On the inflation of a rubber balloon

• Julien Vandermarlière ^[1]
  1. [1] Collège Saint-Exupéry of Perpignan
• Localización: The Physics Teacher, ISSN 0031-921X, Vol. 54, Nº. 9, 2016, págs. 566-567
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • It is a well-known fact that it is difficult to start a balloon inflating. But after a pressure peak that occurs initially, it becomes far easier to do it! The purpose of this article is to establish the experimental pressure-radius chart for a rubber balloon and to compare it to the theoretical one. We will demonstrate that the barometer of a smartphone is a very suitable tool to reach this goal. We hope that this phenomenon will help students realize that sometimes very simple questions can lead to very interesting and counterintuitive science.