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
Canned food
Developed for the military, dodging bureaucracy and fuelled by venture capital: canned food blazed a trail many of today's biggest tech innovations have followed. Tim Harford reveals the surprising lessons and cautionary tales lurking under the lid.