Re: "Is There a Force of Gravity?"
- From: dubious@xxxxxxxxxxxxxxxxxxxxxxxxxxxx (Bilge)
- Date: Mon, 24 Oct 2005 17:23:30 GMT
Daniel Weston:
>It is often stated here that gravitation and acceleration are the same.
By whom?
>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.
Then why are double blind experiments considered the most
scientifically rigorous?
>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?
Come back when you've studied enough general relativity to post
an intelligent opinion.
>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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