Drones or unmanned aerial vehicles could become a common sight in humanitarian crises across Africa, if a United States-based scientist has her way.

Pia Zaragoza received funding from the UN Children’s Fund (UNICEF) to build a prototype model which could be built cheaply with a 3D printer.

The drone would enable emergency workers to operate more quickly and efficiently.

Daniel Dickinson asked her to explain how the drone works.

Duration: 3'02"