This looks like a slightly scary diagram. It's really just the same as the previous one, except I've added in the position of twin A.
From B's point of view, A is now 3/5 of a light year away (the same distance as the star was at the start, in it's frame of reference). The time according to B is 3/4 of a year.
Again, we can use the formulas to tell us what A thinks. Twin A still thinks he's at position zero, but a "B" time of 3/4 year looks to twin A as if only 9/20 year has passed.
The paradox seems to be getting worse!
But B hasn't quite finished it's journey yet. One second before it plunges into its fiery doom in the star, B decelerates back into A's frame of reference and everything changes again.
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From B's point of view, A is now 3/5 of a light year away (the same distance as the star was at the start, in it's frame of reference). The time according to B is 3/4 of a year.
Again, we can use the formulas to tell us what A thinks. Twin A still thinks he's at position zero, but a "B" time of 3/4 year looks to twin A as if only 9/20 year has passed.
The paradox seems to be getting worse!
But B hasn't quite finished it's journey yet. One second before it plunges into its fiery doom in the star, B decelerates back into A's frame of reference and everything changes again.
start
prev
next
