proper time (from Latin, meaning own time) along a timelike world line is defined as the time as measured by a clock following that line. The proper time...

Hermann Minkowski (1907) introduced the concept of proper time which further clarified the meaning of time dilation. Special relativity indicates that, for...

The Proper Time is a 1961 film starring Tom Laughlin. Shot for roughly $28,000 in 1958, it Laughlin's directorial and screenwriting debut. Laughlin stars...

leap seconds from International Atomic Time (TAI), which is a coordinate time scale tracking notional proper time on the rotating surface of the Earth (the...

in the passage of proper time at different positions as described by a metric tensor of spacetime. The existence of gravitational time dilation was first...

future": a person may use time dilation so that a small amount of proper time passes for them, while a large amount of proper time passes elsewhere. This...

physicists reject the simple proper-time cutoff as a failed hypothesis. Time can be parameterized in different ways than proper time.: 1  One choice is to parameterize...

distance that does not change in time except due to local factors, such as the motion of a galaxy within a cluster. Proper distance roughly corresponds to...

different term, proper distance, provides an invariant measure whose value is the same for all observers. Proper distance is analogous to proper time. The difference...

distinguish it from proper time. In the special case of an inertial observer in special relativity, by convention the coordinate time at an event is the...

for unidirectional motion, proper acceleration is the rate of change of proper velocity with respect to coordinate time. In an inertial frame in which...

the same amount of proper time, and they travel further along the x–axis within that proper time than they would have without time dilation.: 220–221 ...

standard based on the notional passage of proper time on Earth's geoid. TAI is a weighted average of the time kept by over 450 atomic clocks in over 80...

The second (symbol: s) is a unit of time derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds each (24...

worldline, also called the proper time between these events. Length U upon the x-axis represents the rest length or proper length of a rod resting in...

negative that √−dX2 is the differential of proper time, while when dX2 is positive, √dX2 is differential of the proper distance. The 4-velocity Uμ has an invariant...

observer-measured displacement vector x {\displaystyle {\textbf {x}}} and proper time τ elapsed on the clocks of the traveling object: w = d x d τ {\displaystyle...

corresponding with the mean decay time of the muon in its proper frame. As the muon is at rest in S′, we have γ=1 and its proper time T′0 is measured. As it is...

phenomenon that a moving object's length is measured to be shorter than its proper length, which is the length as measured in the object's own rest frame....

ds}{dx^{\beta } \over ds}=0\ } where s is a scalar parameter of motion (e.g. the proper time), and Γ μ α β {\displaystyle \Gamma ^{\mu }{}_{\alpha \beta }} are Christoffel...

approximately matched the rate of proper time on the Earth's surface at mean sea level. Thus the exact ratio between TT time and TCG time was 1 − L G {\displaystyle...

{\displaystyle {\vec {X}}} . Also, dot denotes differentiation with respect to proper time counted along the world lines in the congruence. Finally, the trace of...

Lagrangian also makes the relativistic action functional proportional to the proper time of the path in spacetime. In covariant form, the Lagrangian is taken...

fact, pass through the calculated boundary in a finite amount of its proper time. A misconception concerning event horizons, especially black hole event...

for timelike curves, in which case τ {\displaystyle \tau } is the proper time (time measured by a clock moving along the same world line with a test particle)...

parametrized by the proper time of the object. The four-velocity is the rate of change of four-position with respect to the proper time along the curve....

widow is not entitled to Niyoga. Sixteen years after maturity is the proper time for Niyoga. A sickly person is to be avoided for the purpose. She must...

received at the proper time. Finally, if the mobile is beyond the 35 km cell range of GSM, the transmission will arrive in a neighbouring time slot and be...

demonstrate that the world lines of the inertially moving bodies maximize the proper time elapsed between two events. He also wrote that the asymmetric aging is...

of Terrestrial Time (TT), a theoretical timescale that is a rescaling of TCG such that the time rate approximately matches proper time at mean sea level...