AW: diameter of reflected sun image

[Arthur Carlson]

The classical experiment using a mirror to detect minute rotations is not by Michelson and Morley, who used an interferometer, but by Cavendish, who measured the universal gravitaional constant in the lab.  But the technique has been used often.   --Art Carlson -----Ursprüngliche Nachricht----- Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]Im Auftrag von John Carmichael Gesendet: Tuesday, August 14, 2001 4:15 PM An: [EMAIL PROTECTED] Cc: sundial@rrz.uni-koeln.de Betreff: Re: diameter of reflected sun image Hi Fritz   Good to hear from you!  What an interesting story.  I seem to remember an experiment by Michaelson-Morley at the turn of the last century where they used mirrors to amplify the small movements in light.  (I think they were trying to prove the the old theory that Einstein later disproved that light traveled through an "either" and that its speed changed).