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General Bernardo O'Higgins Station
Base General Bernardo O'Higgins Riquelme, also Base Libertador General Bernardo O'Higgins Riquelme, or shortly Bernardo O'Higgins, named after Bernardo O'Higgins, is a permanently staffed Chilean research station in Antarctica and the capital of Antártica Commune. It lies at an elevation of 13 m, about 30 km south-west of Prime Head, the northernmost point of the Antarctic Peninsula, at Cape Legoupil. History The base was established on 18 February 1948 by the Chilean Antarctic Expedition, and is one of the Antarctic bases with the longest times of continuous operation. The winter population is 24, and the peak population in the Antarctic summer is usually 52, although up to 60 persons can be accommodated. The base is operated by the Chilean Army. It is also known as ''Puerto Covadonga'' after the port on which it is located. The German Antarctic Receiving Station (GARS) was established at O'Higgins in 1991 by the DLR. It is a satellite ground station sited in Antarct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Research Stations In Antarctica
Multiple governments have set up permanent research stations in Antarctica and these bases are widely distributed. Unlike the drifting ice stations set up in the Arctic, the current research stations of the Antarctic are constructed either on rocks or on ice that are (for practical purposes) fixed in place. Many of these stations are demographics of Antarctica, staffed throughout the year. Of the 56 signatories to the Antarctic Treaty System, Antarctic Treaty, a total of 55 countries (as of 2023) operate seasonal (summer) and year-round research stations on the continent. The number of people performing and supporting scientific research on the continent and nearby islands varies from approximately 4,800 during the summer to around 1,200 during the winter (June). In addition to these permanent stations, approximately Antarctic field camps, 30 field camps are established each summer to support specific projects. History First bases During the Heroic Age of Antarctic Explo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port
A port is a maritime facility comprising one or more wharves or loading areas, where ships load and discharge cargo and passengers. Although usually situated on a sea coast or estuary, ports can also be found far inland, such as Hamburg, Manchester and Duluth; these access the sea via rivers or canals. Because of their roles as ports of entry for immigrants as well as soldiers in wartime, many port cities have experienced dramatic multi-ethnic and multicultural changes throughout their histories. Ports are extremely important to the global economy; 70% of global merchandise trade by value passes through a port. For this reason, ports are also often densely populated settlements that provide the labor for processing and handling goods and related services for the ports. Today by far the greatest growth in port development is in Asia, the continent with some of the world's largest and busiest ports, such as Singapore and the Chinese ports of Shanghai and Ningbo-Zhoushan. As ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Historic Sites And Monuments In Antarctica
A Historic Site or Monument (HSM) is a protected location of historic interest on the continent of Antarctica, or on its adjacent islands. The list of historic sites was first drawn up in 1972,Recommendation ATCM VII-9 (Wellington, 1972) and has since expanded to cover 95 sites, with the most recent listed in 2021. Five sites have been removed from the list for various reasons. Historic Sites and Monuments are protected under the , as one of three classes of Antarctic Pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commemorative Plaque
A commemorative plaque, or simply plaque, or in other places referred to as a historical marker, historic marker, or historic plaque, is a plate of metal, ceramic, stone, wood, or other material, bearing text or an image in relief, or both, to commemorate one or more persons, an event, a former use of the place, or some other thing. Most such plaques are attached to a wall, stone, or other vertical surface. Many modern plaques and markers are used to associate the location where the plaque or marker is installed with the person, event, or item commemorated as a place worthy of visit. A monumental plaque or tablet commemorating a deceased person or persons, can be a simple form of church monument. Most modern plaques affixed in this way are commemorative of something, but not all. There are also purely religious plaques, and some signify ownership or affiliation of some sort. A plaquette is a small plaque, but in English, unlike many European languages, the term is not t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bust (sculpture)
A bust is a Sculpture, sculpted or cast representation of the upper part of the human figure, human body, depicting a person, person's Human head, head and neck, and a variable portion of the chest and shoulders. The piece is normally supported by a plinth. The bust is generally a portrait intended to record the appearance of an individual, but may sometimes represent a type. They may be of any List of art media, medium used for sculpture, such as marble, bronze, terracotta, plaster, wax or wood. As a format that allows the most distinctive characteristics of an individual to be depicted with much less work, and therefore expense, and occupying far less space than a full-length statue, the bust has been since ancient times a popular style of life-size portrait sculpture. A sculpture that only includes the head, perhaps with the neck, is more strictly called a "head", but this distinction is not always observed. Display often involves an integral or separate display stand. The A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gabriel González Videla
