Quote:
Originally Posted by Graybeard  Dear Rascal ...
Perhaps you can help me here. And after all, what I am about to ask can be considered relative to this thread, as they display opposites.
In my blog perhaps you saw 'Space, Time & Einstein' by Paul R. Heyl. There is a section there that really puzzles me. This refers to the more 'mystical' aspect of Einsteins Theory.
If I should accelerate away from you rapidly, then time slows for me, in relation to you, the person being left behind.
But you could consider, rightly so, that you are accelerating away from me, then time is slowing for you ... in relation to me the person being left behind.
Therefore the other persons clock is always slower according to the observer. If we meet again our apparent time dilations will cancel out and things will appear normal.
Is this correct ..... or:
Is there a measurable difference in both our accelerations against the background of 'Spacetime' and one of us is really accelerating faster than the other.. the one experiencing the greater mass increase ... in which case a real and permanent time dilation is occurring so that should we meet again one of us will definitely appear older.
This has always puzzled me .... In my blog 'Space, Time & Einstein' the former is the conclusion drawn .... but it was written in 1929.
Can you help ??
Ta! greg |
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Dear Greg:
You may find considerable perspective on this ('twin paradox'/'time dilation') issue in my thread:
"
effects of the expansion of physical matter with space"
(under the topic of 'spacetime' on the index listing)
It's five pages duration and is engaged (and disengaged) frequently, by Lloyd Gillespie and dleviwing, the reflections of whom I will leave to your own interpretive discretion.
My collective and wide spectrum missive is not lost in the occasionally blurred fray.
I am personally curious for some time - and reveal some answers - about what you have just so graciously inquired of me.
Hey, Mr. Gray. How about reading the five pages and letting go with what you have to say. Lemme know what you think and if it helps, okay? You might consider picking up where the last entry leaves off (in 'effects of the expansion of physical matter with space', as well as) in this thread.
Thank you (in advance) for asking.
Please read the issued thread with your usual vigilance.
I look forward to your response (here, and there...)
Regards
-RP