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New Theories / Re: How does Hamdani explain the twins paradox?
« on: Yesterday at 11:04:16 »
The twins in the "original paradox" do not have identical histories.
As I have pointed out several times previously, time dilation is always asymmetric except in the case where vrel = 0, and now we might add "or the clock histories are symmetric and result in vrel = 0", but you'd have to qualify that statement too: if they accelerate equally in opposite directions and then stop, they would appear to an observer at the starting point to be synchronised to one another, but neither could tell the time on the other's clock (or the observer's) simply by looking at his own.
As I have pointed out several times previously, time dilation is always asymmetric except in the case where vrel = 0, and now we might add "or the clock histories are symmetric and result in vrel = 0", but you'd have to qualify that statement too: if they accelerate equally in opposite directions and then stop, they would appear to an observer at the starting point to be synchronised to one another, but neither could tell the time on the other's clock (or the observer's) simply by looking at his own.