Will Self continues his 600 mile road trip on the trail of much neglected Scottish physicist James Clerk Maxwell who 150 years ago pioneered the theory of the electromagnetic waves which made mobile phones, radio, radar and GPS possible. In a bid to feel the wonder of Maxwell's work and legacy, Will is driving from Edinburgh to London in an electric car, accompanied by Akram Khan, professor of particle physics at Brunel University. Following a clash of views about the value of scientific progress, Will & Akram drive to Jodrell Bank Observatory in a bid to understand more about the application of Maxwell's equations. Producer: Laurence Grissell.