John Kennaugh wrote in message

Paul B. Andersen wrote:
John Kennaugh skrev:
This is my version of a paradox described by Waldron.
S |---L--| A B--v
Source S. Observer A stationary w.r.t S Observer B moving at v away
from S. A has an interferometer and shows that exactly n wavelengths
occupy a distance L, the length of the interferometer. He can
calculate the wavelength as L/n so
frequency Fo = cn/L ---------------- [1]
He signals the value n to B
Now in B's FoR length L becomes L' = L x sqr(1-vv/cc)
He calculates the wavelength as L'/n

Then 'he' doesn't know how to use the LT.
Wavelength doesn't transform like the length of a rod!

The length of the interferometer *does* transform 'like the length of a
rod'.

And wavelenght is defined with non-movng interferomers. Period.
You are cheating - and you know it.

Dirk Vdm