↑ DaveC426913 said: ↑ "According to the general theory of relativity, gravitational time dilation is copresent with the existence of an accelerated reference frame. An what causes, justifies the exception is the center of a concentric distribution of matter, where there is no accelerated reference frame, yet clocks are still supposed to tick slowly. " Obviously the scientist that who wrote it, confirmed that indeed theren is no "noaccelerated reference frame in the center", talking relativity. so: there is no gravity, and therefore there should be no slowing down of the clocks through time dilation (or lengthening of pendulums). nor in the newtonian model of origin's graph. --but the green line shows a slowing of the clock. so : given zero gravity at the center, what justifies, causes the exception, results contrary to the normal outside effect proven in satellites? One suggestion was that overlapping gravitational fields, , pulling in different directions do cancel the effect, but continue to co-exist, ( in the realm of relativity so to speak) giving gravity a different dual nature? Please Register or Log in to view the hidden image!