- #1
Redhat
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Hi,
I was thinking about an experiment that might demonstrate frame dragging via the equivalence principle.
The apparatus consists of a rotating massive cylindrical shell within a vacuum. Near the inside and the outside of the shell exist two gyroscopes with their axis both perpendicular to the axis and to the radius of the rotating shell.
GR predicts that each gyroscope should rotate slightly in opposite directions around an axis parallel to the rotating shell. However, the equivalence principle seems to imply that space-time is more curved on the inside of the shell than on the outside. So it would seem that the inner gyroscope would rotate at a greater angle than the outside one. The difference in rotation should be due to the effect of frame dragging within the accelerated reference frame.
Does this make sense?
Redhat
I was thinking about an experiment that might demonstrate frame dragging via the equivalence principle.
The apparatus consists of a rotating massive cylindrical shell within a vacuum. Near the inside and the outside of the shell exist two gyroscopes with their axis both perpendicular to the axis and to the radius of the rotating shell.
GR predicts that each gyroscope should rotate slightly in opposite directions around an axis parallel to the rotating shell. However, the equivalence principle seems to imply that space-time is more curved on the inside of the shell than on the outside. So it would seem that the inner gyroscope would rotate at a greater angle than the outside one. The difference in rotation should be due to the effect of frame dragging within the accelerated reference frame.
Does this make sense?
Redhat