In this episode of O Wow Moments featuring Mr. O from the Children's Museum of Houston, my assistants and I are exploring sound and ways to make the vibrations that create sound. This time, we seeing if we can make a sound not by plucking a string, but by rubbing it, by creating a very loud device I call a 'Goose Honker.' Make sure to check out more O Wow Moment videos at www.cmhoustonblog.org.
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