Gary, In a helio-centric system the three separate/ symbiotic movements are as follows: Sun is still 1.Earth is spinning 2.moon orbits earth in same direction as earth?s spin 3.Earth/moon system orbits sun In a Geo-static case 1.The rates of 1&2 are combined and the motion is given entirely to the moon. OR The earth?s spin & moon orbiting in same direction as earth's spin is replaced with just the moons orbit in the direction with the speed exactly as observed in nature. 2.The Earth/moon system?s orbit of the sun is replaced with a sun orbiting the earth. In both cases geocentric or helio-centric constructions only change perspectives. In the geostatic one the movements are now given to the other bodies instead of ascribing any motion to the earth. This is what I mean by ?origin? of the motion. In the Geostatic case the rates at which the moon and sun orbit earth is based strictly on observation while in the Helio-centric everything is just basically reversed so that the motion is ?calculated to observation? and ascribes motion to the earth. It is just a mater of perspective, are you standing on the earth not moving or are on the sun not moving. The difference is how it would appear from the sun Vs how it appears here on earth. www.materialworlds.com offers a fairly good simm of these two perspectives......I think seeing the two different perspectives might help you to understand. It is just a matter of perspective, where are you standing not moving? Where ever that is, if you are not moving, then everything else around you must be. Gary Shelton <garylshelton@xxxxxxxxxxx> wrote:Allen, What are the three movements involved? The sun is still. What three movements do you refer to? Also, what do you mean by "origin of the movements"? With your last sentence, I hope you are right, that the differences are made up in speed and direction. But I do not know of the proof. Can you give citations to verify your statement? Sincerely, Gary Shelton [Allen wrote:] Gary, There are three movments involved in the Heliocentric version, two in a geostatic one. in both case the objects will arive at the same place in space at the same time, the only difference is the origin of the movments.The differencs are made up in speed and direction that is all. Allen [Gary writes:] Allen, I may not entirely understand what you are saying. The grammar in your third sentence above is a bit vague. However, if you are saying that the acentric explanation for the eastward shadow movement involves a 2300 mph counterclockwise tangential speed of the moon overcoming a 1000 mph counterclockwise rotation speed of the earth, then you are absolutely mistaken. See the link I gave you in my last post. The acentric explanation involves only the tangential motion of the moon versus the still sun. The geocentric explanation involves...well, no one knows what that involves exactly, because we don't have an explanation as of yet. Sincerely, Gary Shelton [Allen wrote:] The only difference is the "origin" of the motion not the relative speeds or directions. In geocentric mechanics all movement is by the sun and moon. In a-centric is due to the combination of the moons w-e orbit earth?s spin Counter clockwise spin and earth/ moon counter clockwise orbit around the sun. It is this "observational equivalence" that has allowed the A-centrist to get away with it. Again the only difference is the origin of the movement not the relative speeds or positions.