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Laurel Run Mine Fire
The Laurel Run mine fire is an underground mine fire near the communities of Laurel Run and Georgetown, in Luzerne County, Pennsylvania, in the United States. The fire started burning in 1915 at the Red Ash Coal Mine. Attempts to control it lasted from 1915 to 1957 and recommenced in 1966. In the 1960s, the United States government and the Pennsylvania state government became involved in containing the fire. Attempts at stopping the spread of the fire were erroneously declared successful in 1973, and the fire is still burning. Start of the fire and early history The Laurel Run mine fire began on December 6, 1915, in the Red Ash Coal Mine. A miner accidentally left a carbide lamp hanging from a timber support, which caught fire. Because of the lack of a night watchman, the fire went unnoticed for the entire weekend. When it was noticed after work resumed the following week, attempts were made to block off its air supply by pouring sand in the area and filling the openings of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carbide Lamp
Carbide lamps, or acetylene gas lamps, are simple lamps that produce and burn acetylene (C2H2) which is created by the reaction of calcium carbide (CaC2) with water (H2O). Acetylene gas lamps were used to illuminate buildings, as lighthouse beacons, and as headlights on motor-cars and bicycles. Portable acetylene gas lamps, worn on the hat or carried by hand, were widely used in mining in the early twentieth century. They are still employed by cavers, hunters, and cataphiles. Small carbide lamps called "carbide candles" or "smokers" are used for blackening rifle sights to reduce glare. They are sometimes referred to as "smokers" because of the sooty flame produced by acetylene. Mechanism A mining or caving lamp has calcium carbide placed in a lower chamber, the generator. The upper reservoir is then filled with water. A threaded valve or other mechanism is used to control the rate at which the water is allowed to drip into the chamber containing the calcium carbide. By ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania Department Of Environmental Protection
The Pennsylvania Department of Environmental Protection (DEP) is the agency in the U.S. state of Pennsylvania responsible for protecting and preserving the land, air, water, and public health through enforcement of the state's environmental laws. It was created by Act 18 of 1995, which split the Department of Environmental Resources into the Department of Environmental Protection and the Department of Conservation and Natural Resources. Its current acting secretary is Ramez Ziadeh. The Department of Environmental Resources was created by Act 275 of 1970, which abolished the Department of Forest and Waters. The Department of Forest and Waters was created by the General Assembly in 1901. The Department of Environmental Protection is charged with the responsibility for development of a balanced ecological system incorporating social, cultural, and economic needs of the commonwealth through development and protection. The department is responsible for the state's land, air, and water ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coal Bed
Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other 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) 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 energy and over a third of its electricity. Some iron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ridge And Valley
The Ridge-and-Valley Appalachians, also called the Ridge and Valley Province or the Valley and Ridge Appalachians, are a physiographic province of the larger Appalachian division and are also a belt within the Appalachian Mountains extending from southeastern New York in the north through northwestern New Jersey, westward into Pennsylvania through the Lehigh Valley, and southward into Maryland, West Virginia, Virginia, Kentucky, Tennessee, Georgia, and Alabama. They form a broad arc between the Blue Ridge Mountains and the Appalachian Plateau physiographic province (the Allegheny and Cumberland plateaus). They are characterized by long, even ridges, with long, continuous valleys in between. The river valleys were areas of indigenous settlements for thousands of years. In the historic period, the Cherokee people had towns along many of the rivers in western South Carolina and North Carolina, as well as on the western side of the Appalachian Mountains in present-day Tennessee. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syncline
In structural geology, a syncline is a fold with younger layers closer to the center of the structure, whereas an anticline is the inverse of a syncline. A synclinorium (plural synclinoriums or synclinoria) is a large syncline with superimposed smaller folds. Synclines are typically a downward fold (synform), termed a synformal syncline (i.e. a trough), but synclines that point upwards can be found when strata have been overturned and folded (an antiformal syncline). Characteristics On a geologic map, synclines are recognized as a sequence of rock layers, with the youngest at the fold's center or ''hinge'' and with a reverse sequence of the same rock layers on the opposite side of the hinge. If the fold pattern is circular or elongate, the structure is a basin. Folds typically form during crustal deformation as the result of compression that accompanies orogenic mountain building. Notable examples * Powder River Basin, Wyoming, US * Sideling Hill roadcut along Interstate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Citizens' Voice
''The Citizens' Voice'' is a compact newspaper published daily in Wilkes-Barre, Pennsylvania. Its 2005 circulation was 32,862, mostly Luzerne County residents. Founding The newspaper was founded in 1978 by striking employees of the Wilkes-Barre Publishing Company, which published the ''Times Leader''. Established on October 9 of that year, ''The Citizens' Voice'' was initially a "strike newspaper" published by the local Newspaper Guild, but quickly grew to become a direct competitor to the ''Times Leader''. After 11 years, the Newspaper Guild turned control of ''The Citizens' Voice'' over to the original striking employees. The Citizens' Voice, Inc., was formed to manage the newspaper. ''The Citizens' Voice'' added a Sunday edition in 1993. 2000 sale In 2000, the newspaper was sold to Scranton-based Times-Shamrock Communications. That year, the company formed the Northeast Pennsylvania News Alliance, a news-sharing agreement between Times-Shamrock's newspapers and several loca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Times Leader
