2/4 How the steam locomotive, the internal combustion engine and the jet engine were invented. (R)
BBC Two Wales only
9/13 Steve Backshall looks at life in the oldest desert in the world, the Namib in Africa. (R)
The team journey to Saltburn, a resort founded by the Victorian entrepreneur Henry Pease. (R)
9/13 David Attenborough looks at the evolution of mammals from reptiles 200 million years ago. (R)
5/6 Julia Bradbury discovers a railway that ran from Weymouth across Chesil Beach to Portland. (R)
BBC Two except Wales
The team are at the Royal Observatory, Greenwich, to see how the sun affects our planet.
The scientific breakthroughs that have transformed our understanding of the universe. (R)
3/4 The genesis of the machines that allow us to talk to one another across the globe.
The team are at the Royal Observatory, Greenwich, to see how the sun affects our planet. (R)
Friday 8 February 2013