Albert Einstein develops a theory of relativity with some help from his shaving mirror.
Professor Kathy Sykes nominates Albert Einstein.
Scientist and broadcaster Kathy Sykes chooses the iconic physicist, Albert Einstein.
Chris Bowlby profiles self-styled socialist US presidential hopeful Bernie Sanders.
Philip Ball tells the story of Arthur Eddington's confirmation of general relativity.
Einstein said the most joy in his life came from his violin. Brian Foster investigates.
Misha Glenny traces the footsteps of Franz Kafka in his native city.
David Miliband discusses the life of Joe Slovo, a leading member of the ANC.
Anne McElvoy explores the documents telling the story of the emigre agent Jurgen Kuczynski
4 Extra Debut. Jilly Goolden nominates writer and political thinker Leonard Woolf.
Christopher Hitchens nominates Leon Trotsky, hero of the Russian Revolution.
DJ Annie Nightingale nominates the late comic Marty Feldman.
Melvyn Bragg and guests discuss the life and times of Rosa Luxemburg, revolutionary.
Michael Rosen discovers Walter Benjamin's radio works for children. Read by Henry Goodman.
Antony Beevor and Gillian Slovo talk about the novelist and war reporter Vasily Grossman.
Francine Stock presents a discussion about the Soviet writer Vasily Grossman.
Steve Richards talks to Ed Miliband, his friends and critics about his political ideas.
Purple, blue or red - Beyond Westminster asks how Ed Miliband should rebrand his party?