This clip details the construction of an acoustic guitar. Throughout the process, it explains how specific building materials and the manner in which the components are put together affects the pitch and sound quality of the guitar.

Beakman explains how harmonicas work. He starts by explaining what sound waves are and their properties. He then explains how a harmonica uses reeds to create different sound waves.

Albert Einstein and Marie Curie, discuss the process of sound and light traveling through air, the splitting of an atom and various other scientific topics.

Homer lands on Bart after crashing into Springfield's tallest building while in his flying suit. He falls so fast his screams land after he does.

Phil demonstrates how to see sound in action using plastic wrap, a bowl, and table salt. The salt moves around the plastic wrap in response to the sound waves. Phil then maxes out the experiment using a Chladni Plate and sand, and he shows how sand makes different shapes based on the frequently that is emitted.