On Sep 7, 10:06*am, "Szczepan Bialek" wrote:
*"K1TTT" ...
On Sep 5, 5:16 pm, "Szczepan Bialek" wrote:



We do: "
"1925 - the Michelson-Gale-Pearson experiment produces a positive result
while attempting to detect the effect of Earth's rotation on the velocity
of
light. The significance of the experiment remains debated to this day, but
this planetary Sagnac effect is measured by ring laser gyros and taken
into
account by the GPS system."
of course, but this was not detecting aether movement, it was

detecting acceleration from the rotation of the earth as predicted by
special relativity.

In 1905 Einstein wrote: "Examples of this sort, together with the

unsuccessful attempts to discover any motion of the earth relatively to the
``light medium,'' suggest that the phenomena of electrodynamics as well as
of mechanics possess no properties corresponding to the idea of absolute
rest."

In "1925 - the Michelson-Gale-Pearson experiment produces a positive result"
(motion of the earth relatively to the ``light medium,'' )

no, its positive result was the acceleration caused by the rotation of
the earth, as in the michelson-morley experiment they detected no
motion with respect to a fix or any other aether... otherwise the
result would have had a predictable variation due to time of day or
year, which was not detected.