"Daniel Weston" wrote in message
...
I guess there are 2 versions (at least) of Newton's bucket experiment.
The one I had I mind was the experiment of the bucket connected to a
rope, and this twisted rope when released provides torque to the bucket
causing it to spin on its axis.

Question: Is different analysis required between the overhead bucked
rotation, and the spin on a rope experiment?

Newton's version was the twisted rope one. I think that is indeed the best
and simplest one to illustrate "absolute" rotation effects, as the problem
is perfectly symmetrical for the inertial and accelerated frames of
reference.

Harald