Sweat

This episode examines the flowering of Scottish engineering genius that had its roots in the industrial revolution, including how a small length of iron pipe added to the steam engine allowed James Watt to change the world and the forgotten legacy of William Symington, who pioneered steamship technology.

There is also a look at the heroic construction of the Bell Rock Lighthouse and the huge legacy of engineer Thomas Telford, plus the wider social, economic and cultural role of these unique breakthroughs.