The lack of 1 Empirical "curvature" measurement that is provable, shown, seen, repeatable for a circumference of approx 40 000 km is the only proof you need to know the Earth is not a spinning ball of water. It's still funny after 2 years reading comments from indoctrinated globe-worshipers, always the same responses, always mocking, always worplay, rhetoric, yet, never a shred of evidence to prove the pear/sphere/ball-o-wawa in space. Curved water has NOT been found, deal with it.