Re: Any theory that yields a twin paradox must be dubbed bull***

Dono wrote on Fri, 15 May 2009 19:00:24 -0700:

On May 15, 6:34 pm, stevendaryl3...@xxxxxxxxx (Daryl McCullough) wrote:
Dono says...



stevendaryl3...@xxxxxxxxx (Daryl McCullough) wrote:

Let me try one more time: you are WRONG, the measurement of OWLS
anisotropy is INDEPENDENT of the clock synchronization scheme.

That's provably not the case. As stated in the Physics FAQ:

http://math.ucr.edu/home/baez/physics/Relativity/SR/
experiments.html#...

Note that while these experiments clearly use a one-way light path
and find isotropy, they are inherently unable to rule out a large
class of theories in which the one-way speed of light is
anisotropic. These theories share the property that the round-trip
speed of light is isotropic in any inertial frame, but the one-way
speed is isotropic only in another frame. In all of these theories
the effects of slow clock transport exactly offset the effects of
the anisotropic one-way speed of light (in any inertial frame),
and all are experimentally indistinguishable from SR.

Note what it says: there are theories in which (1) the speed of
light is anisotropic, and (2) all experimental predictions made by
the theories are indistinguishable from SR. So it is not possible to
experimentally rule out these theories without ruling out SR.

But this is NOT the subject of the discussion. Let me remind you one
more time: you claimed that OWLS measurement is dependent on the clock
synchronization scheme.

It is. You have to actually think about what you've read. I've already
been through this: If theory A says that light has speed c, and theory
B says that light has different speeds in different directions, then it
follows that there must be some direction such that light has speed c_1
in that direction, where c_1 is unequal to c.

Okay. So set up a light source and a light detector so that the
direction from source to detector is in that direction. Let L be the
distance between the source and detector. Now, send a light signal out
at time t=0. According to theory A, it arrives at time L/c. According
to theory B, it arrives at time L/c_1. So theories A and B give
*different* times to the same event. So they have different clock
synchronizations.

If theory B is experimentally indistinguishable from theory A, and the
two theories give different speeds for light in some direction, then
the two theories *must* have different clock synchronizations. (Clocks
that are properly synchronized according to A are *not* properly
synchronized according to B).

--
Daryl McCullough
Ithaca, NY

You have changed the subject since you don't want to admit to error.

And when the troll dono has admited his mistakes?

http://canonicalscience.blogspot.com/2008/12/catching-big-troll.html




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