
Ticking clocks, claps of thunder, the human voice--sound is anything that can be heard. Hearing sound is one thing, but understanding just how it works and what its properties are is quite another. Answering these questions and others concerning supersonic speed and breaking...

Hearing sound is one thing, but understanding exactly how it works and what its properties are is another altogether. Answering questions concerning supersonic speed and breaking the sound barrier, how the human voice and ear work, and the age-old question of whether a tree falling...