Quote:
Originally Posted by Robh
Point 4. Aberration.
Consider a radial line L, from the Earth to the Sun.
The Sun acts as a shield absorbing particles behind it along L. At any point in orbit, the Earth is pushed along L towards the Sun. As the Earth moves a small distance in this orbit, the particles pushing along L have a fairly instantaneous effect.
However, because of the larger distance to the Sun, the effect of shielding of particles by the Sun along the new line L will take considerably longer to influence the Earth at its new position i.e. the shielding is reduced. The net effect is to accelerate the Earth away from the Sun.
Regards, Rob
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Are you saying that gravity takes a certain time to reach us from the Sun? It does as far as I know.. same speed as C they say and that sounds reasonable.
Maybe you are on to something here..the Moon is moving away from Earth so I believe... is this the sort of effect you describe?
alex
