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Lehigh County, Pennsylvania
Lehigh County (; Pennsylvania Dutch language, Pennsylvania Dutch: ''Lechaa Kaundi'') is a County (United States), county in the Commonwealth (U.S. state), Commonwealth of Pennsylvania. As of the 2020 United States census, 2020 census, the county's population was 374,557.Lehigh County at U.S. Census Quick Facts Its county seat is Allentown, Pennsylvania, Allentown, the state's third-largest city after Philadelphia and Pittsburgh. Along with Northampton County, Pennsylvania, Northampton County to its east, the two counties combine to form the Lehigh Valley region of eastern Pennsylvania, the Pennsylvania metropolitan areas, third-largest metropolitan area of Pennsylvania with a population of 861,889 as of 2020. Lehigh County is one of the fastest-growing counties in Pennsylvania and the more highly po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Old Lehigh County Courthouse
The Old Lehigh County Courthouse is a historic county courthouse located at 503 West Hamilton Street in Allentown, Pennsylvania. It was added to the National Register of Historic Places in 1981. History and architectural features 19th century The courthouse's original section was built between 1814 and 1819 and was a two-and-one-half-story stone building with a hipped roof. ''Note:'' This includes It was remodeled and enlarged in 1864, in the Italianate style. ''Note:'' This includes An addition on the west was added in between 1880 and 1881. 20th century Between 1914 and 1916, a second addition was added to its north between 1914 and 1916 in the Beaux-Arts style. ''Note:'' This includes The courthouse is featured on the Lehigh County seal, which was introduced in 1944. In 1981, in recognition of its historical significance, the Old Lehigh County Courthouse was added to the National Register of Historic Places. See also * List of historic places in Allentown, Pennsylvan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anthracite
Anthracite, also known as hard coal and black coal, is a hard, compact variety of coal that has a lustre (mineralogy)#Submetallic lustre, submetallic lustre. It has the highest carbon content, the fewest impurities, and the highest energy density of all types of coal and is the highest Coal analysis#Coal classification by rank, ranking of coals. The Coal Region of Northeastern Pennsylvania in the United States has the largest known deposits of anthracite coal in the world with an estimated reserve of seven billion short ton, short tons. Coal in China, China accounts for the majority of global production; other producers include Coal in Russia, Russia, Coal in Ukraine, Ukraine, Coal in North Korea, North Korea, Coal in South Africa, South Africa, Coal in Vietnam, Vietnam, Coal in Australia, Australia, Coal in Canada, Canada, and the Coal mining in the United States, United States. Total production in 2020 was 615 million tons. Anthracite is the most metamorphism, metamorphosed ty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York City
New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive with a respective county. The city is the geographical and demographic center of both the Northeast megalopolis and the New York metropolitan area, the largest metropolitan area in the United States by both population and urban area. New York is a global center of finance and commerce, culture, technology, entertainment and media, academics, and scientific output, the arts and fashion, and, as home to the headquarters of the United Nations, international diplomacy. With an estimated population in 2024 of 8,478,072 distributed over , the city is the most densely populated major city in the United States. New York City has more than double the population of Los Angeles, the nation's second-most populous city. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berks County, Pennsylvania
Berks County (Pennsylvania Dutch language, Pennsylvania Dutch: ''Barricks Kaundi'') is a County (United States), county in the Commonwealth (U.S. state), Commonwealth of Pennsylvania. As of the 2020 United States census, 2020 census, the county's population was 428,849. The county seat is Reading, Pennsylvania, Reading, the List of municipalities in Pennsylvania, fourth-most populous city in the state. The county is part of the South Central Pennsylvania, South Central region of the commonwealth. The county borders Lehigh County, Pennsylvania, Lehigh County to its north, Schuylkill County, Pennsylvania, Schuylkill County to its north, Lebanon County, Pennsylvania, Lebanon and Lancaster County, Pennsylvania, Lancaster counties to its west, Chester County, Pennsylvania, Chester County to its south, and Montgomery County, Pennsylvania, Montgomery County to its east. The county is approximately southwest of Allentown, Pennsylvania, Allentown, the state's third-largest city, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schuylkill County, Pennsylvania
Schuylkill County (, ; Pennsylvania Dutch language, Pennsylvania Dutch: Schulkill Kaundi) is a County (United States), county in the Commonwealth (U.S. state), Commonwealth of Pennsylvania. As of the 2020 United States census, 2020 census, the population was 143,049. The county seat is Pottsville, Pennsylvania, Pottsville. The county is part of the Northeastern Pennsylvania, Northeast Pennsylvania region of the state. The county is part of the Pottsville micropolitan statistical area, and borders eight counties: Berks County, Pennsylvania, Berks and Lebanon County, Pennsylvania, Lebanon counties to its south, Dauphin County, Pennsylvania, Dauphin and Northumberland County, Pennsylvania, Northumberland counties to its west, Columbia County, Pennsylvania, Columbia and Luzerne County, Pennsylvania, Luzerne counties to its north, and Carbon County, Pennsylvania, Carbon and Lehigh County, Pennsylvania, Lehigh counties to its east. The county is approximately west of Allentown, Penn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carbon County, Pennsylvania
Carbon County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 64,749. The county is part of the Northeast region of the commonwealth. The county borders Lehigh and Northampton counties in the state's Lehigh Valley region to its south, Monroe County to its east, Luzerne County to its north, and Schuylkill County to its west. The county is approximately northwest of Allentown, the state's third-largest city, and west of New York City, the nation's largest city. The county seat is Jim Thorpe, which was founded in 1818 as Mauch Chunk. The Lehigh River, a tributary of the Delaware River, flows through Carbon County. History Moravian settlement In 1745, the first colonial settlement in Carbon County was established by a Moravian mission in Gnadenhutten, in present-day Lehighton. By 1752, increased hostility between colonialists and Native Americans put Gnadenhutten at risk for attack; in 1755, the community was attacked by N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bucks County, Pennsylvania
