Each book in this series follows a packet of energy along a journey. Each stage of the journey is described in a short chapter, and we learn what alternative paths the energy might have taken along the way. This book shows how the energy in wind is turned into a music download. It explains the science behind sound, how it can be measured, recorded and stored, what happens in a recording studio, and how our ears hear sound. The topics covered are illustrated with experiments, amazing facts and scientific discoveries

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