sci.physics.relativity

On Feb 12, 6:43=A0am, Albertito wrote:
> We are interested in seeing whether the travelling
> twin will actually return younger. So, we arrange
> two webcams on those twins, such that each one
> can see what the other is doing without pause.
> The TV signals will experience delays as the
> travelling twin is getting away, but the communication
> will not be interrupted in any moment. After a time,
> the travelling twin returns. The conclusion is that,
> once both twins are close together again at rest,
> what they're seeing directly by means of their eyes
> matches what they are seeing in their respective
> webcams. =A0So, the history of each twin has been
> recorded without interruptions. As a result, the travelling
> twin has the same age as his twin, who remained at rest.
> Each twin has recorded in his webcam the complete
> history of the other. Therefore, the solution to the twin
> paradox is that SR is badly wrong!.

A better test of the SR concept of mutual time dilation:

Two observers A and B in relative motion SR claims that A predicts
that B's clock is running slow by a factor of 1/gamma and B predicts
that A's clock is running slow by a factor of 1/gamma.

The following proposed experiments are designed to test the validity
of this claim:
1. A sends a TV picture of his clock to B and B sends a TV picture of
his clock to A.
2. A determines the ratio of B's TV clock second to his actual clock
second and call this ratio as R_ab.
3. B determines the ratio of A's TV clock second to his actual clock
second and call this ratio as R_ba.
4. If mutual time dilation is true then R_ab=3DR_ba.

Ken Seto