Spacetime stretching
25827
Does time expand with space? (or contract)
8077
Photons in expanding space: how is energy conserved?
71342
Physical interpretation of the Reissner-Nordstrom metric
123571
A change in the gravitational law
138377
In what limit does string theory reproduce general relativity?
143235
Twin Paradox, calculating spacetime intervals from both perspectives
121192
Proof of Lorentz contraction?
154529
Redshift and conformal time
97780
Deriving Newton's Third Law from homogeneity of Space
115333
How exactly and WHY does matter affect space-time?
42372
Space Expansion vs. Relative Motion
39940
Is spacetime flat inside a spherical shell?
63402
Euler-Lagrange equation in curved spacetime: how to calculate $\partial \mathcal{L}/\partial(\nabla_\nu A_\mu)$?
133978
Mechanics of Horizontal Stretching and Shrinking
33979
How does the curvature of spacetime induce gravitational attraction?
2929
How can we recover the Newtonian gravitational potential from the metric of general relativity?
113772
How to measure the curvature of the space-time?