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Since 1977

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Sound Pipe Waves and Sound Demonstration is a fun way to demonstrate the Doppler effect. Learn science while having lots of fun with the 30" sound pipe.

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Noise hose, singing tube, or sound pipe-whatever you call it-you'll have fun demonstrating the Doppler effect while producing five different resonant tones. Your students will not only learn science, but have lots of fun with the 30" sound pipe.