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Changgang County
Changgang County is a ''kun'', or county, in north-central Chagang province, North Korea. Originally part of Kanggye, it was made a separate county in 1949. It borders Hwapyong and Rangrim to the east, Kanggye and Sijung to the west, Songgan to the south, and Chasong to the north. The terrain of Changgang is rugged and mountainous, with the Kangnam Mountains in the northeast and the Chogyuryong Mountains in the southwest. The highest peak is Kumpasan (금파산, 1918 m) along the northern border. History Early history No artefacts from the paleolithic or neolithic periods have been found, but human existence during these periods is suspected based on discoveries from the neighboring Chasong County.Human existence during the Bronze age is attested from the pottery from the Mumun pottery period,Black pottery,stone axes Bronze daggers,and crescent stone knives found in Gongwidong and Pungryongdong( The dongs that existed when it was still part of greater Kanggye county. Modern d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Second-level Administrative Divisions Of North Korea
This is a list of all second-level administrative divisions of North Korea, including ''cities'', ''counties'', ''workers' districts'', ''districts'', and ''wards'', organized by province or directly governed city. Pyongyang Directly Governed City * 18 wards (guyok): Chung, Pyongchon, Potonggang, Moranbong, Sosong, Songyo, Tongdaewon, Taedonggang, Sadong, Taesong, Mangyongdae, Hyongjesan, Ryongsong, Samsok, Ryokpo, Rangnang, Sunan, Unjong * 2 county (kun): Kangdong, Kangnam Rason Special City * 1 ward (guyok): Rajin * 1 county (kun): Sŏnbong Chagang Province * 3 cities (si): Kanggye, Hŭich'ŏn, Manp'o * 15 counties (kun): Changgang, Chasŏng, Chŏnch'ŏn, Ch'osan, Chunggang, Hwap'yŏng, Kop'ung, Rangrim, Ryongrim, Sijung, Sŏnggan, Songwŏn, Tongsin, Usi, Wiwŏn North Hamgyŏng Province * 3 cities (si): Ch'ŏngjin, Hoeryŏng, Kimch'aek * 12 counties (kun): Myŏnggan, Hwadae, Kilju, Kyŏngsŏng, Musan, Myŏngch'ŏn, Onsŏng, Ŏran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyesan
Hyesan () is a city in the northern part of Ryanggang province of North Korea. It is a hub of river transportation as well as a product distribution centre. It is also the administrative centre of Ryanggang Province. As of 2008, the population of the city is 192,680. Area Around the 1940s, this city included the nearby Paektu Mountains. However, due to several changes, the area of this city was reduced, and now it only includes the nearby Yalu River. Due to the reunification matter with South Korea, this city is claimed by South Korea, following the boundaries of 1940s, not the one edited by North Korea. Therefore, according to South Korea, Hyesan still includes the nearby Paektu Mountains. South Korea has a conflict with the People's Republic of China because of the Baekdu Mountains. The mountain is actually divided in two: the south parts are ruled by North Korea while the north parts are ruled by the PRC. However, South Korea still claims the northern parts. It is not offi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kanggye Line
The Kanggye Line is an electrified narrow-gauge line of the Korean State Railway in North Korea running from Kanggye on the Manp'o Line to Rangrim,Kokubu, Hayato, 将軍様の鉄道 (Shōgun-sama no Tetsudō), primarily hauling forest products. An interesting feature of the line is a significant switchback west of Rangrim. History The Kanggye Line was built by the Korean State Railway in the late 1940s to aid in the construction of a hydroelectric dam on the Changjin River in the Rangrim mountains; construction of the dam had been started by the Japanese in 1937. Following an order issued in September 1999 by Kim Jong-il, electrification of the line at 1500 V DC was completed on 5 October 2000. Route A yellow background in the "Distance" box indicates that section of the line is not electrified; a pink background indicates that section is narrow gauge A narrow-gauge railway (narrow-gauge railroad in the US) is a railway with a track gauge narrower than standard . Most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lead
Lead is a chemical element with the symbol Pb (from the Latin ) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low melting point. When freshly cut, lead is a shiny gray with a hint of blue. It tarnishes to a dull gray color when exposed to air. Lead has the highest atomic number of any stable element and three of its isotopes are endpoints of major nuclear decay chains of heavier elements. Lead is toxic, even in small amounts, especially to children. Lead is a relatively unreactive post-transition metal. Its weak metallic character is illustrated by its amphoteric nature; lead and lead oxides react with acids and bases, and it tends to form covalent bonds. Compounds of lead are usually found in the +2 oxidation state rather than the +4 state common with lighter members of the carbon group. Exceptions are mostly limited to organolead compounds. Like the lighter members of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fluorite
Fluorite (also called fluorspar) is the mineral form of calcium fluoride, CaF2. It belongs to the halide minerals. It crystallizes in isometric cubic habit, although octahedral and more complex isometric forms are not uncommon. The Mohs scale of mineral hardness, based on scratch hardness comparison, defines value 4 as fluorite. Pure fluorite is colourless and transparent, both in visible and ultraviolet light, but impurities usually make it a colorful mineral and the stone has ornamental and lapidary uses. Industrially, fluorite is used as a flux for smelting, and in the production of certain glasses and enamels. The purest grades of fluorite are a source of fluoride for hydrofluoric acid manufacture, which is the intermediate source of most fluorine-containing fine chemicals. Optically clear transparent fluorite lenses have low dispersion, so lenses made from it exhibit less chromatic aberration, making them valuable in microscopes and telescopes. Fluorite optics are also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graphite
