Paul asked for a repeat. supporting links for light anistropy. http://blog.hasslberger.com/docs/Cahill_Experiment.pdf This page has an explanation , with quite a bit of professional email content at the end. but Paul, you might not want to click it when you read the site description "This site provides a glimpse of emerging new paradigms in economy, physics and new energy technologies ... divining where we are headed with this spaceship earth of ours." http://blog.hasslberger.com/2006/10/process_physics_finds_absolute.html But then I shouldn't look either if I were to make judgement because on his spirituality page, he talks of evolution.. something quite different though which won't hurt anyone at, http://blog.hasslberger.com/spirituality/ He heads, Spirituality and Religion are the counter-point to science, a complement without which Physics will not be able to achieve complete understanding of the Universe. Philip.