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H3-14 TWIRL-A-TUNE 10 years 1 week ago #120

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ID Code: H3-14
Purpose: Demonstrates standing wave resonances in an open tube
Description: To produce resonant frequencies of the tube, hold the tube by one end, keeping that end free for flow of air, and swing it around your head. Increasing the speed of the rotation raises the harmonic produced. Up to seven harmonics can be produced, illustrating the notes of the overtone series. The fundamental can only be produced by blowing gently into one end.
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Last edit: by zzfixk21.
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