The flexible tube consists of a corrugated (ribbed) inside. When swung around in a circular motion, the difference in air speeds creates an air pressure which allows air to be pulled in the tube. As air flows between the corrugated ridges, vortices are created which create audible frequencies.
(3D30.35) Bloggles
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The flexible tube consists of a corrugated (ribbed) inside. When swung around in a circular motion, the difference in air speeds creates an air pressure which allows air to be pulled in the tube. As air flows between the corrugated ridges, vortices are created which create audible frequencies.
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