From: Damien Broderick (damienb@unimelb.edu.au)
Date: Tue Jun 10 2003 - 22:36:55 MDT
Hal hasn't responded to my comment on his post, probably because he felt
his reply to Randall^2 sufficed. I'm not sure it did. I wrote:
>>As the star passes by an observer, the field points to the current
>>position of the star. That's because the field is moving uniformly with
>>the star. In the case of a wooden framework, the beams would point
>>directly at where the star is right now, because that is how the frame is
>>built.
>when I tried building one, my
>timber framework started to bend at the far ends, and eventually snapped
>off. I am making a serious objection here.
As I understand it, frame dragging near a rapidly spinning black hole is
due precisely to such a lag. And on a more prosaic level, magnetic field
lines from the surface of the Sun get snarled and tangled as a result of
rotation.
Damien Broderick
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