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Johnstown Inclined Plane
The Johnstown Inclined Plane is a funicular in Johnstown, Cambria County, in the U.S. state of Pennsylvania. The incline and its two stations connect the city of Johnstown, situated in a valley at the confluence of the Stonycreek and the Little Conemaugh rivers, to the borough of Westmont on Yoder Hill. The Johnstown Inclined Plane is billed as the "world's steepest vehicular inclined plane". It can carry automobiles and passengers, up or down a slope with a grade of 71.9%. The travel time between stations is 90 seconds. After a catastrophic flood in 1889, the Johnstown Inclined Plane was completed in 1891 to serve as an escape route from floods in the valley, as well as a convenient mode of transportation for residents of the new communities above the valley. It was operated by Cambria Iron Company and its successor Bethlehem Steel until 1935, when it was sold to the borough of Westmont. The incline was briefly shut down in 1962 when its supply of power from Bethle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johnstown, Pennsylvania
Johnstown is a city in Cambria County, Pennsylvania, United States. The population was 18,411 as of the 2020 census. Located east of Pittsburgh, Johnstown is the principal city of the Johnstown, Pennsylvania, Metropolitan Statistical Area, which includes Cambria County. It is also part of the Johnstown-Somerset, PA Combined Statistical Area, which includes both Cambria and Somerset Counties. History Johnstown was settled in 1770. The city has experienced three major floods in its history. The Johnstown Flood of May 31, 1889, occurred after the South Fork Dam collapsed upstream from the city during heavy rains. At least 2,209 people died as a result of the flood and subsequent fire that raged through the debris. Another major flood occurred in 1936. Despite a pledge by President Franklin Delano Roosevelt to make the city flood free, and subsequent work to do so, another major flood occurred in 1977. Before becoming an independent town, Windber, Pennsylvania, was consid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bethlehem Steel
The Bethlehem Steel Corporation was an American steelmaking company headquartered in Bethlehem, Pennsylvania. For most of the 20th century, it was one of the world's largest steel producing and shipbuilding companies. At the height of its success and productivity, the company was a symbol of American manufacturing leadership in the world, and its decline and ultimate liquidation in the late 20th century is similarly cited as an example of America's diminished manufacturing leadership. From its founding in 1857 through its 2003 dissolution, Bethlehem Steel's headquarters and primary steel mill manufacturing facilities were based in Bethlehem, Pennsylvania in the Lehigh Valley region of the United States. The company's steel was used in the construction of many of America's largest and most famed structures. Among major buildings, Bethlehem produced steel for 28 Liberty Street, the Chrysler Building, the Empire State Building, Madison Square Garden, Rockefeller Center, and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Baltimore Sun
''The Baltimore Sun'' is the largest general-circulation daily newspaper based in the U.S. state of Maryland and provides coverage of local and regional news, events, issues, people, and industries. Founded in 1837, it is currently owned by Tribune Publishing. The ''Baltimore Sun's'' parent company, '' Tribune Publishing'', was acquired by Alden Global Capital, which operates its media properties through Digital First Media, in May 2021. History ''The Sun'' was founded on May 17, 1837, by printer/editor/publisher/owner Arunah Shepherdson Abell (often listed as "A. S. Abell") and two associates, William Moseley Swain, and Azariah H. Simmons, recently from Philadelphia, where they had started and published the '' Public Ledger'' the year before. Abell was born in Rhode Island, became a journalist with the ''Providence Patriot'' and later worked with newspapers in New York City and Boston.Van Doren, Charles and Robert McKendry, ed., ''Webster's American Biographies''. (Spring ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Counterweight
A counterweight is a weight that, by applying an opposite force, provides balance and stability of a mechanical system. The purpose of a counterweight is to make lifting the load faster and more efficient, which saves energy and causes less wear and tear on the lifting machine. Counterweights are often used in traction lifts (elevators), cranes and fun fair rides. In these applications, the expected load multiplied by the distance that load will be spaced from the central support (called the "tipping point") must be equal to the counterweight's mass times its distance from the tipping point in order to prevent over-balancing either side. This distance times mass is called the load moment. A counterbalance is a weight or force that balances or offsets another as when two objects of equal weight, power, or influence are acting in opposition to each other. The objects are then said to be in counterbalance. Counterweights in action Trebuchet: There are five major components of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reading Eagle
The ''Reading Eagle'' is the major daily newspaper in Reading, Pennsylvania. A family-owned newspaper until the spring of 2019, its reported circulation is 37,000 (daily) and 50,000 (Sundays). It serves the Reading and Berks County region of Pennsylvania. After celebrating its sesquicentennial of local ownership and editorial control in 2018, the ''Reading Eagle'' was acquired by the Denver, Colorado-based MediaNews Group (also known as Digital First Media) in May 2019. History The newspaper was founded on January 28, 1868. Initially an afternoon paper, it was published Monday through Saturday with a Sunday-morning edition added later. In 1940, the ''Eagle'' acquired the ''Reading Times'', which was a morning paper, but they remained separate papers. The staff of the two papers was combined in 1982. In June 2002, the ''Reading Times'' ceased publication, and the ''Eagle'' became a morning paper. Both papers had been publishing a joint Saturday-morning edition since 1988 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sodium-vapor Lamp
