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Breaker Boys
A breaker boy was a coal-mining worker in the United StatesHindman, Hugh D. ''Child Labor: An American History.'' Armonk, N.Y.: M.E. Sharpe, 2002. and United Kingdom whose job was to separate impurities from coal by hand in a coal breaker. Although breaker boys were primarily children, elderly coal miners who could no longer work in the mines because of age, disease, or accident were also sometimes employed as breaker boys. The use of breaker boys began in the mid-1860s. Although public disapproval of the employment of children as breaker boys existed by the mid-1880s, the practice did not end until the early 1920s. Coal breaking Coal came into wide use in the late 1590s in the United Kingdom after the island nation was widely deforested and a ban was placed on the harvesting of wood by Charles I of England so that forests could be used solely by the Royal Navy.Burke, James. ''Connections.'' New York: Little, Brown and Company, 1978, . p. 163-170. A newly emergent middle class ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Breaker Boys, Eagle Hill Colliery, Eastern PA 1
Breaker may refer to: Objects * A breaking wave on water, or a "breaker", a shallow over which waves break * Circuit breaker, an electrical overload switch * Breaker (hydraulic), a percussion hammer attached to an excavator People * Breaker Morant (1864-1902), Anglo-Australian folk hero, horseman, poet, soldier and convicted war criminal nicknamed "The Breaker" * Daniel Breaker (born 1980), American actor and comedian * Ronald Breaker, American biochemist and Yale professor * Someone who performs B-boying, also known as breakdancing Places * Breaker Mountain, Canada * Mount Breaker, Graham Land, Antarctica * Breaker Island, Palmer Archipelago, Antarctica * Breaker Reef, Hong Kong, an uninhabited island Arts and entertainment * ''The Breaker'' (film), a 1974 documentary about Breaker Morant * ''Breaker'' (Accept album), 1981 * ''Breaker'' (For Today album), 2010 * ''Breaker'' (Vary Lumar album), 2014 * ''The Breaker'' (album), by Little Big Town, 2017 * ''The Breaker'' ... [...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 Iron A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coalworker's Pneumoconiosis
Coal workers' pneumoconiosis (CWP), also known as black lung disease or black lung, is an occupational type of pneumoconiosis caused by long-term exposure to coal dust. It is common in coal miners and others who work with coal. It is similar to both silicosis from inhaling silica dust and asbestosis from inhaling asbestos dust. Inhaled coal dust progressively builds up in the lungs and leads to inflammation, fibrosis, and in worse cases, necrosis. Coal workers' pneumoconiosis, severe state, develops after the initial, milder form of the disease known as anthracosis (from the Greek , or —coal, carbon). This is often asymptomatic and is found to at least some extent in all urban dwellers due to air pollution. Prolonged exposure to large amounts of coal dust can result in more serious forms of the disease, ''simple coal workers' pneumoconiosis'' and ''complicated coal workers' pneumoconiosis'' (or progressive massive fibrosis, or PMF). More commonly, workers exposed to coal dust ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asthma
Asthma is a long-term inflammatory disease of the airways of the lungs. It is characterized by variable and recurring symptoms, reversible airflow obstruction, and easily triggered bronchospasms. Symptoms include episodes of wheezing, coughing, chest tightness, and shortness of breath. These may occur a few times a day or a few times per week. Depending on the person, asthma symptoms may become worse at night or with exercise. Asthma is thought to be caused by a combination of genetic and environmental factors. Environmental factors include exposure to air pollution and allergens. Other potential triggers include medications such as aspirin and beta blockers. Diagnosis is usually based on the pattern of symptoms, response to therapy over time, and spirometry lung function testing. Asthma is classified according to the frequency of symptoms, forced expiratory volume in one second (FEV1), and peak expiratory flow rate. It may also be classified as atopic or non-atopic, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coal Bin
A coal bin, coal store or coal bunker is a storage container for coal awaiting use or transportation. This can be either in domestic, commercial or industrial premises, or on a ship or locomotive tender, or at a coal mine or processing plant. Domestic coal bunkers are associated with the use of coal in open fires or for solid-fuel central heating. Free-standing bunkers were commonly made of wood or concrete and are currently sold in materials including plastic or galvanised metal. Coal bins or bunkers could also form an outhouse or be partly or fully underground. Coal bins form or formed part of industrial plants, and were found on steam ship A steamship, often referred to as a steamer, is a type of steam-powered vessel, typically ocean-faring and seaworthy, that is propelled by one or more steam engines that typically move (turn) propellers or paddlewheels. The first steamships ...s. References {{architecture-stub Semi-subterranean structures Bin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michael Novak
Michael John Novak Jr. (September 9, 1933 – February 17, 2017) was an American Catholic philosopher, journalist, novelist, and diplomat. The author of more than forty books on the philosophy and theology of culture, Novak is most widely known for his book ''The Spirit of Democratic Capitalism'' (1982). In 1993 Novak was honored with an honorary doctorate at Universidad Francisco Marroquín due to his commitment to the idea of liberty. In 1994 he was awarded the Templeton Prize for Progress in Religion, which included a million-dollar purse awarded at Buckingham Palace. He wrote books and articles focused on capitalism, religion, and the politics of democratization. Novak served as United States Ambassador to the United Nations Commission on Human Rights in 1981 and 1982 and led the US delegation to the Conference on Security and Cooperation in Europe in 1986. Additionally, Novak served on the board of directors of the now-defunct Coalition for a Democratic Majority, a conserva ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boys Picking Slate From Coal
