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 …
special relativity - On the philosophy of spacetime transformations ...
Jan 28, 2025 · In the physics we've studied upto and including special relativity, space and time are considered real physical objects each, and something like length contraction and time dilation were …
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 …
general relativity - How can space time be bent? - Physics Stack …
Oct 1, 2021 · In special relativity the metric is constant and diagonal. In general relativity the metric is not, and this is what we mean when we say spacetime is curved. How can both of them be true at …
general relativity - Does mass compress space-time? - Physics Stack ...
Mar 13, 2016 · My understanding of relativity explains that the presence of mass warps space-time so that light travelling through the warp follows at straight line but the warp itself is curved and therefore …
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 …
general relativity - Can anyone explain me how time can bend …
Jul 2, 2015 · General Relativity Einstein then went a step further. He realised that considering time and space together as spacetime allowed him to think about gravity. Einstein imagined spacetime being …
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 …
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 …
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?