
#1
Dec2807, 09:09 AM

P: 2

I hate to bring this up again, but the twin paradox explanation based on acceleration does not hold water.
Let's go back to Object A mentioned on the now locked thread posted earlier. Object A sees Object B fly by at close to the speed of light. A figures the clocks are moving more slowly on B. So A decides to verify this information. A turns on its thrusters and begins to catch up with B. As A accelerates, A notices that the clocks on B are now moving more and more normally. By the time A catches up with B, the clocks are moving at the same speed and at no point did B have a chance to catch up with A on his clocks. Therefore, A must be ahead of B. There is no way B can be anything but behind A since there is no opportunity for that to happen. However, from B's point of view, all he saw was A fly by with slower clocks. He then seens A slow down, and stop. Here again, from B's point of view, A did not have the opportunity to catch up with the B clocks. Here is the 2 million Euro question: At which point did the clocks agree on anything? When the two objects meet, the clocks must say something. What do they say? 



#2
Dec2807, 09:17 AM

Sci Advisor
PF Gold
P: 3,273

When a body accelerates its surface of simultaneity slews round.
It is the slewing of the surface of simultaneity in the accelerating/decelerating spacecraft that explains the 'paradox'. Garth 



#3
Dec2807, 09:24 AM

Sci Advisor
P: 8,470





#4
Dec2807, 10:05 AM

Math
Emeritus
Sci Advisor
Thanks
PF Gold
P: 38,898

The Twin Paradox Paradox.
You didn't like the answers you got when you posted exactly this same thing 25 minutes earlier?



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