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On Dec 20, 11:11, Pentcho Valev <pva...@yahoo.com> wrote:
> In discussing the Sagnac effect, both relativists and anti-relativists
> make the following mistake:
>
> http://www.mathpages.com/rr/s2-07/2-07.htm
> "Quantitatively, if we let w denote the angular speed of the loop,
> then the circumferential tangent speed of the end point is v = wR, and
> the sum of the speeds of the wave front and the receiver at the "end"
> point is c-v in the co-rotating direction and c+v in the counter-
> rotating direction.....This analysis is perfectly valid in both the
> classical and the relativistic contexts."
>
> The values c-v and c+v above are "perfectly valid" only in the
> relativistic context. If by "classical" the author means "Newtonian",
> the analysis is by no means "perfectly valid". According to an
> observer at rest, in the classical context, the speed of light is c+v
> in the co-rotating direction and c-v in the counter-rotating direction
> so the correct text would be:
>
> "Quantitatively, if we let w denote the angular speed of the loop,
> then the circumferential tangent speed of the end point is v = wR, and
> the sum of the speeds of the wave front and the receiver at the "end"
> point is c in the co-rotating direction and c in the counter-rotating
> direction."

http://www.mathpages.com/rr/s2-07/2-07.htm
"It's also worth noting that there is no Doppler shift involved in a
Sagnac device..."

If this is experimentally confirmed, then the Sagnac effect clearly
confirms the ballistic theory and refutes relativity. The Doppler
shift, just like the gravitational redshift, obeys the formula

F = S/L

where F is the frequency measured by the receiver, S is the sum of the
speeds of the light and the receiver at the moment of reception and L
is the wavelength. According to the ballistic theory (see above), S=c
in both directions and therefore the prediction is: "no Doppler
shift". Relativity gives S=c-v in the co-rotating direction, S=c+v in
the counter-rotating direction and therefore the prediction is: "two
different Doppler shifts".

Pentcho Valev
pvalev@yahoo.com