vonjd
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 Nov 14 awarded Good Question Aug 3 awarded Notable Question Jul 2 awarded Popular Question May 27 awarded Yearling May 11 awarded Favorite Question Jan 9 comment Which physical entities equal “distance times time”? @AlfredCentauri: In a way I can understand your frustration - on the other hand I still find it useful to think about e.g. $x'=x$ in terms of "velocity equals distance" which is also unitwise not correct (L/T != L) but gives an intuition why the solution is going to be exponential. Jan 9 comment Which physical entities equal “distance times time”? @AlfredCentauri: Because I am interested in the $tx(t)$ part. Jan 9 comment Which physical entities equal “distance times time”? @AlfredCentauri: Well, I think the answer is what Carl has already mentioned: That you have a constant (which is in these cases $1$) that has a unit so that both sides are unitwise equal again. Jan 9 comment Which physical entities equal “distance times time”? @AlfredCentauri: I see your point but how does the simplest ode $x'=x$ make sense then? Jan 9 comment Which physical entities equal “distance times time”? @AlfredCentauri: Yes, I am thinking that $t$ is e.g. time, $x(t)$ (or $y(t)$) is distance and x' (or y') is velocity. I just changed the original equation because I think it gives a better intuition to use $t$ and $x(t)$. Jan 9 comment Which physical entities equal “distance times time”? @JohnRennie: Yes it is :-) Jan 9 comment Which physical entities equal “distance times time”? @JohnRennie: I edited the question accordingly. Jan 9 revised Which physical entities equal “distance times time”? added 225 characters in body Jan 9 comment Which physical entities equal “distance times time”? @DavidZ: I have also tried to find a similar question on this site before posting but haven't found one either. Jan 9 asked Which physical entities equal “distance times time”? Nov 5 awarded Notable Question Oct 30 awarded Good Question Jul 25 awarded Notable Question Jul 2 awarded Curious May 28 comment How is the classical twin paradox resolved? @Joshua: Well, I think it is clear from the context that we are not talking about Newtonian mechanics here ;-) And a quick Google fight decided the matter in favour of "classical twin paradox" ;-) googlefight.com/…