Images from two of the Scottish physicist James Clerk Maxwell’s favourite walks, near Parton in Galloway, where the Lair Burn and the River Urr run close to his house of Glenlair. Jennifer Austin’s composition, Maxwell’s Light, accompanies Selena S. Kuzman’s film. The music is one of the tracks on the CD Music for Maxwell, produced by Orkney International Science Festival and available from its online shop.