|
Huayra Furnace
A ''huayra'' furnace or huayrachinas (meaning "place through which wind blows" in Imperial Quechua) is an Andean artisan furnace of Prehispanic design. Huayras were wind-driven and used to smelt copper. The furnance has the shape of a small turret with opening for wind to enter and drive the combustion. Molten metal collects at the bottom together with slag and for most purposes once separated from the slag it needs further processing to remove impurities. In Bolivia they were in use at least until the late 19th century and were known form colonial-era description of 1640. Museo Nacional de La Paz in Bolivia host a reconstruction of a huayra. The Atacama Desert's Tarapacá San Lorenzo de Tarapacá, also known simply as Tarapacá, is a town in the region of the same name in Chile. History The town has likely been inhabited since the 12th century, when it formed part of the Inca trail. When Spanish explorer Diego ... valley alone had 26 archaeological huayra sites identifie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imperial Quechua
Cuzco Quechua () is a dialect of Southern Quechua spoken in Cuzco and the Cuzco Region of Peru. It is the Quechua variety used by the Academia Mayor de la Lengua Quechua in Cuzco, which also prefers the Spanish-based five-vowel alphabet. On the other hand, the official alphabet used by the ministry of education has only three vowels. Phonology There is debate about whether Cuzco Quechua has five or three vowel phonemes: . While historically Proto-Quechua clearly had just three vowel phonemes /*a, *ɪ, *ʊ/, and although some other Quechua varieties have an increased number of vowels as a result of phonological vowel length emergence or of monophthongization, the current debate about the Cuzco variety seems to be not phonological in matter but just orthographic.Adelaar, Willem F. H. (2014)The Andean three-vowel system and its effect on the development of a modern orthography for the Aimaran and Quechuan languages ''Scripta, 6'', 33–46. Available at . Grammar Pronouns ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andean World
The Andean world (Spanish: ''mundo andino''), Andean cultural area (Spanish: ''área cultural andina'') or Andean America (Spanish: ''andinoamérica'') is a cultural area in existence since pre-Columbian times located in the central region of the Andes mountain range, where the most complex societies of South America developed, the Andean civilizations. Its approximate "area of influence" extends from the center-south of Chile and Mendoza Province, Mendoza in Argentina, to the south, up to the south of Colombia, as well as the societies inheriting them. To the north, it overlaps with what is traditionally known as the Intermediate Area. The concept of the Andean area was discussed in the mid-20th century. Bennet and Bird established an area of co-tradition in the Andean region primarily focused on the Central Andes and the existence of an "Intermediate" area located north of the Cajamarca basin in Peru. This approach, valid for Peruvian archaeology, does not encompass all the co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehispanic
In the history of the Americas, the pre-Columbian era, also known as the pre-contact era, or as the pre-Cabraline era specifically in Brazil, spans from the initial peopling of the Americas in the Upper Paleolithic to the onset of European colonization, which began with Christopher Columbus's voyage in 1492. This era encompasses the history of Indigenous cultures prior to significant European influence, which in some cases did not occur until decades or even centuries after Columbus's arrival. During the pre-Columbian era, many civilizations developed permanent settlements, cities, agricultural practices, civic and monumental architecture, major earthworks, and complex societal hierarchies. Some of these civilizations had declined by the time of the establishment of the first permanent European colonies, around the late 16th to early 17th centuries, and are known primarily through archaeological research of the Americas and oral histories. Other civilizations, contemporaneou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chilean National Museum Of Natural History
The Chilean National Museum of Natural History ( or ) is one of three national museums in Chile, along with the Museum of Fine Arts and the National History Museum. It is located in Quinta Normal Park, and was founded in 1830 by the French naturalist Claudio Gay. History The museum is one of the oldest natural history museums in South America. It was founded on September 14, 1830 by the French naturalist Claudio Gay, commissioned by the Chilean government. Its first director was another Frenchman Jean-François Dauxion-Lavaysse. Its original mandate was the biology and geography of Chile, with a concentration on crops and mineral resources. The existing museum building was constructed in 1875 as a palace, or pavilion, for the Chilean International Exhibition. In 1889 departments of botany, zoology, and mineralogy were established. The ''National Museum Bulletin (Boletín del Museo Nacional)'' was first published in 1908, and continues under the title ''Bulletin of the National ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slag
The general term slag may be a by-product or co-product of smelting (pyrometallurgical) ores and recycled metals depending on the type of material being produced. Slag is mainly a mixture of metal oxides and silicon dioxide. Broadly, it can be classified as ferrous (co-products of processing iron and steel), ferroalloy (a by-product of ferroalloy production) or non-ferrous/ base metals (by-products of recovering non-ferrous materials like copper, nickel, zinc and phosphorus). Within these general categories, slags can be further categorized by their precursor and processing conditions (e.g., blast furnace slags, air-cooled blast furnace slag, granulated blast furnace slag, basic oxygen furnace slag, and electric arc furnace slag). Slag generated from the EAF process can contain toxic metals, which can be hazardous to human and environmental health. Due to the large demand for ferrous, ferralloy, and non-ferrous materials, slag production has increased throughout the years des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemical Impurity
