Charles Darwin is an international celebrity, but Gregor Mendel holds the key to heredity.
Albert Einstein develops a theory of relativity with some help from his shaving mirror.
Satirist Joe Queenan charts the rise and fall of the 'nudge nudge wink wink' epidemic.
Anne McElvoy revisits the innovative ideas of the Scottish philosopher Adam Smith.
Professor John Searle examines the connections between the mind and the brain.
Alan Winfield talks to Jim Al-Khalili about the ethics of robots, from drones to androids.
Professor Kathy Sykes nominates Albert Einstein.
Scientist and broadcaster Kathy Sykes chooses the iconic physicist, Albert Einstein.
Fifty years after LSD was banned, Jolyon Jenkins tries to expand his mind without drugs.
Psychologist Gustav Kuhn uses magic to show just how limited our conscious experience is.
Anil Seth discusses the hard problem of understanding consciousness with Jim Al-Khalili.
Neurobiologist Colin Blakemore explains how the mind creates sight and perception.
Aleks Krotoski explores if some our anxieties around AI and automation are cultural.
Wole Soyinka explores the notion of dignity within a climate of fear.
Melvyn Bragg explores the ideas architecture expresses about our past and identity.
Melvyn Bragg and guests discuss the scientific study of life, originated by Aristotle.
Adrian Moore explores the idea of infinity through history
Does a second feel the same for a fly, a bird, or a swordfish, as it does for me?
A feature in which artists give insight into their creative process.
Ernie Rea and guests discuss the appeal and direction of 'New Atheism'.
Melvyn Bragg and guests discuss the 12th century Islamic philosopher, Averroes.
Melvyn Bragg discusses the Persian Islamic philosopher Avicenna.
Melvyn Bragg and guests discuss the Jacobean thinker Francis Bacon and Baconian Science.
Nobel Prize-winning chemist Sir Harry Kroto chooses the philosopher Benedict Spinoza.
Melvyn Bragg and guests discuss Henri Bergson's ideas about our experience of time passing
Melvyn Bragg and guests discuss influential British philosopher Bertrand Russell.
Robin Ince listens back to some of the BBC archive of philosopher Bertrand Russell.
Sarah Dunant looks through history to understand apparently irrational behaviour.
Josie Long explores uncertain territory.
Jo Brand joins Brian Cox and Robin Ince for witty, irreverent science chat.