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quote: But, doesn't it work out that the mass of a body tends to infinity as it's velocity tends to the speed of light? Or is that a false assumption that I've picked up from somewhere? (I've done a lot of learning by talking so I'm never quite sure of my facts)
quote:Originally posted by RincewindHey Mickey, you're still here:)and Solvay, I followed that link about time dilation (you've probably forgotten about it by now but if you do remember...). At first I thought it wasn't relevant because the example isn't a return trip, it's one way. Then I thought it might kinda make sense. Then I thought it wasn't really relevant because a fraction of a second later the rest of the train or whatever would catch up and, I suppose the average amount of time your body, or your brain, or whatever parts of your brain perceive time, or your watch, or your radiation meter, has experienced as to how much time has passed. And my point was that if you got back to the same place, you'd be back in the same time as the people who hadn't moved. Otherwise what's that coordinates thing all about? I don't think that link really addresses that, but it took some brain bending to get me head around it so I'm not sure I've got it right.
quote: Oh, sorry, I just looked back on page 1 of this thread and realised what you were referring to.