Re: What space program has tested time dilation?

carlip-nospam@xxxxxxxxxxxxxxxxxxx wrote (in part):
... If a pulsar is in an elliptic orbit around another neutron star,
though, it experiences a changing gravitational potential (as it moves
closer and farther from its companion) and a changing speed (following
Kepler's laws). That means that it ought to experience time dilation. It
does -- this is measured, and agrees very accurately with the relativistic
prediction.

There's no need to reach for the exotic stars.
Just picture three people who happen to be triplets.

Given these three people, we can eliminate all
acceleration when performing the infamous
"Twin Paradox" experiment. We can also
eliminate "clock rates" and the need to "define
time" because all we have is aging, something
we can all understand.

The end result of the Triplet Experiment is very
simple, namely, identically-born people age
entirely differently depending solely on their
different speeds through space.

But there is absolutely nothing - I repeat -
- absolutely nothing - in either SR or GR
that can explain this real aging differential.

This is because Einstein's so-called "time
dilation" does not pertain to anything except
a mere subjective, observer-dependent point
of view effect caused by the lack of absolute
simultaneity.

In other words, when one clock in one frame
passes two other clocks in another frame,
then the two-clock-frame observers "see"
the passing clock "run slow" because their
own clocks are out of true synch (they are
not absolutely synchronous.)

So, even though all three clocks could be
running at the same physical rate, SR
observers would "see" the "passing clock"
"running slow."

If SR had physical or actual time dilation,
then it would be able to physically explain
the Triplet Experiment result, where real
Triplets age differently.

Forget all that unnecessary talk about muons
and neutron stars; the simple facts can be
simply seen by looking at _people_ who are
moving at different speeds through space.

And now we can see why SR cannot possibly
explain the actual age differential; it is because
SR denies all meaning to the notion of motion
through space, even though such motion is
the only possible cause of real time dilation.

--kk--

.

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