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> It doesn't really make sense to call such a space "The Fourth Dimension", any more than real life space is "The Third Dimension", It makes a lot more sense t
by tshaddox 3y ago
> It doesn't really make sense to call such a space "The Fourth Dimension", any more than real life space is "The Third Dimension",
It makes a lot more sense to refer to time as "the fourth dimension" than to refer to all three spatial dimensions together as "the third dimension." Time is indeed one of the four dimensions that we're discussing here!
Of course you can quibble that the four dimensions are not in some fixed order, but in this context we're clearly referring to time as the fourth dimension because it's the one being introduced as an addition to the other three.
- datascienced 3y agoI think time is special in Einsteins equations. It therefore should be considered special. Been a while since I read about it.
- roywiggins 3y agoIn Minkowski spacetime, time is definitely special, the metric signature for it is reversed compared to the spatial dimensions.
- JdeBP 3y agoThe headlined article was written in 1884, and it is not discussing time as "the fourth" dimension. Nor is roywiggins.
- lupire 3y agoGeometrically (not physically), time is isomorphic to a Euclidian space dimension. This is how movies work.