You can still listen to BBC iPlayer Radio via your browser by visiting bbc.co.uk/radio
A talk in which landscape architect Charles Jencks calls for a new cosmic art.
BBC Radio 3
Neuro-scientist Sarah-Jayne Blakemore discusses dramatic changes in the teenage brain.
Rana Mitter chairs a debate about the Luddite movement, to mark its 200th anniversary.
Susie Orbach challenges the obsession with personal change at Free Thinking 2011.
Economist Aditya Chakrabortty examines the impact of economic change on society.
Anne McElvoy chairs a talk about the impact of a future energy crisis on our way of life.
Philip Dodd chairs a debate on obsession with change, with Molly Dineen and Giles Fraser.
Julian Savulescu makes the case for human enhancement at the 2011 Free Thinking festival.
Historian Linda Colley delivers a lecture entitled The Present and the Past of Change.
5/5 David Petts calls for the preservation of the industrial heritage of the North East.
Maxïmo Park, Jackie Kay, and David Almond join Ian McMillan for The Verb at Free Thinking.
4/5 Laurence Scott of King's College London on the fascinating figure of the gothic heroine.
Germaine Greer questions the idea of freedom at the 2011 Free Thinking Festival.
3/5 Corin Throsby gives a talk on the fan mail Byron received.
From the 2011 Free Thinking festival, scientist Kevin Fong calls for a 'second space age'.
2/5 Rachel Hewitt on the mapping of the Scottish border, from the Free Thinking Festival.
Anne McElvoy talks to Foreign Secretary William Hague at the 2011 Free Thinking festival.
1/5 Lucy Powell gives a talk on the surprising history of novelty.
The rev Dr Giles Fraser on the 'crisis of commitment', from 2011's Free Thinking Festival.
Set during the 2011 English riots, a drama written for Free Thinking by Jack Thorne.
Matthew Sweet presents an interview with leading heart surgeon Francis Wells.
Texts and music inspired by change, performed at the 2011 Free Thinking festival.
Radio 3 and Radio 5 live join forces to debate the editorial choices behind news stories.
BBC Radio 3 & BBC Radio 5 live
Tom Service debates classical music's impact on the world with a panel of guests.
Wikipedia founder Jimmy Wales launches the 2011 Free Thinking ideas festival.