Why do we believe space and time are intertwined? What is the idea behind it? And how do we arrive at this conclusion?
131128
Why time is considered a dimension?
95946
What causes the expansion of space?
67531
Universe being flat and why we can't see or access the space "behind" our universe plane?
144208
Does String theory say that spacetime is not fundamental but should be considered an emergent phenomenon?
131384
understanding time: Is time simply the rate change?
117326
Why energy curves spacetime?
37443
How can something happen when time does not exist?
37973
Space-time in String Theory
139987
Special Relativity, 2nd Postulate -- Why?
115987
How can time be relative?
4645
What is time dilation really?
100690
Does superluminal travel imply travelling back in time?
42584
Curved space-time VS change of coordinates in Minkowski space
119639
Do photons bend spacetime or not?
93336
Understanding time crystals
81212
Is there really time reversibility in physics?
61024
Is there a mathematical relationship between time and entropy?