Einstein first quested to fulfil Mach's principle in 1912 (on the basis
of a then-scalar theory of gravity).

He asked (in the paper's title), "Gibt es eine Gravitationswirkung, ah
to Hell with it

or in English, "Is there a Gravitational Action which is the Analog of
the Electrodynamic Induction Action?"

Einstein considers a Spherical shell of mass M (big!) and radius R, and
a test mass m at the center. He concludes that the mere presence of M
increases m by GM/Rc^2 (a result since dismissed by Brans as an
illusionary coordinate effect). Einstein also shows that an
acceleration a of M induces an acceleration of m of magnitude
3GMa/2Rc^2. Both results are very similar to those derived in his
final gravitational theory, the accelerational parts of which are
affirmed by by post-Brans Machians.

Now, Einstein noted that the induced acceleration of m is in the SAME
direction as that of M. This is in contradistinction to the case in
electromagnetism, where -- between LIKE charges, the induced
acceleration is in the OPPOSITE direction.

In a recent posting, I suggested that -- if inertia is gravitational in
origin -- the Universe cannot be accelerating due to a predominantly
negative force in Einstein's gravitiational equation, because the
resultant negative cosmic gravitation field would cause inertia to be
negative (masses would accelerate in direction of push).

If gravity indeed acts in a manner analogous to electromagnetism, this
would be fundamental evidence against the postulated acceleration of
the Universe.

Einstein first quested to fulfil Mach's principle in 1912 (on the basis
of a then-scalar theory of gravity).

He asked (in the paper's title), "Gibt es eine Gravitationswirkung, ah
to Hell with it

or in English, "Is there a Gravitational Action which is the Analog of
the Electrodynamic Induction Action?"

Einstein considers a Spherical shell of mass M (big!) and radius R, and
a test mass m at the center. He concludes that the mere presence of M
increases m by GmM/Rc^2 (a result since dismissed by Brans as an
illusionary coordinate effect). Einstein also shows that an
acceleration a of M induces an acceleration of m of magnitude
3GmMa/2Rc^2. Both results are very similar to those derived in his
final gravitational theory, the accelerational parts of which are
affirmed by by post-Brans Machians.

Now, Einstein noted that the induced acceleration of m is in the SAME
direction as that of M. This is in contradistinction to the case in
electromagnetism, where -- between LIKE charges, the induced
acceleration is in the OPPOSITE direction.

In a recent posting, I suggested that -- if inertia is gravitational in
origin -- the Universe cannot be accelerating due to a predominantly
negative force in Einstein's gravitiational equation, because the
resultant negative cosmic gravitation field would cause inertia to be
negative (masses would accelerate in direction of push).

If gravity indeed acts in a manner analogous to electromagnetism, this
would be fundamental evidence against the postulated acceleration of
the Universe.