Re: The real twin paradox.

On Nov 28, 5:23 am, "harry" <harald.vanlintelButNotT...@xxxxxxx>
wrote:
"Sue..." <suzysewns...@xxxxxxxxxxxx> wrote in message

news:873636c4-2a93-4f87-88a4-19394f1d85f3@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx





On Nov 28, 4:40 am, "harry" <harald.vanlintelButNotT...@xxxxxxx>
wrote:
"colp" <c...@xxxxxxxxxxxxx> wrote in message

news:a32da81e-30d8-4242-811e-d233128dfc71@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

On Nov 27, 9:55 pm, "harry" <harald.vanlintelButNotT...@xxxxxxx>
wrote:
"colp" <c...@xxxxxxxxxxxxx> wrote in message

news:3f691012-f547-4146-8a75-b3796fcc60f9@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

On Nov 27, 1:05 am, "harry" <harald.vanlintelButNotT...@xxxxxxx>
wrote:
One last attempt ...

"colp" <c...@xxxxxxxxxxxxx> wrote in message

news:81a29c49-6048-4f2d-87fd-b59380b5dd98@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

On Nov 25, 5:54 am, stevendaryl3...@xxxxxxxxx (Daryl McCullough)
wrote:
colp says...

The point is that a paradox exists due to the time dilation
expected
by SR.

No, there is no paradox in the sense of contradiction.

The contradiction between SR prediction ant reality is described
below:

This thought experiment is like the classic twin paradox, but in
this
experiment both twins leave earth and travel symmetric return
trips
in
opposite directions.

Since the paths taken by the twins in this experiment are
symmetric,
they must be the same age when they meet on their return to
earth.
In this experiment the twins maintain constant observation of
each
other's clocks, from when they depart until they return and find
that
their clocks tell the same time.

Sure.

Special relativity says that each twin must observe that the
other's
clock is running slow, and at no time does special relativity
allow
for an observation which shows that the other clock is running
fast.

There is no need for that, and this has been explained to you from
the
very
start.

What has been explained from the very start?

That there is no need for an observation that "shows that the other
clock
is
running fast".

The fact that SR pedicts that such an observation can be made is part
of the paradox. Ignoring the observation means ignoring the paradox.

No, SRT doesn't really predict such an observation, see below.

SR *does* address clocks that are moving toward each other.
"General results of the Theory"
http://www.bartleby.com/173/15.html

Where "are the clocks seen to be running fast"?

They don't actually attach clocks to the gold atoms
because less than 1 gram is used in 20 years which
is barely enough to plate one Rolex. :o)

It is the various calorimeters that confirm
the clock, if it could be attached it would have to
be gamma corrected to agree with the measured
energy.

<< Computer simulation of two gold ions immediately
after colliding head-on at an energy of 200 billion
electron volts (200 GeV). >>
http://www.bnl.gov/rhic/heavy_ion.htm


<< Since the COM frame (also called center-of-momentum
frame) is chosen as the frame to measure the mass of
most compound objects, Einstein's mass-energy equivalence
formula E = mc2 continues to apply in these circumstances. >>
http://en.wikipedia.org/wiki/Relativistic_mass


Sue...





...And this machine confirms the prediction.

http://www.bnl.gov/rhic/
http://en.wikipedia.org/wiki/RHIC

Sue...

Harald-


.

Relevant Pages

  • Re: Einsteins Train Gedanken Re-visited
    ... the one moving with the earth would stay 'still' ... see we need to make it explicit) what do you claim about the clocks ... appropriate speed would keep it in sync. ... frame would then be inertial. ...
    (sci.physics.relativity)
  • Re: Kepler ,Newton and orbital geometry
    ... frame any time they need to. ... It is the actual time it takes the Earth ... clocks in sync with the axial cycle are lovely and easy to understand ... Huygens showing how clocks,the axial cycle and terrestrial longitudes ...
    (sci.astro.amateur)
  • Re: Einsteins Train Gedanken Re-visited
    ... the one moving with the earth would stay 'still' ... I thought the whole purpose of this exercise was to get clocks in sync ... frame would then be inertial. ...
    (sci.physics.relativity)
  • Re: Einsteins Train Gedanken Re-visited
    ... the one moving with the earth would stay 'still' ... I thought the whole purpose of this exercise was to get clocks in sync ... frame would then be inertial. ...
    (sci.physics.relativity)
  • Re: Einsteins Train Gedanken Re-visited
    ... The calculations for it were executed in the frame of reference ... The reason the clocks showed different elapsed times is the same ... on the surface of the earth their settings had changed. ... opposite directions at the same velocity and stop them ...
    (sci.physics.relativity)