Is the fabric of space time a real thing?
95681
If the universe is 3D, how is space-time like a "fabric"?
35883
Why do objects follow geodesics in spacetime?
29426
Is there a proof of existence of time?
42258
Is time dilation an illusion?
71085
In Einstein's General Relativity, do the space-time dimensions curve?
114073
What are the strings in string theory made of?
43724
What do spacelike, timelike and lightlike spacetime interval really mean?
93652
The meaning of imaginary time
27178
Can we simulate the whole universe in computer?
111371
What really is Spacetime?
17339
Is the wave-particle duality a real duality?
95763
Elastic modulii of spacetime
42584
Curved space-time VS change of coordinates in Minkowski space
12611
Better explanation of the common general relativity illustration (stretched sheet of fabric)
124408
Has relativity of simultaneity been directly observed?
42001
ALL "forces" as manifestations of properties of space-time
144208
Does String theory say that spacetime is not fundamental but should be considered an emergent phenomenon?