Physics - Time dilation

Time dilation is a concept in physics rooted in Einstein's theory of relativity, where time is observed to pass at different rates depending on relative velocity or gravitational fields. Special relativity shows that as an object approaches the speed of light, time slows down for it relative to a stationary observer. Similarly, in general relativity, stronger gravitational fields cause time to slow down. This phenomenon has been confirmed through experiments with atomic clocks and has practical implications in technologies like GPS.