wrote:
Hi,
Imagine a square with 300,000 km long sides. Diagonals are around
423,000 km long. A light is flashed at one corner. One light beam
travels the diagonal and directly reaches the observer at the opposite
corner, while the other light beam is reflected off the mirror at the
other corner and again reaches the observer.

http://i95.photobucket.com/albums/l1.../untitled3.gif

In the first figure, the delay between observed direct light and
reflected light is 0.59 seconds ( (1+1) - 1.41 ). In figure two,
suppose that one way speed of light is only 150,000 km/second in the
opposite horizontal direction (but same in the vertical direction). I
calculated that the delay would be 1.2 seconds ( (2+1) - 1.80 ). So,
can this setup detect one way light speed anisotropy, or where is my
error?


Because the source and emitter are not colocated, the speed measured
will depend upon how the two clocks are synchronized.

Paul Cardinale