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        Sound and Solids: Listening Stick

        Though air is the most common medium through which we hear sound, the vibrations that cause sound are transmitted through other substances as well. In fact, most solids and liquids conduct sound waves more efficiently than air and other gases do. Need to see it to believe it? Watch this video segment adapted from ZOOM as cast members test the sound-conducting qualities of a yardstick, a baseball bat, and a golf club. This video is available in both English and Spanish audio, along with corresponding closed captions.

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