[dleviwing]

Originally Posted by AntonioLao

r is not a constant. As a position vector its scalar product with absolute acceleration is a constant square of light speed. So if r approaches infinity then the absolute acceleration approaches zero. From Galileo's experiments it was proven that the local acceleration of gravity small g does not depend on the inertial mass m. It depends on the big mass M. more later.

Antonio;
Quite true when talking local environment; big "M" is the important factor. When we start talking the expanse of the universe, little "m" may become more critical to the big “G”.

Originally Posted by Pramod Desai

I understand dleviwing's reply. What I wonder, when I say about the process of cognizance, is how do we guard against the possibility that the very process of investigation affects the reality and we end of with a distorted version of it. And then there are as many versions as are the investigators. But then there is some objective reality otherwise the laws of science as known to us and the working of our lives based on them would not have been functioning. SO where is the catch?

PD;
The academic systems need to be fixed such that they actually teach; they are doing more indoctrination now than teaching.