pervect's latest activity

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...

It seems to me that if you define the Lorentz force as being only due to the magnetic field, the Lorentz force is perpendicular to the...

I'm not all that familiar with fiber bundles, but I keep running into them, so this might be a good example of how to think and talk...

I had to look this up, possibly there is some confusion over wording. What I wrote was in the thread on Born rigidity, and what the...

My recollection is that there is a simple exponential relationship between mass ratio and maximum rapidity, regardless of the thrust...

Possibly of interest. https://arxiv.org/abs/1409.4648 "Fermi-Normal, optical, and wave-syncrhonus coordinates for spaceetime with a...

Because of the interferometer design, the beam bounces back and forth multiple times, making the effective length (and the storage time)...

My gut reaction is that it's unrealistic to believe one can maintain such a high acceleration for such a long time. But that's not...

My understanding is that the test masses in Ligo essentially follow space-time geodesics (aka are in free fall), ignoring some of the...