Bucks County is a County (United States), county in the Commonwealth (U.S. state), Commonwealth of Pennsylvania. As of the 2020 United States census, 2020 census, the population was 646,538, making it the List of counties in Pennsylvania, fourth-most populous county in Pennsylvania. Its county seat is Doylestown, Pennsylvania, Doylestown. The county is named after the Counties of England, English county of Buckinghamshire. The county is part of the Delaware Valley, Southeast region of the commonwealth. The county represents the northern boundary of the Delaware Valley, Philadelphia–Camden–Wilmington, PA–NJ–DE–MD metropolitan statistical area. To its southwest, Bucks County borders Montgomery County, Pennsylvania, Montgomery County and Philadelphia, the nation's sixth-largest city. To its east, the county borders the Delaware River and U.S. state of New Jersey. To its north, the county borders Lehigh County, Pennsylvania, Lehigh and Northampton County, Pennsylvania, N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montgomery County, Pennsylvania
Montgomery County, colloquially referred to as Montco, is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population of the county was 856,553, making it the third-most populous county in Pennsylvania after Philadelphia and Allegheny counties and the most populous county in Pennsylvania without a major city. The county seat and largest city is Norristown. The county is part of the Philadelphia– Camden– Wilmington PA- NJ– DE– MD metropolitan statistical area, known as the Delaware Valley, and marks the Delaware Valley's northern border with the Lehigh Valley region of eastern Pennsylvania. The county borders Philadelphia, the nation's sixth-largest city, to its southeast, Bucks County to its east, Berks and Lehigh counties to its north, Delaware County to its south, and Chester County to its southwest. The county was created on September 10, 1784, out of land originally part of Philadelphia County. The first courthouse was housed i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Mountain (Eastern Pennsylvania)
South Mountain is a colloquial name applied to an Appalachian Mountain range extending north and northeast along the south side of Lebanon Valley to the Lehigh Valley region of eastern Pennsylvania. South Mountain includes the southernmost cluster of peaks that straddle Berks, Lancaster, and Lebanon counties and the northernmost end of the ridge on which Lehigh University is built, in Bethlehem in the Lehigh Valley. The mountain borders Emmaus just south of Allentown and comprises a ridge of low mountains passing east of Reading, and then extends due west. South Mountain is a continuation of the New England Province and is the southern end of the Hudson Highlands.Sevon, W.D. (2000). Physiographic Provinces of Pennsylvania, Map 13. Pennsylvania Geologic Survey. Harrisburg, PA. The mountain is a core geographic feature throughout much of the Pennsylvania side of the Lehigh Valley. The mountain is called the Reading Prong by geologists. Unlike Blue Mountain to its north, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue Mountain (Pennsylvania)
Blue Mountain, Blue Mountain Ridge, or the Blue Mountains of Pennsylvania, is a ridge of the Appalachian Mountains in eastern Pennsylvania. Forming the southern and eastern edge of the Ridge-and-Valley Appalachians physiographic province in Pennsylvania, Blue Mountain extends from the Delaware Water Gap on the state's border with New Jersey in eastern Pennsylvania to Big Gap in Franklin County, Pennsylvania, Franklin County in south-central Pennsylvania at its southwestern end. Views of Blue Mountain dominate the southern tier of most eastern and central Pennsylvania counties, providing an ever-visible backdrop cutting across the northern or western horizon. Most transport corridors and road beds piercing the barrier necessarily pass through large water gaps, including (west to east) the Susquehanna River, Susquehanna, Schuylkill River, Schuylkill, Lehigh River, Lehigh and Delaware River valleys or wind gaps, low gaps in the ridge caused by ancient watercourses. The barrier ridg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Appalachian Mountains
The Appalachian Mountains, often called the Appalachians, are a mountain range in eastern to northeastern North America. The term "Appalachian" refers to several different regions associated with the mountain range, and its surrounding terrain. The general definition used is one followed by the United States Geological Survey and the Geological Survey of Canada to describe the respective countries' Physiographic region, physiographic regions. The U.S. uses the term Appalachian Highlands and Canada uses the term Appalachian Uplands; the Appalachian Mountains are not synonymous with the Appalachian Plateau, which is one of the provinces of the Appalachian Highlands. The Appalachian range runs from the Newfoundland (island), Island of Newfoundland in Canada, southwestward to Central Alabama in the United States; south of Newfoundland, it crosses the 96-square-mile (248.6 km2) archipelago of Saint Pierre and Miquelon, an overseas collectivity of France, meaning it is technica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steel
Steel is an alloy of iron and carbon that demonstrates improved mechanical properties compared to the pure form of iron. Due to steel's high Young's modulus, elastic modulus, Yield (engineering), yield strength, Fracture, fracture strength and low raw material cost, steel is one of the most commonly manufactured materials in the world. Steel is used in structures (as concrete Rebar, reinforcing rods), in Bridge, bridges, infrastructure, Tool, tools, Ship, ships, Train, trains, Car, cars, Bicycle, bicycles, Machine, machines, Home appliance, electrical appliances, furniture, and Weapon, weapons. Iron is always the main element in steel, but other elements are used to produce various grades of steel demonstrating altered material, mechanical, and microstructural properties. Stainless steels, for example, typically contain 18% chromium and exhibit improved corrosion and Redox, oxidation resistance versus its carbon steel counterpart. Under atmospheric pressures, steels generally ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
