PeterDonis's latest activity

What pair of events? There aren't any well-defined events in the case under discussion, any more than there is a well-defined worldline...

That's correct. It also can't change the underlying global topological manifold--for example, it can't make a flat planar plate into a...

Locally it is, because the coordinate system is orthogonal. But @A.T. is talking about light pulses emitted by one observer and...

Yes. No. An "eternal" black hole, which truly is vacuum everywhere, is not a physically realistic solution; it's an idealized piece of...

Charged rotating black holes can have a magnetic field, yes. We do not expect such fields to be very strong in practice because of the...

After moderator review, the thread will remain closed. Thanks to all who participated.

One other note, on isotropy: But it can be any direction; that's the point. Your method has to work the same no matter what direction...

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you can, but you’re using the time dilation formula in the calculation…. and the derivation of that formula includes the assumption that...

He already did. You just ignored it. Your reasoning is wrong because you have already forced an outcome by your choice of...

You might not think so, but you're wrong. See my response to @FactChecker in post #5 just now. I strongly, strongly suggest that you...

His attempt to get around that is to start both clocks in the same place, set them to the same time, then move one away and adjust its...

Then you're not measuring the one-way speed of light. You're just reproducing your clock synchronization convention. Your process for...

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This is not correct.