James Watt's new starring role
James Watt was probably one of Scotland's best known scientific figures and even his surname has been used as a unit of energy.
The engineer's face appears on the new Bank of England £50 note which has just come into circulation.
How important was Watt to the industrial revolution and what do people know about him today?
BBC Scotland visited his home town of Greenock to find out.
03 Nov 2011
- From the section Scotland