Visual aids Available to Purchase

Have you ever looked at a line of pylons marching across the countryside and wondered — how do they get the wires up there? If so, then you should see The Linesmen (b & w, 20 min). This tells of the men who are building the British 400,000 volt super‐grid system. Power like this needs a network of extra tough transmission lines — and extra tough men to build them. In this story, the route is across thirty‐four miles of swamps, bogs and hills in North Wales, to join the Trawsfynydd nuclear power station to the super‐grid.