Atmosphere (unit)

The standard atmosphere (symbol: atm) is a unit of pressure defined as 101325 Pa (1.01325 bar). It is sometimes used as a reference or standard pressure.

History

In 1954 the 10th Conférence Générale des Poids et Mesures (CGPM) adopted standard atmosphere for general use and affirmed its definition of being precisely equal to 1,013,250 dynes per square centimetre (101325 Pa). This value was intended to represent the mean atmospheric pressure at mean sea level at the latitude of Paris, France, and does reflect the mean sea level pressure for many industrialized nations that are at broadly similar latitudes.

In chemistry and in various industries, the reference pressure referred to in “Standard Temperature and Pressure” (STP) was commonly 1 atm (101.325 kPa) but standards have since diverged; in 1982, the International Union of Pure and Applied Chemistry (IUPAC) recommended that for the purposes of specifying the physical properties of substances, “standard pressure” should be precisely 100 kPa (1 bar).

United States

Coordinates: 40°N 100°W / 40°N 100°W / 40; -100

The United States of America (USA), commonly referred to as the United States (U.S.) or America, is a federal republic composed of 50 states, a federal district, five major territories and various possessions. The 48 contiguous states and Washington, D.C., are in central North America between Canada and Mexico. The state of Alaska is in the northwestern part of North America and the state of Hawaii is an archipelago in the mid-Pacific. The territories are scattered about the Pacific Ocean and the Caribbean Sea. At 3.8 million square miles (9.842 million km²) and with over 320 million people, the country is the world's third or fourth-largest by total area and the third most populous. It is one of the world's most ethnically diverse and multicultural nations, the product of large-scale immigration from many countries. The geography and climate of the United States are also extremely diverse, and the country is home to a wide variety of wildlife.

USA (disambiguation)

USA or U.S.A. usually refers to the United States of America, a country in North America.

USA or U.S.A. may also refer to:

Places

Business

Universities

Other uses

USA Network

USA Network (commonly referred to as simply "USA") is an American basic cable and satellite television channel that is owned by the NBCUniversal Cable division of NBCUniversal, itself a subsidiary of Comcast. Once a minor player in basic cable, the network has steadily gained popularity due to its original programming; USA also broadcasts syndicated reruns of current and former "network television" (i.e., broadcast) series and theatrically-released feature films, as well as limited sports programming.

As of July 2015, USA Network is available to approximately 95.567 million pay television households (82.1% of households with at least one television set) in the United States.

History

Paramount and Universal ownership

USA Network originally launched on September 22, 1977 as the Madison Square Garden Network (not to be confused with the New York City regional sports network of the same name). The network was founded by cable provider UA-Columbia Cablevision and Kay Koplovitz. The channel was one of the first national cable television channels, using satellite delivery as opposed to microwave relay to distribute its programming to cable systems. Initially, the network ran a mix of college and less well-known professional sports, similar to those found during the early years of ESPN. The channel began its broadcast day after 5:00 p.m. Eastern Time on weekdays and 12:00 p.m. Eastern Time on weekends.

Metro (magazine)

Metro is a glossy monthly lifestyle magazine published in New Zealand. It has a strong focus on the city of Auckland, with reportage of issues and society. The magazine was first published independently by Warwick Roger and Bruce Palmer.

History

Metro was established in 1981. The debut of the magazine coincided with the rapid expansion of the New Zealand economy that occurred from 1984, following the election of the Fourth Labour Government, who implemented widespread neoliberal deregulation and economic reform. The increased access to imported luxury goods made Metro magazine an attractive media environment for advertisers.

Metro magazine's success led to the launch of a sister title North & South, edited by Robyn Langwell. This publication took a wider look at New Zealand regional stories. Langwell was editor of North & South until June 2007. A third title, women's interest magazine More, was launched before the stable was bought by ACP Media, an Australian publishing consortium.

Metro (Oregon regional government)

Metro is the regional government for the Oregon portion of the Portland metropolitan area. It is the only directly elected regional government and metropolitan planning organization in the United States. Metro is responsible for managing the Portland region's solid waste system, coordinating the growth of the cities in the region, managing a regional parks and natural areas system, and overseeing the Oregon Zoo, Oregon Convention Center, Portland's Centers for the Arts, and the Portland Expo Center.

History and evolution

Metro in its current form evolved from Columbia Region Association of Governments (CRAG) (1966–1978) and a predecessor Metropolitan Service District (MSD) (1957–1966). Measure 6, a 1978 statewide ballot measure established Metro, effective January 1, 1979. In 1992 voters approved a home-rule charter that identified Metro's primary mission as planning and policy making to preserve and enhance the quality of life and the environment, and changed the agency's name to Metro. This charter was amended in November 2000 when Ballot Measure 26-10 was passed by voters, although the principal changes did not take effect until January 2003. The measure eliminated the Executive Office and reorganized executive staff. The position of Executive Officer, elected by voters, was merged with that of council presiding officer, chosen annually by fellow Metro councilors, creating the position of Metro council president. Metro's first president was David Bragdon, who served in the office from January 2003 until September 2010.

Metro (Dutch newspaper)

Metro (Dutch pronunciation: [ˈmeːtroː]) is a free Dutch newspaper, distributed daily since 1999, mostly to commuters in high-traffic areas. Formerly owned by Metro International, in August 2012 the paper was taken over by the Telegraaf Media Group (TGM), which also owns the only other free Dutch newspaper, Spits.

History

Metro follows the format of other free newspapers by Metro International, the first one of which appeared in Stockholm in 1995. The Dutch Metro was the fourth of those, and first appeared on 21 June 1999; it is published five days a week, and for a brief period had a Saturday edition as well. Separate editions for Rotterdam and Amsterdam appeared in October 2004 and April 2005. The business model is the same as that of the other Metro International publications: news is reported in a relatively brief fashion, all income is derived from advertisements, and the papers are distributed mainly in train stations, besides in supermarkets, shopping malls, universities, and parking garages. In 2004 it began distribution in post offices and McDonalds restaurants.