Professor Ian Akyildiz of the Georgia Institute of Technology (2nd from right) presented a day-long tutorial on wireless sensor networks at the University of Pretoria. In attendance at the tutorial were, from left: Prof Wilhelm Leuschner (Head of the Department of Electrical, Electronic and Computer Engineering), Prof Robin Crewe (Vice-Principal), Prof Gerhard Hancke (Department of Electrical, Electronic and Computer Engineering), and right, Prof Calie Pistorius (Vice-Chancellor and Principal of the University of Pretoria). .