Full Steam Ahead

The historians take a trip on the Flying Scotsman

The historians take a trip on the Flying Scotsman, arguably the most famous locomotive in the world, along its original route connecting London and Edinburgh - the two most important financial capitals of the Empire. Peter Ginn explores how the railways revolutionised the delivery of mail across Britain, he and Alex Langlands learn about the first electronic communication service - more than 100 years before the arrival of email - and Ruth finds out about the role of the wheeltapper. Plus, why do some railway clocks have more than one minute hand?