From: Paul Grant (shade999@optonline.net)
Date: Fri Jul 11 2003 - 21:58:06 MDT
Well, the frame dragging phenomenon found in galactic arm structures is
certainly an indication that gravity propagates at speed of light or
thereabouts. On a different note, keep in mind that phenomena like
supernova would not form black holes as they do if gravity did not
travel in wave fronts at a finite velocity. If gravity propagated
instantaneously, then massive stars would just magically turn into black
holes without all the messy explosive effects.
-- depends on whether or not gravity is limited by time... or rather,
the resolution of time...
extend your argument one step further and say that instead of
supernova's collapsing, why
not the final state of the universe?
imho, there's nothing to say that within each step of time, gravity is
not affecting everything
simoultaneously... rather, that the effects (supernova, universe
collapsing/expanding) of gravity
take more than one time frame...
its like TRUE quantum computing (not the stuff there working on now,
qubits etc); if you could
build a computer that mapped the existing quantum rules of the universe
within a static shell
(thus preventing the containing universe from interfering with the
calculation), there's absolutely
no reason why you couldn't slurp an infinity in a timestep... it would
fundamentally break Turings
theory of computation, in that each step of an algorithm could take an
infinite amount of time,
but relative to our frame of reference, finish in a single step....
really neat if you ask me :)
of course, try putting it in practice...
omard-out
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