Mass and time relativity
32061
Why isn't the center of the galaxy "younger" than the outer parts?
138834
A question about special relativity theory
111611
When can we add a total time derivative of $f(q, \dot{q}, t)$ to a Lagrangian?
71092
What are the derivatives of position with respect to time
39989
Is gravitational time dilation different from other forms of time dilation?
133294
Are gravitational time dilation and the time dilation in special relativity independent?
61605
Advantages of using different metric signatures in relativity and QFT
115786
Speed of gravitational waves and light
78717
Does velocity or acceleration cause time dilation?
36719
Gravitational time dilation at the earth's center
155913
Lagrangian for free particle in special relativity
80645
Time for two relativistic objects to meet
44566
Is (rest) mass conserved in special relativity?
137061
Understanding the different kinds of mass in gravity
123854
Would time speed up near a large body of negative mass relative to observers in micro gravity?
32388
Does relativistic mass have weight?
60751
General relativity and the conservation of momentum