Éther  wind 2 (appendice 1)
This is following web page :
http://www3.sympatico.ca/pierrejsavard/etherwind.htm
 
     Notice that If there is only a Éther wind (or Éther draft) around the Earth in it's self-rotational plane of the Équator ,then it wil be not do whit a laser in two summit mountain,but;
 a lenght ship could do ,if this ship turn 360 degrees in a zone between Cancer tropic and Capricorne tropic ,
 and of corse when there are not wave.
    The lenght of the ship is d in the two folowing équations : X = (d)tan(Q)     , sin(Q) = V/C   
X is de absolute maximum displacement of the laser ,Q is de décline of the laser ,V is the speed of the Éther wind ,C is the speed of laser and that is the speed of lignt .