In chemistry and materials science, impurities are chemical substances inside a confined amount of liquid, gas, or solid. They differ from the chemical composition of the material or compound. Firstly, a pure chemical should appear in at least one chemical phase and can also be characterized by its phase diagram. Secondly, a pure chemical should prove to be homogeneous (i.e., a uniform substance that has the same composition throughout the material). The perfect pure chemical will pass all attempts to separate and purify it further. Thirdly, and here we focus on the common chemical definition, it should not contain any trace of any other kind of chemical species. In reality, there are no absolutely 100% pure chemical compounds, as there is always some small amount of contamination. The levels of impurities in a material are generally defined in relative terms. Standards have been established by various organizations that attempt to define the permitted levels of various impuriti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bolivia
Bolivia, officially the Plurinational State of Bolivia, is a landlocked country located in central South America. The country features diverse geography, including vast Amazonian plains, tropical lowlands, mountains, the Gran Chaco Province, warm valleys, high-altitude Andean plateaus, and snow-capped peaks, encompassing a wide range of climates and biomes across its regions and cities. It includes part of the Pantanal, the largest tropical wetland in the world, along its eastern border. It is bordered by Brazil to the Bolivia-Brazil border, north and east, Paraguay to the southeast, Argentina to the Argentina-Bolivia border, south, Chile to the Bolivia–Chile border, southwest, and Peru to the west. The seat of government is La Paz, which contains the executive, legislative, and electoral branches of government, while the constitutional capital is Sucre, the seat of the judiciary. The largest city and principal industrial center is Santa Cruz de la Sierra, located on the Geog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Museo Nacional De La Paz , station on line 1 of the Naples Metro
{{disambiguation ...
Museo may refer to: * ''Museum'' (2018 film), Mexican drama heist film *Museo station Museo is a Naples Metro station on Line 1. It opened on 5 April 2001 as the eastern terminus of the section of the line between Vanvitelli and Museo. On 27 March 2002 the line was extended to Dante. The station is located between Materdei and D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atacama Desert
The Atacama Desert () is a desert plateau located on the Pacific Ocean, Pacific coast of South America, in the north of Chile. Stretching over a strip of land west of the Andes Mountains, it covers an area of , which increases to if the barren lower slopes of the Andes are included. The Atacama Desert is the driest nonpolar desert in the world, and the second driest overall, behind some specific spots within the McMurdo Dry Valleys. It is the only Desert climate, true desert to receive less precipitation than polar deserts, and the largest fog desert in the world. The area has been used as an experimentation site for Mars expedition simulations due to its similarities to the Martian environment. The constant Inversion (meteorology), temperature inversion caused by the cool north-flowing Humboldt Current, Humboldt ocean current and the strong South Pacific High, Pacific anticyclone contribute to the extreme aridity of the desert. The most arid region of the Atacama Desert is s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tarapacá
San Lorenzo de Tarapacá, also known simply as Tarapacá, is a town in the region of the same name in Chile. History The town has likely been inhabited since the 12th century, when it formed part of the Inca trail. When Spanish explorer Diego de Almagro reached the settlement in 1536 it was already inhabited by locals. After being conquered by the Spanish, the town was part of the Viceroyalty of Peru, and then of the Peruvian state. Tarapacá saw itself the protagonist of the Battle of Tarapacá during the War of the Pacific. Despite the Peruvian victory, the troops located in the area relocated to nearby Arica in the direction of Tacna, allowing the Chilean Army to occupy the area, creating a disadvantage, and was afterwards given to Chile under the Treaty of Ancón. The war had a negative effect on the population, the Peruvian refugees who had formerly inhabited the town were sent by the Peruvian government to the Loreto region in order to populate the area. The areas in whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metallurgical Furnaces
Metallurgy is a domain of materials science and engineering that studies the physical and chemical behavior of metallic elements, their inter-metallic compounds, and their mixtures, which are known as alloys. Metallurgy encompasses both the science and the technology of metals, including the production of metals and the engineering of metal components used in products for both consumers and manufacturers. Metallurgy is distinct from the craft of metalworking. Metalworking relies on metallurgy in a similar manner to how medicine relies on medical science for technical advancement. A specialist practitioner of metallurgy is known as a metallurgist. The science of metallurgy is further subdivided into two broad categories: chemical metallurgy and physical metallurgy. Chemical metallurgy is chiefly concerned with the reduction and oxidation of metals, and the chemical performance of metals. Subjects of study in chemical metallurgy include mineral processing, the extraction of me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
