Shelagh Fogarty is Leading Britain's Conversation.
13 June 2017, 17:48
An electrifying question that elevates the level of debate
Mystery Hour Question
How do you install high powered pylons on mountains and how do they pull the wires across mountains?
Khalid, Forrest Gate
Qualifications: Watched How Do They Do It? on telly
Answer: Helicopters deliver the pylons in sections; the cables are delivered by helicopter as well.