A sodium-vapor lamp is a gas-discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm. Two varieties of such lamps exist: low pressure and high pressure. Low-pressure sodium lamps are highly efficient electrical light sources, but their yellow light restricts applications to outdoor lighting, such as street lamps, where they are widely used. High-pressure sodium lamps emit a broader spectrum of light than the low-pressure lamps, but they still have poorer color rendering than other types of lamps. Low-pressure sodium lamps only give monochromatic yellow light and so inhibit color vision at night. Single ended self-starting lamps are insulated with a mica disc and contained in a borosilicate glass gas discharge tube (arc tube) and a metal cap. They include the sodium-vapor lamp that is the gas-discharge lamp in street lighting. Development The low-pressure sodium arc discharge lamp was first made practical around ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Yellow Pine
In ecology and forestry, yellow pine refers to a number of conifer species that tend to grow in similar plant communities and yield similar strong wood. In the Western United States, yellow pine refers to Jeffrey pine or ponderosa pine. In the Southeastern United States, yellow pine refers to longleaf pine, shortleaf pine, slash pine, or loblolly pine. In the United Kingdom, yellow pine refers to eastern white pine or Scots pine. In New Zealand, it refers to ''Halocarpus biformis''. Western United States The Jeffrey pine and the ponderosa pine are common in drier montane areas of the Sierra Nevada. They are often confused by casual observers. Across the remainder of the American West, Jeffrey pine is absent, with ponderosa pine being the sole yellow pine. Jeffrey pine is more stress tolerant than ponderosa pine in the Sierra Nevada. At higher elevations, on poorer soils, in colder climates, and in drier climates, Jeffrey pine replaces ponderosa as the dominant tree (Jeffre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railroad Tie
A railroad tie, crosstie (American English), railway tie ( Canadian English) or railway sleeper ( Australian and British English) is a rectangular support for the rails in railroad tracks. Generally laid perpendicular to the rails, ties transfer loads to the track ballast and subgrade, hold the rails upright and keep them spaced to the correct gauge. Railroad ties are traditionally made of wood, but prestressed concrete is now also widely used, especially in Europe and Asia. Steel ties are common on secondary lines in the UK; plastic composite ties are also employed, although far less than wood or concrete. As of January 2008, the approximate market share in North America for traditional and wood ties was 91.5%, the remainder being concrete, steel, azobé (red ironwood) and plastic composite. Tie spacing may depend on the type of tie, traffic loads and other requirements, for example 2640 concrete ties per mile on North American mainline railroads to 2112 timber ties per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minute Of Arc
A minute of arc, arcminute (arcmin), arc minute, or minute arc, denoted by the symbol , is a unit of angular measurement equal to of one degree. Since one degree is of a turn (or complete rotation), one minute of arc is of a turn. The nautical mile (nmi) was originally defined as the arc length of a minute of latitude on a spherical Earth, so the actual Earth circumference is very near . A minute of arc is of a radian. A second of arc, arcsecond (arcsec), or arc second, denoted by the symbol , is of an arcminute, of a degree, of a turn, and (about ) of a radian. These units originated in Babylonian astronomy as sexagesimal subdivisions of the degree; they are used in fields that involve very small angles, such as astronomy, optometry, ophthalmology, optics, navigation, land surveying, and marksmanship. To express even smaller angles, standard SI prefixes can be employed; the milliarcsecond (mas) and microarcsecond (μas), for instance, are commonly used in astro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Broad Gauge
A broad-gauge railway is a railway with a track gauge (the distance between the rails) broader than the used by standard-gauge railways. Broad gauge of , commonly known as Russian gauge, is the dominant track gauge in former Soviet Union ( CIS states, Baltic states, Georgia and Ukraine), Mongolia and Finland. Broad gauge of , commonly known as Irish Gauge, is the dominant track gauge in Ireland, and the Australian states of Victoria and Adelaide. Broad gauge of , commonly known as Iberian gauge, is the dominant track gauge in Spain and Portugal. Broad gauge of , commonly known as Indian gauge, is the dominant track gauge in India, Pakistan, Bangladesh, Sri Lanka, Argentina, Chile, and on BART (Bay Area Rapid Transit) in the San Francisco Bay Area. This is the widest gauge in common use anywhere in the world. It is possible for trains on both Iberian gauge and Indian gauge to travel on each other's tracks with no modifications in the vast majority of cases. History ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fort Pitt Incline
The Fort Pitt Incline was a gauge funicular railroad in the Bluff neighborhood of Pittsburgh. Opened in 1882, the incline ran from 2nd Avenue to Bluff Street, a distance of , and a vertical distance of . The designer was Samuel Diescher. The incline was abandoned on 7 November 1900, and afterward sat idle for about three years before fire destroyed it. Marking the former path of the incline are public steps which ascend from the south portal of the Armstrong Tunnel (at the South Tenth Street Bridge) to the Boulevard of the Allies next to the Duquesne University campus. See also * List of funicular railways This is a list of funicular railways, organised by place within country and continent. The funiculars range from short urban lines to significant multi-section mountain railways. A funicular railway is distinguished from the similar incline eleva ... * List of inclines in Pittsburgh References {{Pittsburgh 10 ft gauge railways in the United States Railway i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Castle Shannon Incline
The Castle Shannon Incline was a funicular railroad in Pittsburgh, Pennsylvania. It was originally part of the Pittsburgh and Castle Shannon Railroad route to the suburb of Castle Shannon. It replaced an earlier incline dating to 1825 that brought coal down from a mine in Mount Washington. History Initially opened on August 26, 1890, the incline operated for only a few days before breaking down, the original machinery being unable to bear the strain of the large freight and passenger cars. After a second abortive run in October, it was decided that the machinery had to be replaced. The refitted incline opened on March 7, 1891. It ran from Bailey Avenue west of Haberman Avenue down to Carson Street just west of Arlington Avenue. The oldest part of the Pittsburgh and Castle Shannon Railroad was a coal mine in Mount Washington. When the mine was played out in 1861, the company opened the back (south) side of the mine and continued it down a horseshoe curve into the Saw Mill ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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