Verkkotime dilation is the lengthening of the time interval between two events for an observer in an inertial frame that is moving with respect to the rest frame of the events (in. Verkkotime dilation is a moving clock running slow because time itself has been affected, for example because the clock is moving close to the speed of light. Verkkoa thought experiment on time dilation. Imagine a person in a train with a torch (figure 1). They shine the beam of the torch across the carriage and time how long it takes. Verkkodepicts an experiment at massachusetts institute of technology and on top of mt washington, new hampshire, using radioactive decay of cosmic ray.