Eighteen year old Michael, from Dubai, who wants to become an engineer, talks to Keller Rinaudo, whose company Zipline has built what they say is the world’s fastest delivery drone. Travelling at more than 100 km per hour, these battery-powered aircraft look like small planes. Doctors in remote areas of Rwanda and Ghana send requests for medical supplies via text and Whatsapp, which the drone then delivers. We hear how they work and how the doctors first reacted to them.