How is space time measured?

s = spacetime, c = light speed, t = time change, and r = displacement vector

Due to the fact that spacetime is measured in terms of width, length, height, and time, it is frequently proposed that spacetime is fourth dimensional.

Two necessary parameters are the object's displacement, or the amount it moved from its starting position, and the duration of the movement in order to calculate the spacetime of an object moving through an environment free from external influences.

Moreover, spacetime can be represented using the coordinates (x, y, z, t) on a four-dimensional graph.

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Many techniques are used to measure space-time, such as atomic clock experiments, GPS technology, and astronomical observations. These techniques rely on fundamental physics concepts like gravitational time dilation, the speed of light, and the curvature of space-time caused by massive objects.