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You may be surprised to discover that the prices of many of the world's key metals are set on a raucous trading floor in London with gangs of men shouting at each other. The London Metals Exchange (LME) is a blast from the past and so today we visit the LME and ask whether or not - in the digital age - this is really the best way to price the metals on which the modern world depends. LME's deputy chief executive, Diamuid O'Hegarty, gives us a guided tour.

And we talk to Vic Hayes, the man who developed something called the "802.11 standard". Never heard of it? 802.11 sets the standards for WiFi operation. He tells us about his work and how it came about. Plus the secrets of a winning workplace personality. Lucy Kellaway on the dos and don'ts of impressing your boss via the sheer strength of your character.