On Mar 6, 11:41 am, Albertito wrote:
There are evidences showing that in Solar system,
the speed of gravity is many orders of magnitude higher
than the speed of light.

No, there is not. Just because you say so doesn't mean it is true.

But, what must we understand
by speed of gravity?. Aetherists often claim that gravity
are longitudinal waves, whereas light are transverse
waves through the aether.

Why even mention this? Ether has been ruled out as a viable concept
EVERY SINGLE TIME for the last hundred and thirty years. Nobody but
cranks in the fringe take ether seriously anymore.

We know that in any medium
longitudinal waves travel faster than transverse waves.

Only if the medium is anisotropic. Where are the calculations in which
you actually derive the things you write?

We can find that longitudinal speed, c_L, and transverse
c_S, in a medium, with Young's modules E, Poison's ratio
v and mass density d_0, are

c_L^2 = (E/d_0(1+v))(1-v)/(1-2v)
c_S^2 = (E/d_0(1+v))(1/2)

Stating the answer without derivation isn't acceptable anywhere, why
do you think we will accept what you write down without
rationalization?

[remaining snipped]