The ''Times Leader'' is a privately owned newspaper in Wilkes-Barre, Pennsylvania. Founding Founded in 1879, it was locally owned until being purchased by Capital Cities in 1978. Early history On November 27, 1907, the ''Wilkes-Barre Times'' printed a notice that it and the ''Wilkes-Barre Leader'', both afternoon dailies, would merge, creating The ''Times Leader'' with the first newspaper to be dated Monday December 2, 1907. The ''Times Leader'', in the heart of coal country, was subject to a very bitter strike that began October 6, 1978. Over 200 union employees walked off the job in defiance of what they viewed as union busting tactics by the ''Times Leaders new corporate owner, Capital Cities. The four striking newspaper unions began to publish the ''Citizens' Voice'' as a strike paper. Eventually the four unions were decertified. The ''Voice'' continued publication. This in turn prompted competition and created the unusual environment where Wilkes-Barre, with its popula ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strip Mining
Surface mining, including strip mining, open-pit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit (the overburden) are removed, in contrast to underground mining, in which the overlying rock is left in place, and the mineral is removed through shafts or tunnels. In North America, where the majority of surface coal mining occurs, this method began to be used in the mid-16th century and is practiced throughout the world in the mining of many different minerals. In North America, surface mining gained popularity throughout the 20th century, and surface mines now produce most of the coal mined in the United States. In most forms of surface mining, heavy equipment, such as earthmovers, first remove the overburden. Next, large machines, such as dragline excavators or bucket-wheel excavators, extract the mineral. The pros of surface mining are that it has a lower financial cost and is a lot safer than undergrou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilkes-Barre Township, Luzerne County, Pennsylvania
Wilkes-Barre Township is a township with home rule status in Luzerne County, Pennsylvania. It is adjacent to the city of Wilkes-Barre. The population of the township was 3,219 at the 2020 census. History Founding In 1753, the Susquehanna Company was formed in Connecticut for settling the Wyoming Valley (in modern-day Pennsylvania). Connecticut succeeded in purchasing the land from the Native Americans; however, Pennsylvania already claimed the valley through a purchase they made in 1736. In 1762, roughly two hundred Connecticut settlers (Yankees) established a settlement near Mill Creek. They planted wheat and constructed log cabins. They returned to New England for the winter. Massacre of 1763 The Connecticut settlers returned in the spring of 1763 with their families. A party of Iroquois also visited the area with the dual purpose of inciting the Delaware and killing Teedyuscung, a local Delaware chief. On April 19, 1763, the residence of the chief and twenty others around ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seed (magazine)
''Seed'' (subtitled ''Science Is Culture''; originally ''Beneath the Surface'') is a defunct online science magazine published by Seed Media Group. The magazine looked at big ideas in science, important issues at the intersection of science and society, and the people driving global science culture. ''Seed'' was founded in Montreal by Adam Bly and the magazine was then headquartered in New York with bureaus around the world. May/June 2009 (Issue No. 22) was the last print issue. Content continued to be published on the website until its demise in 2012. ''Seed'' was a finalist for two National Magazine Awards in 2007 in the categories of Design and General Excellence (100,000 to 250,000), was the recipient of the ''Utne'' Independent Press Award, and was included in the 2006 Best American Science and Nature Writing anthology published by Houghton Mifflin and edited by Brian Greene. The magazine published original writing from scientists and science journalists. Scientists who c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geothermal Energy
Geothermal energy is the thermal energy in the Earth's crust which originates from the formation of the planet and from radioactive decay of materials in currently uncertain but possibly roughly equal proportions. The high temperature and pressure in Earth's interior cause some rock to melt and solid mantle to behave plastically. This results in parts of the mantle convecting upward since it is lighter than the surrounding rock. Temperatures at the core–mantle boundary can reach over 4000 °C (7200 °F). Geothermal heating, using water from hot springs, for example, has been used for bathing since Paleolithic times and for space heating since ancient Roman times. More recently geothermal power, the term used for generation of electricity from geothermal energy, has gained in importance. It is estimated that the earth's geothermal resources are theoretically more than adequate to supply humanity's energy needs, although only a very small fraction is currently being ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earth Conservancy
Earth is the third planet from the Sun and the only astronomical object known to harbor life. While large list of largest lakes and seas in the Solar System, volumes of water can be found throughout the Solar System, only water distribution on Earth, Earth sustains liquid surface water. About 71% of Earth's surface is made up of the ocean, dwarfing Earth's polar ice, lakes, and rivers. The remaining 29% of Earth's surface is land, consisting of continents and islands. Earth's surface layer is formed of several slowly moving plate tectonics, tectonic plates, which interact to produce mountain ranges, Volcano, volcanoes, and earthquakes. Earth's liquid outer core generates the magnetic field that shapes the magnetosphere of the Earth, deflecting destructive solar winds. Atmosphere of Earth, The atmosphere of the Earth consists mostly of nitrogen and oxygen. Greenhouse gases in the atmosphere like carbon dioxide (CO2) trap a part of the Solar irradiance, energy from the Sun c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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