Time dilation by the Lorentz factor was predicted by several authors at the turn of the 20th century. Joseph Larmor (1897) wrote that, at least for those orbiting a nucleus, individual … See more

Gravitational time dilation is experienced by an observer that, at a certain altitude within a gravitational potential well, finds that their local clocks measure less elapsed time than identical clocks situated at higher altitude (and which are therefore at higher … See more

Velocity and gravitational time dilation have been the subject of science fiction works in a variety of media. Some examples in film are … See more

• Callender, C.; Edney, R. (2001). Introducing Time. Icon Books. ISBN 978-1-84046-592-1.
• Einstein, … See more

Special relativity indicates that, for an observer in an inertial frame of reference, a clock that is moving relative to the observer will be measured to tick more slowly than a clock at … See more

High-accuracy timekeeping, low-Earth-orbit satellite tracking, and pulsar timing are applications that require the consideration of the combined effects of mass and motion in producing time dilation. Practical examples include the International Atomic … See more

• Length contraction
• Mass in special relativity See more