michel123456 Posted April 22, 2016 Author Posted April 22, 2016 This does not quite make sense... I think what you mean is that it is always possible to pick (locally in general) a Cartesian (or rectangular) coordinate system on space-time? This is a choice, it is a natural one in special relativity. IIRC the concept of time perpendicular to space has been mentioned on several occasions on this same Forum. And in literature also.
ajb Posted April 22, 2016 Posted April 22, 2016 IIRC the concept of time perpendicular to space has been mentioned on several occasions on this same Forum. And in literature also. Coordinate time in special relativity you mean? Again, this is really a choice. It comes down to the fact that inertial references frames, which are more-or-less defined as the choice of Cartesian coordinates, are a prefered class of frames in special relativity.
Rumfrd Posted April 22, 2016 Posted April 22, 2016 I don't believe you should put a scalar like mass on a vector diagram.
ChristenaR Posted April 23, 2016 Posted April 23, 2016 (edited) Wow loads of good facts.Here is my web blog - Icouldcarelessaboutscience.comAppreciate it. A good amount of postings.Here is my web site: Neverreadtherules.com Edited April 23, 2016 by Phi for All Advertising links removed per rule 2.7
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