In this activity you will investigate the phenomenon of apparent motion by making your own flip - book animations. (scientificamerican.com)
In other words, the brain perceived apparent motion with the first flip - book, but most likely did not perceive this phenomenon with the second flip - book. (scientificamerican.com)
• Extra: In this activity you tested whether the distance between objects has an effect on apparent motion, but there are other variables you can test, such as the speed at which the flip - books are flipped and the size of the circles. (scientificamerican.com)