Phase diagram can be constructed that show the effect of more than two variables on the phase of a substance. Phase diagrams can use other variables in addition to or in place of temperature, pressure and composition, for example the strength of an applied electrical or magnetic field, and they can also involve substances that take on more than just three states of matter. One type of phase diagram plots temperature against the relative concentrations of two substances in a mixture called a "binary phase diagram", as shown at right. Such a mixture can be either a solid solution, eutectic or peritectic,
Happiness is a cigar called Hamlet Happiness is a cigar called Hamlet "Happiness is a cigar called Hamlet" is one of the best remembered British advertising campaigns for a tobacco product. It was a long-running campaign for Hamlet Cigars, lasting on television until all tobacco advertising on television was banned in the UK in 1991. They returned in cinemas in 1996, continuing there until 1999, with the final commemorative advert and the modified tagline, "Happiness will always be a cigar called Hamlet." Commercials used an excerpt from a jazz rendition of Bach's Air on the G String, played by Jacques Loussier and his trio, which is