Mixing It

Mixing It was a radio programme showcasing experimental music. Its original remit was to showcase "crossover" music that blurred the established boundaries between genres. It was originally broadcast as a weekly radio programme on BBC Radio 3 but was axed in 2007 when controller Roger Wright announced a revamped schedule.

The programme has since been broadcast by experimental radio station Resonance FM, where it was first renamed as MIXINGIT. However, the BBC objected as it had trademarked the title. The programme was then temporarily renamed as MyXINGIT. The following week, its new permanent title was announced: Where's The Skill In That? This is a favourite catchphrase of the programme, humorously said by the presenters to be a common reaction at production meetings when one presenter plays music that doesn't go down well with the other.

History

Mixing It was presented by journalist Robert Sandall and musician Mark Russell. It generally lasted around 75 minutes. The first programme was broadcast in 1990, when its regular running time was usually only 45 minutes. Its regular timeslot then was on Monday evenings, and since then it has been broadcast on Saturdays, Sundays, and most recently Fridays. It has been nominated twice for a Sony Award, winning Silver in 1992 for an edition featuring an extended interview with Brian Eno. The show finished after 17 years on air on 9 February 2007 following Radio 3 controller Roger Wright's proposed schedule changes. A campaign by loyal listeners started in early 2007 to save the programme.

Mix

Mix, mixes, mixture, or mixing may refer to:

In mathematics, science, and technology

In electronics and telecommunications

Other uses in mathematics, science, and technology

Mixing (mathematics)

In mathematics, mixing is an abstract concept originating from physics: the attempt to describe the irreversible thermodynamic process of mixing in the everyday world: mixing paint, mixing drinks, etc.

The concept appears in ergodic theory—the study of stochastic processes and measure-preserving dynamical systems. Several different definitions for mixing exist, including strong mixing, weak mixing and topological mixing, with the last not requiring a measure to be defined. Some of the different definitions of mixing can be arranged in a hierarchical order; thus, strong mixing implies weak mixing. Furthermore, weak mixing (and thus also strong mixing) implies ergodicity: that is, every system that is weakly mixing is also ergodic (and so one says that mixing is a "stronger" notion than ergodicity).

Mixing in stochastic processes

Let be a sequence of random variables. Such a sequence is naturally endowed with a topology, the product topology. The open sets of this topology are called cylinder sets. These cylinder sets generate a sigma algebra, the Borel sigma algebra; it is the smallest (coarsest) sigma algebra that contains the topology. Define a function , called the strong mixing coefficient, as

Mixing (physics)

In physics, a dynamical system is said to be mixing if the phase space of the system becomes strongly intertwined, according to at least one of several mathematical definitions. For example, a measure-preserving transformation T is said to be strong mixing if

whenever A and B are any measurable sets and μ is the associated measure. Other definitions are possible, including weak mixing and topological mixing.

The mathematical definitions of mixing are meant to capture the notion of physical mixing. A canonical example is the Cuba libre: suppose that a glass initially contains 20% rum (the set A) and 80% cola (the set B) in separate regions. After stirring the glass, any region of the glass contains approximately 20% rum. Furthermore, the stirred mixture is in a certain sense inseparable: no matter where one looks, or how small a region one looks at, one will find 80% cola and 20% rum.

Every mixing transformation is ergodic, but there are ergodic transformations which are not mixing.