, a district of Panama City. Establishment The Panama Canal Authority is established under Title XIV of the National Constitution, and has exclusive responsibility for the operation, administration, management, preservation, maintenance, and modernization of the canal. It is responsible for the operation of the canal in a safe, continuous, efficient, and profitable manner. The Organic Law of the Panama Canal Authority, passed on June 11, 1997, provides the legal framework for the canal's organization and operation. Organization Because of its uniq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Sovereign States
The following is a list providing an overview of sovereign states around the world with information on their status and recognition of their sovereignty. The 205 listed states can be divided into three categories based on membership within the United Nations System: 193 member states of the United Nations, UN member states, two United Nations General Assembly observers#Current non-member observers, UN General Assembly non-member observer states, and ten other states. The ''sovereignty dispute'' column indicates states having undisputed sovereignty (188 states, of which there are 187 UN member states and one UN General Assembly non-member observer state), states having disputed sovereignty (15 states, of which there are six UN member states, one UN General Assembly non-member observer state, and eight de facto states), and states having a political status of the Cook Islands and Niue, special political status (two states, both in associated state, free association with New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panama Canal Treaties
Panama, officially the Republic of Panama, is a country in Latin America at the southern end of Central America, bordering South America. It is bordered by Costa Rica to the west, Colombia to the southeast, the Caribbean Sea to the north, and the Pacific Ocean to the south. Its capital and largest city is Panama City, whose metropolitan area is home to nearly half of the country's over million inhabitants. Before the arrival of Spanish colonists in the 16th century, Panama was inhabited by a number of different indigenous tribes. It broke away from Spain in 1821 and joined the Republic of Gran Colombia, a union of Nueva Granada, Ecuador, and Venezuela. After Gran Colombia dissolved in 1831, Panama and Nueva Granada eventually became the Republic of Colombia. With the backing of the United States, Panama seceded from Colombia in 1903, allowing the construction of the Panama Canal to be completed by the United States Army Corps of Engineers between 1904 and 1914. The 1977 T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancón, Panama
Ancón is a corregimiento in Panamá District, Panamá Province, Panama with a population of 29,761 as of 2010. Its population as of 1990 was 11,518; its population as of 2000 was 11,169. It is sometimes considered a suburb or small town within Panama City, northeast of the limits of the town of Balboa. Ancon Hill is also the name of a large hill that overlooks Panama City and once served as a form of protection from pirates and sea invasion. The township was originally located around this hill, and was created to house employees of the Panama Canal during its construction. As part of the construction effort, the historic Gorgas Army Hospital was founded and built on the hillside. The first ship to officially transit the canal, , was named after the district. The community continued to serve as housing for employees of the Panama Canal Company until 1980, when parts of it began to be turned over to the Panamanian government under the 1977 Torrijos-Carter Treaties. Modern-day An ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panama Canal Railway
The Panama Canal Railway (PCR, ) is a railway line linking the Atlantic Ocean to the Pacific Ocean in Central America. The route stretches across the Isthmus of Panama from Colón (Atlantic) to Balboa (Pacific, near Panama City). Because of the difficult physical conditions of the route and state of technology, the construction was renowned as an international engineering achievement, one that cost US$8 million and the lives of an estimated 5,000 to 10,000 workers. Opened in 1855, the railway preceded the Panama Canal by half a century; the railway was vital in assisting the construction of the canal in the early 1900s. With the opening of the canal, the railroad's route was changed as a result of the creation of Gatun Lake, which flooded part of the original route. Following World War II, the railroad's importance declined and much of it fell into a state of neglect until 1998, when a project to rebuild the railroad to haul intermodal traffic began; the new railroad opened ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panamax
Panamax and New Panamax (or Neopanamax) are terms for the size limits for ships traveling through the Panama Canal. The limits and requirements are published by the Panama Canal Authority (ACP) in a publication titled "Vessel Requirements". These requirements also describe topics like exceptional dry seasonal limits, propulsion, communications, and detailed ship design. The allowable size is limited by the width and length of the available lock chambers, by the depth of water in the canal, and by the height of the Bridge of the Americas since that bridge's construction, along with the clearance under the Atlantic and Centennial Bridges since their constructions in 2019 and 2004 respectively. These dimensions give clear parameters for ships destined to traverse the Panama Canal and have influenced the design of cargo ships, naval vessels, and passenger ships. Panamax specifications have been in effect since the opening of the canal in 1914. In 2009, the ACP published the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submarine
