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Not exactly. II do recall reading about acoustic models that have mathematical analogies to black holes that have been investigated...

Reading your post (and Demystifers) did encourage me to consider a different case than the ones I had considered in the past, a case...

I've come to realizie that when we spin up the disk, we have a choice to determine what stresses hold it together. If we make all the...

I recall a bit more about that now. The vector u is just the 4-velocity of a point on the rotating hoop. w is a vector perpendicular...

The system with rockets isn't a closed system, so I don't think it would be a good model at all. I'd question whether a non-closed...

Greg Egan did the non-zero extension case with a hyperelastic material model which he describes in detail. It was definitely involved...

I remember looking at relativistic hoops and disks a long time ago, but I no longer recall most of the details. I do recall Greg Egan...

The rest-mass depends on ##\omega## because of internal stress.

I'm trying to untangle the notation. I am assuming that the lab frame, S, is unprimed, so all unprimed quantites are measured in S...

I went over the calculation from Purcell from the references that others have posted - thanks to all who responded, by the way - and I...

As far as having both change, that would just double the effect, not change the order. It might be related as to linearizing around v=0...

As I dig into this a bit more, I am becoming a bit confused myself. Purcell famously explains magnetism as due to "length contraction"...

After thinking about this some, I think you have gotten some good advice when you suggested you wanted to learn more about...

Your source got trimmed - but I do find the argument that the idea that the electromagnetic force should preserve the rest mass of a...

Indeed, yes. At this point I'm not sure how familiar the OP is with the concept of covariance and what we call the covariant fomulation...