Gabriel Enrique González Videla (; 22 November 1898 – 22 August 1980) was a Chilean politician and lawyer who served as the 24th president of Chile from 1946 to 1952. He had previously been a member of the Chamber of Deputies from 1930 to 1941 and senator for Tarapacá and Antofagasta from 1945 to 1946. A long-time member and leader in the Radical Party, he left the party in 1971 over its support for socialist president Salvador Allende. From 1973 until his death in 1980 he became an active participant in the government of Augusto Pinochet, acting as vice president of the Council of State from 1976 onwards. As vice president of the council, he helped draft the current Chilean constitution of 1980. Early life González was born in the coastal city of La Serena on 22 November 1898, to parents Gabriel González Castillo and Teresa Videla Zepeda. He was the oldest of eighteen children. After graduating from the ''Liceo de La Serena'', González went on to study law ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COVID-19 Pandemic In Chile
The worldwide pandemic of coronavirus disease 2019 () caused by severe acute respiratory syndrome coronavirus 2 () severely affected Chile. The virus was confirmed to have reached Chile on 3 March 2020. Initial cases had been imported from Southeast Asia and Europe, and expanded into a large number of untraceable infections, placing the country within phase 4 of the pandemic as defined by the World Health Organization, with over 1,000 confirmed cases by 25 March 2020. The cases are concentrated in the Santiago metropolitan area, with outbreaks in other regions in the country. No national lockdown was established in Chile, unlike in neighboring Argentina and Peru, although a night curfew was implemented throughout the country. Quarantines were established locally in different cities and neighborhoods. However, in May 2020 the whole city of Santiago was put under mandatory quarantine due to an increase of cases, and similar situations were extended to most of the largest cities ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Infrastructure
Infrastructure is the set of facilities and systems that serve a country, city, or other area, and encompasses the services and facilities necessary for its economy, households and firms to function. Infrastructure is composed of public and private physical structures such as roads, railways, bridges, airports, public transit systems, tunnels, water supply, sewers, electrical grids, and telecommunications (including Internet connectivity and broadband access). In general, infrastructure has been defined as "the physical components of interrelated systems providing commodities and services essential to enable, sustain, or enhance societal living conditions" and maintain the surrounding environment. Especially in light of the massive societal transformations needed to mitigate and adapt to climate change, contemporary infrastructure conversations frequently focus on sustainable development and green infrastructure. Acknowledging this importance, the international co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology
Geology (). is a branch of natural science concerned with the Earth and other astronomical objects, the rocks of which they are composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology. It is integrated with Earth system science and planetary science. Geology describes the structure of the Earth on and beneath its surface and the processes that have shaped that structure. Geologists study the mineralogical composition of rocks in order to get insight into their history of formation. Geology determines the relative ages of rocks found at a given location; geochemistry (a branch of geology) determines their absolute ages. By combining various petrological, crystallographic, and paleontological tools, geologists are able to chronicle the geological history of the Earth as a whole. One aspect is to demonstrate the age of the Earth. Geology provides evidence for plate tectonics, the ev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synthetic Aperture Radar
Synthetic-aperture radar (SAR) is a form of radar that is used to create two-dimensional images or 3D reconstruction, three-dimensional reconstructions of objects, such as landscapes. SAR uses the motion of the radar antenna over a target region to provide finer spatial resolution than conventional stationary beam-scanning radars. SAR is typically mounted on a moving platform, such as an aircraft or spacecraft, and has its origins in an advanced form of side looking airborne radar (SLAR). The distance the SAR device travels over a target during the period when the target scene is illuminated creates the large ''synthetic'' antenna aperture (the ''size'' of the antenna). Typically, the larger the aperture, the higher the image resolution will be, regardless of whether the aperture is physical (a large antenna) or synthetic (a moving antenna) – this allows SAR to create high-resolution images with comparatively small physical antennas. For a fixed antenna size and orientation, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bandwidth (computing)
In computing, bandwidth is the maximum rate of data transfer across a given path. Bandwidth may be characterized as network bandwidth, data bandwidth, or digital bandwidth. This definition of ''bandwidth'' is in contrast to the field of signal processing, wireless communications, modem data transmission, digital communications, and electronics, in which ''bandwidth'' is used to refer to the signal bandwidth measured in hertz, meaning the frequency range between lowest and highest attainable frequency while meeting a well-defined impairment level in signal power. The actual bit rate that can be achieved depends not only on the signal bandwidth but also on the noise on the channel. Network capacity The term ''bandwidth'' sometimes defines the net bit rate ''peak bit rate'', ''information rate'', or physical layer ''useful bit rate'', channel capacity, or the maximum throughput of a logical or physical communication path in a digital communication system. For example, bandwi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
