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Apr 13, 2017 at 12:39 history edited CommunityBot
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Dec 19, 2013 at 23:21 vote accept Pavel Horal
Dec 19, 2013 at 23:21 comment added Pavel Horal @JohnRennie it will surely take me some time to process this (mainly the linked answer :)). But I think I understand, that even stationary objects are always moving through the time dimension. And curvature of spacetime can transform some of this "time-velocity" into movement inside spatial dimensions.
Dec 19, 2013 at 9:04 history edited John Rennie CC BY-SA 3.0
Remove misleading stuff
Dec 19, 2013 at 8:48 comment added John Rennie @PavelHoral: I've added a shortish answer to the second part of your question. I hope this helps, though I fear even this short step into GR already raises some conceptual hurdles.
Dec 19, 2013 at 8:47 history edited John Rennie CC BY-SA 3.0
Respond to comment
Dec 19, 2013 at 8:13 comment added Pavel Horal Thank you for the answer and comments! Can you please just add a short answer on the second part of the question (see updated question)? I will accept this answer after that. Thank you very much again.
Dec 18, 2013 at 10:07 comment added John Rennie @StanLiou: I spent ages looking for that quote to illustrate my answer! Thanks :-)
Dec 18, 2013 at 10:06 comment added Stan Liou Einstein on coordinate invariance as a tough idea to understand: "Why were another seven years required for the construction of the general theory of relativity? The main reason lies in the fact that it is not so easy to free oneself from the idea that coordinates must have a an immediate metrical meaning."
Dec 18, 2013 at 9:35 history answered John Rennie CC BY-SA 3.0