Music and Sound
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Description
Sound is a form of energy. It happens when something moves rapidly, or vibrates. People and animals communicate by using sound. Voices and instruments can create musical sounds. This book looks at the scientific principles of sound-what it is, how it travels, how it is heard, and how it can be recorded. Find out about echoes and acoustics and learn what happens when a supersonic plane breaks the sound barrier. Book jacket.
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