SEPARATION

'Separation' may refer to a several different subjects:

★ In chemistry, 'separation' refers to separation processes.

★ In Gemology, separation refers to the identification process criteria of species of minerals, of treatments made to these minerals, and of natural or synthetic origin.

★ In landscaping and architecture, a wall or ditch that divides a space is sometimes called a 'separation'.

★ In interpersonal relationships, 'separation' usually refers a married couple ceasing to live together, but without getting a divorce.

★ Legal separation is a legal status where married couples may disentangle their finances without divorce.

★ In the United States military, separation refers to the process by which a service member leaves active duty.

★ In audio mastering, a ''separation'' is a single track containing one or more major song elements. When all ''separations'' are recombined, the 2-track mix is recreated (see Separation mastering).

★ In descriptive set theory, the separation property for a pointclass allows separating two disjoint sets in the pointclass by another set in the same pointclass.

★ In religious thought, separation becomes the basis of the all-important ''pain of separation'' in life

★ In topology, the separation axioms are properties that topological spaces may have which tell roughly how many open sets can contain two points.

★ In topology, two sets are called separated if each is disjoint from the other's closure.

★ In fluid mechanics, 'separation' refers to a phenomenon where a fluid flows along a surface for some distance, but due to adverse pressure gradients, flows away from the surface rather than following it further. In other words, it is what happens when the Coanda Effect can no longer make a fluid "stick" to a surface. Examples are a wing stall, and the separation along the sides of bluff bodies which lead to wake formation and pressure drag.

★ Separation (EP), an extended-play record by Halou.

★ In air traffic control, controllers apply separation rules to minimise the risk of collision between aircraft in flight.

★ Separation of church and state, the idea that religion and government functions should be separate.