Pressure

Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure (also spelled gage pressure) is the pressure relative to the ambient pressure.

Various units are used to express pressure. Some of these derive from a unit of force divided by a unit of area; the SI unit of pressure, the pascal (Pa), for example, is one newton per square metre; similarly, the pound-force per square inch (psi) is the traditional unit of pressure in the imperial and US customary systems. Pressure may also be expressed in terms of standard atmospheric pressure; the atmosphere (atm) is equal to this pressure and the torr is defined as ¹⁄₇₆₀ of this. Manometric units such as the centimetre of water, millimetre of mercury and inch of mercury are used to express pressures in terms of the height of column of a particular fluid in a manometer.

Definition

Pressure is the amount of force acting per unit area. The symbol for pressure is p or P. The IUPAC recommendation for pressure is a lower-case p. However, upper-case P is widely used. The usage of P vs p depends on the field in which one is working, on the nearby presence of other symbols for quantities such as power and momentum, and on writing style.

Pressure (disambiguation)

Pressure is an effect which occurs when a force is applied on a surface.

Pressure also may refer to:

Music

Entertainment

Other uses

See also

Billy Ocean

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Billy Ocean (born Leslie Sebastian Charles; 21 January 1950) is a Trinidadian-born English recording artist who had a string of R&B international pop hits in the 1970s and 1980s. He was the most popular British R&B singer-songwriter of the early to mid-1980s. After scoring his first four UK Top 20 successes, seven years passed before he accumulated a series of transatlantic successes, including three U.S. number ones. In 1985, Ocean won the Grammy Award for Best Male R&B Vocal Performance for his worldwide hit, "Caribbean Queen", and in 1987 was nominated for the Brit Award for Best British Male Artist.

In 2002, the University of Westminster, London, awarded Ocean an honorary doctorate of music. In 2010, Ocean was presented with the Lifetime Achievement Award at the MOBO Awards. On 29 July 2011, Ocean became a Companion of the Liverpool Institute for Performing Arts, presented to him by Sir Paul McCartney. He is a member of the Rastafari movement.

Nicholas

Nicholas or Nikolas or Nicolas or Nickolas is a male given name, derived from the Greek name Νικόλαος (Nikolaos), a compound of νίκη nikē 'victory' and λαός; laos 'people', that is, victory of the people. The name became popular through Saint Nicholas, Bishop of Myra in Lycia, the inspiration for Santa Claus. The customary English version of spelling "Nicholas", using an "h", first came into use in the 12th century and has been firmly established since the Reformation, though "Nicolas" is occasionally used.

In the United States, Nicholas – and its variations – was the 17th most popular male name given to babies in 2006. Roughly 0.7151% of the baby boys born that year, or 15,414, were given that name. It is decreasing in popularity, from a high in 1997, when 27,248 males in the United States were given the name Nicholas. That year was the most popular year for Nicholas since 1880, when U.S. records were kept for given names.

The Eastern Orthodox Church, the Roman Catholic Church, and the Anglican Churches celebrate Saint Nicholas every year on December 6, which is the name day for "Nicholas". In Greece, the name and its derivatives are especially popular in maritime regions, as St. Nicholas is considered the protector saint of seafarers.

List of The Walking Dead cast members

The Walking Dead is an American television drama series created and produced by Frank Darabont. It is based on the eponymous comic book series by Robert Kirkman. The following is a list of characters from The Walking Dead television series. Although some characters appear in both places, the continuity of the television series is not shared with the original comic book series.

Main cast appearances

The following cast members have been credited as main cast in the opening credits or "also starring":

Main characters

Supporting cast appearances

Nicholas (disambiguation)

Nicholas is a male given name.

Nicholas may also refer to: