Enquiring Minds Want To Know

Last weekend we heard a kid come up to his mother at the booth behind us and the following conversation ensued:


Kid: "Mom, quick! I need you to explain the Laws of Physics!"
Mom: "...huh?"
Kid: "The Laws of Physics! I neeeed to knoooooow!"
Mom: "What? I don't know them!"
Kid: "Just hurry up and come over here!"


What was he looking at? This charming little fountain of course:


(taken from my phone)