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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.[1][2]Contents1 Naomi Mine 2 Events and aftermath 3 References 4 External linksNaomi Mine[edit] The Naomi Mine was situated east of the 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.[3] 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.[4] Events and aftermath[edit] The explosion happened at about 7:15 on the night of Sunday, December 1, 1907. Inadequate ventilation allowed pockets of explosive gas to accumulate in the interior of the mine
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Monongahela River
The Monongahela River
River
(/məˌnɒŋɡəˈhiːlə, -ˈheɪ-/ mə-NONG-gə-HEE-lə, -HAY-)[10] — often referred to locally as the Mon (/ˈmɒn/) — is a 130-mile-long (210 km)[6] river on the Allegheny Plateau
Allegheny Plateau
in north-central West Virginia
West Virginia
and southwestern Pennsylvania, which flows from south to north. The Monongahela joins the Allegheny River
River
to form the Ohio River
Ohio River
at Pittsburgh.Contents1 Etymology1.1 Variant names2 Geography 3 History3.1 Ice Age 3.2 18th and 19th centuries 3.3 20th century4 Gallery 5 See also 6 Notes and references 7 Bibliography 8 External linksEtymology[edit] The Unami word Monongahela means "falling banks", in reference to the geological instability of the river's banks
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Pittsburgh Coal Seam
The Pittsburgh Coal Seam is the thickest and most extensive coal bed in the Appalachian Basin;[1] 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.[2][3] This coal seam is named for its outcrop high on the sheer north face of Mount Washington in Pittsburgh, Pennsylvania,[4] and it is considered to form the base of the upper coal measures of the Allegheny Plateau,[5] now known as the Monongahela Group.[6] The first reference to the Pittsburgh coal bed, named by H.D
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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,[1] and the orebody itself.[2] 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.[1]Contents1 Types of ventilation 2 Ventilation control 3 Regulations 4 Heating 5 ReferencesTypes of ventilation[edit] Flow-through ventilation is the main ventilation circuit for the mine. Air enters the mine from surface via a shaft, ventilation raise or adit. The air is distributed through the mine via internal ventilation raises and ramps, and flows are controlled by regulators and permanently mounted ventilation fans
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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 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
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Westmoreland County, Pennsylvania
Westmoreland County is a county located in the U.S. state of Pennsylvania. At the 2010 census, the population was 365,169.[1] The county seat is Greensburg.[2] Formed from, successively, Lancaster, Northumberland, and later Bedford Counties, Westmoreland County was founded on February 26, 1773, and was the first county in the colony of Pennsylvania whose entire territorial boundary was located west of the Allegheny Mountains. Westmoreland County originally included the present-day counties of Fayette, Washington, Greene, and parts of Beaver, Allegheny, Indiana, and Armstrong counties
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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.[n 1] 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
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Special
Special
Special
or specials may refer to:Contents1 Music 2 Film and television 3 Other uses 4 See alsoMusic[edit] Special
Special
(album), a 1992 album by Vesta Williams "Special" (Garbage song), 1998 "Special
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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,[3] 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.[4] It was the site of the Naomi Mine explosion, December 7, 1907.Contents1 Geography 2 Demographics 3 Notable people 4 ReferencesGeography[edit] Fayette 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).[5] 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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Darr Mine Disaster
The Darr Mine disaster at Van Meter, Rostraver Township, Westmoreland County, Pennsylvania, near Smithton, killed 239 men and boys on December 19, 1907.[1] It ranks as the worst coal mining disaster in Pennsylvanian history.[2] 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 on December 6 that killed 361 miners and the Naomi Mine explosion on December 1 that killed 34 people in Fayette City, PA.[3] References[edit]^ "Mine Explosion Entombs 250 Men" (PDF). New York Times. 1907-12-20. p. 1
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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.[1][2]Contents1 Naomi Mine 2 Events and aftermath 3 References 4 External linksNaomi Mine[edit] The Naomi Mine was situated east of the 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.[3] 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.[4] Events and aftermath[edit] The explosion happened at about 7:15 on the night of Sunday, December 1, 1907. Inadequate ventilation allowed pockets of explosive gas to accumulate in the interior of the mine
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