A boy is a young male human. The term is commonly used for a child or an adolescent. When a male human reaches adulthood, he is described as a man. Definition, etymology, and use According to the ''Merriam-Webster Dictionary'', a boy is "a male child from birth to adulthood". The word "boy" comes from Middle English ''boi, boye'' ("boy, servant"), related to other Germanic words for ''boy'', namely East Frisian ''boi'' ("boy, young man") and West Frisian ''boai'' ("boy"). Although the exact etymology is obscure, the English and Frisian forms probably derive from an earlier Anglo-Frisian *''bō-ja'' ("little brother"), a diminutive of the Germanic root *''bō-'' ("brother, male relation"), from Proto-Indo-European *''bhā-'', *''bhāt-'' ("father, brother"). The root is also found in Norwegian dialectal ''boa'' ("brother"), and, through a reduplicated variant *''bō-bō-'', in Old Norse ''bófi'', Dutch ''boef'' "(criminal) knave, rogue", German ''Bube'' ("knave, rogue, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ignition Point
The fire point of a fuel is the lowest temperature at which the vapour of that fuel will continue to burn for at least five seconds after ignition by an open flame of standard dimension. At the flash point, a lower temperature, a substance will ignite briefly, but vapor might not be produced at a rate to sustain the fire. Most tables of material properties will only list material flash points. In general the fire point can be assumed to be about 10 °C higher than the flash point, although this is no substitute for testing if the fire point is safety critical. Testing of the fire point is done by open cup apparatus. ASTM.org See also *[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cast Iron
Cast iron is a class of iron–carbon alloys with a carbon content more than 2%. Its usefulness derives from its relatively low melting temperature. The alloy constituents affect its color when fractured: white cast iron has carbide impurities which allow cracks to pass straight through, grey cast iron has graphite flakes which deflect a passing crack and initiate countless new cracks as the material breaks, and ductile cast iron has spherical graphite "nodules" which stop the crack from further progressing. Carbon (C), ranging from 1.8 to 4 wt%, and silicon (Si), 1–3 wt%, are the main alloying elements of cast iron. Iron alloys with lower carbon content are known as steel. Cast iron tends to be brittle, except for malleable cast irons. With its relatively low melting point, good fluidity, castability, excellent machinability, resistance to deformation and wear resistance, cast irons have become an engineering material with a wide range of applications and are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Industrial Chemical
The chemical industry comprises the companies that produce industrial chemicals. Central to the modern world economy, it converts raw materials (oil, natural gas, air, water, metals, and minerals) into more than 70,000 different products. The plastics industry contains some overlap, as some chemical companies produce plastics as well as chemicals. Various professionals are involved in the chemical industry including chemical engineers, chemists and lab technicians. History Although chemicals were made and used throughout history, the birth of the heavy chemical industry (production of chemicals in large quantities for a variety of uses) coincided with the beginnings of the Industrial Revolution. Industrial Revolution One of the first chemicals to be produced in large amounts through industrial processes was sulfuric acid. In 1736 pharmacist Joshua Ward developed a process for its production that involved heating saltpeter, allowing the sulfur to oxidize and combine with wate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wrought Iron
Wrought iron is an iron alloy with a very low carbon content (less than 0.08%) in contrast to that of cast iron (2.1% to 4%). It is a semi-fused mass of iron with fibrous slag Inclusion (mineral), inclusions (up to 2% by weight), which give it a wood-like "grain" that is visible when it is etched, rusted, or bent to structural failure, failure. Wrought iron is tough, malleable, ductile, corrosion resistant, and easily forge welding, forge welded, but is more difficult to welding, weld electrically. Before the development of effective methods of steelmaking and the availability of large quantities of steel, wrought iron was the most common form of malleable iron. It was given the name ''wrought'' because it was hammered, rolled, or otherwise worked while hot enough to expel molten slag. The modern functional equivalent of wrought iron is Carbon steel#Mild or low-carbon steel, mild steel, also called low-carbon steel. Neither wrought iron nor mild steel contain enough carbon to be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anthracite Coal
Anthracite, also known as hard coal, and black coal, is a hard, compact variety of coal that has a submetallic luster. It has the highest carbon content, the fewest impurities, and the highest energy density of all types of coal and is the highest ranking of coals. Anthracite is the most metamorphosed type of coal (but still represents low-grade metamorphism), in which the carbon content is between 86% and 97%. The term is applied to those varieties of coal which do not give off tarry or other hydrocarbon vapours when heated below their point of ignition. Anthracite ignites with difficulty and burns with a short, blue, and smokeless flame. Anthracite is categorized into standard grade, which is used mainly in power generation, high grade (HG) and ultra high grade (UHG), the principal uses of which are in the metallurgy sector. Anthracite accounts for about 1% of global coal reserves, and is mined in only a few countries around the world. The Coal Region of northeastern Penn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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