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Overview
The world is filled with the most wonderful sounds! But do you know how sound is made and why you hear it? This book explains everything you ever wanted to know about sound, and let's you do your own experiments to prove it. Tge graphic-arts illustrations of the famous scientists and inventors who experimented with sound explain even more!Synopsis
The world is filled with the most wonderful sounds! But do you know how sound is made and why you hear it? This book explains everything you ever wanted to know about sound, and let's you do your own experiments to prove it. Tge graphic-arts illustrations of the famous scientists and inventors who experimented with sound explain even more!
Children's Literature
The process of sound vibrations and the structure of the ear introduce this summary of the major inventions involving hearing and noises. A young French doctor created the first stethoscope in 1816. Alexander Graham Bell's experiences in working with deaf people inspired his invention of the telegraph and telephone. Thomas Edison was working on ways to make voices travel at the about the same time that he and Bell created the phonograph in 1877. Not long after that, Reginald Fessenden became the "Father of Radio." In 1916, Paul Langevin developed SONAR based on his study of echoes. Each of the inventions is accompanied by detailed learning activities, such as how to make a model of an ear, ways to experiment with sound, and a demonstration of how SONAR works. The colorful, often humorous, illustrations contain diagrams and pictures showing the stages of progression for many of the inventions. The book, from the "I've Discovered" series, includes a timeline, a glossary, and an index and would be a good resource for young researchers. Reviewer: Phyllis Kennemer, Ph.D.