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Topic: Spacelike


In the News (Fri 1 Jan 10)

  
  Time Travel and Modern Physics
That is to say, they have made it very plausible that, in the billiard ball wormhole case, the time travel structure of such a wormhole space-time does not result in constraints on states on spacelike surfaces in the non-time travel region.
But one might still expect that there should be no constraints on states on a spacelike surface, provided one keeps the surface ‘small enough’.
Thus the reason why the global time travel properties of the counterfactual space-time have to be significantly different from the actual space-time is not that there are problems with metric singularities or alterations in the metric that force significant global changes when we go to the counterfactual matter distribution.
plato.stanford.edu /entries/time-travel-phys   (12645 words)

  
 Determinism in Reformed Theology, Calvinism
Einsteinian diagrams of spacetime as a 4-dimensional reference frame were described in the early 1900s, as was much of James' writing.
  Perhaps the idea of a 4-dimensional block universe (time as a spacelike dimension) was widespread in the late 1800s.
James decided his first freewill act would be to believe in metaphysically free will -- in opposition to his father's "iron block universe Calvinism".
www.egodeath.com /DeterminismReformedTheolCalvinism.htm   (9134 words)

  
 Albert Einstein as a Philosopher of Science - Physics Today December 2005
Few are aware that Einstein repudiated the paper soon after publication, writing to Schrödinger in June of 1935 that the paper was actually written by Podolsky "for reasons of language," and that he was unhappy with the result because "the main point was buried by excessive formalism."
The argument Einstein intended starts from an assumption that he called "the separation principle." Spatially separated systems have independent realities, and relativistic locality precludes superluminal influences between spacelike separated measurement events.
Therefore quantum mechanics must be incomplete, because it assigns different wavefunctions, hence different states, to one of two previously interacting systems, depending on what parameter one chooses to measure on the other system.
www.physicstoday.org /vol-58/iss-12/p34.html   (4881 words)

  
 Top 20 Encyclopedia
Many thought the jingle and logo were "eerie" because of it's characteristics:
When it starts up, it flashes and eerie spacelike beeps pop in.
A synthesizer (presumably a MOOG) makes a slow violin like sound.
encyc.connectonline.com /index.php/WGBX   (891 words)

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