Graphite () is a crystalline form of the element carbon. It consists of stacked layers of graphene. Graphite occurs naturally and is the most stable form of carbon under standard conditions. Synthetic and natural graphite are consumed on large scale (300 kton/year, in 1989) for uses in pencils, lubricants, and electrodes. Under high pressures and temperatures it converts to diamond. It is a weak conductor of heat and electricity. Types and varieties Natural graphite The principal types of natural graphite, each occurring in different types of ore deposits, are * Crystalline small flakes of graphite (or flake graphite) occurs as isolated, flat, plate-like particles with hexagonal edges if unbroken. When broken the edges can be irregular or angular; * Amorphous graphite: very fine flake graphite is sometimes called amorphous; * Lump graphite (or vein graphite) occurs in fissure veins or fractures and appears as massive platy intergrowths of fibrous or acicular crystalline ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zinc
Zinc is a chemical element with the symbol Zn and atomic number 30. Zinc is a slightly brittle metal at room temperature and has a shiny-greyish appearance when oxidation is removed. It is the first element in group 12 (IIB) of the periodic table. In some respects, zinc is chemically similar to magnesium: both elements exhibit only one normal oxidation state (+2), and the Zn2+ and Mg2+ ions are of similar size.The elements are from different metal groups. See periodic table. Zinc is the 24th most abundant element in Earth's crust and has five stable isotopes. The most common zinc ore is sphalerite (zinc blende), a zinc sulfide mineral. The largest workable lodes are in Australia, Asia, and the United States. Zinc is refined by froth flotation of the ore, roasting, and final extraction using electricity ( electrowinning). Zinc is an essential trace element for humans, animals, plants and for microorganisms and is necessary for prenatal and postnatal development. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroelectricity
Hydroelectricity, or hydroelectric power, is Electricity generation, electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other Renewable energy, renewable sources combined and also more than nuclear power. Hydropower can provide large amounts of Low-carbon power, low-carbon electricity on demand, making it a key element for creating secure and clean electricity supply systems. A hydroelectric power station that has a dam and reservoir is a flexible source, since the amount of electricity produced can be increased or decreased in seconds or minutes in response to varying electricity demand. Once a hydroelectric complex is constructed, it produces no direct waste, and almost always emits considerably less greenhouse gas than fossil fuel-powered energy plants. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kim Il-sung
Kim Il-sung (; , ; born Kim Song-ju, ; 15 April 1912 – 8 July 1994) was a North Korean politician and the founder of North Korea, which he ruled from the country's establishment in 1948 until his death in 1994. He held the posts of Premier from 1948 to 1972 and President from 1972 to 1994. He was the leader of the Workers' Party of Korea (WPK) from 1949 to 1994 (titled as Chairman from 1949 to 1966 and as General Secretary after 1966). Coming to power after the end of Japanese rule in 1945, he authorized the invasion of South Korea in 1950, triggering an intervention in defense of South Korea by the United Nations led by the United States. Following the military stalemate in the Korean War, a ceasefire was signed on 27 July 1953. He was the third longest-serving non-royal head of state/government in the 20th century, in office for more than 45 years. Under his leadership, North Korea was established as a socialist state with a centrally planned economy. It had c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Songgan County
Songgan County is a ''kun'', or county, in central Chagang province, North Korea. It borders Rangrim to the east, Wiwon to the west, Kanggye to the north and Chonchon and Ryongrim to the south. It was formed in 1952 from parts of Chonchon and Changgang, as part of a general reorganization of local government. Songgan nestles among the Rangrim mountains in north central North Korea, its terrain sloping downward toward the Changja River in the west. The highest point is Maengbusan in the Rangrim range, which stands 2,214 m above sea level. 92% of the county's area is taken up by forestland. The Manpo Line railroad follows the river through western Songgan. The county is also connected to Kanggye and Pyongyang by road. The chief local industries are logging and agriculture. Grains including maize, wheat, and millet are raised in Songgan, as are cattle and silkworms. Administrative divisions Songgan-gun is divided into 1 '' ŭp'' (town), 5 ' (workers' districts) and 9 '' ri'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Encyclopedia Of Korean Culture
The ''Encyclopedia of Korean Culture'' is a Korean language encyclopedia published by the Academy of Korean Studies and DongBang Media Co. The articles in the encyclopedia are aimed at readers who want to learn about Korean culture and history, and were written by over 3,800 scholars and expert contributors — mainly associated with the Academy of Korean Studies. ''Munhwa Ilbo'' called it the most extensive encyclopedia of Korean studies. In 2001, the digital edition EncyKorea was published on CD-ROM and DVD. See also *'' Doosan Encyclopedia'' * List of digital library projects *Lists of encyclopedias *List of encyclopedias by branch of knowledge *List of encyclopedias by language *List of historical encyclopedias This is a list of encyclopedias, arranged by time period. For other arrangements, see Lists of encyclopedias. Encyclopedias before 1700 * ''Nine Books of Disciplines'' by Marcus Terentius Varro (116 BC-27 BC) * ''Naturalis Historia'' by Pliny the ... * List of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
