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Naomi Mine Explosion
The NAOMI MINE EXPLOSION occurred on December 1, 1907, in the Naomi Mine, approximately 2 miles (3.2 km) from Fayette City, Pennsylvania . The incident resulted in the deaths of at least 35 miners and left no survivors. CONTENTS * 1 Naomi Mine * 2 Events and aftermath * 3 References * 4 External links NAOMI MINEThe Naomi Mine was situated east of the Monongahela River
Monongahela River
. The mine was built to exploit the Pittsburgh coal seam , which was positioned at a depth of 160 feet (49 m) below the surface of the mine. Coal was hauled out of the mine with carts that were equipped with electric motors. From 1870 (the earliest year records were kept) to December 1, 1907 (the day the mine closed), a total of 63 men were killed in the Naomi Mine. EVENTS AND AFTERMATHThe explosion happened at about 7:15 on the night of Sunday, December 1, 1907
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Geographic Coordinate System
A GEOGRAPHIC COORDINATE SYSTEM is a coordinate system used in geography that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are often chosen such that one of the numbers represents a vertical position , and two or three of the numbers represent a horizontal position . A common choice of coordinates is latitude , longitude and elevation . To specify a location on a two-dimensional map requires a map projection
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Special
SPECIAL or SPECIALS may refer to: CONTENTS * 1 Music * 2 Film and television * 3 Other uses * 4 See also MUSIC * Special (album) , a 1992 album by Vesta Williams * "Special" (Garbage song) , 1998 * "Special" (Mew song) , 2005 * "Special" (Stephen Lynch song) , 2000 * The Specials
The Specials
, a British band * "Special", a song by Violent Femmes on The Blind Leading the Naked * "Special", a song on
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Westmoreland County, Pennsylvania
WESTMORELAND COUNTY is a county located in the U.S. state
U.S. state
of Pennsylvania
Pennsylvania
. At the 2010 census , the population was 365,169. The county seat is Greensburg . Cut from Lancaster , Northumberland , and later Bedford Counties, Westmoreland County was founded on February 26, 1773 and was the first county in the colony of Pennsylvania
Pennsylvania
in which its entire territorial boundary was located west of the Allegheny Mountains
Allegheny Mountains
. Westmoreland County originally included the present-day counties of Fayette , Washington , Greene , and parts of Beaver , Allegheny , Indiana , and Armstrong counties. It is named for Westmorland
Westmorland
, a historic county of England
England
. Westmoreland County is included in the Pittsburgh, PA Metropolitan Statistical Area
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Electric Arc
An ELECTRIC ARC or ARC DISCHARGE is an electrical breakdown of a gas that produces an ongoing electrical discharge . The current through a normally nonconductive medium such as air produces a plasma ; the plasma may produce visible light . An arc discharge is characterized by a lower voltage than a glow discharge , and it relies on thermionic emission of electrons from the electrodes supporting the arc. An archaic term is VOLTAIC ARC, as used in the phrase "voltaic arc lamp". Techniques for arc suppression can be used to reduce the duration or likelihood of arc formation. In the late 1800s, electric arc lighting was in wide use for public lighting . Some low-pressure electric arcs are used in many applications. For example, fluorescent tubes , mercury, sodium, and metal halide lamps are used for lighting; xenon arc lamps have been used for movie projectors
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Monongahela River
The MONONGAHELA RIVER (/məˌnɒŋɡəˈhiːlə, -ˈheɪlə/ mə-NONG-gə-HEE-lə , -HAY-lə ) — often referred to locally as THE MON /ˈmɒn/ — is a 130-mile-long (210 km) river on the Allegheny Plateau
Allegheny Plateau
in north-central West Virginia
West Virginia
and southwestern Pennsylvania
Pennsylvania
, which flows from south to north. The Monongahela joins the Allegheny River
River
to form the Ohio River
Ohio River
at Pittsburgh
Pittsburgh
. CONTENTS* 1 Etymology * 1.1 Variant names * 2 Geography * 3 History * 3.1 Ice Age * 3.2 18th and 19th centuries * 3.3 20th century * 3.4 Monongy * 4 Gallery * 5 See also * 6 Notes and references * 7 Bibliography * 8 External links ETYMOLOGYThe Native American word Monongahela means "falling banks", in reference to the geological instability of the river's banks
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Underground Mine Ventilation
