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The book introduces sound waves and uses that model to explain sound-related occurrences. Like the other popular volumes, it is written by irreverent educator Bill Robertson, who offers this Sound recommendation: One of the coolest activities is whacking a spinning metal rod to create a ‘wah-wah’ effect. It’s a simple activity-the explanation incorporates several interesting properties of sound.
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The book introduces sound waves and uses that model to explain sound-related occurrences. Like the other popular volumes, it is written by irreverent educator Bill Robertson, who offers this Sound recommendation: One of the coolest activities is whacking a spinning metal rod to create a ‘wah-wah’ effect. It’s a simple activity-the explanation incorporates several interesting properties of sound.