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Songyuan, Guangdong
Songyuan () is a town in the Meixian District of Meizhou, northeastern Guangdong Province, China, along the border with Fujian Province to the northeast. It has a population of about 42,044 as of 2017 residing in an area of . Etymology Songyuan is located in the upper reaches of the Songyuan River, which gives the town its name. History In ancient times, Songyuan was densely forested with pine trees. The Hakka people of the Song Dynasty entered the region of present-day Guangdong through the town. Chinese Civil War The Communist Party established a branch in Songyuan in Autumn of 1926. In 1928, communist forces established a district committee in the area. On October 19, 1929, under the command of Zhu De, more than 6,000 soldiers from the Fourth Red Army entered the town. During the Anti-Japanese War, communist forces operated guerrilla bases in the area, and recruited a number of locals to fight in the war. Geography Songyuan is a town in the northeast of Meixian Di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Town (China)
When referring to political divisions of China, town is the standard English translation of the Chinese (traditional: ; ). The Constitution of the People's Republic of China classifies towns as third-level administrative units, along with for example townships (). A township is typically smaller in population and more remote than a town. Similarly to a higher-level administrative units, the borders of a town would typically include an urban core (a small town with the population on the order of 10,000 people), as well as rural area with some villages (, or ). Map representation A typical provincial map would merely show a town as a circle centered at its urban area and labeled with its name, while a more detailed one (e.g., a map of a single county-level division) would also show the borders dividing the county A county is a geographic region of a country used for administrative or other purposes Chambers Dictionary, L. Brookes (ed.), 2005, Chambers Harrap Publis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jiaoling County
Jiaoling County ( postal: Chiuling; ) is a county in the northeast of Guangdong Province, China, bordering Fujian province to the north. Under the jurisdiction of Meizhou City, it was previously known as the Zhenping County ( postal: Chenping). Ethno-linguistic make-up Jiaoling is noted for its large Hakka population. Notable people * Xie Jinyuan (謝晉元) was a Chinese nationalist military officer during second Sino-Japanese war. * Shing-Tung Yau (丘成桐), a Chinese American mathematician and the William Caspar graustein professor of mathematics at Harvard university. * Professor Xu Sheng Xin (徐聖心教授 ), a professor of Chinese language at the National Taiwan University National Taiwan University (NTU; ) is a public research university in Taipei, Taiwan. The university was founded in 1928 during Taiwan under Japanese rule, Japanese rule as the seventh of the Imperial Universities. It was named Taihoku Imper ... ( source: http://www.cl.ntu.edu.tw/web/team/t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rice
Rice is the seed of the grass species '' Oryza sativa'' (Asian rice) or less commonly '' Oryza glaberrima'' (African rice). The name wild rice is usually used for species of the genera '' Zizania'' and ''Porteresia'', both wild and domesticated, although the term may also be used for primitive or uncultivated varieties of '' Oryza''. As a cereal grain, domesticated rice is the most widely consumed staple food for over half of the world's human population,Abstract, "Rice feeds more than half the world's population." especially in Asia and Africa. It is the agricultural commodity with the third-highest worldwide production, after sugarcane and maize. Since sizable portions of sugarcane and maize crops are used for purposes other than human consumption, rice is the most important food crop with regard to human nutrition and caloric intake, providing more than one-fifth of the calories consumed worldwide by humans. There are many varieties of rice and culinary preferences t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Villages Of China
Villages (), formally village-level divisions () in China, serve as a fundamental organizational unit for its rural population (census, mail system). Basic local divisions like neighborhoods and communities are not informal, but have defined boundaries and designated heads (one per area). In 2000, China's densely populated villages (>100 persons/square km) had a population greater than 500 million and covered more than 2 million square kilometers, or more than 20% of China's total area. By 2020, all incorporated villages (with proper conditions making it possible) had road access, the last village to be connected being a remote village in Sichuan province's Butuo County. Types of villages Urban * Residential community () ** Residential committees () *** Residential groups ( ;Note: Urban village () one that spontaneously and naturally exists within urban area, which is not an administrative division. Rural * Administrative village or Village () * Gacha () only for Inner Mon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Residential Community
A residential community is a community, usually a small town or city, that is composed mostly of residents, as opposed to commercial businesses and/or industrial facilities, all three of which are considered to be the three main types of occupants of the typical community. Residential communities are typically communities that help support more commercial or industrial communities with consumers and workers. That phenomenon is probably because some people prefer not to live in an urban or industrial area, but rather a suburban or rural setting. For that reason, they are also called dormitory towns, bedroom communities, or commuter towns. An example of a residential community would include a small town or city outside a larger city or a large town located near a smaller but more commercially- or industrially-centered town or city, for instance Taitou in Gaocun, Wuqing, Tianjin, China. China In the People's Republic of China, a community (), also called residentia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limestone
Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as the accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life. About 20% to 25% of sedimentary rock is carbonate rock, and most of this is limestone. The remaining carbonate rock is mostly dolomite, a closely related rock, which contains a high percentage of the mineral dolomite, . ''Magnesian limestone'' is an obsolete and poorly-defined term used variously for dolomite, for lime ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Porcelain
Porcelain () is a ceramic material made by heating substances, generally including materials such as kaolinite, in a kiln to temperatures between . The strength and translucence of porcelain, relative to other types of pottery, arises mainly from vitrification and formation of the mineral mullite within the body at these high temperatures. Though definitions vary, porcelain can be divided into three main categories: hard-paste, soft-paste, and bone china. The category that an object belongs to depends on the composition of the paste used to make the body of the porcelain object and the firing conditions. Porcelain slowly evolved in China and was finally achieved (depending on the definition used) at some point about 2,000 to 1,200 years ago; it slowly spread to other East Asian countries, then to Europe, and eventually to the rest of the world. Its manufacturing process is more demanding than that for earthenware and stoneware, the two other main types of pottery, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold
Gold is a chemical element with the symbol Au (from la, aurum) and atomic number 79. This makes it one of the higher atomic number elements that occur naturally. It is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal in a pure form. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive chemical elements and is solid under standard conditions. Gold often occurs in free elemental (native state), as nuggets or grains, in rocks, veins, and alluvial deposits. It occurs in a solid solution series with the native element silver (as electrum), naturally alloyed with other metals like copper and palladium, and mineral inclusions such as within pyrite. Less commonly, it occurs in minerals as gold compounds, often with tellurium ( gold tellurides). Gold is resistant to most acids, though it does dissolve in aqua regia (a mixture of nitric acid and hydrochloric acid), forming a soluble tetrachloroau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coal
Coal is a combustible black or brownish-black sedimentary rock, formed as stratum, rock strata called coal seams. Coal is mostly carbon with variable amounts of other Chemical element, elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of years. Vast deposits of coal originate in former wetlands called coal forests that covered much of the Earth's tropical land areas during the late Carboniferous (Pennsylvanian (geology), Pennsylvanian) and Permian times. Many significant coal deposits are younger than this and originate from the Mesozoic and Cenozoic eras. Coal is used primarily as a fuel. While coal has been known and used for thousands of years, its usage was limited until the Industrial Revolution. With the invention of the steam engine, coal consumption increased. In 2020, coal supplied about a quarter of the world's primary energ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uranium
Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weakly radioactive because all isotopes of uranium are unstable; the half-lives of its naturally occurring isotopes range between 159,200 years and 4.5 billion years. The most common isotopes in natural uranium are uranium-238 (which has 146 neutrons and accounts for over 99% of uranium on Earth) and uranium-235 (which has 143 neutrons). Uranium has the highest atomic weight of the primordially occurring elements. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. It occurs naturally in low concentrations of a few parts per million in soil, rock and water, and is commercially extracted from uranium-bearing minerals such as uraninite. In nature, uranium is found as uranium-238 (99.2739 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iron
Iron () is a chemical element with symbol Fe (from la, ferrum) and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, right in front of oxygen (32.1% and 30.1%, respectively), forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust. In its metallic state, iron is rare in the Earth's crust, limited mainly to deposition by meteorites. Iron ores, by contrast, are among the most abundant in the Earth's crust, although extracting usable metal from them requires kilns or furnaces capable of reaching or higher, about higher than that required to smelt copper. Humans started to master that process in Eurasia during the 2nd millennium BCE and the use of iron tools and weapons began to displace copper alloys, in some regions, only around 1200 BCE. That event is considered the transition from the Bronze Age to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manganese
Manganese is a chemical element with the symbol Mn and atomic number 25. It is a hard, brittle, silvery metal, often found in minerals in combination with iron. Manganese is a transition metal with a multifaceted array of industrial alloy uses, particularly in stainless steels. It improves strength, workability, and resistance to wear. Manganese oxide is used as an oxidising agent; as a rubber additive; and in glass making, fertilisers, and ceramics. Manganese sulfate can be used as a fungicide. Manganese is also an essential human dietary element, important in macronutrient metabolism, bone formation, and free radical defense systems. It is a critical component in dozens of proteins and enzymes. It is found mostly in the bones, but also the liver, kidneys, and brain. In the human brain, the manganese is bound to manganese metalloproteins, most notably glutamine synthetase in astrocytes. Manganese was first isolated in 1774. It is familiar in the laboratory in the form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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