CompuServe Messages

David >>There are two direct methods for measuring continental drift. Terrestrial geodesy measures distance between two closely placed markers near a fault line. Radi interferometry measures distances between radi receivers that can be far apart (thousands of miles) and detect changes of only inches. One such device for radio interferometry is the Global Positioning System (yes, I have those references, finally). Both methods clearly show the existence of continental drift.<< I was following your requests for the data. The GPS can't resolve to inches can it?. Anyway how many years have they tracked the motion and how fast is it? A significant factor in these measurements would the crustal tides. I can see this alone accounting for changes in feet across the atlantic twice a day. Of course time tables could be developed that could adjust the measurements according to the sun/moon phases. What have you gathered to bolster the drift theory? Kamron