Engineers found a way to help airplanes avoid stall with lightweight plastic flaps that flutter with pressure changes. The flaps mimick a class of feathers that are key to birds' most daring aerial ...
KwaDukuza-born aeronautical engineer Nomathemba Khumalo, 28, sees great potential in unmanned aircraft systems (UAVs). During her final year at Wits University, she developed an agricultural UAV that ...