Premovic, Pavle I.
June 22, 2018
Special relativity, time dilation, postulates of special relativity, speed of light
One of the concepts of Special relativity (SR) is time dilation which depends upon the second postulate of this theory that the speed of light c (= 2.99792×108 m s-1) is the same in all inertial frames of reference . This theory states that the time interval ΔT as measured by an observer in a stationary frame (so-called the stationary observer) is longer than the time interval ΔT0 measured by an observer in a frame moving (so-called the moving observer) with a relative speed v to the first one. (In relativity, subscript 0 usually denotes the rest time and distance intervals). Of course, this initial choice which frame is stationary and which is moving is arbitrary and it could be vice versa. SR asserts that …