Gavin Pretor-Pinney on waves: brain, radio and shock

Gavin Pretor-Pinney famous for cloud watching takes us through the story of waves. Waves surround us and the visible are heavily outnumbered by the invisible. We all know about some types of waves- the waves crashing on the beach or ripples on a pond; Pretor-Pinney looks at tidal waves and Mexican waves but he also manages to bring in microwaves, the beating heart, electromagnetic waves, shock waves and a multitude of surprising and wonderful ideas.