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IPT2018-Problem9- Screaming Ballon (Ecole Polytechnique,France)

Barral, Amaury

IPT2018 Problem 9 Screaming Ballon Ecole Polytechnique: If you put a hex nut in a balloon it is possible to make it «scream» by giving a certain rotational movement to the balloon. How do the characteristics of the sound produced depend on the important parameters of the system?

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