UNDERGROUND MINE VENTILATION provides a flow of air to the underground workings of a mine of sufficient volume to dilute and remove dust and noxious gases (typically NOx , SO2 , methane , CO2 and CO ) and to regulate temperature. The source of these gases are equipment that runs on diesel engines , blasting with explosives , and the orebody itself. The largest component of the operating cost for mine ventilation is electricity to power the ventilation fans, which may account for one third of a typical underground mine's entire electrical power cost. CONTENTS * 1 Types of ventilation * 2 Ventilation control * 3 Regulations * 4 Heating * 5 References TYPES OF VENTILATIONFLOW-THROUGH VENTILATION is the main ventilation circuit for the mine. Air enters the mine from surface via a shaft , ventilation raise or adit
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Pittsburgh Coal Seam
The PITTSBURGH COAL SEAM is the thickest and most extensive coal bed in the Appalachian Basin; hence, it is the most economically important coal bed in the eastern United States . The Upper Pennsylvanian Pittsburgh coal bed of the Monongahela Group is extensive and continuous, extending over 11,000 mi2 through 53 counties. It extends from Allegany County, Maryland to Belmont County, Ohio and from Allegheny County, Pennsylvania southwest to Putnam County, West Virginia . This coal seam is named for its outcrop high on the sheer north face of Mount Washington in Pittsburgh, Pennsylvania , and it is considered to form the base of the upper coal measures of the Allegheny Plateau , now known as the Monongahela Group. The first reference to the Pittsburgh coal bed, named by H.D. Rodgers of the First Geological Survey of Pennsylvania, was on a 1751 map
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Darr Mine Disaster
The DARR MINE DISASTER at Van Meter, Rostraver Township , Westmoreland County, Pennsylvania
Westmoreland County, Pennsylvania
, near Smithton , killed 239 men and boys on December 19, 1907. It ranks as the worst coal mining disaster in Pennsylvanian history. An inquiry carried out after the disaster determined that the blast was the result of miners carrying open lamps in an area cordoned off the previous day by the fire boss. The mine’s owner, the Pittsburgh Coal Company was not held responsible but abandoned the use of open lamps after the disaster. The Darr Mine blast was the third major mine disaster in December 1907 (which would become the deadliest mine fatality month in US history); it followed the Monongah Mining disaster in West Virginia
West Virginia
on December 6 that killed 361 miners and the Naomi Mine explosion on December 1 that killed 34 people in Fayette City , PA
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Fayette City, Pennsylvania
FAYETTE CITY is a borough in Fayette County , Pennsylvania , United States. The population was 596 at the 2010 census , down from 714 at the 2000 census. It is served by the Belle Vernon Area School District . Like many towns around it, Fayette City has been home to many coal miners supporting the coal industry in the region. It was the site of the Naomi Mine explosion , December 7, 1907. CONTENTS * 1 Geography * 2 Demographics * 3 Notable people * 4 References GEOGRAPHYFayette City is located in northwestern Fayette County at 40°6′2″N 79°50′20″W / 40.10056°N 79.83889°W / 40.10056; -79.83889 (40.100647, -79.838913). It sits on the east bank of the Monongahela River , which forms the border with Washington County . The borough of Allenport is directly across the river, but the closest river crossing is the I-70 bridge 3 miles (5 km) north at Belle Vernon
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Naomi Mine Explosion
The NAOMI MINE EXPLOSION occurred on December 1, 1907, in the Naomi Mine, approximately 2 miles (3.2 km) from Fayette City, Pennsylvania . The incident resulted in the deaths of at least 35 miners and left no survivors. CONTENTS * 1 Naomi Mine * 2 Events and aftermath * 3 References * 4 External links NAOMI MINEThe Naomi Mine was situated east of the Monongahela River
Monongahela River
. The mine was built to exploit the Pittsburgh coal seam , which was positioned at a depth of 160 feet (49 m) below the surface of the mine. Coal was hauled out of the mine with carts that were equipped with electric motors. From 1870 (the earliest year records were kept) to December 1, 1907 (the day the mine closed), a total of 63 men were killed in the Naomi Mine. EVENTS AND AFTERMATHThe explosion happened at about 7:15 on the night of Sunday, December 1, 1907
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