The surprising story of the hidden powerhouse behind the globalised world - the diesel engine, a 19th-century invention that has become indispensable to the 21st. It's a turtle versus hare tale in which the diesel engine races the petrol engine in a competition to replace ageing steam technology - a race eventually won hands down by diesel. Car enthusiast presenter Mark Evans gets excitedly hands on with some of the many applications of Mr Diesel's original creation, from vintage submarines and tractors to locomotive trains and container ships.moreless
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