High Tension lends an entirely different dimension to the history of the great hydro-electric Shannon Scheme of 1925-1929. Hitherto the story has been told from an engineering viewpoint. Now historian Michael McCarthy brings new perspectives to bear on the Irish Free States most audacious construction project at Ardnacrusha. How did the German and Irish workforces get on? What was life like for the 5000-odd navvies and their families, many of them...