On his search for the characters of the 19th century, Mark discovers that beer was drunk instead of water as the fermentation process killed off bugs.
Mark Williams examines the trials of the great Scottish inventor William Murdoch, whose experiments led to the first gas-lit house and gas-powered vehicles.
Did you know the beer pump kick started a power revolution? Mark takes us from the beer cellar to bridges across the Tyne, all powered by hydraulics.
The story of how the Cornish mining industry developed from picking pebbles out of streams to building a honeycomb of mines running beneath the sea.
How did beautiful silks lead to today's computer revolution? The answer: binary code. Mark Williams takes us through its invention.