SiennaTheGr8's latest activity

To clarify, what do you (and presumably other commenters in this thread) mean by "total" mass here? Do you mean the mass of the disc, or...

Bertozzi even filmed a simple test of this, and somebody put it on YouTube:

The same as that of the sound of one hand clapping.

I wonder... what's the speed of sound in unobtainium?

Please report back with your test results!

Here is a demonstration:

If I'm correctly understanding what you're saying, I don't think the "first-order"/"second-order" business means there's a flaw. The...

I think that would be the "proper charge density" (for the right kind of charge distribution, anyway).

Terme and conditions may apply.

Yes, because you can express both the observer's 4-velocity and the overall EM field as covariant objects (a 4-vector and an...

As an interesting(?) aside, we can "pick out" the magnetic force for a particular observer in a manifestly covariant way (I know this...

Notably, Zangwill uses the "Lorentz force = magnetic force" convention.

To be clear, the Kronecker delta is symmetric too.

You can also derive ##d \gamma = \gamma^3 (\vec \beta \cdot d \vec \beta)## fairly easily and use that to do a change of variables...

I think this is the integral you are attempting to compute. If so, I'd do it by inspection. For any integrand with a ##1/f^n(x)## it's...