Friends Robyn, Nadine and Caoimhe ask Nina: How does our vacuum cleaner suck up dirt from the floor? With help from fabulous Felix, she looks inside a vacuum cleaner and discovers the science behind it. Nina then takes the girls on a trip to an airport to see another invention that uses the same technology. In this windy episode, we learn all about fans and discover how to invent a vacuum cleaner of our very own.

Originally released by BBC Worldwide Learning, 2009. Streaming video file encoded with permission for digital streaming by Infobase on September 22, 2020.