Why time slows only for moving object and not stationary observer? How the "stationary" & "moving" are decided?
8475
How is the classical twin paradox resolved?
131267
How can other processes affect measurements made with `time`?
138725
Why gravitational waves are not produced by objects moving at constant velocity?
31825
Why are objects at rest in motion through spacetime at the speed of light?
97185
Conservation of energy and Doppler effect?
16043
A simple pendulum moving at a relativistic speed - how does the period change?
36719
Gravitational time dilation at the earth's center
52952
Why do blaster bolts move slower than the speed of light?
50684
Does the sign of $\Delta x$ matter in this time dilation calculation?
80291
Relativistic velocity addition from time dilation
78717
Does velocity or acceleration cause time dilation?
26654
Relativistic time dilation on Mars compared to Earth?
139987
Special Relativity, 2nd Postulate -- Why?
9937
Does time freeze at Absolute Zero?
156661
Why don't we feel the subtle speed change of Earth's elliptical orbit?
64822
Why is speed defined like it is?
15685
Does slowing light violate relativity?