PeterDonis's latest activity

That is Born coordinates. I don't know what you mean by this. A number ##\omega## appears in your metric; that appears to be a fixed...

Then I'm confused. The metric you gave in post #7 is for Born coordinates.

The same people who were responsible before the AI "took over". If someone does their home work with AI assistance, it is still their...

For a critique of her treatment of Feynman from someone who was in a much better position than she to know relevant facts, see this...

As @PeterDonis said in #22, the OP calculated in the Born coordinates (see the "edit" note at the end of #20). I just "tidied up" the...

Oh, for goodness' sake. I'm sorry to sound blunt here, but if you feel cheated because you didn't think to look at the inside cover of...

I'm not sure what you're asking for in post #8. That might help here, yes. The Schrodinger Equation is (writing it in one spatial...

I'm not sure the OP is actually using the same Born coordinates for both observers. The calculation in post #7 looks like it's...

Unfortunately, that means the topic is not suitable for this forum. We exclusively focus on topics that are in the literature. We could...

Why would that be a reason not to read it? Even if it wasn't written by Feynman, strictly speaking, it's still about him, and has a lot...

What would count as such a measurement, if all the measurement results we already have that confirm the predictions of our best current...

You are misinterpreting what that coordinate restriction means. The Born ##\phi## coordinate of the rotating observers the OP is using...

I think what you mean by "regular Euclidean space" here is actually "Newtonian physics". Basically you're saying that in Newtonian...

Ok, so it's not a matter of the analogue to F-W transport not existing in Riemannian manifolds, it's a matter of whether it's considered...

Free-streaming means that the (average) density of matter is so small that the mean-free path exceeds the size of the Universe. The...