June 3rd, 2015
Episode 270 of 836 episodes
LED lighting, solar power and lasers are just some of the electronics revolutionised by two obscure chemical elements - gallium and indium. Laurence Knight hears from Mike Simpson of Philips why we will only need to replace our lightbulbs once every two decades. He travels to Sheffield University where research centre head, Jon Heffernan, explains what III-V materials are and why making an LED is like baking a pizza. Meanwhile, chemistry stalwart Prof Andrea Sella of UCL, demonstrates these two metals' surprisingly buttery melt-in-the-mouth properties. (Photo: Times Square New Year's Eve ball, Credit: Jeff Zelevansky/Getty Images)
Welcome to the Brain Training Podcast, the daily audio workout for your head. In this podcast we have two games for you, each with three rounds which get progressively harder. To enjoy the full experience, relax, and avoid distractions whilst you listen.