The boiling point of a substance is the temperature at which the vapor pressure of the liquid equals the environmental pressure surrounding the liquid.

A liquid in a vacuum has a lower boiling point than when that liquid is at atmospheric pressure. A liquid at high-pressure has a higher boiling point than when that liquid is at atmospheric pressure. In other words, the boiling point of a liquid varies depending upon the surrounding environmental pressure. For a given pressure, different liquids boil at different temperatures.

The normal boiling point (also called the atmospheric boiling point or the atmospheric pressure boiling point) of a liquid is the special case in which the vapor pressure of the liquid equals the defined atmospheric pressure at sea level, 1 atmosphere. At that temperature, the vapor pressure of the liquid becomes sufficient to overcome atmospheric pressure and allow bubbles of vapor to form inside the bulk of the liquid. The standard boiling point is now (as of 1982) defined by IUPAC as the temperature at which boiling occurs under a pressure of 1 bar.

Gordon James Ramsay, OBE (born 8 November 1966) is a British chef, television personality and restaurateur. He has been awarded 13 Michelin stars in total and currently holds 12.

Ramsay is known for presenting TV programmes about competitive cookery and food, such as the British series Hell's Kitchen, The F Word, Ramsay's Best Restaurant, and Ramsay's Kitchen Nightmares, along with the American versions of Hell's Kitchen, Kitchen Nightmares, and MasterChef.

Gordon Ramsay was born in Johnstone, Renfrewshire, Scotland, and raised in Stratford-upon-Avon, Warwickshire, England from the age of 5. Ramsay is the second of four children; he has an older sister, Diane, a younger brother, Ronnie, and a younger sister, Yvonne. Ramsay's father Gordon (died 1997) was, at various times, a swimming pool manager, a welder, and a shopkeeper; his mother, Helen Cosgrove, and Yvonne have been nurses. Ramsay has described his early life as "hopelessly itinerant", as his family moved constantly due to the aspirations and failures of his father, who was violent. In 1976, they finally settled in Stratford-upon-Avon where he grew up in the Bishopton area of the town. In past public interviews, Ramsay has declined to describe his father as an alcoholic; however, his autobiography, Humble Pie, describes his early life as being marked by abuse and neglect from this "hard-drinking womaniser". At the age of 16, Ramsay moved out of the family house into a flat in Banbury.

John Carlton 'Jack' Gardiner (8 May 1881–1967) was an Australian rules footballer who played for Carlton and Melbourne in the Victorian Football League (VFL). He then became a successful coach in the Tasmanian Football League.

Gardiner came from a football playing family with his father, John, a Carlton player during the 1870s. Vin Gardiner, his younger brother, also played at both Melbourne and Carlton.

His VFL career, spent mostly as a rover, began with two seasons at his father's club before switching to Melbourne in 1903. He kicked 24 goals in 1904 and was a regular in the Melbourne side until 1907.

The rover spent the 1908 season in Tasmania, as an umpire and coach of the TFL representative team. He returned to the mainland to coach Tasmania at the 1908 Melbourne Carnival and stopped umpiring after that year.

He resumed his playing career in 1909 when he joined Cananore as captain. His tenure included four TFL premierships, including three in a row from 1909 to 1911. Gardiner also captained the state at the 1911 Adelaide Carnival. Appointed Cananore captain-coach following the war, he steered them to more premierships in 1921 and 1922. His final port of call was North Hobart, whom he spent the 1924 and 1925 seasons at before retiring.

Stefani Joanne Angelina Germanotta (/ˈstɛfəniː dʒʌrməˈnɑːtə/ STE-fə-nee jurr-mə-NAH-tə; born March 28, 1986), known by her stage name Lady Gaga, is an American singer and songwriter. Born and raised in New York City, she primarily studied at the Convent of the Sacred Heart and briefly attended New York University's Tisch School of the Arts before withdrawing to focus on her musical career. She began performing in the rock music scene of Manhattan's Lower East Side, and was signed with Streamline Records by the end of 2007. During her employment as a songwriter for the record company, her vocal abilities captured the attention of recording artist Akon, who signed her to his label Kon Live Distribution.

Lady Gaga came to prominence as a recording artist following the release of her debut album The Fame (2008), which was a critical and commercial success that topped charts around the world and included the international number-one singles "Just Dance" and "Poker Face". After embarking on the The Fame Ball Tour, she followed the album with The Fame Monster (2009), which spawned the worldwide hit singles "Bad Romance", "Telephone" and "Alejandro". The album's success allowed her to embark on the eighteen-month long Monster Ball Tour, which later became one of the highest-grossing concert tours of all time. Her most recent album Born This Way (2011) topped the charts of most major markets and generated more international chart-topping singles, including "Born This Way", "Judas" and "The Edge of Glory". Besides her musical career, she involves herself with humanitarian causes and LGBT activism.