robphy's latest activity

Moderator's note: Two subthreads have now been spun off into separate threads...

It is if the assumptions are someone's personal theory. Discussion of personal theories is off limits here. If they appear in a valid...

I ask again what has been asked before. I don’t believe it is a violation of PF to state: here is a set of formal assumptions I tried to...

I agree... and I was hesitant to follow up on that early comment mentioning LET... but this LET-thing has always been puzzling to me. I...

From my understanding, LET is based on the Lorentz Transformations--- somehow, maybe just as a set of formulas or maybe an element of a...

Yes. It just postulates the Lorentz transform directly. Then it makes all the usual predictions. No. LET is equivalent to standard SR...

So, this goes back to the heart of my initial query. Does LET make predictions on its own, using its own principles (whatever they may...

I think it is "Galilean and Einsteinian".

There were different versions of LET. Early versions (between 1892 and 1895) explained the failure of the negative ether drift...

LET makes all of the same predictions as standard SR; it's just a different interpretation (and one we don't discuss here since there's...

[Moderator's note: Thread spun off due to topic change, for reference only.] (I'll ask my questions here [hoping for short answers]...

These are some questions that one could ask oneself. It would be a good idea to clearly state the assumptions, using precise...

There are multiple ways to arrive at SR, and not all of them directly put in the invariant speed of light as a postulate. So-called "one...

Possibly useful demonstration: Radio Wave Properties: Electric and Magnetic Dipole Antennae Harvard Natural Sciences Lecture Demonstrations

It's crude and not-to-scale in space, but this might be qualitatively helpful...