| Agriculture Agriculture refers to the production of food and goods through farming and forestry. Agriculture was the key development that led to the rise of civilization, with the husbandry of domesticated animals and plants (i.e. crops) creating food surpluses that enabled the development of more densely populated and stratified societies. The study of agriculture is known as agricultural science (the related practice of gardening is studied in horticulture). Agriculture
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| Ames, Iowa Ames is a city located in the central part of the U.S. state of Iowa in Story County, and approximately north of Des Moines. It is the principal city of the Ames, Iowa Metropolitan Statistical Area which encompasses all of Story County, and which, when combined with the Boone, Iowa Micropolitan Statistical Area, comprises the larger Ames-Boone Combined Statistical Area. Ames,_Iowa
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| Atanasoff–Berry Computer The Atanasoff–Berry Computer (ABC) was the world's first electronic digital computer, but it was not programmable. Conceived in 1937, the machine was designed only to solve systems of linear equations. It was successfully tested in 1942. However, its intermediate result storage mechanism, a paper card writer/reader, was unreliable, and when Atanasoff left Iowa State University for World War II assignments, work on the machine was discontinued. Atanasoff–Berry_Computer
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| Ammonia Ammonia is a compound of nitrogen and hydrogen with the formula NH3. It is normally encountered as a gas with a characteristic pungent odor. Ammonia contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to foodstuffs and fertilizers. Ammonia
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| Aerodynamics Aerodynamics is a branch of dynamics concerned with studying the motion of air, particularly when it interacts with a moving object. Aerodynamics is a subfield of fluid dynamics and gas dynamics, with much theory shared between them. Aerodynamics is often used synonymously with gas dynamics, with the difference being that gas dynamics applies to all gases. Understanding the motion of air (often called a flow field) around an object enables the calculation of forces and m Aerodynamics
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| Big bang Talk:Big_bang
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| Black people The term black people usually refers to a racial group of humans with a dark brown skin color, but it has also been used to categorise a number of diverse populations into one common group. Some definitions of the term include only people of relatively recent Sub Saharan African descent (see African diaspora). Black_people
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| Computer/Archive 3 Talk:Computer/Archive_3
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| Transport in the Democratic Republic of the Congo Ground transport in the Democratic Republic of Congo (DRC) has always been difficult. The terrain and climate of the Congo Basin present serious barriers to road and rail construction, and the distances are enormous across this vast country. Furthermore, chronic economic mismanagement and internal conflict has led to serious under-investment over many years.On the other hand, the DRC has thousands of kilometres of navigable waterways, and traditionally water transport has been the dominant means of moving around approximately two-thirds of the country. Transport_in_the_Democratic_Republic_of_the_Congo
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| Diesel engine A diesel engine is an internal combustion engine that operates using the diesel cycle (named after Dr. Rudolph Diesel). Diesel engines have the highest thermal efficiency of any internal or external combustion engine, because of their compression ratio.The defining feature of the diesel engine is the use of the heat of compression to initiate ignition to burn the fuel, which is injected into the combustion chamber during the final stage of compression. Diesel_engine
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| Design Design is used both as a noun and a verb. The term is often tied to the various applied arts and engineering (See design disciplines below). As a verb, "to design" refers to the process of originating and developing a plan for a product, structure, system, or component with intention. As a noun, "a design" is used for either the final (solution) plan (e.g. proposal, drawing, model, description) or the r Design
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| George Washington Carver George Washington Carver (January 1864 George_Washington_Carver
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| Iowa Iowa
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| Indo-European languages The Indo-European languages are a family of several hundred related languages and dialects, including most major languages of Europe, the Iranian plateau, and the Indian subcontinent. "Indo" refers to the Indian subcontinent, since in the pre-colonial era the language group extended geographically from Europe in the west to India in the east. Indo-European_languages
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| Iowa State University The Iowa State University of Science and Technology, more commonly known as Iowa State University (ISU), is a public land-grant and space-grant research university located in Ames, Iowa, United States. Iowa State has produced a number of astronauts, scientists, Nobel laureates, Pulitzer Prize winners, and a variety of other notable individuals in their respective fields. Iowa_State_University
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| Medieval music The term medieval music encompasses European music written during the Middle Ages. This era begins with the fall of the Roman Empire and ends in approximately the middle of the fifteenth century. Establishing the end of the medieval era and the beginning of the Renaissance is admittedly arbitrary; 1400 is used here. Medieval_music
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| Marsupial Marsupial
