Mike said It is quite amusing to note that the lack of any observed parallax of the stars used to be used as "proof" that the earth didn't move. Then in 1725 James Bradley managed to observe the "parallax" and it seemed that all the stars must be at the same distance. It turned out that this "parallax" was actually due to aberration and the real parallax is much smaller. Phil responds. Yet the model I described with the gyration as well as diurnal rotation, both the aberration and parallax and doppler would occur to an observer on a fixed earth as experienced. I know it is difficult (at least to me) to visualise the sun being within the orbit of the apex of the gyration, whilst still doing the 24 hour run around the world, also doing a 365 day circumnavigation as well, caused by the gyration. I had the same problem with understanding the mechanics that stated that the moon , showing its same face to us must have a revolutionary cycle equal to its orbital . It becomes clearer with a star system painted on a clear sheet, and hand rotated in the manner described over a stationary earth on the table. From inside the star system, the earth will appear to circumnavigate the sun every year, whereas this is not the reality. It is an illusion. Once again though, as I have always maintained, there being NO point of reference called zero, niether proposition can be proved. An illusion is an illusion even to instrumentation, because we calibrate them on those preconceived assumptions that support the observable reality/ilusion. It is not good enough or even morally right to excuse science of responsibility with the words that they are ever ready to update, and even reverse an idea theory, as new knowledge is proven necessary to be included. What about the damage done "like saying to the Wright brothers , you fools" What about the damage done for the last century or so by teaching children Darwin and evolution as fact, and even worse still using the fraudulent Piltdown man and the likwise questionable and lost relic called the peking man, as EVIDENCE. I'm not here criticising people for making errors. I am criticising people for taking the liberty of insisting upon everybody else who have different insights, adhering to their belief system and following them into their own self confessed likelyhood of becoming obsolete and outdated in the future. That is not integrity. It is not honest. Philip.