Dominoes and induction
If we have many dominoes standing up (so that the distance between two consecutive dominoes is less than the legth of one of them) and if we hit the first one, making it fall, then all the dominoes will fall, like in this photo: which is just a manner to visualize mathematical induction.
© matematita
The image belongs to the sections...:
Numbers (Numbers)
Playing (Anthology of images)