A submarine (often shortened to sub) is a watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited underwater capability.) The term "submarine" is also sometimes used historically or informally to refer to remotely operated vehicles and Autonomous underwater vehicle, robots, or to medium-sized or smaller vessels (such as the midget submarine and the wet sub). Submarines are referred to as ''boats'' rather than ''ships'' regardless of their size. Although experimental submarines had been built earlier, submarine design took off during the 19th century, and submarines were adopted by several navies. They were first used widely during World War I (1914–1918), and are now used in many navy, navies, large and small. Their military uses include: attacking enemy surface ships (merchant and military) or other submarines; aircraft carrier protection; Blockade runner, blockade running; Ballistic missile submarine, nuclear deterrenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Very Low Frequency
Very low frequency or VLF is the ITU designation for radio frequencies (RF) in the range of 3–30 kHz, corresponding to wavelengths from 100 to 10 km, respectively. The band is also known as the myriameter band or myriameter wave as the wavelengths range from one to ten myriameters (an obsolete metric unit equal to 10 kilometers). Due to its limited bandwidth, audio (voice) transmission is highly impractical in this band, and therefore only low- data-rate coded signals are used. The VLF band is used for a few radio navigation services, government time radio stations (broadcasting time signals to set radio clocks) and secure military communication. Since VLF waves can penetrate at least into saltwater, they are used for military communication with submarines. Propagation characteristics Because of their long wavelengths, VLF radio waves can diffract around large obstacles and so are not blocked by mountain ranges, and they can propagate as ground wave ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Navy
The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 million tons in 2021. It has the world's largest aircraft carrier fleet, with List of aircraft carriers in service, eleven in service, one undergoing trials, two new carriers under construction, and six other carriers planned as of 2024. With 336,978 personnel on active duty and 101,583 in the Ready Reserve, the U.S. Navy is the third largest of the United States military service branches in terms of personnel. It has 299 deployable combat vessels and about 4,012 operational aircraft as of 18 July 2023. The U.S. Navy is one of six United States Armed Forces, armed forces of the United States and one of eight uniformed services of the United States. The United States Navy traces its origins to the Continental Navy, which was established during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William B
William is a masculine given name of Germanic origin. It became popular in England after the Norman conquest in 1066,All Things William"Meaning & Origin of the Name"/ref> and remained so throughout the Middle Ages and into the modern era. It is sometimes abbreviated "Wm." Shortened familiar versions in English include Will or Wil, Wills, Willy, Willie, Bill, Billie, and Billy. A common Irish form is Liam. Scottish diminutives include Wull, Willie or Wullie (as in Oor Wullie). Female forms include Willa, Willemina, Wilma and Wilhelmina. Etymology William is related to the German given name ''Wilhelm''. Both ultimately descend from Proto-Germanic ''*Wiljahelmaz'', with a direct cognate also in the Old Norse name ''Vilhjalmr'' and a West Germanic borrowing into Medieval Latin ''Willelmus''. The Proto-Germanic name is a compound of *''wiljô'' "will, wish, desire" and *''helmaz'' "helm, helmet".Hanks, Hardcastle and Hodges, ''Oxford Dictionary of First Names'', Oxfor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mural
A mural is any piece of Graphic arts, graphic artwork that is painted or applied directly to a wall, ceiling or other permanent substrate. Mural techniques include fresco, mosaic, graffiti and marouflage. Word mural in art The word ''mural'' is a Spanish adjective that is used to refer to what is attached to a wall. The term ''mural'' later became a noun. In art, the word began to be used at the beginning of the 20th century. In 1906, Dr. Atl issued a manifesto calling for the development of a monumental public art movement in Mexico; he named it in Spanish ''pintura mural'' (English: ''wall painting''). In ancient Roman times, a mural crown was given to the fighter who was first to scale the wall of a besieged town. "Mural" comes from the Latin ''muralis'', meaning "wall painting". This word is related to ''murus'', meaning "wall". History Antique art Murals of sorts date to Upper Paleolithic times such as the cave paintings in the Lubang Jeriji Saléh cave in Borneo (40 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
