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Old 14-December-2004, 10:42 AM
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Quote:
Originally Posted by Demigrog
Quote:
Originally Posted by papageno
Quote:
Originally Posted by Jerry
Most of this evidence is based upon experiments in our local framework,
Since we are observing the probes from Earth, what would that change?
Because the inertial field strength would be almost uniform in the area of Earth, so experiments would not detect a variable G.
What is this "inertial field"?
Also, a variable G would affect the trajectories of objects. Why wouldn't we be able to detect this effect?

Quote:
Originally Posted by Demigrog
Quote:
Originally Posted by papageno
Quote:
Originally Posted by Jerry
The sign is not wrong (and I was joking about Titan being three times lighter). The anomalous acceleration of Pioneer 10 & 11 is towards the Sun, and this is consistent with a decrease in the momentum of the probes moving away from the solar system.
And on what basis do you exclude a force that has not been accounted for?
Such as? There have been numerous failed attempts to explain the acceleration (already thoroughly discussed) with known phenomena. If you’re going to consider unknown forces, Jerry’s is as good as any.
It is not.
Assuming a variable G goes against all the experimental evidence we have about gravity.
It is more likely that there is something that we do not see or did not take into account properly, providing an additional force.


Quote:
Originally Posted by Demigrog
Quote:
Originally Posted by papageno
Quote:
Originally Posted by Jerry
There is a differential in the “inertial mass” between the side of the planet facing the sun, and the side facing away form it.
Why?
Obviously, the hypothetical inertial field is very slightly stronger on the side closer to the Sun. However, does this not contradict the notion mentioned above, that the field is uniform enough not to affect experiments showing a constant G on Earth? The effect is probably lost in measurement error.
"Obviously"?
Also, if there is such a differential, wouldn't we observe the effect on the Moon's orbit, or the orbits of the artifical satellites?
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