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I will answer you, presuming that you are
seeking an answer
suitable for high school students.
Forget the curvature of space part, because
that has not yet been
fitted into quantum theory. So your question is
intelligent because it
probes an area of physics that presently is only
dimly understood. It
nevertheless is directed to an aspect of the force
laws that are really
understood very well.
The gravitational force, like electrical
force, can be divided
into two parts: one part is time dependent, has a
corresponding flux
vector (transporting energy), and can be quantized.
The other part
is time independent and has nothing to do with
energy transport - this
part, accordingly, can not be quantized. In gravity
the time independent
force corresponds to the 1/r^2 law of Newton (and,
incidentally, some
predecessors). In electricity the time independent
part corresponds to
the coulomb field.
"Time independence" is a relativistically
ambiguous expression.
What I mean is, time independent when viewed in the
frame of the source
of the field (mass, for gravity, charge, for
electricity). It is as
though the time independent field, and its
accompanying source, have
(and will) exist together through all eternity.
Note that both of the examples, in their
quantum aspects, involve
the transport of massless bosons. The arguments
that I have given you
would not apply, for marvelous technical reasons, to
fields involving the
exchange of massive bosons.
Pedants may add many more details, but I
think that this addresses
the nub of your question.
Regards,
Jack
Adam was by constitution and proclivity a scientist;
I was the same, and
we loved to call ourselves by that great name...Our
first memorable
scientific discovery was the law that water and like
fluids run downhill,
not up.
Mark Twain, <Extract from
Eve's Autobiography>
On Fri, 28 Apr 2000, Zach Wolff wrote:
I may be completely missing the point here, but Ifeel
like this answer has strayed from the originalmy
question. The answer here talks about a static
gravitational field as a curvature of space. In
limited understanding this is a relativisticparticles.
description of the force, as opposed to a quantum
description in which forces are mediated by
If this is not true, what am I missing? If thisis
true, is there any way a force mediated by aparticle
(or particles) could be created by an interactionat
between something inside the event horizon and
something outside the event horizon?
Zach
--- Jack Uretsky <jlu@HEP.ANL.GOV> wrote in part:
What's going on is that you have to look
largethe entire universe,
not just the black hole (something like donuts).
The Schwarzchild
geometry is the geometry of a universe with a
observemass at the center.
The static gravitational effects that we can
theare embedded in the
metric (more strictly, the curvature) outside of
largerhorizon. In the
usual metric, the gravitational effects get
theand larger as we
approach the black hole until they blow up at
thehorizon, where there is
a coordinate singularity. So the answer is that
partmass at the center
of the black hole has distorted all of space;
Jackof that distortion is
the event horizon that bounds the black hole.
Regards,
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