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  1. special relativity - What do spacelike, timelike and lightlike ...

    Mar 11, 2015 · Space-like is a hypothetical spacetime where causality is dictated by faster than light FTL speed limit and when projected in our time-like or light-like spacetime this could even resemble to …

  2. special relativity - On the philosophy of spacetime transformations ...

    Jan 28, 2025 · When studying more advanced books on relativity and covariance however, the only real thing is the space-time interval, while the spatial components and time component of the interval …

  3. general relativity - How exactly does curved space-time describe the ...

    So much for the explanation of how curved space-time (discussion above was just about space; if you introduce special relativity into the picture, you'll get also new effects of mixing of space and time as …

  4. general relativity - Space is stretching. Is time also "stretching ...

    May 25, 2025 · That aside: General Relatively says that time is inexorably linked with space (they bend alongside each other). Is time also affected by/similarly to the expanding of the fabric of space? Is …

  5. Why is spacetime in special relativity hyperbolic?

    Jun 21, 2022 · In Galilean relativity, spacetime is 4 dimensional, flat and Euclidean. In Einstein's (special) relativity spacetime is 4 dimensional, flat but hyperbolic. Why is it hyperbolic?

  6. general relativity - Does gravity CAUSE the bending of spacetime, or IS ...

    Jun 27, 2018 · General Relativity is usually referred to as a "theory of gravity", in which case we can think of the answer as the latter: by definition, gravity is the bending of space-time. On the other hand …

  7. general relativity - Why is Spacetime described as flat even though we ...

    Aug 23, 2023 · I’ve always heard and seen diagrams that show spacetime as being “flat” or in 2 dimensions with curvature. How does this correspond to the 3 spacial dimensions that we perceive to …

  8. general relativity - Why would spacetime curvature cause gravity ...

    Mar 12, 2014 · It seems that there is a common misunderstanding about Einstein's general relativity theory: general relativity is a theory of space and time. From general relativity, the presence of …

  9. special relativity - Time-like separated and Space-like separated ...

    Oct 28, 2024 · Mathematically these correspond to the possibilities for the sign of the spacetime interval. You could (in principle) go between time-like separated events by slower than light travel. To go …

  10. Why does everyone say that the faster you move through space, the ...

    Nov 2, 2021 · People who say "the faster you move through space, the slower you move through time" have it the wrong way around. It's really "the faster you move through space, the faster you move …