Tim Harford tells the fascinating stories of inventions, ideas and innovations which have helped create the economic world.
http://www.bbc.co.uk/programmes/p04b1g3c
Bonus 2: Octopus and camouflage
Episode 2 of our new podcast, 30 Animals That Made Us Smarter. This one is about the eight-limbed master of disguise and surveillance technology. The colour and texture-changing abilities of the octopus are helping researchers with developments in camouflage. Can we make robots do the same thing? With Patrick Aryee. www.bbcworldservice.com/30animals #30Animals