Newton's bucket...absolute space???? As many of you know, Newton used a thought experiment to prove the existence of absolut space. He argued that the curvature of the water inside a bucket while rotating, demonstrates the the true motion of the water in reference of what must be absolute space. (he used a similar thought experiment using two spheres conected by an ideal rope in an empty universe. If these spheres rotate, a tension force is created on the rope, which indicates the "real movement" in reference to absolute space). Mach argued that curvature of the water was due to the rotatino in reference of the fixed stars, and even further, he argued that if we rotate the "fixed" stars around the bucket we will obtain the same result, concluding that space is relative. Of course we will never be able to rotate the whole universe around the bucket to prove mach's theory. I wonder if anyone knows better arguments, specially under the light of recent scientific evidence, to disprove Newton's absolute space. Please provide links if research papers are available.