the littlest scientist is always formulating, testing and revising all manner of theories about his environment and many of his investigations involve testing nuances of the effects of gravity.

his latest study involves climbing exactly five stairs, and dropping his toy cars and trucks through a very specific circular opening in the stair railing. like any good scientist he repeats the action in exactly the same way again and again, undeterred by the fact that he must climb up and down and up and down the stairs.

he must be reading up on designing a proper study because he seems to understand that having a large sample size is key to being confident on the conclusions.