This episode focuses on a substance required for life itself: water. This common molecule, H2O (dihydrogen monoxide), is peculiar in its geometry and composition, leading to many interesting properties that have literally shaped our world. We discuss the physics of the water molecule itself before venturing into how those microscopic effects create atypical characteristics. Before that, we discuss the complexities and physics that are involved when ironing clothing, which is more complicated than it seems. Clothing materials can be considered as amorphous solids can be heated and cooled similar glass. To end of this episode, Pheely tells us about Leslie Lamport, an original computer scientist whose algorithms are used in most modern computer programs.