The narrator explains to Donald the story of Pythagoras, who is considered by some to be the father of mathematics and music. He discusses Pythagoras' society, the Pythagoreans, and how they used mathematics to create music.
Cameron realizes that Ferris's plan to take off miles from the speedometer by pushing the pedal while in reverse isn't working. This clip can illustrate that distance cannot be a negative value.
The captain tells the squadron that he is expanding it to four members, which concerns all of the lieutenants. Lt. Purcell states that four is an unlucky number because it's not prime. He then defines a prime number.