Albert Einstein's stated and demonstrated goal was the
formulation of field equations along the same lines as
Maxwell's but with more generality than Maxwell's with
the hope of including the force of gravity and inertia.

Did he succeed ?
In demonstrating that gravity and inerta are related
to electrical and magnetic effects and are subject
to the same delays and laws of conservation. The
prediction, in the Lorenz gauge, of gravity's effict on
nuclear resonance (Pound-Snider, GPS presets )
seems a quantitavive success, even if the sign is reversed.

In demonstrating a qualitative mechanism on par
with that of Maxwell's equations for light? If Tajmar
and de Matos is repeated and GP-B doesn't frame-drag,
then we'll have to conclude Einstein overlooked a
plausible mechanism, known in his career. (London, Casimir)
That would come as no surprise, as he overlooked the mechanism
of observer dependent light speed, preferring a mathematical
absurdity to leaving an open question. (P. Langevin)

Sue...

Sue... wrote:
Albert Einstein's stated and demonstrated goal was the
formulation of field equations along the same lines as
Maxwell's but with more generality than Maxwell's with
the hope of including the force of gravity and inertia.

Did he succeed ?
In demonstrating that gravity and inerta are related
to electrical and magnetic effects and are subject
to the same delays and laws of conservation. The
prediction, in the Lorenz gauge, of gravity's effict on
nuclear resonance (Pound-Snider, GPS presets )
seems a quantitavive success, even if the sign is reversed.

In demonstrating a qualitative mechanism on par
with that of Maxwell's equations for light? If Tajmar
and de Matos is repeated and GP-B doesn't frame-drag,
then we'll have to conclude Einstein overlooked a
plausible mechanism, known in his career. (London, Casimir)
That would come as no surprise, as he overlooked the mechanism
of observer dependent light speed, preferring a mathematical
absurdity to leaving an open question. (P. Langevin)

Sue...

Recent experimental results on the gravitomagnetic London
moment tend to demonstrate that gravitational dipolar type radiation
associated with the Einstein-Maxwell equations is real. This implies
that Maxwellian gravity is not only an approximation to the complete
theory, but may indeed reveal a new aspect of gravitational
phenomena associated with a vectorial spin 1 gravitational
boson, which we might call the graviphoton. As an
example, a fully relativistic modified theory of gravity
called scalar vector tensor gravity would duly take into account
this new side of gravity. In the following we will
therefore use the term graviphoton for studying the Proca type
character of gravity and its consequences on coherent matter.
The field equations for massive linearized gravity are given by11:

http://arxiv.org/abs/gr-qc/0603032