FACTOID # 48: Many Americans live alone - the United States leads the world in one person households.
 
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Encyclopedia > Static spacetime

In general relativity, a spacetime is said to be static if it admits a global, nowhere zero, timelike hypersurface orthogonal Killing vector field. Every static spacetime is stationary. In a static spacetime, the metric components may be chosen so that they are all independent of the time coordinate. It is in this sense that a static spacetime derives its name, as the geometry of the spacetime does not change. An example of a static spacetime is the (exterior) Schwarzschild solution. Two-dimensional visualisation of space-time distortion. ... World line of the orbit of the Earth depicted as a circle in two spatial dimensions X and Y (the plane of the Earth orbit) and a time dimension, Z, making the circle appear as a helix. ... In physics and mathematics, Minkowski space (or Minkowski spacetime) is the mathematical setting in which Einsteins theory of special relativity is most conveniently formulated. ... In mathematics, a Killing vector field is a vector field on a Riemannian manifold that preserves the metric. ... Introduction In Einsteins theory of general relativity, the Schwarzschild metric is the most general static, spherically symmetric solution of the vacuum field equations. ...


  Results from FactBites:
 
static: Definition and Much More From Answers.com (747 words)
In literature, static mean "not changing"; as in the term "static character", or, a character who does not significantly change over the course of the work.
In the context of programming languages, static typing is a particular way the syntax of the language associates identifiers with data, in particular the type of the data.
In reference to linking, static means that identifiers are associated with data or sections of code during linking, as opposed to dynamic linking in which these associations may be formed at runtime.
  More results at FactBites »


 

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