Chemical element (85.6 °F), respectively. Melting and boiling points, typically expressed in degrees Celsius at a pressure of one atmosphere, are commonly used in characterizing the various elements. While known for most elements, either or both of these measurements is still undetermined for some of the radioactive elements available in only tiny quantities. Since helium remains a liquid even at absolute zero at atmospheric pressure, it has only a boiling point, and not a melting point, in conventional presentations. The density at selected standard temperature and pressure (STP) is frequently used in characterizing the elements. Density is often expressed in grams per
Boiling Point (1998 miniseries) participation in the dinner made at the Palace of Versailles on 11 July 1998 to celebrate the closing of the 1998 World Cup and features young chefs Marcus Wareing and Mark Sargeant at the early stages of their careers, as well as mentor Marco Pierre White. "Boiling Point" was the first mass exposure of Ramsay to television audiences, revealing his highly driven, impatient and hot tempered personality which has become his trademark. The series was followed-up in 2000 by a six-part LWT miniseries, "Beyond Boiling Point", again produced by Graham (this time with Paul Denchfield and Lucy Leveugle) for LWT,