Re: Clock synch

jt64@xxxxxxxx wrote:
Is there problems within theory of SR to syncronise two clocks "A and B
at rest worth eachother"?

No, as long as "at rest with each other" means they are both at rest in some inertial frame (the _same_ inertial frame).


Do SR have asymetric roundtrips for A and B if both is (emitter,sender)
and receiver.

In SR, the round-trip speed of light is isotropically c in every inertial frame. So there is no asymmetry.

In SR, measured with coordinate clocks, the one-way speed of light is also isotropically c in every inertial frame.


I can understand it demands a little thought doing the synchronisation
from within an aether theory where the roundtrip can be asymetric, but
it is not that hard even there.

The theory must contain a prescription for how its coordinate clocks are synchronized (if it is based on coordinates, as all naive aether theories are). Real clocks, of course, can be synchronized in any manner you choose, and need not follow the prescription for coordinate clocks.


And i guess that within Ritz theory the roundtrip always symetric if
both A and B act as sender and receiver.

I believe that Ritz's emission theory predicts an isotropic round-trip speed of light in any inertial frame. But I have not studied his theory in detail.


Could someone tell me more about roundtrips and the theories.

I'm not sure what you want.


Tom Roberts
.