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| Artificial neural network An artificial neural network (ANN), usually called "neural network" (NN), is a mathematical model or computational model that tries to simulate the structure and/or functional aspects of biological neural networks. It consists of an interconnected group of artificial neurons and processes information using a connectionist approach to computation. Artificial_neural_network
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| Non-disclosure agreement non-disclosure agreement (NDA), also known as a confidentiality agreement, confidential disclosure agreement (CDA), proprietary information agreement (PIA), or secrecy agreement, is a legal contract between at least two parties that outlines confidential materials or knowledge the parties wish to share with one another for certain purposes, but wish to restrict access to. Non-disclosure_agreement
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| Potato Potato
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| Platypus The Platypus (Ornithorhynchus anatinus) is a semi-aquatic mammal endemic to eastern Australia, including Tasmania. Together with the four species of echidna, it is one of the five extant species of monotremes, the only mammals that lay eggs instead of giving birth to live young. It is the sole living representative of its family (Ornithorhynchidae) and genus (Ornithorhynchus), though a number of related species have been found in the fossil record. Platypus
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| Quasicrystal Quasicrystals are structural forms that are both ordered and nonperiodic. They form patterns that fill all the space but lack translational symmetry. Classical theory of crystals allows only 2, 3, 4, and 6-fold rotational symmetries, but quasicrystals display symmetry of other orders (folds). Quasicrystal
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| Rhetoric Rhetoric is one of the art of using language as a means to persuade. Along with grammar and logic or dialectic, rhetoric is one of the three ancient arts of discourse. From ancient Greece to the late 19th Century, it was a central part of Western education, filling the need to train public speakers and writers to move audiences to action with arguments. Rhetoric
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| Renaissance music Renaissance music is European music written during the Renaissance. Defining the beginning of the musical era is difficult, given the gradually adopted "Renaissance" characteristics Renaissance_music
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| Resurrection of Jesus Christian beliefs, the ‘‘resurrection of Jesus’‘ is a core biblical event—upon which much of Christian doctrine, ritual and theology critically depend. According to the New Testament, after Jesus was executed by Roman crucifixion and buried, he was then resurrected on the third day (, , . Resurrection_of_Jesus
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| Sackbut Sackbut (var. Sacbutt; Sackbutt; Sagbutt) refers to a trombone from the Renaissance and Baroque Eras. 'Sackbut' is often used in recent times to differentiate a historic trombone from a modern one. Increasing interest in historically informed performance in recent years has revived interest in this style of trombone and its repertoire. Sackbut
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| Ultrasound Ultrasound is cyclic sound pressure with a frequency greater than the upper limit of human hearing. Although this limit varies from person to person, it is approximately 20 kilohertz (20,000 hertz) in healthy, young adults and thus, 20 kHz serves as a useful lower limit in describing ultrasound. Ultrasound
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| Vegetarianism Vegetarianism is the practice of following a diet that excludes meat (including game and slaughter by-products; fish, shellfish and other sea animals; and poultry). eggs and/or some products produced from animal labour such as dairy products and honey.The vegan diet is a form of vegetarianism which excludes all animal products from the diet, such as meat, poultry, fish, dairy products, eggs, and honey. Vegetarianism
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| Venom Venom is any of a variety of toxins used by certain types of animals. Generally, venom is injected by such means as a bite or a sting. Venom
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| Wal-Mart Wal-Mart
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| Waterloo, Iowa Waterloo is a city in and the county seat of Black Hawk County, Iowa, United States. As of the 2000 census, the city had a total population of 68,747. It belongs to the Waterloo-Cedar Falls Metropolitan Statistical Area, and is the larger of the two cities, by population. Waterloo,_Iowa
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| 1960s The 1960s term also refers to an era more often called The Sixties, denoting the complex of inter-related cultural and political trends in the west, particularly United States, Canada, Argentina, Brazil, Spain, France, United Kingdom, Italy, Australia and West Germany. Social and political upheaval was not limited to these countries, but included such nations as Japan, Mexico, Yugoslavia and others. 1960s
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| Josiah Willard Gibbs Josiah Willard Gibbs (February 11, 1839 physicist, chemist, and mathematician. One of the greatest American scientists of all time, he devised much of the theoretical foundation for chemical thermodynamics as well as physical chemistry. As a mathematician, he invented vector analysis (independently of Oliver Heaviside). Josiah_Willard_Gibbs
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| Fertilizer Fertilizers are chemical compounds applied to promote plant and fruit growth. Fertilizers are usually applied either through the soil (for uptake by plant roots) or, by foliar feeding (for uptake through leaves).Fertilizers can be placed into the categories of organic fertilizers (composed of decayed plant/animal matter), or inorganic fertilizers (composed of simple chemicals and minerals). Fertilizer
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| ArXiv The arXiv (pronounced "archive", as if the "X" were the Greek letter Chi, χ) is an archive for electronic preprints of scientific papers in the fields of mathematics, physics, computer science, quantitative biology and statistics which can be accessed via the Internet. In many fields of mathematics and physics, almost all scientific papers are placed on the arXiv. , arXiv.org passed the half-million article milestone, with roughly five thousand new e-prints added every month. ArXiv
