From: mikko.levanto@iki.fi   
      
   On 20/02/2026 11:55, Paul B. Andersen wrote:   
   > Den 19.02.2026 20:00, skrev amirjf nin:   
   >> Has anyone tried Michelson-Morley-type experiments with the ECI in mind?   
   >   
   > If you by "the ECI" mean "the non-rotating frame of reference   
   > where the centre of the Earth is stationary", this was very much   
   > in Michelson's mind.   
   > He tried to measure the speed of the ether in said frame.   
   >   
   > In Michelson's words:"the motion of the earth through the ether".   
   >   
   > https://paulba.no/paper/Michelson_1887.pdf   
      
   The measurement described in the 1887 article was not sesitive enough   
   that the difference between the ECI frame and the surface frame would   
   matter.   
      
   --   
   Mikko   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)