Re: The real paradoxes in SR.

"Gerald L. O'Barr" <globarr@xxxxxxxxx> wrote in message
news:1180499559.959406.68190@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On May 29, 8:55 pm, "Jeckyl" <n...@xxxxxxxxxxx> wrote:
"Gerald L. O'Barr" <globarr...@xxxxxxxxx> wrote in
messagenews:1180496811.980563.21480@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

On May 29, 5:22 pm, "Jeckyl" <n...@xxxxxxxxxxx> wrote:
. . .

<deletes by O'Barr>

Jeckyl" <n...@xxxxxxxxxxx> wrote:
So what you THINK is physically impossible
obviosuly isn't.

O'Barr comments:
So if you really believe that a clock can really
be going both faster and slower than another clock,

From different inertial frames of reference .. yes.
That is what observers
would see. Someone moving with the clock would not
see any difference.

O'Barr comments:
Yes, from different reference frames you might
see and or measure almost anything. But if you
saw in one frame where a digital clock was going
backwards, and the other frame saw that the
same clock was going forward, what would you
think?

That I was in a different frame of reference (and why wouldit go backwards
...it only goes slower, not in the opposite direction)

You see, we are not questioning what is
measured! But intelligent beings must be
able to understand that if what is being
measured by both frames are not supportable
then something has to give.

Why?

A real physical
object cannot be doing just any two things
at once.

But that is what can be observed. It is your insistance that what is
observed as two different things from two difference frames of reference
needs to be physically made the same that causes your confusion.

In any absolute sense, a physical
thing can only be doing one thing at any
one time, it cannot be going both forward
and backwards at the same time. It cannot
also be going both slower and faster than
the same clock.

But it can be observed to be

If you do get a set of measurements
that are not possible, then something is wrong
with the measurements. We surely cannot
disagree on this.

Of course we disagree. You cannot see that things can be observed as being
different. That's your problem.

In the twin paradox, yes, it is easy to
see that in terms of measurements, you can
have each clock being measured to be slower
than the other. This is easy. But as a
point of physical fact, such an act cannot
really be physically true.

But it is . .the twin ages slower

And SR math confirms this. They really were not
both going the same rates in reality,
because only one ended up younger.

Yes .. they were. You need t odo some reading on how the twin paradox
occurs .. that it happes due to different acceleration and deceleration (ie
changing frames of reference) between the two twins.

all at the same time, then we have no need to
communicate. If you really believe that the
same photon can go passed every moving frame
there is, all with the same relative velocity,
then again, we have no need to communicate.
There really are limits to what we can think,
and still be able to communicate.

Yes .. you are quite limited in what you are
able to imagine. That's sad.

O'Barr comments:
No, that is not sad. That is what reality forces
all thinking people to do. Not all things are
possible in physical reality.

Your problem is that you think your own view of reality is all there can be.


.

Relevant Pages

  • Re: Circular motion in SR
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  • Re: Principle of equivalence
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  • Re: ABOUT THE GALILEI PRINCIPLE OF RELATIVITY
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  • Re: transformation equations
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  • Re: transformation equations
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