Resumen de Uses for the HEC BB Bag in Physics Instruction

Michael M. Hull, Manuel Becker, Florian Budimaier, Haruki Abe, Haruhiko Funahashi

• In this article, we will present the HEC BB bag, a simple but elegant model originally invented to help students imagine how air molecules move around in vacuum. The HEC BB bag is made by packing 20 to 30 BBs in a resealable plastic bag of several tens of square centimeters (see Fig. 1). When inflated fully via a straw, the volume of the bag is about 5 L in volume (see below for specifications).