## Time Dilation

We can imagine two observers in relative motion, one at speed v relative to the other.

In frame O', light travels a distance 2L' in time 2t', so

The above equation implies that time appears to pass more slowly on a moving clock since

We can imagine two observers in relative motion, one at speed v relative to the other.

In frame O', light travels a distance 2L' in time 2t', so

The above equation implies that time appears to pass more slowly on a moving clock since