you’re working on the script of a movie whose plot involves a hole drilled straight through earth’s center and out the other side. you’re asked to determine what will happen if a person falls into the hole.

the correct answer for this question is:

it is system invented in 1872 that produced the first illusion of movement. basically it was a disk with a series of drawings around the edge, showing the same object in slightly different poses. when it was spun, it created the illusion of movement.

found this online : )