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Naty1
#6
Jan12-12, 01:38 PM
P: 5,632
What george describes above is this:
http://en.wikipedia.org/wiki/Einstein_synchronisation

but that is only ONE interpretation of what the 'elasped time' means. Kind of like 'left' and 'right' so we can discuss things less ambiguously. That is merely a convention, not really what "the time means".