11. This is also termed " apparent motion " and is the basis of movies and television. 12. Instead, apparent motion appears to arise from the visual system's processing of the physical properties of the percept. 13. Consider the apparent motion of a line of telephone poles beside a road as seen from a car. 14. A "'tide clock "'is a specially designed clock that keeps track of the Moon's apparent motion around the Earth. 15. A similar sensation of falling can be induced when the eyes detect rapid apparent motion with respect to the environment. 16. In order to observe the Ternus illusion / effect, observers view an apparent motion display known as a Ternus display. 17. Another trigger of virtual reality sickness is when there is disparity in apparent motion between the visual and vestibular stimuli. 18. It is for this reason that apparent motion is a key area of research in the domain of vision research. 19. During the 1989 earthquake, a train passing through the Tube was ordered to stop, although the operator reported no apparent motion . 20. One such frame of reference is the Hubble flow, the apparent motions of galaxy clusters due to the expansion of space.
