On Fri, 09 May 2008 12:24:54 +0200, "Paul B. Andersen"
wrote:

Dr. Henri Wilson wrote:
On Wed, 07 May 2008 13:14:43 +0200, "Paul B. Andersen"
wrote:

Dr. Henri Wilson wrote:
On Wed, 30 Apr 2008 16:43:25 +0200, YBM wrote:

The following describes a very elegant and simple derivation of the relativistic
formula for the addition of velocities, w = (u+v)/(1 + uv/c^2).

It is due to David Mermin.
See:
http://dorigo.wordpress.com/2008/04/...ivistic-train/
It assumes the unproven second postulate is correct.

It is crap.... just like the postulate.
What does Fizeau's experiment show, Henri?

That BaTh is correct.

I see.
So according to the "BaTh", velocities transforms like this:
w = (u+v)/(1+uv/c^2)
which implies that the velocity c transforms like this:
w = (c+v)/(1+cv/c^2) = c

Why do you call your theory the "BaTh" when it is
identical to SR?

...the experiment was not sufficiently accurate to detect the difference between
the predictions of the two theories.



Henri Wilson. ASTC,BSc,DSc(T)
www.users.bigpond.com/hewn/index.htm

.....specialising in teaching physics to engineers and mathematicians....