In Our Time Folgen

In a programme first broadcast in November 2018, Melvyn Bragg and guests discuss the Austrian princess Maria Antonia, child bride of the future French King Louis XVI. Their marriage was an attempt to bring about a major change in the balance of power in Europe and to undermine the influence of Prussia and Great Britain, but she had no say in the matter and was the pawn of her mother, the Empress Maria Theresa. She fulfilled her allotted role of supplying an heir, but was sent to the guillotine in 1793 in the French Revolution, a few months after her husband, following years of attacks on her as a woman who, it was said, betrayed the King and as a foreigner who betrayed France to enemy powers. When not doing these wrongs, she was said to be personally bankrupting France. Her death shocked royal families throughout Europe, and she became a powerful symbol of the consequences of the Revolution. With Catriona Seth Marshal Foch Professor of French Literature at the University of OxfordKatherine Astbury Professor of French Studies at the University of WarwickandDavid McCallam Reader in French Eighteenth-Century Studies at the University of SheffieldProducer: Simon Tillotson

Melvyn Bragg and guests discuss the properties of atoms or molecules with a single unpaired electron, which tend to be more reactive, keen to seize an electron to make it a pair. In the atmosphere, they are linked to reactions such as rusting. Free radicals came to prominence in the 1950s with the discovery that radiation poisoning operates through free radicals, as it splits water molecules and produces a very reactive hydroxyl radical which damages DNA and other molecules in the cell. There is also an argument that free radicals are a byproduct of normal respiration and over time they cause an accumulation of damage that is effectively the process of ageing. For all their negative associations, free radicals play an important role in signalling and are also linked with driving cell division, both cancer and normal cell division, even if they tend to become damaging when there are too many of them.With Nick Lane Professor of Evolutionary Biochemistry at University College LondonAnna Croft Associate Professor at the Department of Chemical and Environmental Engineering at the University of NottinghamAnd Mike Murphy Professor of Mitochondrial Redox Biology at Cambridge UniversityProducer: Simon Tillotson

Melvyn Bragg and guests discuss Bernard Mandeville (1670-1733) and his critique of the economy as he found it in London, where private vices were condemned without acknowledging their public benefit. In his poem The Grumbling Hive (1705), he presented an allegory in which the economy collapsed once knavish bees turned honest. When republished with a commentary, The Fable of the Bees was seen as a scandalous attack on Christian values and Mandeville was recommended for prosecution for his tendency to corrupt all morals. He kept writing, and his ideas went on to influence David Hume and Adam Smith, as well as Keynes and Hayek.With David Wootton Anniversary Professor of History at the University of YorkHelen Paul Lecturer in Economics and Economic History at the University of SouthamptonAnd John Callanan Senior Lecturer in Philosophy at King’s College LondonProducer: Simon Tillotson