For most of the Earth's history, life consisted of the simplest organisms; but then something happened that would give rise to staggering diversity, and, ultimately, life as complex as that which we see today. Scientists are still struggling to figure out just what that was.
2015 • Nature
Explore the hidden history and super science of hot air balloons, synthetic rubber and metal detectors.
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 century. 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. Splendidly, car enthusiast presenter Mark Evans gets excitedly hands on with some of the many applications of Mr Diesel's - yes, there was one - original creation, from vintage submarines and tractors to locomotive trains and container ships. You'll never feel the same about that humble old diesel family car again.