This Way Up for Saturday 2 July 2011
We find out what earwax is, why we secrete it, and some of the ways to get rid of it. With Libby Cossar of the Hearing Association.
Claire Hardaker of Lancaster University studies online trolls and has been trawling through millions of words of their trolling.
Ned Boulting been covering the world's biggest cycle race for years. It starts this weekend and he's become so infatuated with the Tour he's just written 'How I Won the Yellow Jumper'.
We're on the hunt for the world's most wicked bugs with Amy Stewart. Amy's the writer of 'Wicked Bugs: The Louse That Conquered Napoleon's Army and other Diabolical Insects'.
Feedback loops are powerful tools to change people's behaviour. The classic example is the sign that flashes up your speed or tells you to slow down when you're driving. Thomas Goetz, the executive editor of Wired Magazine, has been looking at how feedback loops work, and where they're showing up in a consumer context.
Jonathan Watts lives in China where the north is struggling with one of its worst droughts in decades. It's got so bad the authorities are trying to solve the problem using a hi-tech water rationing system that centralises control of China's second longest river.