[DOC] [TLE] Special relativity - Wikipedia [PAR] In physics, special relativity is the generally .... We can completely specify an 
event by ... four spacetime coordinates: The time ... and its 3-dimensional spatial 
location ... frame in relativity theory, a concept of ... Instead, any two frames that 
move at... [DOC] [TLE] Relativity of simultaneity - Wikipedia [PAR] In physics, the relativity of simultaneity is the concept that distant simultaneity  
whether two spatially separated events occur at the same time ... According to the 
special theory of relativity, it is impossible to say in an absolute sense that .... That 
is, the set of events which are regarded as simultaneous depends on the frame of
... [DOC] [TLE] Proper Time, Coordinate Systems, Lorentz Transformations | Internet ... [PAR] The essence of the Special Theory of Relativity (STR) is that it connects three 
distinct ... The relationship is precisely specified by the most profound equation of 
STR, .... physical event in the universe has a 'space-time location', and a 
coordinate .... Any object that is not accelerating can be regarded as stationary 'in 
its own... [DOC] [TLE] Fourth dimension | Define Fourth dimension at Dictionary.com [PAR] Time is considered a fourth dimension for locating points in space-time. 2. 
something beyond the kind of normal human ... fourth dimension. (frth) Time 
regarded as a coordinate dimension. A fourth dimension is required by relativity 
theory, along with three spatial dimensions, to specify completely the location of 
any event. [DOC] [TLE] space-time | physics | Britannica.com [PAR] Any now in time could be regarded as an origin from which to take duration past 
or ... The Minkowski universe, like its predecessor, contains a distinct class of 
inertial ... Every set of coordinates, or particular space-time event, in such a 
universe is ... In Einstein's theory of general relativity, the physical consequences 
of... [DOC] [TLE] Four-dimensional space - The Free Dictionary [PAR] Time regarded as a coordinate dimension and required by relativity theory, along 
... with three spatial dimensions, to specify completely the location of any event. ... 
the evolution of its corresponding level-set function in four-dimensional space. [DOC] [TLE] Tetraspace - definition of Tetraspace by The Free Dictionary [PAR] Time regarded as a coordinate dimension and required by relativity theory, along 
with three spatial dimensions, to specify completely the location of any event. [DOC] [TLE] Fourth dimension - definition of fourth dimension by The Free ... [PAR] Time regarded as a coordinate dimension and required by relativity theory, along 
with three spatial dimensions, to specify completely the location of any event. [DOC] [TLE] What is space time? - Gravity Probe B - Special & General Relativity ... [PAR] In 1906, soon after Albert Einstein announced his special theory of relativity, his 
... of relativity show that both the space and time coordinates of any event must 
get ... of its space-time representation, every particle is located along its world-
line. [DOC] [TLE] Spacetime, Relativity, Quantum Physics, and Quantum Gravity [PAR] Summaries of Spacetime, Relativity, and Quantum Physics. ... of relativity show 
that both the space and time coordinates of any event must get ... of its space-
time representation, every particle is located along its world-line. ... First some 
basics - Albert Einstein's theory of relativity is the foundation of the spacetime 
model. [DOC] [TLE] Relativistic Time  Exactly What Is Time? [PAR] The idea of relativistic time is a direct result of Albert Einstein's Theory of 
Relativity ... With this insight, time effectively becomes just part of a coordinate 
specifying an ... relativity concept of proper time, the actual elapsed time between 
two events ... we are located, or whether we are out in space with no gravitational 
effects at... [DOC] [TLE] 1 - MathPages [PAR] Lorentz would define this as the true time coordinate for every other system of ... 
The first is nothing other than Galileo's classical principle of inertial relativity, ... is 
a system of inertial coordinates, and a pulse of light is emitted from location x0 .... 
field theory at all, it's clear that

Question: In relativity theory, it's time regarded as a coordinate to specify completely the location of any event
Answer: the fourth dimension