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| Queuing delay telecommunication and computer engineering, the queuing delay (or queueing delay) is the time a job waits in a queue until it can be executed. It is a key component of network delay.This term is most often used in reference to routers. When packets arrive at a router, they have to be processed and transmitted. Queuing_delay
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| Transmission line transmission line is the material medium or structure that forms all or part of a path from one place to another for directing the transmission of energy, such as electromagnetic waves or acoustic waves, as well as electric power transmission. wires, coaxial cables, dielectric slabs, striplines, optical fibers, electric power lines, and waveguides. Transmission_line
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| Tillage Tillage is the agricultural preparation of the soil by ploughing, ripping, or turning it. Tillage can also mean the land that is tilled. There are two types of tillage Tillage
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| Catfish Catfish (order Siluriformes) are a very diverse group of bony fish. Named for their prominent barbels, which resemble a cat's whiskers (though not prominent in all members of this order), catfish range in size and behavior from the heaviest, the Mekong giant catfish from Southeast Asia and the longest, the wels catfish of Eurasia, to detritivores (species that eat dead material on the bottom), and even to a tiny parasitic species commonly called the candiru, Vandellia cirrhosa. Catfish
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| Cornett Cornett
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| Family and consumer science Family and consumer sciences is an academic discipline that combines aspects of social and natural science. Family and consumer sciences deals with the relationship between individuals, families, and communities, and the environment in which they live. The field represents many disciplines including consumer science, nutrition, parenting, family economics and resource management, human development, interior design, textiles, apparel design, as well as other related subjects. Family_and_consumer_science
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| Root vascular plants, the root is the organ of a plant that typically lies below the surface of the soil. This is not always the case, however, since a root can also be aerial (growing above the ground) or aerating (growing up above the ground or especially above water). Root
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| Monsoon monsoon is a seasonal prevailing wind that lasts for several months. The term was first used in English in India, Bangladesh, Pakistan, and neighboring countries to refer to the big seasonal winds blowing from the Indian Ocean and Arabian Sea in the southwest bringing heavy rainfall to the area. Monsoon
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| Heike Kamerlingh Onnes Heike Kamerlingh Onnes (21 September 1853 – 21 February 1926) was a Dutch physicist. His scientific career was spent exploring extremely cold refrigeration techniques and the associated phenomena. Heike_Kamerlingh_Onnes
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| Maclura pomifera Osage-orange, Horse-apple or Bois D'Arc (Maclura pomifera) is dioeceous plant species, with male and female flowers on different plants. It is a small deciduous tree or large shrub, typically growing to tall. The fruit, a multiple fruit, is roughly spherical, but bumpy, and 7-15 cm in diameter, and it is filled with a sticky white latex sap. In fall, its color turns a bright yellow-green and it has a faint odor similar to that of oranges. Maclura_pomifera
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| Entomology Entomology (from Greek , entomos, "that which is cut in pieces or engraved/segmented", hence "insect"; and , -logia) is the scientific study of insects, a branch of arthropodology. At some 1.3 million described species, insects account for more than two-thirds of all known organisms,date back some 400 million years, and have many kinds of interactions with humans and other forms of life on earth. Entomology
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| Joseph Stiglitz Joseph Eugene Stiglitz (born February 9, 1943) is an American economist and a professor at Columbia University. He is a recipient of the John Bates Clark Medal (1979) and the Nobel Memorial Prize in Economic Sciences (2001). He is also the former Senior Vice President and Chief Economist of the World Bank. Joseph_Stiglitz
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| Environmental science Environmental science is an expression encompassing the wide range of scientific disciplines that need to be brought together to understand and manage the natural environment and the many interactions among physical, chemical, and biological components. Environmental Science provides an integrated, quantitative, and interdisciplinary approach to the study of environmental systems. Environmental_science
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| Role-based access control role-based access control (RBAC) is an approach to restricting system access to authorized users. It is a newer alternative approach to mandatory access control (MAC) and discretionary access control (DAC). RBAC is sometimes referred to as role based security.RBAC is a policy neutral and flexible access control technology sufficiently powerful to simulate DAC and MAC. Prior to the development of RBAC, MAC and DAC were considered to be the only known models for access control Role-based_access_control
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| Orthoptera The Orthoptera are an order of insects with paurometabolous or incomplete metamorphosis, including the grasshoppers, crickets and locusts. Many insects in this order produce sound (known as a "stridulation") by rubbing their wings against each other or their legs, the wings or legs containing rows of corrugated bumps. The tympanum or ear is located in the front tibia in crickets, mole crickets, and katydids, and on the first abdominal segment in the grasshoppers and locusts. Orthoptera
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