Fred ( engineering specialist at satellite manufacturer ) wrote: Bernie, All theories, doctrines, laws, and "facts" are simply the product of man's imagination. What else can they be? It doesn't really matter if the earth is moving or stationary. You can construct a model to fit any observation. But all models have the habit of becoming ever more complicated as time goes by, which then provides an opportunity for man to abandon old models in favour of more simple ones. I have not yet been convinced of the Maxwell/Einstein model, which states that the speed of light is constant for any observer, no matter how fast he is moving. I have the feeling that Maxwell "rigged the constants" of free space to suit his own ideas about electromagnetic radiation. Then Einstein accepted Maxwell's conjectures and built on them to come to the conclusion that even space and time are variable - leaving only the speed of light constant. This is man's imagination at its best. So, what is truth? I say there is no such thing. It's all in the mind of man. regards Fred --------------------------------- Be a better pen pal. Text or chat with friends inside Yahoo! Mail. See how.