Science commentator Allan Blackman

Professor Allan Blackman joins Kathryn to look at how researchers have harnessed the brainwaves of a paralyzed man who was unable to speak and turned what he intended to say into sentences on a computer screen. He'll also look at the history of doping at the Olympics and touch on why gold, silver and bronze are chemically interesting. Allan Blackman is a Professor of Chemistry, School of Science, Auckland University of Technology