This experiment demonstrates how water affects sound waves and pitch. You'll discover how different water levels create different musical notes and learn about the relationship between mass, vibration ...

A few years ago, Chris Hoff was making himself some plum wine. He had a nice big plum tree in the apartment he was renting in San Francisco, and it had been a plentiful year. During the process he ...

The film "What Is Sound?" from 1949 explores the concept of sound, explaining that sound is produced by vibrations of objects. It demonstrates various experiments showing how sounds are created and ...