wrote:
Spoonfed wrote:

[snip]

To an inertial observer, who watches the rod slow down, stop, and
accelerate to the right again,

Wait, the acceleration is *always* in one direction (let's
say to the right).

it will always appear that the left end
of the rod is moving slower than the right end, (except for the moment
that the entire rod is stopped.)

There is *no* moment when the entire rod is stopped, in such
a frame.

Oops, I goofed here. Kim B has corrected me on this
point.

Btw I agree with Kim that you should have written
"faster" instead of "slower" here. That is why the
clocks tick slower at the left side.