Re: "Is There a Force of Gravity?"

It is often stated here that gravitation and acceleration are the same.
This leads to seriously held statements that "gravity is not pulling me
down in my chair, but rather the chair is accelerating up towards me".
This only makes plausible sense if it is agreed that there is no peeking
out the window. IOW the theory depends in part on a stipulated
blindness. This is something that is seldom tolerated in science.

When confronted with real world thought experiments wherein the
statement that gravitation = acceleration is seriously made to appear
bad, defenders seek refuge from the assertion that gravitation =
acceleration, by pointing out that the statement refers only to LOCAL
phenomena. When pressed further it appears that the _dimension_ of the
adjective LOCAL is something a little bigger than a point which itself
is dimensionless. IOW no tests can be performed within the applicable
LOCAL area. (and therefore cannot be disproved)
Is this good science?

I would therefore guess that any hypothetical involving cities on
opposite sides of the earth cannot ever be used to challenge
gravity/acceleration concept of relativity, since relativity has limited
the scope of its statement to a LOCAL dimension.





































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Relevant Pages

  • Re: ABOUT THE EQUALITY OF THE INERTIAL AND GRAVITATIONAL MASS
    ... At page 68 of his book Relativity Einstein writes about the General ... To the lid of the chest is fixed a hook with a rope and by ... because is in a state of acceleration relative to the supposed ... But the force of gravitation exists and without it the man ...
    (sci.physics.relativity)
  • Re: ABOUT THE EQUALITY OF THE INERTIAL AND GRAVITATIONAL MASS
    ...  ARGUMENT FOR THE ASSUMTION OF THE GENERAL POSTULATE OF RELATIVITY. ... To the lid of the chest is fixed a hook with a rope and by ... because is in a state of acceleration relative to the supposed ... But the force of gravitation exists and without it the man ...
    (sci.physics.relativity)
  • Re: THE GENERAL RELATIVITY.
    ... |> At the page 68 of his book Relativity Einstein writes about the General ... |> acceleration, or, what comes to the same thing, on the law of the ... Both GR and Newtonian gravitation are consistent theories. ...
    (sci.physics.relativity)
  • Re: "Gravity"
    ... Allegedly, General Relativity and Special ... fourth spatial dimension! ... Since I wished to understand gravitation, ...
    (sci.physics.particle)
  • Re: THE GENERAL RELATIVITY.
    ... |> At the page 68 of his book Relativity Einstein writes about the General ... |> acceleration, or, what comes to the same thing, on the law of the ... Both GR and Newtonian gravitation are consistent theories. ...
    (sci.physics.relativity)