Who're we voting to win AGT? I'm voting for nightbirde.
Also, you can't report me bc this is a poll and not a personal question.

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 : )

i think it's about 10 mins.

actually i think that's wrong, but i don't know how to delete this.

but who knows it might be right.