The meridian 80° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America, the Atlantic Ocean, the Caribbean Sea, Central America, South America, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole.
|Co-ordinates||Country, territory or sea||Notes|
|Canada||Nunavut — Ellesmere Island|
|Jones Sound||Passing just west of Coburg Island, Nunavut, Canada (at )|
|Canada||Nunavut — Devon Island and Philpots Island|
|Canada||Nunavut — Bylot Island|
|Canada||Nunavut — Ragged Island and Baffin Island|
|Murray Maxwell Bay|
|Canada||Nunavut — Jens Munk Island|
|Foxe Channel||Passing just east of Southampton Island, Nunavut, Canada (at )|
|Canada||Nunavut — Mansel Island|
|Canada||Nunavut — Gilmour Island|
|Hudson Bay||Passing just west of Split Island, Nunavut, Canada|
|Canada||Nunavut — Kugong Island and Flaherty Island|
|Canada||Nunavut — North Twin Island|
|James Bay||Passing just west of South Twin Island, Nunavut, Canada (at )|
|United States||Pennsylvania — passing through Pittsburgh (at )|
West Virginia — from
Virginia — from
North Carolina — from
South Carolina — from , passing through Charleston (at )
|Atlantic Ocean||Passing just east of Palm Beach, Florida, United States (at )|
Passing through the Cay Sal Bank atoll, Bahamas (at )
|Cayman Islands||Island of Little Cayman|
|Gulf of Panama|
|Panama||Passing through the tip of the Azuero Peninsula|
|Ecuador||The mainland, Puná Island, and the mainland again|
Lambayeque Region — from
|Pacific Ocean||Passing close between the Desventuradas Islands, Chile (at )|
Passing some distance between the Juan Fernández Islands, Chile (at )
|Antarctica||Defines the western limit of British Antarctic Territory, claimed by United Kingdom|
Passes through Antártica Chilena Province, claimed by Chile
The meridian 100° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.
The 100th meridian east forms a great circle with the 80th meridian west.1760s
The 1760s decade ran from January 1, 1760, to December 31, 1769.1767
was a common year starting on Thursday of the Gregorian calendar and a common year starting on Monday of the Julian calendar, the 1767th year of the Common Era (CE) and Anno Domini (AD) designations, the 767th year of the 2nd millennium, the 67th year of the 18th century, and the 8th year of the 1760s decade. As of the start of 1767, the Gregorian calendar was
11 days ahead of the Julian calendar, which remained in localized use until 1923.79th meridian west
The meridian 79° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America, the Atlantic Ocean, the Caribbean Sea, Central America, South America, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole.
The 79th meridian west forms a great circle with the 101st meridian east.80th meridian
80th meridian may refer to:
80th meridian east, a line of longitude east of the Greenwich Meridian
80th meridian west, a line of longitude west of the Greenwich Meridian81st meridian west
The meridian 81° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America, the Atlantic Ocean, the Caribbean Sea, Central America, the Pacific Ocean, South America, the Southern Ocean, and Antarctica to the South Pole.
The 81st meridian west forms a great circle with the 99th meridian east.Pittsburgh
Pittsburgh ( PITS-burg) is a city in the Commonwealth of Pennsylvania in the United States, and is the county seat of Allegheny County. As of 2017, a population of 305,704 lives within the city limits, making it the 63rd-largest city in the U.S. The metropolitan population of 2,353,045 is the largest in both the Ohio Valley and Appalachia, the second-largest in Pennsylvania (behind Philadelphia), and the 26th-largest in the U.S.
Pittsburgh is located in the south west of the state, at the confluence of the Allegheny, Monongahela, and Ohio rivers, Pittsburgh is known both as "the Steel City" for its more than 300 steel-related businesses and as the "City of Bridges" for its 446 bridges. The city features 30 skyscrapers, two inclined railways, a pre-revolutionary fortification and the Point State Park at the confluence of the rivers. The city developed as a vital link of the Atlantic coast and Midwest, as the mineral-rich Allegheny Mountains made the area coveted by the French and British empires, Virginians, Whiskey Rebels, and Civil War raiders.Aside from steel, Pittsburgh has led in manufacturing of aluminum, glass, shipbuilding, petroleum, foods, sports, transportation, computing, autos, and electronics. For part of the 20th century, Pittsburgh was behind only New York and Chicago in corporate headquarters employment; it had the most U.S. stockholders per capita. America's 1980s deindustrialization laid off area blue-collar workers and thousands of downtown white-collar workers when the longtime Pittsburgh-based world headquarters moved out. This heritage left the area with renowned museums, medical centers, parks, research centers, and a diverse cultural district.Today, Google, Apple Inc., Bosch, Facebook, Uber, Nokia, Autodesk, Microsoft and IBM are among 1,600 technology firms generating $20.7 billion in annual Pittsburgh payrolls. The area has served as the long-time federal agency headquarters for cyber defense, software engineering, robotics, energy research and the nuclear navy. The area is home to 68 colleges and universities, including research and development leaders Carnegie Mellon University and the University of Pittsburgh. The nation's eighth-largest bank, eight Fortune 500 companies, and six of the top 300 U.S. law firms make their global headquarters in the area, while RAND, BNY Mellon, Nova, FedEx, Bayer and NIOSH have regional bases that helped Pittsburgh become the sixth-best area for U.S. job growth.In 2015, Pittsburgh was listed among the "eleven most livable cities in the world"; The Economist's Global Liveability Ranking placed Pittsburgh as the first- or second-most livable city in the United States in 2005, 2009, 2011, 2012 and 2014. The region is a hub for Leadership in Energy and Environmental Design and energy extraction.In 2019, Pittsburgh was deemed “Food City of the Year” by the San Francisco-based restaurant and hospitality consulting firm af&co. Many restaurants were mentioned favorable, among them were Superior Motors in Braddock, Driftwood Oven in Lawrenceville, Spork in Bloomfield, Fish nor Fowl in Garfield and Bitter Ends Garden & Luncheonette in Bloomfield.Polar motion
Polar motion of the Earth is the motion of the Earth's rotational axis relative to its crust. This is measured with respect to a reference frame in which the solid Earth is fixed (a so-called Earth-centered, Earth-fixed or ECEF reference frame). This variation is only a few meters.