This film looks at the impact of the innovations and ideas that have come out of Cambridge University’s Cavendish Laboratory over the past 140 years, and the work and legacy of sound engineer Ray Dolby, who did his PhD at the Cavendish and whose pioneering research changed the way the world listens. The Dolby family have donated £85 million to Cambridge to help reimagine the possibilities of physics now, and develop a new Cavendish Laboratory for the 21st century.