Ben DeLaney describes virtual reality and explains the fundamentals of how it works. He showcases several virtual reality applications and provides use cases for the technology to show how powerful it can be. While this clip depicts some outdated technology, the fundamentals of how virtual reality works are still relevant today.
Using an oscilloscope, electronic keyboard, and piano, Bill Nye shows what the waves look like for sounds of varying pitches. He also explains how notes and rhythm play a role in forming what we define as music.